SUBDIVISION REGULATIONS
FOR
MCMINNVILLE PLANNING REGION
MCMINNVILLE, TENNESSEE
MCMINNVILLE
REGIONAL PLANNING COMMISSION
David
Marttala, Chairman
Jerry
Williamson
Julia
Dyer
Steve
Harvey
Donald
Hillis, Alderman
Royce
Davenport, Mayor
TECHNICAL ASSISTANCE FROM:
CITY OF MCMINNVILLE, TENNESSEE
DEPARTMENT OF PLANNING AND ZONING
JIM BROCK, DIRECTOR OF PLANNING AND ZONING
DAVID BAIRD, CITY PLANNER
ADOPTED NOVEMBER 14, 1995
(Amended April 8,
1997 and December 9, 1997)
TABLE OF CONTENTS
PAGE
Suggested Steps for a Developer .................................................................................. v
ARTICLE I GENERAL
PROVISIONS ........................................................................ 1
A. Purpose
................................................................................................................. 1
B. Authority
................................................................................................................. 1
C. Jurisdiction
............................................................................................................ 1
D. Definitions
............................................................................................................. 2
E. Variances
.............................................................................................................. 5
F. Relationship
to Zoning Code and other Regulations......................................... 5
G. Separability............................................................................................................ 6
H. Repeal
of Previous Regulations.......................................................................... 6
I. Amendments.......................................................................................................... 6
ARTICLE II PROCEDURE
FOR PLAT APPROVAL ............................................... 7
A. General
.................................................................................................................. 7
B. Filing
Fee............................................................................................................... 8
C. Plat
Standards....................................................................................................... 8
D. Preliminary
Plat Requirements ........................................................................... 9
E. Procedure
for Preliminary Plat Review............................................................. 10
F. Final
Plat Requirements .................................................................................... 12
G. Procedure
for Final Plat Review........................................................................ 13
Financial
Guarantees in Lieu of Improvements ............................................ 15
Certifications
.................................................................................................... 15
H. Inspections
Procedures ..................................................................................... 17
I. Warranty
of Improvements.................................................................................. 18
J. Recording
of Final Plat....................................................................................... 18
K. Grounds
for Denying Plat Approval................................................................... 18
ARTICLE III DESIGN
AND SPECIFICATIONS ........................................................ 19
A. Suitability
of the Land ......................................................................................... 19
B. Special
Requirements for Floodable Areas .................................................... 19
C. Monuments
.......................................................................................................... 21
D. Streets
- Design Standards............................................................................... 21
General
Standards of Design ........................................................................ 21
Minimum
Street Right-of-Way Widths............................................................ 22
Minimum
Street Surfacing Widths ................................................................. 23
Additional
Right-of-Way on Existing Streets ................................................ 23
Substandard
Existing Streets......................................................................... 23
Street
Grades .................................................................................................. 24
Curves
.............................................................................................................. 24
Intersections
..................................................................................................... 25
Dead-End
Streets (Cul-de-sacs).................................................................... 25
PAGE
Private
Streets or Permanent Vehicular Easements................................... 26
Reserve
Strips.................................................................................................. 26
Special
Treatment ........................................................................................... 26
Sidewalks
......................................................................................................... 26
Streets
in Commercial Developments .......................................................... 27
Street
Names ................................................................................................... 27
Warning
and Regulatory Signs....................................................................... 28
E. Streets
- Construction Procedures and Specifications .................................. 28
Street
Construction Cross-Sections.............................................................. 28
Subgrade
Preparation..................................................................................... 28
Street
Drainage................................................................................................ 29
Pavement
Base Preparation.......................................................................... 30
Prime
Coat........................................................................................................ 31
Foundation/Binder
Course.............................................................................. 31
Final
Pavement/Wearing Surface.................................................................. 31
Curb
and Gutter................................................................................................ 32
Road
Bank Seeding and Erosion Control..................................................... 32
Inspections,
Testing and Material Certifications........................................... 32
F. Utilities
- General Standards ............................................................................. 33
Easements
....................................................................................................... 33
Installation
......................................................................................................... 33
G. Water
Distribution System................................................................................. 33
General
Standards of Design......................................................................... 33
Accessibility...................................................................................................... 34
Construction
Standards................................................................................... 34
Minimum
Pipe Sizes........................................................................................ 34
Service
Connections........................................................................................ 34
Fire
Protection ................................................................................................. 35
Inspections,
Testing and Material Certifications........................................... 35
As-Built
Drawings............................................................................................. 36
H. Waste
Water Systems ....................................................................................... 36
General
Standards of Design......................................................................... 36
Accessibility...................................................................................................... 36
Design
Period.................................................................................................. 36
Minimum
Size and Construction Standards.................................................. 36
Service
Connections........................................................................................ 36
Protection
of Water Supplies.......................................................................... 37
Inspections,
Testing and Material Certifications........................................... 37
As-Built
Drawings............................................................................................. 37
Subsurface
Sewerage Disposal Systems.................................................... 37
I. Other
Utilities ...................................................................................................... 38
J. Lots ...................................................................................................................... 38
To
be Buildable ............................................................................................... 38
Lot
Lines ........................................................................................................... 38
Minimum
Lot Size ............................................................................................ 38
Building
Setback Lines ................................................................................... 39
Minimum
Street Frontage................................................................................ 39
Off-Street
Parking ........................................................................................... 39
K. Drainage
............................................................................................................. 40
Drainage
Plan Required.................................................................................. 40
Removal
of Spring and Surface Water.......................................................... 40
Other
Watercourses......................................................................................... 40
PAGE
Storm
Drainage Under Streets....................................................................... 40
Accommodation
of Potential Upstream Development ................................ 41
Responsibility
for Downstream Drainage...................................................... 41
Storm
Water Retention.................................................................................... 41
Erosion
Reduction............................................................................................ 41
L. Preservation
of Natural Features....................................................................... 42
ARTICLE IV SPECIAL
DEVELOPMENTS................................................................ 43
A. Planned
Unit Development Subdivision Standards ....................................... 43
B. Large-Scale
Developments .............................................................................. 43
C. Condominium
Developments ........................................................................... 44
ARTICLE V ENFORCEMENT
AND PENALTIES FOR VIOLATION .................... 45
ARTICLE VI ADOPTION
............................................................................................. 47
APPENDIX A ILLUSTRATIONS................................................................................... 48
1.
Standard Plat Format
2.
Standard Title Blocks
3.
Curve Radii
4.
Angle of Intersection
5.
Minimum Spacing of Street Jogs
6.
Cul-de-sac Designs
7.
Minimum Local Street Widths
8.
Minimum Collector Streets Widths
9.
Local and Minor-Collector Streets Thickness Cross-Sections
10.
Major-Collector Street Thickness Cross-Section
11.
Curb and Gutter Details
APPENDIX B FINAL
PLAT CERTIFICATIONS......................................................... 60
APPENDIX C CHECKLIST
FOR PRELIMINARY PLAT .......................................... 64
APPENDIX D CHECKLIST
FOR FINAL PLAT ......................................................... 68
APPENDIX E SUBDIVISION
INSPECTION FORM.................................................. 71
APPENDIX F ADDRESSES
OF PERTINENT AGENCIES.................................... 73
SUGGESTED STEPS FOR A DEVELOPER OF A SUBDIVISION
Throughout the following process, the owner/developer is strongly
encouraged to personally participate in consultations and meetings regarding
the development.
1. Confer
with the Planning Commission and its Staff Planner to become thoroughly
familiar with the subdivision requirements, the major road plan and other
public improvements which might affect the area to be subdivided.
2. Have
preliminary sketch plat prepared by a reputable state-licensed surveyor.
3. Discuss
preliminary plat with staff representative. This pre application review by a
trained land planner may save the subdivider time and costly revisions as well
as possible savings through better design.
4. If
development will use individual septic tanks, submit plat to Tennessee
Department of Environment and Conservation, which may place restrictions on
number, size, and use of lots. The timing of approval by the McMinnville
Regional Planning Commission is dependent on the Tennessee Department of
Environment and Conservation results.
5. Submit
required copies of the preliminary plat to the Planning Commission in advance
of its regular monthly meeting.
6. See
city engineer or designated approving agent(s) for street and utility
specifications. Obtain Tennessee Department of Environment and Conservation
approval of water and sewer plans and submit signed plans to the McMinnville
Regional Planning Commission.
7. After
preliminary plat approval has been granted, develop subdivision according to
preliminary plat and the required modifications, if any. Install improvements.
8. Prepare
final plat.
9. Obtain
signatures on certificates from street and utility officials certifying that
improvements have been made (or that a financial guarantee has been
established).
10. Submit
final plat to the Planning Commission for approval. When approved, the Planning
Commission secretary will sign the certificate of approval for recording.
11. The
subdivider records the plat with the county Register of Deeds' office and is
now ready to sell the lots.
SUBDIVISION REGULATIONS
Of
The McMinnville Regional Planning Commission
McMinnville, Tennessee
ARTICLE I GENERAL PROVISIONS
A. Purpose
Land subdivision is the first step in the process of
community development. Once land has been cut up into streets, lots, and blocks
and publicly recorded, the correction of defects is costly and difficult.
Subdivision of land sooner or later becomes a public responsibility, in that
roads and streets must be maintained and various public services customary to
urban areas must be provided. The welfare of the entire community is thereby
affected in many important respects. It is therefore in the interest of the
public, the developer, and the future owners that subdivisions be conceived,
designed and developed in accordance with sound rules and proper minimum
standards.
The following subdivision regulations guiding the
McMinnville, Tennessee, Regional Planning Commission (hereafter referred to as
the Planning Commission) are designed to provide for the harmonious development
of the regional area; to secure a coordinated layout and adequate provision for
traffic, light, air, recreation, transportation, water, drainage, sewer, and
other sanitary facilities.
B. Authority
These subdivision regulations are adopted under the
authority granted by Section 13-3-401 through Section 13-3-411 and Section
13-4-301 through Section 13-4-309 of the Tennessee Code Annotated. The
Planning Commission has fulfilled the requirements set forth in these statutes
as a prerequisite to the adoption of such regulations, having filed on June 28,
1995 a certified copy of the Major Road Plan in Note Book 18, Page 388 and
Cabinet B, Slide 134-A in the office of the Register of Deeds of Warren County,
Tennessee.
C. Jurisdiction
These regulations shall govern all subdivisions of
land within the corporate limits of McMinnville, Tennessee, and its planning
region, as now or hereafter established.
Any owner of land within the City of McMinnville or
within its planning region wishing to subdivide land shall submit to the
Planning Commission a plat of the subdivision according to the procedures
outlined in Article II, which plat shall conform to the minimum requirements
set forth in Article III. Improvements shall be installed as required by
Article III.
D. Definitions
Except as specifically defined herein, all words used
in these regulations have their customary dictionary definitions where not
inconsistent with the context. For the purpose of these regulations, certain
words or terms are defined as follows:
The term "shall" or "will" is
mandatory. When not inconsistent with the context, words used in the singular
number shall include the plural and those used in the plural number include the
singular. Words used in the present tense include the future.
1. Building permit: A written permit issued by the
McMinnville Office of Codes Enforcement authorizing construction, renovation,
or repairs to a structure.
2. Building setback line: A line, as required by the
McMinnville Zoning Code, beyond which a building cannot extend. Said Code establishes front, side and rear
setback lines.
3. Dedication: The setting aside of land by the owner
for acceptance by the public for some public use.
4. Developer: An individual, partnership, corporation, or
other legal entity or agent thereof which undertakes the activities covered by
these regulations. The term
"developer" includes "subdivider", "owner", or
"builder".
5. Easement: The right to use another person's property,
but only for a limited and specifically named purpose; the owner generally continues
to make use of such land since he has given up only certain, and not all,
ownership rights.
6. Engineer: A qualified Civil Engineer registered and
currently licensed to practice engineering in the State of Tennessee.
7. Financial guarantee for improvements: A guarantee in
the form of an escrow account, letter of credit, certified check, or other
method approved by the Planning Commission to ensure completion of required
subdivision improvements.
8. Improvements: Physical changes made to raw land and
structures on or under the land surface in order to make the land more usable
for the activities of man. Typical
improvements in these regulations would include but not be limited to grading,
street construction, drainage, and utilities.
9. Inspection: A
physical examination of an improvement, or phase of an improvement, required
under the provisions of these regulations by an appropriate official to ensure
that said improvement meets the required standards. Inspections must be completed on all street, drainage and utility
(water and sewer) improvements.
10. Lot: A tract, plot or portion of a subdivision or other
parcel of land intended as a unit for the purpose, whether immediate or future,
of transfer of ownership or for building development.
a. Lot area: The computed ground area inside the lot
lines.
b. Lot frontage: The side of the lot nearest the public
street. All sides of a lot adjacent to streets shall be considered frontage.
c. Lot lines: Boundaries of a lot; includes front, rear,
and side lot lines.
d. Lot width: The distance between side lot lines
measured at the building setback line.
11. Major Road Plan: The official map, as adopted by the
McMinnville Regional Planning Commission, on which the planned locations of
present and future municipal arterial and collector streets are indicated.
12. Permanent vehicular easement: A right-of-way for
vehicular traffic which is not intended to be dedicated to the local
government. All permanent vehicular easements shall meet all construction
requirements of a public street.
13. Planning Commission: The McMinnville Regional Planning
Commission, its commissioners, officers, and staff.
14. Plat: The map, drawing, or chart on which the
subdivider's plan of subdivision is presented and which he submits for approval
and intends in final form to record; it includes plat, plan, plot and replot.
15. Right-of-way:
A strip of land occupied or intended to be occupied by any or all of the
following: a street, road, crosswalk, railroad, electric transmission line, oil
or gas pipeline, water main, sanitary or storm sewer main, or for another
special use. The usage of the term "right-of-way" for land platting
purposes shall mean that every right-of-way hereafter established and shown on
a final plat is to be separate and distinct from the lots or parcels adjoining
such right-of-way and not included within the dimensions or areas of such lots
or parcels. Right-of-way intended for streets, crosswalks, water mains,
sanitary sewers, storm drains, or any other use involving maintenance by a
public agency shall be dedicated to public use by the preparer of the plat on
which such right-of-way is established and shall be covered by any necessary
easements.
16. Staff
Planner: The representative of the Local Planning Assistance Office serving
as technical advisor for the Planning Commission.
17. Street:
A public way, provided for the accommodation of vehicular traffic, or as a
means of access to property, and includes streets, avenues, boulevards, roads,
lanes, alleys, or other public ways.
Streets shall be classified as follows:
a. Arterial: Street and highways used primarily for
movement of fast or heavy traffic within and through the municipality; a
secondary function is land access. These are usually shown on the Major Road
Plan.
b. Collector: Streets which carry traffic from minor
streets to the arterial streets and highways. This usually includes the
principal entrance street(s) or streets of major circulation of a residential
development. Collectors serve the internal traffic movement within a section of
the municipality and connect this section with the arterial system.
c. Cul-de-sac: Permanent dead-end streets or courts with
a paved turnaround designed so that they cannot be extended in the future.
d. Local: A street designated to accommodate local
traffic, the major portion of which originates along the street itself. The
major function of a local street is land access. May also be called minor
residential or minor commercial streets.
e. Marginal access: Minor streets which are parallel and
adjacent to arterial streets and highways, and which provide access to the
abutting properties and protection from the through traffic.
18. Subdivision: The division of a
tract or parcel of land into two (2) or more lots, sites, or other division
requiring new street or utility construction, or any division of less than five
(5) acres for the purpose, whether immediate or future, of sale or building
development, and includes resubdivision and when appropriate to the context,
relates to the process of resubdividing or to the land or area subdivided. Section 13-4-301 and 13-3-401 of Tennessee
Code Annotated.
19. Surveyor: A qualified surveyor
registered and currently licensed to practice surveying in the State of Tennessee.
20. Utility: A service to the public;
including, but not limited to, sanitary and storm sewers. water, electric
power, gas, telephone and other communication means, police and fire
protection, garbage collection, mail, and street lighting.
21. Warranty of Improvements: A
surety in the form of an escrow account, letter of credit, certified check, or
other method approved by the Planning Commission to warranty improvements made
under the provisions of these regulations for a specified period of time.
22. Zoning Code: The zoning
regulations adopted by the City of McMinnville, Tennessee.
E. Variances
1. General: Where the Planning Commission finds that
extraordinary hardships or practical difficulties may result from strict
compliance with these regulations and/or the purposes of these regulations may
be served to a greater extent by an alternative proposal, it may approve
variances to these Subdivision Regulations so that substantial justice may be
done and the public interest secured, provided that such variance shall not
have the effect of nullifying the intent and purpose of these regulations; and
further provided the Planning Commission shall not approve variances unless it
shall make findings based upon the evidence presented to it in each specific
case that:
a. The granting of the variance will not be detrimental to the
public safety, health, or welfare or injurious to other property;
b. The conditions upon which the request for a variance is
based are unique to the property for which the variance is sought and are not
applicable generally to other property;
c. Because of the particular physical surroundings, shape or
topographical conditions of the specific property involved, a particular
hardship to the owner would result, as distinguished from a mere inconvenience,
if the strict letter of these regulations are carried out;
d. The variances will not in any manner vary the provisions of
the Zoning Code.
2. Conditions: In approving variances, the Planning
Commission may require such conditions as will, in its judgment, secure
substantially the objectives of the standards or requirements of these
regulations.
3. Procedures: A petition for any variance shall be
submitted in writing by the subdivider at the time when the preliminary plat is
filed for consideration by the Planning Commission. Said petition shall state fully the grounds for the
application. Each request for a
variance shall be specifically applied for in the numerical order of the
subdivision regulations.
F. Relationship to Zoning Code and
other Regulations
1. No final plat of land within the force and effect of the
McMinnville Zoning Code shall be approved unless it conforms to such code.
2. Whenever there is a discrepancy between minimum standards or
dimensions noted herein and those contained in the zoning regulations, building
code, or other official regulations, the highest standard shall apply.
G. Separability
Should any section, subsection, paragraph or provision
of these regulations be held invalid or unenforceable by a court of competent
jurisdiction, such decision shall in no way affect the validity of any other
provision of these regulations, it being the intention of the McMinnville
Regional Planning Commission to adopt each and every provision of these regulations
separately.
H. Repeal of Previous Regulations
All subdivision regulations previously adopted by the
McMinnville Regional Planning Commission are hereby repealed as of the adoption
and effective date of these regulations.
I. Amendments
Before adoption of any amendments to this document, a
public hearing shall be held by the Planning Commission. Thirty (30) days
notice of the time and place of the hearing shall be given as provided in
Section 13-3-403, Tennessee Code Annotated.
ARTICLE II PROCEDURE FOR PLAT APPROVAL
The procedure for review and approval of a subdivision plat consists of
four (4) basic steps. (1) The initial
step is the pre-development conference with the Staff Planner for the
Planning Commission for advice and assistance.
(2) The second step is the preparation and submission to the Planning
Commission of a Preliminary Plat of the proposed subdivision. (3) The third step is to construct or
install improvements such as streets, fire hydrants and utility lines. (4) The fourth step is the preparation and
submission to the Planning Commission of a Final Plat, together with
required certificates. This Final Plat
becomes the instrument to be recorded in the office of the Warren County
Register of Deeds when duly signed by the secretary of the Planning Commission.
A. General
1. Any owner of land lying within the area of jurisdiction of
the Planning Commission who wishes to divide land into two (2) or more lots,
sites, or other divisions requiring any new street or utility construction, or
any division of less than five (5) acres for the purpose, whether immediate or
future, of sale or building development, or who wishes to resubdivide an
existing subdivision lot(s) for this purpose, shall submit a plan of such
proposed subdivision to the Planning Commission for approval and shall obtain
such approval prior to the filing of his subdivision plat for record and prior
to selling or giving a deed for any lot.
Any such plat of subdivision shall conform to the
minimum standards of design for the subdivision of land as set forth in Article
III of these standards and shall be presented in the manner specified in the
following sections of this Article. No plat of a subdivision of land within the
area of planning jurisdiction shall be filed or recorded by the Register of
Deeds without the approval of the Planning Commission as specified herein.
2. In order to secure review and approval by the Planning
Commission of a proposed subdivision, the prospective subdivider shall, prior
to the making of any street improvements or installations of utilities, meet
informally with the Staff Planner for a pre-development conference. The developer shall then submit to the
Planning Commission a preliminary plat, and other required information, as
provided in Sections D and E of this Article. On approval of said preliminary
plat, the developer may proceed with the construction of improvements as set
forth in Article III, and with the preparation of the final plat and other
documents required in connection therewith as specified in Sections F and G of
this Article. In no case shall a
preliminary plat be presented in sections.
3. Omission of Preliminary Plat
The preliminary plat may be omitted and only a final plat
submitted, IF ALL OF THE FOLLOWING CONDITIONS ARE MET:
a. The proposed subdivision does not contain more than five (5)
lots, sites, tracts, or divisions.
b. All public improvements as set forth in Article III are
already installed. (Any construction, installation, or improvement of public
improvements shall require the submission of a preliminary plat.) The Tennessee
Department of Environment and Conservation has approved the lots for septic
systems, if applicable.
c. The subdivider has consulted informally with the Staff
Planner for advice and assistance, and it is agreed upon by the Planning
Commission that a preliminary plat is unnecessary prior to submission of the
final plat and its formal application for approval.
4. The owner or his authorized representative must be present
at preliminary plat review and approval and final plat review and approval. In
his absence, the property owner may be represented by his agent or
representative who shall present written authorization.
5. No final subdivision plat shall be approved by the Planning
Commission or accepted for record by the Warren County Register of Deeds until
the required improvements listed shall be constructed in a satisfactory manner
and approved by the local approving agent.
In lieu of such prior construction, the Planning Commission may accept
certain forms of financial guarantees (See Section G-9 of this Article) in
amounts equal to the estimated cost of installation of the required
improvements, whereby improvements may be made and utilities installed without
cost to the City of McMinnville in the event of default by the subdivider.
B. Filing Fee
At the time of the submittal of a preliminary plat for
review, or final plat if a preliminary plat is not required, a nonrefundable
filing fee of one hundred dollars ($100.00) shall be paid to the City of
McMinnville. Said fee shall be used to
help defray the costs of plat review and inspections.
C. Plat Standards
1. State
Standards Shall Apply
All plats submitted to the McMinnville Regional Planning
Commission for consideration shall meet the accuracy standards for an Urban and
Subdivision Survey (Category 1) as established by the Tennessee Board of
Examiners for Land Surveyors (January, 1992 Revised). Said regulations state:
"For
Category 1 surveys in Tennessee, the angular error of closure shall not exceed
15 seconds times the square root of the number of angles turned. The linear error of closure shall not exceed
1 foot per 10,000 feet of perimeter of the lot of the land (1 : 10,000). When very small lots are encountered, the
allowable error shall not exceed 1/10 of a foot of positional accuracy per
corner."
All plats shall include a statement by the surveyor
regarding the methods used in making the survey and its relative accuracy, as
well as the surveyor's seal and signature.
2. Sheet Format
All preliminary and final plats submitted to the
McMinnville Regional Planning Commission for consideration shall be in a format
consistent with the example of the acceptable sheet format depicted on
Illustration 1 in Appendix A and shall:
a. Be generally drawn to a scale of not less than 1" =
100'. When more than one sheet is required, an index sheet of the same size
drawn at an easily read scale shall be filed showing the entire subdivision
with the sheets lettered in alphabetical order as a key.
b. Be either 18" x 24" or
24" x 36" in size.
c. Contain in the lower right-hand corner
a standard title block, (See Illustration 2 in Appendix A),
which includes:
(1) Name of subdivision
(2) Names, addresses, and phone numbers of
developer, surveyor, and engineer (if
applicable)
(3) Scale of drawing
(4) Acreage to be subdivided
(5) Number of lots to be created
(6) Appropriate reference(s) to the Warren County
Tax Maps
(7)
Date plat was prepared
d. Contain in the upper right-hand corner
a location map, a graphic scale and an approximate
north arrow.
D. Preliminary Plat Requirements
In
addition to being prepared to the prescribed format, each Preliminary Plat
shall contain the following information as may be appropriate:
1. The location of all existing and proposed property lines,
streets, water courses, railroads, sewer lines, water lines, drain pipes,
bridges, culverts, and easements for existing utilities (water, sewer, gas,
electricity, etc.) or other features.
Existing features shall be distinguished graphically from those which
are proposed.
2. The present zoning classification (if any) both of the land
to be subdivided and of adjoining lands, the names of adjoining property owners
or subdivisions, the name of the applicable water district, and the size of
existing water and sewer lines.
3. Plans, prepared by the developer's engineer, of proposed
sewer and water systems showing connections to the existing or any proposed
utility systems, including line sizes, location of hydrants and manholes. When
sewer connections are not accessible, as discussed in Article III, Section H,
any land on which an individual sewage disposal system is proposed must be
reviewed by the Tennessee Department of Environment and Conservation.
4. The proposed street names, and the location, width, and
other dimensions of proposed streets, alleys, easements, parks and other open
spaces, reservations, lot lines, and building setback lines.
5. Topographical contours at vertical intervals of not more
than five (5) feet.
6. Center line profiles for all proposed streets and, where
required by the City Administrator or Public Works Director, cross-sections of
proposed streets based on 50 foot stations.
7. Subsurface conditions on the tract, if required by the
Planning Commission: location and results of tests made to ascertain subsurface
soil, rock, and ground water conditions; depth of ground water unless test pits
are dry at a depth of five (5) feet; and location and results of soil
percolation tests, if individual sewage disposal systems are proposed.
8. If any portion of the land proposed for subdivision lies
within a floodable area, as determined by an official Flood Hazard Boundary Map
or Flood Insurance Rate Map, that portion shall be so indicated.
9. A drainage plan showing proposed modifications to the flow
of water across the site or to and from adjoining properties. The City Administrator or Public Works
Director may require the submission of more detailed information including, but
not limited to, a final grading plan for all or a portion of the site, and
calculations describing the existing and proposed volumes of water to be
discharged from the site.
E. Procedure
for Preliminary Plat Review
The
following procedure shall apply for the review of all Preliminary Plats:
1. At least 15 days prior to the meeting at which it is to be
considered, the subdivider shall submit to the McMinnville Office of Codes
Enforcement eight (8) copies of any required preliminary plat of a proposed
subdivision. If necessary the developer should provide copies to the Tennessee
Department of Environment and Conservation.
The Office of Codes Enforcement will give copies of the plat to the
Staff Planner for review and distribute copies to all applicable utilities and
departments (water, sewer, fire, telephone, street, electric, or gas, as
necessary).
2. The Staff Planner for the Planning Commission shall review
the preliminary plat for conformance with the specifications and standards of
these regulations.
3. The preliminary plat shall be presented by the developer or
his designated representative to the Planning Commission at its next meeting
for a review period not to exceed 30 days.
The developer should be
physically present at the meeting(s) to answer questions and hear suggestions
about his proposed development or be represented by an authorized agent as
discussed in Article II, Section A(4).
4. Within 30 days after submission of the preliminary plat to
the Planning Commission for consideration, the Planning Commission shall
approve or disapprove said plat. Failure of the Planning Commission to act on
the preliminary plat within the 30 day period will be deemed approval of this
plat. If a plat is disapproved, reasons for such disapproval shall be stated in
writing. If approved subject to modifications, the nature of the required
modifications shall be indicated.
5. If a plat has been disapproved, a new plat may be presented
as though no previous plat had been submitted. If a plat has been approved, or
approved subject to modifications, and the subdivider desires to make
substantial modifications other than those already required by the Planning
Commission, a new preliminary plat must be submitted, which is subject to the
same regulations and procedures as though no previous plat had been submitted,
except that a certification to the effect that the previous plat has been
withdrawn must be submitted. If the Tennessee Department of Environment and
Conservation rejects any lot(s) or recommends any alteration of lot size or
shape, the Planning Commission may require the plat to be resubmitted for
preliminary plat review.
6. Two (2) copies of the preliminary plat will be retained in
the Planning Commission files, copies shall be retained by the applicable
utility departments, and one copy shall be returned to the subdivider with any
notations at the time of approval or disapproval and the specific changes, if
any, required.
7. The approval of the preliminary plat by the Planning
Commission shall not constitute acceptance of any final plat.
8. The approval of the preliminary plat shall terminate unless
a final plat based thereon is submitted within one (1) year from the date of
such approval; provided, however, that an extension of time can be applied for
by the developer and granted by the Planning Commission. If no work has begun to install improvements
and if an approved final plat has not been financially guaranteed, and the
McMinnville Regional Subdivision Regulations have changed, the subdivision must
meet the new regulations.
F. Final Plat Requirements
1. The final plat shall conform substantially to the approved
preliminary plat. Any alterations or deviation from the preliminary plat should
be discussed with the Staff Planner to determine if the changes require new
preliminary plat review.
2. If the subdivision is to be developed in phases and the
final plats submitted as portions or sections of the preliminary plat, the
sections must be identified by alphabetical characters, following the name of
the subdivision as initially submitted or as approved on preliminary.
3. A final plat will not be acceptable for submission unless it
meets all required standards of design, and contains all required information,
or contains a written request for a variance for each specific deviation from
requirements.
4. In addition to being prepared in the prescribed format, each
Final Plat shall contain the following information as may be appropriate:
a. The right-of-way and pavement lines of all streets and
roads; the size and location of installed and/or preexisting water and sewer
mains; alley lines; hydrant locations; lot lines; building setback lines; any
easements for rights-of-way provided for public services, utilities and the
disposal of surface water; the limitation and/or dimensions of all easements;
lots numbered in numerical order; any areas to be dedicated to public use; and
any sites for other than residential use, with notes stating their purpose and
limitations.
b. A statement of the restrictions for all easements and
right-of-ways indicating the following:
(1) No permanent structure such as a deck, patio, garage, carport
or other building shall be erected within the limits of any easement shown on
this plat.
(2) No excavation, filling, landscaping or other construction
shall be permitted in any drainage easement shown on this plat if such
excavation, filling, landscaping or other construction will alter or diminish
the flow of water through said easement.
(3) All driveways, entrances, curb cuts or other points of ingress
or egress to the lots shown on this plat shall be in accordance with the rules
and regulations of the City of McMinnville; contact the Public Works Department
for information.
(4) The placing of pipe within or otherwise filling of ditches
within the right-of-way shown on this plat is prohibited without the approval
of the City of McMinnville; contact the Public Works Department for
information.
c. Sufficient data to determine readily and reproduce on the
ground the location, bearing and length of every street line, lot line,
boundary line, block line, and building line whether curved or straight, and
including true north point. This shall include the radius, central angle, and
tangent distance for the center line of curved streets and curved property
lines that are not the boundary of curved streets.
d. All dimensions to the nearest one-hundredth (100th) of a
foot and angles to the nearest 20 seconds.
e. Location and description of all bench marks, monuments and
corner markers.
f. The names and locations of adjoining subdivisions and
streets and the location and ownership of adjoining unsubdivided property.
g. If any portion of the land being subdivided is subject to
flooding or is in a FEMA identified flood hazard area, it shall be indicated on
the final plat.
h. If this is a resubdivision of a previously recorded
subdivision, provide plat book and page of last subdivision plat being amended.
i. Standard
plat certifications as may be appropriate to the context of the subdivision (See Article II, Section G (10) below).
G. Procedure
for Final Plat Review
The
following procedure shall apply for the review of all Final Plats:
1. Final plats should be submitted at least 15 days prior to
the Planning Commission meeting. If the developer has obtained the signatures
of utility and road officials because improvements have been completed or were
not required, he should provide those utilities with a copy of the plat, and
submit four (4) copies to the McMinnville Office of Codes Enforcement. The submission of the final plat to the
Office of Codes Enforcement shall not constitute submission of the final plat for
consideration by the Planning Commission.
2. The Staff Planner for the Planning Commission shall review
the final plat for conformance with the specifications and standards of these
regulations.
3. The official submission of the final plat to the Planning
Commission is considered to be the first Planning Commission meeting at which
the plat is presented for consideration, with the developer or his authorized
representative present to answer questions and provide information. The Planning Commission may review the plat
for a 30 day period.
4. The Planning Commission shall approve or disapprove the
final plat within 30 days after its submission for consideration. Failure of
the Planning Commission to act on the final plat within this 30 day period
shall be deemed approval of it. If the plat is disapproved, the grounds for
disapproval shall be stated upon the records of the Planning Commission.
5. When the plat has been approved by the Planning Commission,
the original will be returned to the subdivider with the approval of the
Planning Commission certified thereon, for filing with the county register of
deeds as the official plat of record; two (2) copies will be retained in the
records of the McMinnville Regional Planning Commission and one (1) copy will
be returned to the developer for his records.
6. Approval of the final plat by the Planning Commission shall
not constitute the acceptance by the public of the dedication of any streets or
other public way or ground.
7. The Planning Commission shall require that an accurate map
("as-built" drawings) of all water lines, valves, fire hydrants,
sewer lines and appurtenances be supplied by the developer to the City of
McMinnville as a condition for final approval of any plat. State law requires
that plans and specifications of all water and waste water facilities shall be
prepared by a registered engineer and approved by the Tennessee Department of
Environment and Conservation. A copy of
such plans shall be forwarded by the developer to the City of McMinnville.
8. Approval of the final plat can not be given until completion
and approval of the required improvements. These improvements are to be
installed in accordance with Article III. The required improvements must be
approved by the person(s) designated by City Administrator and/or a representative
of the appropriate utility or road department, and then be reported to the
Planning Commission. The required
improvements include:
a. Monuments
and iron pins
b. Storm
drainage system
c. Street
grading and paving
d. Sidewalks
(if required)
e. Water
supply system lines and laterals
f. Sewage
collection lines and laterals (if applicable)
g. Driveway
cuts with culverts (homes to be built by developer)
h. Fire
hydrants (if applicable)
i. Any
other improvements that may be required by the Planning Commission
9. Financial
Guarantees in Lieu of Improvements
a. Conditions may exist whereby a developer may be unable to
install all improvements before requesting final plat approval. In lieu of the
installation of all improvements, the Planning Commission may accept one of the
following forms of financial guarantees, whereby in the event of default by the
developer, improvements and utilities can be made without cost to the city:
(1) The establishment of cash in a bank escrow account in the full
amount of the estimated cost of required improvements plus 10% yearly inflation
factor.
(2) An Irrevocable Letter of Credit, issued by a Bank or Savings
and Loan, signed by two officers, to cover the full amount of the estimated
cost of improvements plus 10% yearly inflation factor.
(3) A certified check in the full amount of the estimated cost of
required improvements, plus 10% yearly inflation factor.
b. In determining the basic cost of improvements the Planning
Commission may use a formula using a base cost per linear foot for each
required improvement, that being a cost standard in the construction industry
that particular year. The Planning Commission may determine the base cost by
receiving information and/or bids from recognized contractors. If the developer
provides the bid or estimated cost of improvements, the Planning Commission
must determine that the contractor will guarantee the cost for at least the
term of the guarantee plus two months.
c. At the time of acceptance of a guarantee, the Planning Commission
shall specify the specific length of time before the city would take legal
steps to cash it, but this time cannot exceed two (2) years.
d. No financial guarantee shall be partially withdrawn by the
developer during the construction period to pay for development costs except in
the case of a final payment made after final inspection and approval by the
Planning Commission, or except in the case where a developer is postponing
binder surface paving on a street until after a winter settling period for the
completed and approved gravel base.
10. Certifications
(See Appendix B for Forms)
In all cases some or all of the following certificates
shall be present and signed on the original final plat before the Planning
Commission Secretary signs the plat for recording the plat at the Register of
Deeds' Office. The developer shall
check with the Staff Planner as to which certificates shall be depicted on the
final plat.
Form 1) Certificate of Ownership and Dedication-Certification
showing that applicant is the land owner and dedicates streets, rights-of-way,
and any sites for public use.
Form 2) Certificate of Accuracy & Precision-Certification
by surveyor of accuracy of survey and plat and placement of monuments.
Form 3A) Certificate of General Approval for
Installation of Subsurface Sewage Disposal Systems-This certification to be
used if any lots will use septic tanks, and must be signed by an appropriate
representative of the Tennessee Department of Environment and Conservation
before presentation to Planning Commission for final approval.
Form 3B) Certificate of Approval of Sewage
Collection Facilities-This certification is to be used for any lots
connected to or proposed to be connected to McMinnville sewer system. Part (1)
pertains to sewer facilities installed, whereas Part (2) pertains to acceptance
of a financial guarantee in lieu of improvements.
Form 4A) Certificate of Approval of Water Lines-This
certification is to be used for any lots where new water lines or hydrants have
been (or will be) installed. Part (1) pertains to water facilities installed
whereas Part (2) pertains to acceptance of a financial guarantee in lieu of
improvements. This would be signed by an official of the applicable water
service district.
Form 4B) Certification of Existing Water Lines
and/or other Utilities-This certification is to be used for any lots served
by and connected to previously existing water and/or sewer lines. This would be
signed by an official of the applicable utility.
Form 5A) Certificate of Streets and Drainage System-This
certification is to be used for any lots served by new streets, drainage
system, etc., recently installed or to be installed, in conformance to Planning
Commission regulations, with signature by applicable official.
Form 5B) Certificate of Existing Street(s)-This
certification is to be used for a subdivision which does not involve new street
construction but which fronts on an existing street. That street may not meet
Planning Commission requirements.
Form 6) Certificate of Approval for Recording-Certification
by Planning Commission Secretary that plat has been approved by the commission.
In all cases this certification will be signed only after all other
certificates have been signed and after final approval has been granted by the
Planning Commission.
H. Inspections
Procedures
1. The developer shall notify the City Administrator, Public
Works Director and/or County Road Superintendent and the McMinnville
Water/Waste Water Department and/or Utility District Manager when work on
streets and/or utilities is to begin and the anticipated schedule for the
preparation of subgrade and road base, installation of drainage and underground
utilities, and binder surfacing of the road. Since the inspections need to be
made periodically during the entire process, communication with the City
Administrator, Public Works Director and/or County Road Superintendent and the
McMinnville Water/Waste Water Department and/or Utility District Manager are
essential to make the process move as smooth as possible.
2. The developer shall notify the City Administrator, Public
Works Director and/or County Road Superintendent and the McMinnville
Water/Waste Water Department and/or Utility District Manager at least 24 hours
in advance of the needed inspection on:
a. Street grading, preparation of subgrade, and installation of
the drainage system.
b. Installation and pressure testing of water mains, water
stubs, sewer lines, and any other underground utility lines.
c. Pavement base. Inspection includes checking thickness of
gravel every 500 feet at random points across width.
d. Prime
coat, binder course and drainage system.
3. Throughout the construction period, the City Administrator,
Public Works Director and/or County Road Superintendent and the McMinnville
Water/Waste Water Department and/or Utility District Manager will keep a log of
findings and periodically report the status to the Planning Commission Staff
Planner. Problems should be brought to the attention of the Planning Commission
immediately.
4. Upon completion of steps a-d listed above, the inspector(s)
will submit a written report to the Planning Commission. These inspection
reports will become part of the official records of the Planning Commission.
5. If a guarantee is posted by the developer in lieu of
required improvements, funds shall not be released until all roads and
utilities meet all required standards and the Planning Commission has received
written reports to that effect.
6. No improvements will be accepted by the City of McMinnville
that have not been inspected and deemed acceptable by the appropriate
representatives of the City.
I. Warranty of Improvements
1. In addition to the Financial Guarantee in Lieu of
Improvements, as well as in the case of the completion of required improvements,
the developer shall warranty improvements made under the provisions of these
regulations for a period of one (1) year from the date of acceptance by the
City of McMinnville.
2. The Warranty of Improvements shall consist of an escrow
account, letter of credit, or certified check.
3. The amount of the warranty shall be not less than
twenty-five percent (25%) of the cost of the improvements installed under these
regulations nor more than $5,000.
4. The Warranty of Improvements shall be submitted to the City
of McMinnville prior to the submittal of the subdivision plat for final
approval.
J. Recording of Final Plat
Upon approval of the final plat and the signing of the
appropriate certificates affixed thereto, it shall be the responsibility of the
developer to ensure that said plat is placed upon the records of the Register
of Deeds' Office of Warren County, Tennessee.
K. Grounds for Denying Plat Approval
The McMinnville Regional Planning Commission shall
deny approval of any plat submitted to it for review that does not meet or
exceed the minimum requirements set forth in these regulations. In addition, the Planning Commission may
deny approval of a plat for the subdivision of land for which:
1. The available water supply is inadequate to serve the
anticipated development or the available water supply is inadequate to provide
fire protection;
2. The means of ingress and egress is inadequate to carry the
vehicular traffic projected to be generated by the proposed subdivision or the
means of ingress and egress is inadequate for
use by garbage trucks, fire trucks or other city-owned equipment; or
3. The approval of said plat will in the opinion of the
Planning Commission be detrimental to the health and safety of the public.
ARTICLE III DESIGN
AND SPECIFICATIONS
A perfectly prepared and recorded subdivision or plat means little to a
prospective lot buyer until he can see actual physical transformation of raw
acreage into lots suitable for building purposes and human habitation.
Improvements by the subdivider spare the community a potential tax liability.
A. Suitability of the Land
1. Land
Physically Unsuitable for Subdivision
a. Land where flooding, bad drainage, steep slopes, rock
formations, and other such features which may endanger health, life, or
property, aggravate erosion, increase public funds for supply and maintenance
of services, and
b. Land which other public agencies have investigated and found
in the best interest of the public not suitable for the type of platting and development
proposed shall not be approved for subdivision unless adequate methods are
formulated by the developer for meeting the problems created by subdivision of
such land. Such land within any plat shall be set aside for such uses as shall
not produce unsatisfactory living conditions.
2. Land
Unsuitably Located for Subdivision
a. The Planning Commission shall not approve what it considers
to be scattered or premature subdivision of land which would endanger health,
safety, or property because of lack of or adverse effect on water supply,
schools, proper drainage, good transportation, or other public services or
which would necessitate an excessive expenditure of public funds for the supply
or maintenance of such services.
b. Land unsuitable for subdividing is also that located in
close proximity to potentially hazardous commercial operations which may
endanger health, life, or property of the residents of the proposed
subdivision.
B. Special Requirements for Floodable
Areas
1. The purpose of this section is for the review of subdivision
proposals to determine whether such proposals will be reasonably safe from
flooding. In order to accomplish this, the following regulations shall apply:
2. Definition
of Land Subject to Flooding
a. For the purpose of these regulations, land subject to
flooding shall be defined as those areas within the McMinnville Planning Region
shown as Special Flood Hazard Areas (Zone A, AE or X) on the Flood Insurance
Rate Maps for Warren County dated March 16, 1988, or any subsequent amendment
or revision to said maps.
b. In addition, along all other streams and water courses not
shown as floodable by the Flood Hazard Boundary Maps or Flood Insurance Rate
Maps, all land within 30 feet of the top of the bank is considered to be subject
to flooding.
3. Regulations
for Subdivisions Containing Land Subject to Flooding
a. All subdivision proposals shall be consistent with the need
to minimize flood damage.
b. All creeks, lakes, ponds, sinkholes or other drainage areas
shall be shown on the preliminary and final subdivision plat.
c. Every lot platted shall have a flood-free building site.
d. All subdivision proposals shall have public utilities and
facilities, such as sewer, gas, electrical and water systems located and
constructed to minimize or eliminate flood damage.
e. All subdivision proposals shall have adequate drainage
provided to reduce exposure to flood hazards.
f. Base flood elevation data shall be provided for all
subdivision proposals containing land subject to flooding.
g. Utilities
(1) All new and replacement water supply systems shall be designed
to minimize or eliminate infiltration of flood waters into the system.
(2) New and replacement sanitary sewage systems shall be designed
to minimize or eliminate infiltration.
(3) If on-site waste disposal septic systems are to be used, a
flood-free site shall be provided on each lot in order to avoid impairment to
them or contamination from them during flooding.
h. Fill
(1) Land subject to flooding may be platted for residential use
only if filled to such a height as will secure a flood-free site based on data
submitted by the subdivider and prepared by registered professional engineers,
provided such use of fill does not endanger health, life, or property or
restrict the flow of water or increase flood heights. Lots on fill will not usually be approved for septic tank drain
fields. In order to be considered for development such lots must be served
by a public sewer system.
(2) No fill shall be placed in the floodway of the stream and if
undetermined no closer than 30 feet from the top of the bank of any stream or
water course unless the subdivider demonstrates that a lesser distance (but not
less than 15 feet) is adequate based on watershed area, the probable runoff, and
other topographic and hydraulic data prepared by engineers.
(3) All bridges, culverts, and other drainage openings shall be
designed so as not to restrict the flow of water and unduly increase flood
heights upstream.
C. Monuments
1. Concrete monuments or other markers approved by the Planning
Commission four (4) inches in diameter square, three (3) feet long, with a flat
top, shall be set at points where the street lines intersect the exterior
boundaries of the subdivision. The top of the monument shall have a metal plate
with an indented cross to identify properly the location and shall be set flush
with the finished grade.
2. All other lot corners shall be marked with iron pins or pipe
not less than three-fourth (3/4) inches in diameter and 24 inches long and
driven so as to be flush with the finished grade.
D. Streets - Design Standards
The following standards shall apply for the design of
all streets in subdivisions located in the McMinnville Planning Region.
1. General
Standards of Design
a. Arrangement
The arrangement of streets in the subdivision shall
provide for the continuation of principal streets of adjoining subdivision, and
for proper projection of principal streets into adjoining properties which are
not yet subdivided, in order to make possible necessary fire protection,
movement of traffic and the construction or extension, presently or when later
required, of needed utilities and public services such as sewers, water and
drainage facilities. Local streets shall be so laid out that their use by
through traffic will be discouraged. Where, in the opinion of the Planning
Commission, topographic or other conditions make such continuance undesirable
or impracticable, the above conditions may be modified. The curvi-linear street
layout will be encouraged by the Planning Commission.
b. Conformity
to the Major Road Plan
The location and width of all streets and roads shall
conform to the official Major Road Plan.
The latest Major Road Plan Map is on file in the Office of the Warren
County Register of Deeds and a copy of said plan is included in the front of
this document
Where a street designated by the Major Road Plan as a
"Proposed Road" crosses the proposed site of subdivision,
right-of-way sufficient to meet the design standards for the functional
classification of said street shall be dedicated to the public and shown on
said plat.
c. Relation
to Adjoining Street System
The proposed street system shall extend any adjoining
existing streets at the same or greater width, but in no case less than the
required minimum width.
d. Relation
to Topography
The street plan of a proposed subdivision shall bear a
logical relationship to the topography of the property, and all streets shall
be arranged so as to obtain as many of the building sites as possible at or
above the grade of the streets. Grades of streets shall conform as closely as
practicable to the original topography.
e. Flood
Prevention
Streets which will be subject to inundation or
flooding shall not be approved. All streets must be located at elevations which
will make them flood-free in order that portions of the subdivision will not be
isolated by floods. Where flood conditions are anticipated, profiles and
elevations of streets will be required in order to determine the advisability
of permitting the proposed street layout.
2. Minimum
Street Right-of-Way Widths
The minimum width of the street right-of-way, measured
from lot line to lot line, shall be as shown on the Major Road Plan, or if not
shown on such plan, shall be not less than as listed below.
a. Local Streets................................................ 50 feet
b. Local Streets with curbs & gutters............. 40 feet
c. Cul-de-sacs (diameter)............................... 120 feet
d. Collector Streets.......................................... 60
feet
e. Arterial Streets and Highways.................... 80-150 feet
3. Minimum
Street Surfacing Widths
The minimum street surfacing widths shall be as
follows:
a. Local Streets................................................ 24 feet
b. Local Streets with curbs & gutters............. 20 feet
c. Cul-de-sacs (diameter)............................... 100 feet
d. Collector Streets
Minor........................................................... 28
feet
Major........................................................... 32
feet
e. Arterial Streets and Highways.................... 48 feet
Due to the diversity of the development in the
planning region, ranging from sparsely populated agricultural areas to densely
populated urban areas; required surfacing widths may necessarily vary with the
character of building development, the amount of traffic encountered, and the
need to provide space for on-street parking.
In general, streets through proposed business areas
shall be considered either collector streets or arterial streets and the street
widths of streets so located shall be increased six (6) feet on each side if
needed to provide parking without interference to normal passing traffic.
4. Additional
Right-of-Way on Existing Streets
Plats for subdivisions that abut existing streets
shall show the dedication of additional right-of-way to meet the minimum
right-of-way width requirements.
a. The entire right-of-way shall be provided where any part of
the subdivision is on both sides of the existing street.
b. When the subdivision is located on only one side of an
existing street, one-half (1/2) of the required right-of-way, measured from the
center line of the existing roadway, shall be provided.
5. Substandard Existing Streets
The subdivision of property abutting existing streets
that do not meet the minimum construction standards of these regulations shall
generally be prohibited. Should
improvements to the existing street be required in order to meet the demands of
the proposed subdivision, the cost of said improvements shall be borne by the
developer unless determined otherwise by the City of McMinnville.
6. Street
Grades
a. Grades on major streets shall not exceed seven (7) percent;
grades on other streets shall not exceed 12 percent. No more than three (3)
percent grade within 100 feet of any intersection with a collector or arterial
street will be allowed and no more than 50 feet of any intersection with a
minor residential or rural street.
b. Upon preliminary plat approval, if the street grade appears
questionable, a street grade profile map may be required for the questionable
area before approval of final plat.
c. Every change in grade shall be connected by a vertical curve
constructed so as to afford a minimum sight distance of 200 feet, said sight
distance being measured from the driver's eyes, which are assumed to be four
and one-half (4 1/2) feet above the pavement surface.
d. Profiles of all streets showing natural and finished grades
drawn to a scale of not less than one (1) inch equals 100 feet horizontal, and
one (1) inch equals 20 feet vertical, may be required by the Planning
Commission.
7. Curves
a. Horizontal
Curves
Where a deflection angle of more than ten (10) degrees
in the alignment of a street occurs, a curve of reasonably long radius shall be
introduced. On streets 60 feet or more in width, the center line radius of
curvature shall be not less than 300 feet; on other streets it shall be not
less than 100 feet.
b. Tangents
A tangent of at least 100 feet in length shall be
introduced between reverse curves on all streets.
c. Curve radii at street intersections shall not be less than
20 feet (See Illustration 3 in Appendix A) and where the angle of street
intersection is less than 75 degrees the Planning Commission may require a
greater curb radius. To permit the
construction of a curb having a desirable radius without curtailing the
sidewalk at a street corner to less than normal width, the property line at
such street corner shall be rounded or otherwise set back sufficiently to
permit such construction.
8. Intersections
a. Street intersections shall be as nearly at right angles as
is possible and no intersection shall be at the angle of less than 60
degrees. (See Illustration 4 in
Appendix A).
No street intersection shall have more than four
streets entering it, and the "T" or three-way intersection shall be
used whenever possible. Additional
street right-of-way on local streets may be required at intersections with
collector or arterial streets to permit proper intersection design for traffic
flow.
Local streets intersecting with collector roads shall,
in general, be at least 500 feet apart and at least 1000 feet apart when
opening into an arterial street. Local
streets intersecting with other local streets shall, in general, be at least
200 feet apart.
b. Street Jogs
Street jogs with centerline off-sets of less than 150
feet shall not be allowed if the proposed street is to connect with or is an
arterial or collector street. Street jogs on local streets with centerline
off-sets of less than 125 feet shall not be allowed. (See Illustration 5 in Appendix A).
c. Visibility
of Intersections; Steep Grades and Curves
A combination of steep grades and curves shall be
avoided. In order to provide visibility for traffic safety, that portion of any
corner lot (whether at an intersection entirely within the subdivision or of a
new street with an existing street) shall be leveled and cleared of brush
(except isolated trees) and obstructions above the level three feet higher than
the centerline of the street. If directed, the ground shall be excavated to
achieve visibility.
9. Dead-End
Streets (Cul-de-sacs)
a. Permanent
Minor terminal streets or courts designed to have one
(1) end permanently closed shall be no more than 1200 feet long unless
necessitated by topography. They shall be provided at the closed end with a
circular turnaround having an outside pavement diameter of at least 100 feet
and a street right-of-way diameter of at least 120 feet. The circular turnaround may be centered on
the main body of the street or off-set to either side. When approved by the Planning Commission,
alternate designs, including a "T" or "hammer head"
configuration, may be used in lieu of the circular cul-de-sac. (See Illustration 6 in Appendix A).
b. Temporary
Where, in the opinion of the Planning Commission, it
is desirable to provide for street access to adjoining property, proposed
streets shall be extended by dedication to the boundary of such property. Such
dead-end streets shall be provided with a temporary paved turnaround having a
roadway surface diameter of at least 100 feet.
10. Private
Streets or Permanent Vehicular Easements
a. The Planning Commission discourages the platting of private
streets or permanent vehicular easements as every subdivided property should be
served from a publicly dedicated street.
b. Private streets and permanent vehicular easements shall be
developed to meet all standards required for municipal streets as provided in
these regulations. These include, but
are not limited to, all requirements for street right-of-way widths, minimum
surfacing widths, street grades, curves, intersections, street names, and
street construction procedures and specifications.
11. Reserve
Strips
There shall be no reserve strips controlling access to
streets, except where the control of such strips is definitely placed with the
municipality under conditions approved by the Planning Commission.
12. Special
Treatment Along Major Arterial Streets
When a subdivision abuts or contains an existing or
proposed major arterial street, the commission may require either marginal
access streets, reverse frontage with screen planting contained in a non-access
reservation along the rear property line, lots with rear service alleys, or
such other treatment as may be necessary for adequate protection of residential
properties and to afford separation of through and local traffic.
13. Sidewalks
(Optional)
For the safety of pedestrians and of children going to
school, installations of sidewalks on one side or both sides of the street may
be required on certain collector and arterial streets, in the vicinity of
schools, and in other locations where the Planning Commission considers
sidewalks to be needed.
Sidewalks shall be located in the street right-of-way
not less than one foot from the property line to prevent interference or
encroachment by fencing, walls, hedges, or other planting or structures placed
on the property line at a later date.
In a single family residential area concrete sidewalks
shall be five (5) feet wide and four (4) inches thick. In multi-family or group
housing developments sidewalks shall be five (5) feet wide and four (4) inches
thick. In commercial areas sidewalks shall be ten (10) feet wide and four (4)
inches thick.
14. Streets
in Commercial Subdivision Developments
a. Service
Streets or Loading Space in Commercial Developments
Paved rear service streets or alleys of not less than
30 feet in right-of-way width, or adequate off-street loading space with a
suitable paved surface shall be provided in connection with lots designed for
commercial use. Service streets,
alleys, and off-street loading spaces shall generally not be dedicated to, nor
accepted by the City of McMinnville.
b. Free Flow of Vehicular Traffic Abutting Commercial
Developments
In front of areas designed for commercial use, the
street's width shall be increased by such amount on each side as may be deemed
necessary by the Planning Commission to assure the free flow of through traffic
without interference by parked or parking vehicles, and to provide adequate and
safe parking space for such commercial or business district.
15. Street
Names
a. Proposed streets, which are obviously in alignment with
others already existing and named, shall bear the name of existing streets.
b. New street names shall be substantially different so as not
to be confused in sound or spelling with present street names as shown on the
McMinnville or Warren County Official Street/Road Name Maps. The only exception
to this policy is where a proposed street is an extension of (or is in alignment
with) an existing street. Generally, no street should change direction by more
than 90 degrees without a change in street name.
c. The developer is required to erect street name signs in
subdivisions within The City of McMinnville and its planning region. These add
value to land subdivision and enable strangers, delivery concerns, emergency
vehicles, and even potential buyers to find their way around. The subdivider
should consult with the McMinnville Public Works Director or Warren County Road
Supervisor for installation standards.
16. Warning
and Regulatory Signs
The developer is required to install warning and
regulatory signs at appropriate locations in the subdivision (stop signs,
etc.). The Public Works Director or
Warren County Road Supervisor should be consulted for proper location and
installation standards.
E. Streets
- Construction Procedures and
Specifications
The following procedures and specifications shall
apply for the construction of all streets in subdivisions located in McMinnville
Planning Region.
1. Street
Construction Cross-Sections
a. The
minimum street construction cross-section for each functional classification of
a street shall be as follows:
Collector
Cross-Section Local* Minor Major
Right-of
Way 50' 60' 60'
Subgrade
Width 30’ 40’ 44’ (amended 12/9/97)
Base Width 26' 32' 36'
Base
Thickness 06" 06" 06"
Binder
Width 24' 28' 32'
Surface
Width 24' 28' 32'
Binder
Thickness 02" 02" 02"
Surface
Thickness 01" 01" 02"
* When curbs and gutters are installed on local
streets the street right-of-way width may be reduced to 40 feet and the street
base, binder and surface widths may be reduced to 20 feet. Similar width reductions may be permitted
for collector streets when curbs and gutters are installed.
b. Accepted right-of-way, base and surface width cross-sections
for the various street classifications are depicted in Illustrations 7 and 8 in
Appendix A.
c. Accepted base, binder and surface thickness cross-sections
for the various street classifications are depicted in Illustrations 9 and 10
in Appendix A.
2. Subgrade
Preparation
a. Before grading is started, the areas within the limits of
construction shall be cleared of all objectionable matter, such as trees,
stumps, roots, weeds, heavy vegetation, etc.
Top soil shall be removed and stockpiled for later use as a topping-out
material for seeding and sodding.
b. If rock is encountered, it shall be removed or scarified to
provide adequate roadway drainage.
c. The subgrade shall be constructed according to Section 207
of the Tennessee Department of Transportation's "Standard Specifications
for Road and Bridge Construction" 1981 edition. Cut and fill slopes shall not exceed a grade of 2:1.
d. After grading is completed, and before any base is applied,
all of the underground work (water and sewer lines, any other utilities,
service connections, and drainage culverts) shall be installed completely
throughout the length and width of the road.
e. Where the subgrade is cut for the installation of
underground utilities, the trench shall be backfilled with crushed stone 1 1/2
inches and down in size with fines and the utilities shall be properly bedded
in suitable material, depending on subgrade.
The backfill shall be thoroughly compacted in layers not to exceed eight
(8) inches in thickness, by hand, or by pneumatic tamping equipment. Backfills shall be compacted to a density
not less than that of the original compacted fill.
f. The finished subgrade shall provide for the superelevation
and crown of the roadway.
3. Street
Drainage
a. An adequate drainage system, including necessary open
ditches, pipes, culverts, intersectional drains, drop inlets, bridges, etc.,
shall be provided for the proper drainage of all surface water.
b. All streetside ditches shall be built to a grade that will
provide good drainage. The maximum side
slope permitted on ditches is 3:1. The
minimum bottom grade on ditches shall be one (1) percent. All drainage ditches shall be stabilized to
prevent erosion.
c. Cross drains shall be provided to accommodate all natural
water flow, and shall be of sufficient length to permit full width roadway and
the required slopes.
d. All cross drains that are to be laid under the roadway shall
be of concrete construction.
e. The size openings to be provided shall be determined by the
Rational Formula, but in no case shall the pipe be less than 18 inches.
f. Cross drains shall be built on straight line and grade, and
shall be laid on a firm base but not on rock.
g. Pipes shall be laid with the spigot end pointing in the
direction of the flow and with the ends fitted and matched to provide tight
joints and a smooth uniform invert.
h. Head walls shall be provided at each end of all cross
drains.
i. All drain pipes and culverts shall be placed at a
sufficient depth below the roadbed to avoid dangerous pressure of impact, and
in no case shall the top of the pipe be less than one (1) foot below the
roadbed.
j. The drainage system should be designed based on a storm
frequency of 10 years. However, if the
10 year design flow is greater than 100 cubic feet per second, the system shall
be capable of accommodating the 100-year design flow within the drainage
easement.
k. In those cases where the drainage system relies on sinkholes
for discharge, it should be capable of accepting the 100-year design flow
within the dedicated easement.
l. The drainage conduits shall maintain a minimum velocity of
2 1/2 feet per second at full flow but shall not exceed 20 feet per second.
4. Pavement
Base Preparation
a. After preparation of the subgrade, the roadbed shall be
surfaced with crushed rock, stone or gravel.
b. The
size of the crushed rock or stone shall be that generally known as
"crusher run stone" from two and one-half (2 1/2) inches down including
dust.
c. Spreading of the stone shall be done uniformly over the area
to be covered by means of appropriate spreading devices and shall not be dumped
in piles.
d. After
spreading, the stone shall be rolled until thoroughly compacted. The compacted
thickness of the stone roadway shall be no less than six (6) inches for local
and collector streets and eight (8) inches for industrial streets. Inspection
should be made every 500 feet at random points across road.
e. Construction shall be as specified in Section 303 of the
Tennessee Department of Transportation's "Standard Specifications for Road
and Bridge Construction", 1981 edition.
5. Prime
Coat
a. The base, prepared as outlined above, shall be sprinkled
lightly with water to settle any loose dust.
b. A bituminous prime coat shall then be applied uniformly over
the surface to the base by the use of an approved bituminous distributor.
c. This prime coat shall be applied at the rate of three-tenths
(3/10) gallon per square yard, using the bituminous materials specified in
Section 402 of the Tennessee Department of Transportation's "Standard
Specifications for Road and Bridge Construction" 1981 edition.
d. Maintenance and protection of the prime coat shall be as
specified in Section 402 of the Tennessee Department of Transportation's
"Standard Specifications for Road and Bridge Construction" 1981
edition.
6. Foundation/Binder
Course
a. Upon completion of the prime coat, a foundation/binder
course shall be applied. The
foundation/binder course shall be composed of a hot mixture of aggregate and
asphalt (hot mix) which shall be no lesser than Grade B-M as specified in
Section 307 of the Tennessee Department of Transportation's "Standard
Specifications for Road and Bridge Construction" 1981 edition.
b. Materials, construction equipment and construction
procedures shall be as specified in Section 411 of the Tennessee Department of
Transportation's "Standard Specifications for Road and Bridge
Construction" 1981 edition.
c. The compacted thickness of the foundation/binder course
shall be no less than two (2) inches.
7. Final Pavement/Wearing Surface
a. Upon completion of the foundation/binder course, a final
pavement/wearing surface shall be applied.
The final pavement/wearing surface shall consist of an asphaltic
concrete pavement (hot Mix) composed of a mixture no less than Grade E as
specified in Section 411 of the Tennessee Department of Transportation’s
“Standard Specifications for Road and Bridge construction” 1981 edition.
b. Materials, construction equipment and construction
procedures shall be as specified in Section 411 of the Tennessee Department of
Transportation’s “Standard Specifications for Road and Bridge Construction”
1981 edition.
c. The compacted thickness of the final pavement/wearing
surface shall be no less one (1) inch.
.
8. Curb
and Gutter (Optional)
a. Should the developer choose to install curbing and/or curb
and gutter, side drains (along with necessary curb inlets and/or catchbasins)
shall be installed as directed by the Public Works Department.
b. When curb and gutter are installed the street right-of-way
may be reduced to 40 feet and the street pavement base, binder course and
wearing surface widths may be reduced to 20 feet. The street right-of-way, base, binder and surface widths shall
not be reduced when curbing only is installed.
c. Materials, equipment, and construction requirements shall be
as specified in Section 702 of the Tennessee Department of Transportation's
"Standard Specifications for Road and Bridge Construction" 1981
edition.
d. Illustration 11 in Appendix A depicts the accepted form of
curb and gutter.
9. Road
Bank Seeding and Erosion Control
a. Areas disturbed by cut or fill along roadways shall be
shaped and seeded with permanent vegetation. This work should be accomplished
in conjunction with roadway construction in order to reduce erosion and prevent
the siltation and clogging of culverts and drainage ways.
b. In areas with slopes over three percent (3%) grade excluding
rock conditions, sodding of drainage ways, concrete waterways and/or ditch
checks may be required.
10. Inspections,
Testing, and Material Certifications
a. All street and road construction shall be inspected by
representatives of the City of McMinnville and/or Warren County. Prior to the start of construction, the
developer or his representative shall contact the Public Works Department in
order to develop an inspection schedule.
b. The Public Works Department may request that the developer
provide compaction tests prepared by an independent testing laboratory.
c. Written approval must be made by the inspector at each stage
prior to proceeding. See Article II, Section H for additional information on Inspections Procedures.
d. The contractor(s) and/or supplier(s) furnishing base
material, prime coat, binder surface, and/or pavement surface shall furnish to
the Public Works Department written certification that the materials used in
the construction of streets developed under these regulations meet or exceed the
appropriate specifications.
F. Utilities - General Standards
The following general standards shall apply for the
construction of utilities in or for subdivisions located in the McMinnville
Planning Region:
1. Easements
The Planning Commission may require easements, not
less than 12 feet and not more than 20 feet in width for poles, wires,
conduits, gas, and heat mains, or other utility lines, along all rear lot
lines, along side lot lines if necessary or if, in the opinion of the Planning
Commission, advisable. All easements for water, storm and sanitary sewers shall
be 20 feet in width. Easements of the
same or greater width may be required along lot lines, where necessary for the
extension of existing or planned utilities.
All easements intended for the location of utilities
shall be shown on the final plat of a proposed subdivision and shall be noted
on said plat as a "Utility Easement".
2. Installation
After road grading is completed and approved and
before any gravel or surfacing is applied, all of the underground work [water
mains, sewer lines, and other underground utilities (where applicable), and all
service connections] shall be installed completely and approved throughout the
length of the road and across the flat section.
G. Water Distribution System
The following standards and specifications shall apply
for the design and installation of water distribution systems in or for
subdivisions located in the McMinnville Planning Region:
1. General Standards of Design
In general, the water systems designed in or for
subdivisions located in the McMinnville Planning Region shall conform to the Rules
of the Tennessee Department of Environment and Conservation - Division of Water
Quality Supply, Chapter 1200-5-7, Minimum Design Criteria for Public Water
Systems.
2. Accessibility
a. The provision of a public water supply is deemed by the
Planning Commission to be essential to the public welfare in developments where
homes will be in close proximity to each other.
b. When a proposed subdivision is not directly adjacent to an
area served by a public water supply system, or should improvements to the
source of water supply be required in order to meet the demands of the proposed
subdivision, the cost of said improvements shall be borne by the developer
unless determined otherwise by the City of McMinnville.
c. Lands without accessibility to public water supply systems
or developments not capable of the provision of an adequate supply of water
through an approved system of production, storage, and distribution, capable of
providing adequate flow for domestic use and fire protection shall be deemed
unsuitable for development as a subdivision until such time as this system can
be provided.
3. Construction Standards
a. Water mains properly connected with McMinnville's water
supply system or to the applicable water utility district system shall be
constructed in such a manner as to serve all lots shown on the subdivision plat
for both domestic use and fire protection.
b. Materials and construction procedures for water mains and
connections shall be in accordance with basic requirements of the City of
McMinnville or the applicable water utility district.
4. Minimum Pipe Sizes
Mains of a minimum six (6) inches in diameter shall be
installed throughout the subdivision and shall connect to existing water mains;
except along cross streets of 1000 feet or less and in the last 500 feet of
permanent cul-de-sacs, where no less than two (2) inch mains may be installed.
Every attempt shall be made to establish a gridiron layout, preferably
"looped", with a minimum of dead-end lines. All lines shall meet the
specifications of the McMinnville Water Department or applicable water utility
district.
5. Service Connections
a. Connections to the water system shall be installed for every
lot in a subdivision so that future connections will not require digging up or
tunneling under streets or interruption to service to other connections on the
system.
b. Connections to every lot shall include a three-fourths (3/4)
inch copper service line extending at least ten (10) feet onto the property
line with a Ford KV-2 backflow device meter yoke within a meter box as approved
by the McMinnville Water Department or applicable water utility district.
6. Fire
Protection
a. If, as determined by the Fire Chief for the City of
McMinnville, fire protection can be provided at the time of platting, then fire
hydrants shall be spaced not more than 1000 feet apart as measured along a
street in residential areas and no more than 600 feet apart as measured along a
street in commercial areas. They shall be so located that they will be
accessible, protected from traffic hazards, and will not obstruct walks,
roadways, or parking facilities.
b. A minimum fire flow requirement of 500 gallons per minute
and 20 pounds per square inch residual pressure must be available in all
distribution systems. More stringent
standards may be required by the McMinnville Fire Department, the Insurance
Services Office or other related agency.
c. All fire hydrants shall be Mueller traffic model type-5 1/4
inch barrel with one (1) 4 1/2 inch outlet and two (2) 2 1/2 inch outlets. The type and location of all fire hydrants
shall be approved by the appropriate water department and the Fire Chief for
the City of McMinnville.
d. There shall be a valve in the lateral between the street
main and fire hydrant.
7. Inspections,
Testing and Material Certifications
a. All water system construction is to be inspected by
representatives of the City of McMinnville.
Prior to the start of construction, the developer or his representative
shall contact the McMinnville Water/Waste Water Department in order to develop
an inspection schedule.
b. As a minimum, all water systems shall be subjected to
pressure and leakage testing. Pressure
tests shall be performed at a pressure of fifty percent (50%) above the working
pressure at the test point and shall be maintained for two (2) hours. The leakage test shall be conducted
concurrently with pressure test. The
McMinnville Water/Waste Water Department may require other testing, including
compaction tests prepared by an independent testing laboratory for back-filled
utility trenches.
c. The contractor(s) and/or suppliers(s) furnishing pipe,
valves, fire hydrants and other appurtenances shall furnish to the City of
McMinnville written certification that the materials used in the construction
of water systems meet or exceed the appropriate specifications.
8. As-Built Drawings
Prior to the acceptance of all water distribution systems
shown on all plats presented to the McMinnville Regional Planning Commission
and prior to the release of any financial guarantee as required by these
regulations, the developer shall submit to the McMinnville Water/Waste Water
Department a complete set of "as-built" drawings for said system.
H. Waste
Water Systems
The following standards and specifications shall apply
for the design and installation of waste water systems in or for subdivisions
located in the McMinnville Planning Region:
1. General Standards of Design
In general, the waste water systems designed in or for
subdivisions located in the McMinnville Planning Region shall conform to the Rules
of the Tennessee Department of Environment and Conservation - Division of Water
Pollution Control, Chapter 2, Design of Waste Water Collection Lines and
Pumping Stations.
2. Accessibility
When a proposed subdivision is not directly adjacent
to an existing public sewer system, the Planning Commission shall determine the
accessibility of the nearest system and determine whether the subdivider must
make connections. The Planning Commission may seek the advice of other
government officials, and/or qualified consultants prior to making this
determination.
3. Design Period
In general, sanitary sewerage systems shall be
designed for the estimated ultimate development of the proposed subdivision and
the potential future development of adjoining land.
4. Minimum Size and Construction Standards
The sanitary sewer lines shall be at least eight (8)
inches in size and in accordance with the instructions and specifications of
the McMinnville Water/Waste Water Department and the Tennessee Department of
Environment and Conservation, and in such a manner as to serve adequately all
lots with connection to the public system.
5. Service Connections
Connections to the sewer system shall be installed for
every lot in the subdivision and shall include a four (4) inch lateral
extending at least ten (10) feet onto the property line with a clean-cut
installed extending to grade and properly capped to prevent infiltration.
6. Protection of Water Supplies
There shall be no physical connection between a sewer
system and a public or private potable water system which would permit the
passage of any waste water or polluted water into the potable water
supply. The vertical and horizontal
separation of sanitary sewers and water mains shall be as required by the
McMinnville Water/Waste Water Department.
7. Inspections,
Testing and Material Certifications
a. All sanitary sewers and appurtenances are to be inspected by
representatives of the City McMinnville.
Prior to the start of construction, the developer or his representative
shall contact the McMinnville Water/Waste Water Department in order to develop
an inspection schedule.
b. As a minimum, all sanitary sewer construction shall be
subjected to visual, leakage, and where flexible pipe is permitted, deflection
testing. The McMinnville Water/Waste
Water Department may require other testing, including compaction tests prepared
by an independent testing laboratory for back-filled utility trenches.
c. The contractor(s) and/or supplier(s) furnishing pipe,
manholes, and other appurtenances shall furnish to the City of McMinnville
written certification that the materials used in the construction of sanitary
sewer improvements developed under these regulations meet or exceed the
appropriate specifications,
8. As-Built Drawings
Prior to the acceptance of all sanitary sewer collection
systems shown on all plats presented to the McMinnville Regional Planning
Commission and prior to the release of any financial guarantee as required by
these regulations, the developer shall submit to the McMinnville Water/Waste
Water Department a complete set of "as-built" drawings for said
system.
9. Subsurface Sewerage Disposal Systems
Where the Planning Commission determines that a
subdivision does not have to connect to the existing sewerage system, lots must
contain adequate area for the installation of approved septic tank(s) and
disposal fields as determined by and approved in writing by the Tennessee
Department of Environment and Conservation prior to the plat receiving final
approval.
I. Other
Utilities (Gas, Electric, Telephone, Cable TV, etc.)
1. Below
Ground
The Planning Commission shall encourage the complete
use of underground utilities (including electric, telephone, and cable TV)
wherever practical. These are to be installed in the street right-of-way
between the paved roadway and property line to simplify location and repair of
lines. After grading is completed and approved, and before any pavement base is
applied, all of the instreet underground utility work shall be completely
installed and approved throughout the length of the street and across the flat
section.
2. Above
Ground
Where electric, telephone and/or cable TV utilities
are to be installed above ground, they should be provided for in rear lot
easements whenever practicable. These easements shall be perpetual,
unobstructed, a minimum of 20 feet in width and provided with satisfactory
street access. Whenever possible easements shall be cleared and graded.
3. Underground
Service Connections Required
Underground service connections for all utilities
(including electric, telephone and cable TV) shall be installed for each lot
within the subdivision and all wires and cables shall be enclosed in an
appropriate conduit. This requirement
shall be noted on all final subdivision plats.
J. Lots
1. Lots
to be Buildable
The lot arrangement shall be such that in constructing
a building there will be no foreseeable difficulties for reasons of topography
or other natural conditions. Lots should not be of such depth as to encourage
the later creation of a second building lot at the front or rear. If the
subdivision is to be served by public sewer, lots should be designed so that
none will be "below grade" and be rendered unservable by sewer.
2. Lot
Lines
Side lot lines shall generally be at right angles to
straight street centerline, and radial to curved street centerline. Rear lot lines should consist of straight
lines with a minimum number of deflections.
3. Minimum
Lot Size
The size, shape and orientation of lots shall be such
as the Planning Commission deems appropriate for the type of development and
use contemplated.
a. Residential
lots served by public water and public sanitary sewer systems:
Minimum area = 15,000 sq. ft. or as required by the McMinnville Zoning
Code. (Amended 12/9/97)
Minimum width at building setback line = 75 ft.
b. Residential
lots served by public water and private sewage disposal systems:
Minimum area = (amended 4/8/97)
(1) Lots
with a soils rating of between 15-60 minutes shall have a minimum area of
22,000 sq. ft.*
(2) Lots
with a soils rating of between 75-106 minutes shall have a minimum area of
30,000 sq. ft.*
Minimum width at building setback line = 100 ft.*
*Greater minimum area may be required for private
sewage disposal if there are factors of drainage, soil condition or other
conditions to cause potential health problems. The Planning Commission requires
that results from soils tests be submitted in order to approve subdivisions
dependent upon septic tanks as a means of sewage disposal.
c. Non-residential
Lots
The size of lots reserved or laid out for commercial
or industrial properties shall conform with provisions of the McMinnville
Zoning Code and shall be adequate to provide for the off-street services and
parking facilities required by the type of use and development contemplated.
Platting of individual lots should be avoided in favor of an overall design of
the land, so as to provide insulation against adverse effects on present or
future adjacent residential development.
4. Building
Setback Lines
The minimum depth of building setback lines from the
abutting street right-of-way shall be in accordance with requirements in the
current McMinnville Zoning Code.
5. Minimum
Street Frontage
All lots shall have a minimum of 50 feet of frontage
on a public street, except on a permanent dead-end street (cul-de-sac) where
the minimum frontage may be 30 feet.
6. Off-Street
Parking
All residential subdivision lots shall provide
sufficient off-street parking space for at least three (3) vehicles.
Non-residential subdivisions shall provide off-street parking and loading space
in accordance with provisions of the McMinnville Zoning Code.
K. Drainage
An adequate drainage system, including necessary open
ditches, pipes, culverts, intersectional drains, drop inlets, bridges, etc.,
shall be provided for the proper drainage of all surface water. This will
include adequate easements to remove surface water from the buildable portion
of lots.
1. Drainage Plan Required
A drainage plan showing proposed modifications to the
flow of water across the site of the proposed subdivision or to and from
adjoining properties shall be prepared and submitted with the preliminary plat
of the subdivision.
2. Removal
of Spring and Surface Water
The subdivider may be required by the Planning
Commission to carry away pipe or open ditch any spring or surface water that
may exist either previous to, or as a result of the subdivision. Such drainage
facilities shall be located in the street right-of-way where feasible, or in
perpetual unobstructed easements of appropriate width.
3. Other
Watercourses
Where a watercourse separates a proposed street from
abutting property, provision shall be made for access to all lots by means of
culverts or other structures of design approved by the Public Works Director or
County Road Superintendent. Where a subdivision is traversed by a watercourse,
drainage way, channel or stream, there shall be provided a storm water easement
or drainage right-of-way as required, and it shall in no case be less than 20
feet in width.
4. Storm
Drainage Under Streets
Cross drains shall be provided to accommodate all
natural water flow, and shall be of sufficient length to permit full width
roadway and the required slopes. All cross drains that are to be laid under the
roadway shall be of concrete construction.
The size openings to be provided shall be determined by the Rational
Formula, but in no case shall the pipe be less than 18 inches in diameter.
Cross drains shall be built on straight line and grade, and shall be laid on a
firm base but not on rock. Pipes shall be laid with the spigot end pointing in
the direction of the flow and with the ends fitted and matched to provide tight
joints and a smooth uniform invert. Head walls shall be provided at each end of
all cross drains. Drains shall be placed
at a sufficient depth below the roadbed to avoid dangerous pressure of impact
with the top of the pipe at least one (1) foot below roadbed.
5. Driveway culverts shall be a minimum of 15 inches in
diameter.
6. Accommodation of Potential Upstream Development
A culvert or other drainage facility shall, in each
case, be large enough to accommodate potential runoff from its entire upstream
drainage area, whether inside or outside the subdivision.
7. Responsibility
for Downstream Drainage
The subdivider's engineer shall also study the effect
of each subdivision on the existing downstream drainage facilities outside the
area of the subdivision. Where it is anticipated that the additional run-off
incident to the development of the subdivision will overload an existing
downstream drainage, provision shall be made for the improvement of said
condition.
8. Storm
Water Retention
The Planning Commission may require storm water
retention facilities for subdivisions where the presence of Sinkhole Retention
Areas, Flood Hazard Areas or water courses of limited capacity are the
recipients of storm water discharge from the site of said subdivision. In general, this requirement will apply only
to those subdivisions planned to contain five (5) or more dwelling units or
commercial and/or other structures which will consists of a total of 10,000 or
more square feet of impermeable surface (roof and parking area).
When it is determined by the Planning Commission that
storm water retention facilities are required, no plat for such subdivision
shall be approved from which storm water run-off is discharged into public
rights-of-way, public drainage structures or natural water-courses at a rate
greater than the rate which water is being discharged from the site prior to
the proposed development taking place.
The drainage plan accompanying the plat for all
subdivisions meeting this criteria shall show all proposed discharge structures
and points of storm water discharge from the site. Said plans shall be accompanied by a set of calculations which
illustrate the flow of storm water from each existing and proposed discharge
point expressed as cubic feet per second (cfs) and gallons per minute
(gpm). Said calculations shall show
this discharge of water under existing and proposed conditions.
9. Land Subject of Flooding-See Section B of this
Article for Special Requirements for Floodable Areas.
10. Erosion
Reduction
The developer shall utilize grading techniques,
subdivision design, landscaping, sedimentation basins, special vegetation
cover, and other measures to reduce erosion and sedimentation during and after
development.
L. Preservation
of Natural Features
The developer shall, wherever possible, attempt to
preserve all natural features which add value to residential developments and
to the community, such as large trees or groves, water courses and falls,
historic spots, vistas and similar irreplaceable assets.
ARTICLE IV SPECIAL DEVELOPMENTS
A. Planned Unit Development Subdivision
Standards
The purpose of the Planned Unit Development (PUD) is
to allow flexibility and innovation in land development and land use. This form of development, which is also
referred to as "cluster development" or "open space
development," usually involves the clustering of dwelling units on certain
portions of the site and generally includes common open space property owned
and maintained by a property owners association. It is an environmentally sound concept, because it can allow for
development in the most suitable areas while preventing development in
unsuitable areas such as flood plains or areas with steep slopes. Also it is an economically sound concept;
because it can reduce the costs for infrastructure (the length of street and
utility lines can be significantly decreased).
The McMinnville Zoning Code provides for two (2) types
of Planned Unit Developments Districts: (1) PRD-Planned Residential District
and (2) PCD-Planned Commercial District.
These zoning districts allow for the mixture of land uses such as
traditional single-family houses, town houses, apartments, and some commercial
and pubic uses. Generally, the intent
of the Planned Unit Development is to permit varied lot sizes and clustered
development while at the same time preserving open space without increasing
overall density and without increasing the effective impact on the community.
All Planned Unit Developments or similar such
developments shall meet the following standards:
1. The developer shall meet with the City Administrator, Codes
Enforcement Official, and Staff Planner to become familiar with all applicable
requirements.
2. Shall be in compliance with all provisions of Section 11-511
of the McMinnville Zoning Code.
3. In general, shall meet all requirements and minimum
standards of design required in these regulations.
4. Depending on the design of the development and/or types of
residential units within, some or all of the development may be required to
conform to TCA 66-27-101 through 123, entitled Horizontal Property Act.
B. Large Scale Development
The requirements of these regulations may be modified
in the case of large scale community or neighborhood units, such as a housing
project, trailer court or shopping center which is not subdivided into
customary lots, blocks, and streets, if the development is approved by the
Planning Commission and if it is in conformity with the purpose and intent of
these regulations.
C. Condominium Developments
Proposed residential or commercial projects which will
offer individual attached units for sale with or without any land, and with
certain elements in common to all units may be required to conform with
requirements of TCA 66-27-101 to 123, entitled the Horizontal Property Act.
ARTICLE V ENFORCEMENT AND PENALTIES FOR VIOLATIONS
The enforcement of these regulations and penalties for the unapproved
recordation or transfer of land are provided by state law in the authority
granted by public acts of the State of Tennessee.
A. Whoever,
being the owner or agent of the owner of any land, transfers or sells or agrees
to sell or negotiates to sell such land by reference to or exhibition of or by
other use of a plat of subdivision of such land without having submitted a plat
of such subdivision to the McMinnville Regional Planning Commission and
obtained its approval and before such plat be recorded in the office of the
county register, shall be deemed guilty of a misdemeanor, punishable as other
misdemeanors as provided by law, as provided in Sections 13-4-306 and 13-3-410 Tennessee
Code Annotated.
B. The
description by metes and bounds in an instrument of transfer or other document
used in the process of selling or transferring a lot in an unapproved
subdivision shall not exempt the transaction from being a subdivision if two
(2) or more lots are being created and does not exempt such transaction from
misdemeanor penalties as provided in Sections 13-4-306 and 13-3-410 Tennessee
Code Annotated.
C. No
building permit shall be issued and no building or structure shall be erected
on any lot within the area of jurisdiction of the Planning Commission unless
the street giving access to the lot shall have been accepted or opened as a
public street in accordance with these regulations, or otherwise had received
the legal status of a public street, or unless such street corresponds to a
street shown on an approved plat, etc., as provided in Sections 13-4-308 and
13-3-411 Tennessee Code Annotated.
D. Any
building or structure erected or to be erected in violation of Section
13-4-308, Tennessee Code Annotated, shall be deemed an unlawful building
or structure, and the building inspector or the city attorney or other official
designated by the McMinnville Board of Mayor and Aldermen may bring action to
enjoin such erection or cause it to be vacated or removed.
E. No
board, public officer, or authority shall light any street, lay or authorize
the laying of water mains or sewers or the construction of other facilities or
utilities in any street located within the area of planning jurisdiction,
unless such street shall have been accepted, opened, or otherwise received the
legal status of a public street prior to the adoption of these regulations, or
unless such street corresponds in its location and lines with a street shown on
a subdivision plat approved by the Planning Commission, or a thoroughfare plan
made and adopted by the commission as provided in Section 13-4-307, Tennessee
Code Annotated.
F. No
county register of deeds shall file or record a plat of a subdivision of land
within the McMinnville Planning Region without the approval of the McMinnville
Planning Commission as required by Section 13-4-302, Tennessee Code
Annotated, and any county register so doing shall be deemed guilty of a
misdemeanor, punishable as other misdemeanors as provided by law.
ARTICLE VI ADOPTION
A. Before
adoption of these subdivision standards, a public hearing as required by
Section 13-4-303 and Section 13-3-403, Tennessee Code Annotated, was
afforded any interested person or persons and was held on November 14,
1995. Notice of such hearing was
announced in the Southern Standard, being of general circulation within
the area of planning jurisdiction on October 13, 1995 and November 5, 1995
stating the time and place for the hearing.
B. These
regulations shall be in full force and effect from and after their adoption.
Adopted:
November 14, 1995
_________________________ _________________________
Chairman,
McMinnville Secretary,
McMinnville
Regional Planning Commission Regional Planning Commission
APPENDIX A
ILLUSTRATIONS

