A. 
Streets which join or are in alignment with streets of abutting or neighboring properties shall bear the same name. Names of new streets shall not duplicate nor bear phonetic resemblance to the names of existing streets within the Town and shall be subject to the approval of the Planning Board.
B. 
Street name signs shall be furnished and installed by the subdivider. The type, size, and location shall be subject to the approval of the Planning Board.
A. 
Street classification definitions. As used in this section, the following terms shall have the meanings indicated:
ARTERIAL STREET
A minor thoroughfare with the potential of servicing more than 150 units of residential development with only one outlet.
COLLECTOR STREET
A street servicing at least 40 units but not more than 150 units of residential development.
INDUSTRIAL AND COMMERCIAL STREETS
Streets servicing this type of development.
LOCAL STREET
A street servicing fewer than 40 units of residential development.
B. 
Dimensions for street construction. The dimensions for street construction shall be as follows:
Description
Type of Street
Arterial
Collector
Local
Industrial and Commercial
Right-of-way width (feet)
80
60
50
80
Pavement width (feet)
32
26
24
44
Shoulder width (feet)
12
8
5
12
Curbing
Vertical
Vertical
Sidewalk width (feet)
5
Industrial (feet)
5
Commercial (feet)
6
Minimum grade
0.5%
0.5%
0.5%
0.5%
Maximum grade
5.0%
6.0%
8.0%
5.0%
Minimum center line radius (feet)
800
230
150
800
Minimum tangent between curves of reverse alignment
Roadway crown
1/4"/ft.
1/4"/ft.
1/4"/ft.
1/4"/ft.
Minimum angle of street intersections
60°
60°
60°
60°
Minimum distance between street intersections:
Same side (feet)
400
400
300
400
Opposite sides (feet)
300
250
150
300
Sight distance (feet)
250
20
150
250
K factor, crest vertical curve
45
30
15
45
K factor, sag vertical curve
45
35
20
45
Design speed (mph)
45
35
25
45
Maximum grade at intersection (within 75 feet of intersections)
2%
3%
3%
2%
Curb radii at intersections (feet)
90° intersections
30
20
15
30
60° to 90° intersections
30
30
30
30
90° to 120° intersections
50
40
30
50
Minimum property line radii at intersections (feet)
20
10
10
20
This section applies to local streets only. The presentation of special design, discussion, and written permission by the Planning Board shall be required for those conditions that may require a dead-end street under the category of collector, arterial, industrial or commercial. Standards as listed under § 10-2.31, Subsection B, shall be applicable for dead-end streets. In addition, the following requirements shall be fulfilled:
A. 
The design of streets shall provide for the proper continuation of streets from adjacent subdivisions and built-up areas and proper projection of streets into adjacent unsubdivided and open land.
B. 
The maximum street length of dead-end streets shall be limited to 2,500 feet, measured from the center line of the feeder street to the center of the turnaround radius. However, the Planning Board may allow longer lengths because of property configuration and/or topographical constraints.
C. 
Radii of turnaround at the end shall be as follows:
(1) 
Property line: 65 feet.
(2) 
Outer edge of pavement: 54 feet.
(3) 
Inner edge of pavement: 30 feet.
The subdivider shall be required to investigate and determine the types and classifications of the subbase soils. Computations shall be made to determine pavement design standards for construction, which shall be submitted for review by the Road Commissioner. If, during construction, subsurface soils vary from original classifications, pavement design shall be modified to meet the new classification. Revised pavement design shall be submitted to the Road Commissioner for approval.
If the proposed subdivision as presented shows streets which meet the street classification definitions, then it shall be the responsibility of the developer to meet the requirements for that classification of street as set forth in this Part 2.
A. 
Subdivisions containing more than 150 units. If the proposed subdivision as presented contains more than 150 units of development or if additional land owned by the developer is available for expansion of the subdivision, then it shall be the responsibility of the developer to meet the requirements for arterial street construction as presented herein.
B. 
Subdivisions adjacent to areas of future development. If the Planning Board determines that future development will occur on land adjacent to or near the proposed subdivision and in the control of the developer, then the Planning Board shall retain the right to require sufficient rights-of-way within the proposed development to meet the standards for arterial street construction at no cost to the Town.
A. 
Intent. An adequate storm drainage system, including appurtenances such as catch basins, shall be provided for proper drainage of stormwater collected in streets and areas tributary to the street system. Discharge of the collected storm drainage shall be by piped system or ditches, when approved by the Planning Board. Appropriate conveyances for outlets to drainage systems must be provided. A minimum width of 30 feet will be required.
B. 
Design standards.
(1) 
All stormwater systems within the subdivision shall be designed to meet the criteria of a five-year storm based on rainfall data from weather bureau records in Portland. Flows shall be computed by the rational method, with design computations being submitted for approval.
(2) 
Upstream drainage shall be accommodated by an adequately sized system through the proposed subdivision for existing conditions and future potential development in the upstream drainage area or areas tributary to the proposed subdivision, as determined by the Planning Board.
(3) 
Existing downstream drainage facilities shall be studied to determine the effect of the proposed subdivision's drainage. The developer shall demonstrate to the satisfaction of the Planning Board that the storm drainage from the proposed subdivision will not, in any way, overload existing storm drainage systems downstream from the proposed subdivision.
(4) 
No stormwater will be permitted to drain across a street or across an intersection.
(5) 
Design standards for drainage systems shall be approved by the Planning Board.
(6) 
Where open ditches, channels, streams or natural courses are used, either to collect or discharge stormwater, adequately sized perpetual easements shall be provided. The minimum width shall be 30 feet.
(7) 
Where subsurface soils are of the nature requiring an underdrainage system, underdrains shall be installed and discharged in a positive manner.
(8) 
House foundation drains may be connected to the storm drainage system upon approval by and under the direction of the Road Commissioner.
C. 
Street and storm drainage plans. Construction plans for streets and surface drainage systems shall be designed and prepared by a professional engineer registered in the State of Maine. Plans shall show the plan, profile, cross-sections, and details of appurtenances. Three copies shall be submitted to the Planning Board for its review and referral to other Town officials. No construction will be permitted until the Planning Board has approved construction drawings.
A. 
Grading. All streets shall be graded to their full width by the subdivider. Street grading, preparation, cuts, and fill must be inspected and approved, in writing, by the Road Commissioner.
B. 
Preparation. Before grading is started, the entire right-of-way area shall be cleared of all stumps, roots, brush, and other objectionable material and all trees not intended for preservation.
C. 
Cuts. Tree stumps and other organic materials shall be removed to a depth of two feet below the subgrade. Rocks and boulders, when encountered, shall be scarified to subgrade.
D. 
Fill. All material used in the construction of embankments shall be of the quality to meet the standards for embankment construction, Section 203.15 of the Maine Department of Transportation Standard Specifications. Excess materials, including organic materials, soft clays, wet and noncompactible materials, etc., shall be removed from the street site. The fill shall be spread in layers not to exceed 12 inches loose and compacted. The filling of utility trenches and other places shall be mechanically tamped.
E. 
Side slopes. All side slopes shall be at a slope of four horizontal to one vertical.
F. 
Bases and pavement. Where pavement placed joins an existing pavement, the existing pavement shall be cut along a smooth line and to a neat, even, vertical joint. Broken or raveled edges will not be permitted, nor shall deviation from grade.
A. 
Monuments shall be set at all street corners, at all points where the street line intersects the exterior of the subdivision, and at angle points and points of curve in each street. The top of the monument shall be flat and have an indented cross to identify properly the location. The monuments shall be made of granite and shall be four feet long and six inches above ground, except in lawns, drives and parking lots where they shall be flush. If the subsurface is a ledge between one foot and three feet deep, a two-foot-diameter concrete encasement based on the ledge shall be required. If the ledge is less than one foot deep, a one-inch steel rod shall be grouted into the ledge.
B. 
All other lot corners shall be marked with iron pipe not less than 3/4 inch in diameter and 24 inches long and driven so as to be flush with the finished grade.
A. 
A public water supply system with fire hydrants shall be installed at the expense of the subdivider; or if in the opinion of the Planning Board service to each lot by a public water system is not feasible, the Planning Board may allow individual wells to be used.
B. 
Because they are difficult to maintain in a sanitary condition, dug wells shall be permitted only if it is not economically or technically feasible to develop other groundwater sources.