A. 
All improvements specified or implied on the definitive plan shall be designed and constructed by the applicant in accordance with the provisions of this Part 5 of the rules and regulations or as directed by the Board. Items not specifically mentioned herein shall be constructed in accordance with the Standard Specifications for Highways and Bridges of the Massachusetts Department of Public Works, current edition (hereinafter referred to as the MassDPW Specifications), unless specifically directed otherwise by the Board.
B. 
All work performed by the applicant as a consequence of these rules and regulations will be subject to the review and acceptance or approval of the Board. The Board may employ a registered professional engineer to act as its agent for the inspection and supervision of the work. In order for the Board to properly inspect the work as it progresses, the applicant shall keep the Board or its agent informed of the progress of the work, and shall at any time provide safe and convenient access to all parts of the work for inspection by members of the Board or its agent or such persons as the Board may designate. No work will be approved which has been covered prior to inspection by subsequent work. Reference should be made to Part 6 for specific inspections required by the Board.
A. 
The subdivision, including all way lines and drain lines and municipal services, shall be laid out as to line and grade by a registered land surveyor.
B. 
Any work which, in the opinion of the Board, has not been properly laid out or does not conform to the plans may be checked by a registered land surveyor employed by the Board. If the Board determines that such work does not conform to the plan, the applicant shall pay all costs which the Board incurs as a consequence of checking the work. The Board may require the removal and correct replacement of any work which has been incorrectly laid out.
All streets shall be graded by removal of all existing brush, stumps and topsoil below the finished grade, to a width of the area occupied by the roadway plus an additional four feet on each side or extending outward to the toe of slopes in fill areas, whichever is greater. Any loam, peat or other material not considered suitable as a subbase shall be completely excavated and replaced with a structural-grade material.
If the Board determines that on-site disposal of brush and trees is appropriate, the Board shall approve the method and location of such disposal, which may include controlled burning with the approval of the Fire Chief, burial, chipping or a combination of these methods.
A. 
Adequate erosion protection measures (vegetative and/or structural) shall be made to prevent surface water from eroding cut-and-fill side slopes, road shoulders and other areas brought to final grade and to reduce sedimentation in nearby wetlands and ponds. The applicant shall describe in the application the applicant's plan for minimizing erosion and also a proposed method for controlling airborne dust during construction and before landscaping and ground cover have rooted and grown sufficiently to retard erosion.
B. 
Erosion protection measures may include the use of mulches and temporary or permanent cover crops. Types of mulch material effective for erosion control are shredded or chopped cornstalks, hay, straw and wood chips. Mulch areas damaged after heavy rainfalls, severe storms and construction activity shall be repaired as soon as discovered.
C. 
Where plantings are on areas subject to mulch removal by wind or water flows or where side slopes are steeper than 2:1 or higher than 10 feet, the mulch shall be anchored. Anchoring methods shall include tucking the mulch into the soil with a straight-blade disk, stapling netting (cotton or paper) over the mulch or driving pegs into the mulched area at intervals of about four feet and interlacing them with twine.
D. 
The Board may require temporary or permanent diversions, berms, grassed waterways, special culverts, shoulder dikes and land grading, where applicable, or such other mechanical measures as are necessary to intercept and divert surface water runoff. Retaining walls may be required where side slopes are steeper than 2:1.
E. 
The mouths of all catch basins shall be fitted with filter fabric during the entire construction process to retard siltation.
A. 
The construction of the drainage system, including methods of construction and quality of materials, shall conform to the applicable sections of the MassDPW Specifications except as modified hereafter or as directed by the Board.
B. 
Any storm drains positioned within the street line and in any location subject to vehicular loading shall be selected from the following list of alternatives and shall be in conformance with the MassDPW Specifications.
Storm Drain Specifications
Type
Minimum Required Cover
(feet)*
Ductile iron pipe
1.0
Polyvinyl chloride (PVC) pipe
2.5
Asphalt-coated corrugated metal pipe
1.5
Reinforced concrete pipe (CL III min. wall B)
2.5
*
From top of pipe to bottom of subgrade
C. 
Pipes made from other materials may be used upon approval of the Board or its authorized agents.
D. 
Leaching catch basins shall be precast units which conform to the MassDPW Specifications. The cement concrete shall have a compressive strength of 3,000 psi after 28 days and a design loading conforming to AASHTO HS20-44. The leaching catch basin shall conform to Plate No. 12 as shown in Appendix A.[1]
[1]
Editor's Note: Appendix A is included as an attachment to this chapter.
A. 
Roadway pavement shall be constructed of one of the following approved types of pavement sections:
Type 1 - Full Depth Pavement
3-inch bituminous concrete - Type I-1 Hot Mix
6-inch gravel (may use 3" gravel over 4" hardening)
Type 2 - Full Depth Pavement
3-inch bituminous concrete - Type I-1 Hot Mix
5-inch dense-graded crushed stone
Type 3 - Full Depth Pavement
1-1/2-inch bituminous concrete - Type I-1 Hot Mix
3-inch emulsified asphalt mix - Type I made with processed dense-graded aggregates
Type 4 - Full Depth Pavement
2-inch bituminous concrete - Type I-1 Hot Mix
2-inch emulsified asphalt mix - Type II made with semi-processed, crusher-run, pit-run or bank-run gravel
Type 5 - Full Depth Pavement
2-1/2-inch bituminous concrete - Type I-1 Hot Mix
2-inch emulsified asphalt mix - Type III made with sands or silty sands, mixed in place
Emulsified asphalt content shall be 14 gallons per ton of aggregate. Cut-back agent for MC-800 cut-back asphalt shall be 4% to 6% of mix. In the case of asphalt in which cold-mix or mix-in-place is used, the finished subgrade shall be primed with no less than 2/10 of a gallon of penetrating oil per square yard and let cure for 48 hours before placing the mix.
Type 6 - Full Depth Pavement
4-inch emulsified asphalt mix or MC-800 cut-back asphalt - Type I made with processed dense-graded aggregates
6-inch gravel (may use 3" gravel over 4" hardening)
The surface shall be sealed with a stone seal surface treatment as specified in Appendix A.[1]
Type 7 - Full Depth Pavement
Belgium Paving Block
1-1/2-inch stone dust
6-inch gravel (may use 3" gravel over 4" hardening)
Roadway pavement shall be constructed in conformance with the MassDPW Standard Specifications and supplemental specifications contained in Appendix A.[2]
Type 8 - Full Depth Pavement
Stabilized Gravel Base
6-inch stabilized and compacted fill consisting of 35% dense-graded crushed stone and 65% crushed stone fines and silts. (See Appendix A and Plate No. 6.[3])
Type 9 - Full Depth Pavement
Cobblestone Pavers
9-inch stone dust
8-inch gravel (See Appendix A and Plate No. 14.[4])
Type 10 - Full Depth Pavement
Brick Pavers
1-inch stone dust
4-inch dense-graded crushed stone base
12-inch gravel borrow (See Appendix A and Plate No. 15.[5])
[1]
Editor's Note: Appendix A is included as an attachment to this chapter.
[2]
Editor's Note: Appendix A is included as an attachment to this chapter.
[3]
Editor's Note: Appendix A is included as an attachment to this chapter.
[4]
Editor's Note: Appendix A is included as an attachment to this chapter.
[5]
Editor's Note: Appendix A is included as an attachment to this chapter.
B. 
All pavement types which utilize emulsified asphalt or cut-back asphalt material shall be allowed to cure a minimum of 30 days to placement of top course.
A. 
The entire area of the subdivision shall be cleaned up so as to leave a neat and orderly appearance free from debris and other objectionable materials. All catch basins and manholes shall be cleaned out.
B. 
Following the completion of this and other items of work as required herein, a final inspection will be made.