The entire area within street lines and beyond as necessary
for construction earthwork shall be cleared of all brush, tree roots,
stumps, boulders, other objectionable matter and of all trees which
will not be preserved due to their location or condition. Where good
topsoil is found within work areas, it shall be removed and stockpiled
within the subdivision for future use. All brush, stumps, roots, tree
limbs and trunks, other soft, spongy or unstable matter shall be removed
and disposed of and not buried within the limits of street lines or
used as fill. The entire area beneath the traveled way and sidewalks,
and so far beyond as necessary for lateral support of the roadway,
shall have loam, muck, peat and other unsuitable material removed
to hard bottom.
The excavated areas shall be inspected and then filled with
approved material to within the required gravel foundation or topsoil.
The developer shall notify the Highway Superintendent upon completion
of excavation and at least 24 hours (Saturdays, Sundays and holidays
excluded) before the start of the next phase of road construction.
The fill shall be placed in layers not greater than eight inches deep
and thoroughly compacted with a roller weighing not less than eight
tons. All fill material placed in trenches for utilities and around
underground structures shall be placed in six-inch-deep layers and
shall be thoroughly compacted by means of pneumatics or vibratory
tampers. The completed excavation and fill area shall be graded and
then rolled with an eight-ton roller so that the gravel foundation
material may be placed. Any soft or unsuitable areas which become
evident during rolling shall be removed and replaced with a suitable
material. Any depressions occurring during the rolling shall be filled
with suitable material and the area rerolled until it has been brought
to the proper grade.
The Highway Superintendent shall be called for inspection upon
the completion of compaction of fill and at least 24 hours (Saturdays,
Sundays and holidays excluded) before the placement of gravel foundations.
A.
Road foundations, all peat, mud etc., will be replaced with gravel,
at least one foot in thickness, four inches of crusher run gravel,
and finished with the required bituminous concrete pavement thickness.
B.
The driveway and sidewalk wearing surfaces shall be placed on gravel
foundations. The gravel foundations for the driveways shall be at
least 12 inches thick and the gravel foundation for the sidewalk shall
be at least eight inches thick. The driveway gravel shall extend from
the edge of the roadway gravel to the street line.
C.
The gravel used as foundation material shall be composed of hard,
durable stone and coarse sand, practically free from loam and clay
and when spread and compacted shall present a stable foundation. The
gravel shall be uniformly graded and shall contain no stone having
a dimension greater than four inches.
D.
The gravel foundation material shall be spread on a well-compacted
and consolidated subbase in layers no greater than six inches deep.
The gravel so placed shall be rolled true to lines and grades with
power rollers. The roller used on the roadways and driveways shall
weigh not less than eight tons and the roller used on the sidewalks
shall weigh not less than five tons. Any depressions that appear during
or after the rolling shall be filled with gravel and rerolled until
the surface is true and even.
Upon completion of gravel foundation and not less than 24 hours
before the commencement of paving, the Highway Superintendent shall
be called for an inspection. Bituminous concrete, Type 1-1, Class
1, plant mixed, hot-laid, conforming to Standard Specifications for
Highway and Bridges of the Massachusetts Department of Public Works
(hereinafter referred to as "Standard Specifications") shall be used
for paving according to the following schedule:
|
Binder Course Thickness
(inches)
|
Surface or Top Course Thickness
(inches)
|
Total Thickness
(inches)
| |
|---|---|---|---|
|
All commercial and industrial subdivisions all arterial streets
|
3
|
2
|
5
|
|
Other streets, driveway aprons
|
2
|
1 1/2
|
3 1/2
|
|
Walks
|
1 1/2
|
1
|
2 1/2
|
A.
Bituminous concrete shall be placed on a dry gravel foundation, when
the air temperature in the shade is not less than 40° F., and
when weather conditions are satisfactory. Where the existing foundation
material contains irregularities, such irregularities shall be eliminated
by the use of extra bituminous material.
B.
The material shall be delivered to the work site in a hot and easily
workable condition, so that it can be properly placed on the desired
subgrade. All bituminous concrete shall be dumped into an approved
mechanical spreader and immediately spread thereby, and struck off
in a uniformly loose layer to the full width required and to such
depth that each coarse when compacted shall have the required thickness
and shall conform to the grade and cross section. Hand spreading of
bituminous concrete mixture will be allowed only for special stretches
or areas because of irregularities or other unavoidable obstacles
which do not permit mechanical spreading and finishing. When hand
spreading is permitted, the mixture shall be dumped on a steel dump
sheet located outside of the area in which it is to be spread and
then shall be shoveled into the area to be surfaced and hand raked.
C.
Each course of bituminous material shall be rolled with a self-propelled,
equally balanced, tandem roller weighing not less than five tons and
not more than 10 tons. In places inaccessible to the power roller,
compaction shall be obtained by means of hand or vibratory tampers.
The rollers shall be operated at a speed that will not cause displacement
of the mixture. Any displacements occurring because of roller speed,
reversing of roller direction or by any other cause shall be corrected
at once by raking and adding fresh mixture when required. The roller
surfaces shall be kept moistened to prevent adhesion of the mixture
to the roller wheels.
D.
Manhole and catch basin covers, gate boxes, gas drips, and other
access to underground utilities shall be set flush with the road or
ground surfaces.
E.
Transverse joints shall be formed by laying and rolling against a
form of the thickness of the compacted mixture placed across the entire
width of the pavement. When the laying of the mixture is resumed,
the exposed edge of the joint shall be painted with a thin coat of
hot asphalt or asphalt cement thinned naphtha. The fresh mixture shall
be raked against the joint and thoroughly tamped with hot tampers
and rolled.
F.
The final bituminous surface shall show no deviation greater than
1/4 of an inch when tested with a sixteen-foot straight edge, placed
parallel to the center line of the surface course.
G.
Any soft or imperfect places or spots which develop in the surface
prior to the acceptance of the streets shall be removed and replaced
with new materials and then rolled until the edges at which the new
work cement becomes invisible. Finished roadway, driveway and sidewalk
surfaces less than the thickness specified above shall be unacceptable
and shall be repaved or replaced by the developer.
Curbing shall be installed where required (see Table 1, Street Design Standards).[1] Granite curbing shall conform to Standard Specifications,
Type H.E. Fletcher Co. Type VS 5 x 16. Radius curbing shall be used
on curves of 100 feet or less, except that curb inlets shall be five
feet long and shall be cut to the curve required on curves of 160
feet radius or less.
[1]
Editor's Note: Said table is included at the end of this chapter.
Permanent street name signs shall be on metal posts two inches or more in diameter or cross-section cut in buried concrete blocks 10 inches in diameter and 18 inches in vertical length (see § 540-36R).
Except where individual wells are permitted as an exception
to Board of Health specifications due to nonavailability of Town or
community water supply, the following specifications shall apply and
the installation shall be inspected and approved by the Board of Water
Commissioners or its agents.
A.
A complete definitive plan submission will be submitted to the Board
of Water Commissioners.
B.
Water mains shall be a minimum of eight inches in diameter except
for hydrant branches which shall be six inches in diameter. Mains
shall be ductile iron, Class 52, cement-lined, asphalt seal-coated.
Acceptance of material to be used shall be determined by the Board
of Water Commissioners or its agent.
C.
Gate valves and hydrants shall be Dresser or approved equal. Service
pipe shall be not less than 3/4 inches in diameter Type K copper or
equivalent. Corporations shall be Red Hed brass or approved equal.
Curb stops shall be Red Hed brass open left.
D.
All gate boxes and service boxes shall be sliding type, to be specified
by the Water Commissioners. Caulking material shall be Leadtite with
Johns-Manville Rubberseal, or approved equal.
E.
All lots on street in which a water main is installed shall have
service installed from the main to two feet into the lot with the
location identified on as-built plans.
F.
Hydrants with valves shall be spaced not more than 500 feet apart,
locations of which shall be approved by the Board of Water Commissioners
or its agent. Location of fire hydrants within the right-of-way shall
be as shown on the plate for the respective street cross section.
G.
Before connections to the Town system, the main and appurtenance
shall be chlorinated, flushed, and tested in accordance with the specifications
of the Board of Water Commissioners.
The side slopes, tree belt, and areas within the limits of the
street lines which are not paved shall be filled to within six inches
of finish grade with random borrow or excavated material, and the
surface graded parallel to the finished surface. Loam shall be spread
over the subgrade in sufficient quantity to produce, without rolling
and after natural settlement has taken place, a standard depth of
six inches. The surface of the loam shall be graded and raked clean
of all roots, stones and other objectionable materials. The surface
shall be maintained during period of settling and consolidation with
loam borrow. After settling has taken place, fertilizer (8-6-4 mixture
or organic or equivalent) shall be applied at the rate of 20 pounds
per 100 square yards. The seed shall be thoroughly covered with a
thin layer of loam by raking and then rolled with a hand roller weighing
not more that 100 pounds per foot of width. The seeded areas shall
be sprinkled with water from time to time and shall be protected from
damage. All areas which fail to show a uniform growth of grass shall
be reseeded until the entire area is covered with a uniform growth
of grass. Seeded areas shall be maintained and kept mowed until the
street has been accepted.
A.
Loam shall be a fertile, friable, natural topsoil typical of the
locality, without admixture of subsoil, refuse, or other foreign materials.
It shall contain a normal amount of organic matter and shall be reasonably
free from stumps, roots, hard dirt, heavy or stiff clay, stones larger
than one inch in diameter, coarse sand, lumps, noxious weeds, sticks,
brush or other litter.
B.
Grass seed shall be fresh, clean, new crop seed, germinative to at
least 85% and composed primarily of the following species: Kentucky
bluegrass, fancy solid redtop, domestic ryegrass, and chewing fescue.
A.
Excavation. The trench for the pipe shall be excavated to the required
line and grade including earth, boulders and ledge. Trenches for storm
drains shall be no wider than the outside diameter of the pipe plus
24 inches. This trench width shall apply from the top of the pipe
to the bottom of the trench. Above the top of the pipe the trench
may be as necessary to properly install the pipe. Trenches with side
slopes steeper than the natural angle or repose of the soil shall
be sheeted in an approved manner, as necessary, to avoid cave-ins
and sloughing. All excavations shall be properly barricaded and lighted
at night where they are close to pedestrian or vehicular traffic.
Before any pipe is placed in a newly constructed fill, the contractor
shall, as directed, place the filling two feet above the top grade
of the pipe after which the pipe trench may be excavated. In any cross
pipes, conduits, drains or other unforeseen obstacles are encountered
in the excavation which cannot be relocated, the drain shall be redesigned
to avoid the obstruction in a manner suitable to the Planning Board
or its agent. Possible obstructions to the line shall be investigated
prior to the construction of the drain in its immediate vicinity.
B.
Bedding. Trenches may be excavated with a flat bottom, but the full
length of the pipe, except the bell, must rest upon undisturbed soil
except as hereinafter specified. Where trenches have been overexcavated,
a selected earth or gravel foundation, thoroughly compacted, shall
be provided for proper pipe bedding. Soil which is considered to be
unstable by the Planning Board or its agent shall be removed to a
depth of not less than two feet below the bottom of the pipe and replaced
with compacted sand and gravel to the bottom of the pipe. Unstable
soil or other excavated material shall be disposed of off site as
directed by the Planning Board or its agent.
C.
Pipe laying. Pipe shall be laid starting with the downstream end.
A laser beam or other approved devices shall be provided to insure
that the pipe is laid true to line and grade. Reference bench marks
shall be clearly marked to enable the inspector to quickly check the
grade and invert elevations. The joints of all pipes shall be filled
with mortar composed of one part portland cement to three parts clean
sharp sand. Lime may be added up to 25% of the cement and enough water
to make a workable mix. The downstream pipe shall be laid with groove
or bell and facing upstream in the proper position, and a dab of mortar
shall be placed in the bell or groove. The spigot or tongue end shall
be placed in the bell or groove, such that the inverts match and,
the peripheral space shall be filled with stiff mortar. All mortar
squeezed out on the inside of the pipe shall be removed before it
sets.
D.
Backfilling. After the pipe has been laid and inspected, the trench
shall be backfilled. The space under the pipe haunches shall be carefully
filled with selected material, free from stones or frozen earth, and
compacted carefully to prevent the pipe from moving. The layer of
backfill up to 12 inches over the top of the pipe shall also be of
selected material free from stones and frozen earth, well compacted.
The remainder of the trench shall be backfilled in twelve-inch layers
except as noted below; under roads or other traffic areas the trench
shall be backfilled in six-inch layers with each layer compacted to
the density of the surrounding soil. Pavement and base course materials
removed during the excavation process shall be replaced with pavement
and base course to match those removed. When, in the opinion of the
Planning Board or its agent, the excavation is deep enough to warrant
it, temporary pavement shall be provided as directed. Trenches not
in pavement shall be left in a mounded condition as directed by the
Planning Board or its agent.
[Added 5-25-2006]
A.
Permanent monuments shall be installed by the developer at every
corner and angle point on the boundary line of the development, in
accordance with the approved lots. Open space and/or conservation
areas that are a condition of approval must be marked with monuments.
B.
Monuments must be made of quarry split (peen-hammered top) granite
or precast, reinforced concrete marker with a minimum size of four
inches by four inches set at a depth of at least 3.6 feet into the
ground with a minimum of one inch exposed and drill hole.
C.
Certification, in writing, shall be made by a registered land surveyor
for the developer to the Planning Board that, as determined by a surveyor
after completion of construction, and prior to the issuance of an
occupancy permit, that the bounds have been properly set in accordance
with the approved plan and rules and regulations of the Planning Board.
Tie sketches to bound points shall be furnished to the Planning Board
and Building Inspector on eight-and-one-half-by-eleven-inch sheets
of paper with a title block.
Masonry, brick or reinforced concrete retaining walls, large
culverts, bridges, guard rails, noncircular turnarounds, steps and
other special designs not included or not conforming to these rules
and regulations shall be submitted as detail drawings to appropriate
scale, including materials, location, dimensions and method of construction
as appropriate. The Standard Specifications of the Massachusetts Department
of Public Works, good engineering practice, and recommendations of
manufacturers shall be followed so far as practicable and shall be
cited on detail drawings.
A.
Upon completion of each of
the following construction phases and at least 24 hours (Saturdays,
Sundays and holidays excluded) before the work is covered up, backfilled,
or the next phase commences, the appropriate Town official or Board
shall be notified and given the opportunity to inspect the work:
(1)
Excavation.
(2)
Fill.
(3)
Gravel foundations.
(4)
Bottom or base bituminous concrete placement.
(5)
Utility trenching.
(6)
Water pipe and appurtenances installation.
(7)
Pipe laying: drains and culverts.
(8)
Catch basins and manhole construction.
(9)
Loaming and seeding.
(10)
Shade tree planting.
(11)
Final bituminous surface.
(12)
Backfill and compaction.
B.
If work is covered without opportunity for inspection as specified
above, it will not be accepted and the developer will be required
to open or re-do the phases not inspected.
The construction of the roads and municipal services required
under these rules and regulations shall be completed within two years
from the date of endorsement of the plan. Failure to so complete the
construction of roads and the installation of municipal services within
the specified two-year period shall automatically rescind approval
of the plan.
The applicant shall report the status of the construction, installation
and completion of the subdivision to the Board every six months from
the date the definitive plan is approved to the final completion of
the subdivision. Such reports may be made at a regularly scheduled
Planning Board meeting or may be made in writing.
It is mandatory that a developer complete all roadwork before
issuance of building permits, the only exception being the final bituminous
concrete finish coat. If it is necessary the Board can allow station
by station completion of the roadwork.
