A.
All improvements specified or implied on the definitive
plan shall be constructed or installed by the applicant in accordance with
the provisions of this article of the rules and regulations or as directed
by the Board. The applicant shall furnish all necessary materials, labor,
and equipment which may be required to complete the work called for or implied
on the definitive plan, including all related expenses. Items not specifically
mentioned herein shall be constructed in accordance with the latest revision
of the Standard Specification for Highways and Bridges of the Massachusetts
Department of Public Works (hereinafter referred to as the "Department's
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. Therefore, the Board may employ a registered professional engineer to act as its agent for the inspection of the work. In order that the Board's engineer may properly inspect the work as it progresses, the applicant will keep the engineer 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 engineer 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 Article VIII for inspections required by the Board.
Construction details and specifications shall comply with the standards
contained in the construction specifications and standards volume which is
available from the Engineering Section of the Barnstable Department of Public
Works for a nominal fee.
A.
The subdivision, including all way and lot lines and
all drain lines and utilities shall be laid out as to line and grade by a
registered land surveyor and a certificate filed with the Board to this effect.
Stakes for line and grade, clearly marked with the proper station, shall be
maintained throughout construction.
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.
A.
The entire area to be occupied by the roadway plus an
additional four feet or extending outward to the toe of slopes in fill areas,
whichever is greater, shall be excavated a minimum of 15 inches below finished
grade in cut sections or as necessary to remove the topsoil in fill sections
or such greater depth as may be required by the Board's engineer if soft
or yielding material, clay, peat, silt, sand pockets, boulders or rocks, organic
materials, or other material detrimental to the subgrade is encountered. All
fill or undisturbed material shall be non-frost-susceptible and shall contain
not more than 3% passing the No. 200 sieve for a minimum depth of three feet
below the finished roadway grade.
B.
Trees intended to be preserved shall be protected from
injury by suitable boxes or fenders, or wells if in fill.
C.
The Board's engineer will make an inspection when
this phase of the work is completed.
The erosion control plan shall include the use of erosion control measures
recommended by the Soil Conservation Service for use during and after construction.
A.
Erosion minimalization. Stripping of vegetation, soil
removal and regrading shall be accomplished so as to minimize erosion.
B.
Duration of exposure. The duration of exposure of disturbed
area shall be kept to a practical minimum.
C.
Temporary erosion control. Temporary vegetation and/or
mulching shall be used to protect exposed critical areas during development.
D.
Permanent erosion control installation. Permanent (final)
vegetation and mechanical measures to stabilize the land surface and control
erosion shall be installed as soon as practicable after construction ends.
E.
Protection of permanent drainage facilities. Until a
disturbed area is stabilized, permanent drainage facilities, including but
not limited to catch basins, pipes, retention basins, grass swales and infiltration
devices, shall be protected from sediment in runoff water by the use of temporary
drainage facilities such as debris basins, sediment basins, silt traps or
other acceptable methods.
F.
Dust control. During grading operations, methods of dust
control shall be employed wherever practicable.
A.
Conformance to department's specifications. The
construction of the drainage system, including methods of construction and
quality of materials shall conform to the applicable sections of the Department
of Public Works specifications except as modified hereafter or as directed
by the Board's engineer.
B.
Storm drains. Storm drains shall be constructed of reinforced
Class V concrete pipe with removable rubber gasket joints and of a strength
or class adequate to withstand the H-20 live loads and dead loads which the
pipe will be subjected. All joints shall be securely mortared or clamped.
The pipe shall be a minimum of 12 inches in diameter and shall be laid at
a minimum pitch so as to maintain a velocity of three feet per second when
flowing full.
C.
Catch basins. All catch basins shall be constructed of
air-entrained cement concrete, and a standard square frame and grate, with
square holes, and a granite mouth frame shall be furnished and set. All catch
basins shall have an inside diameter of at least four feet, shall be constructed
with a minimum depth of four feet below the invert of the outflow pipe or
the bottom of the pipe trap, whichever is lower, and as otherwise shown in
accordance with the latest revisions of the construction standards of the
Department of Public Works.
D.
Manholes. All manholes shall be constructed of the same
materials as permitted herein for catch basins except that a standard heavy
twenty-six-inch diameter cover and frame shall be furnished and set, and all
other details shall be as shown in the Department of Public Works standards
for manholes.
E.
Subsurface drainage system. The subsurface drainage system
as shown on the definitive plan or as ordered by the Board during construction
shall be constructed of not less than six-inch diameter perforated polyvinyl
chloride (Schedule 40) pipe with perforations turned up, and laid to line
and grade.
F.
Headwalls. All drainage pipe shall end in an air-entrained
cement concrete or air-entrained cement masonry headwall having dimensions
as specified in the Department of Public Works standards and constructed in
accordance with the Department's specifications.
G.
Compressive strength of concrete. The air-entrained cement
concrete shall have a minimum compressive strength of 3,000 pounds per square
inch after 28 days curing.
H.
Tide gates. All tide gates shall be of standard manufacture,
of the same size as the outfall pipe, elastomer synthetic fabric type and
subject to the approval of the engineer.
I.
Inspection required prior to backfilling. The engineer
will inspect the completed drainage system or sections thereof prior to placing
any backfill.
J.
Backfill specifications. All trench backfill for the
storm and subsurface drains and other backfill within the limits of the way
shall conform to the base course requirements and shall be deposited to required
subgrade in not more than six-inch layers and compacted to 95% of the maximum
dry density as determined by modified Proctor Test, in accordance with ASTMC-1557,
Method D.
A.
Responsibility. The applicant shall provide and install
all necessary materials, appurtenances and equipment to complete the utilities
as may be required by the definitive plan in a manner acceptable to the officials
or agency having jurisdiction of each service as previously mentioned herein.
All costs incurred by the applicant as a consequence of installing and maintaining
such utilities as the Board required shall be paid by the applicant, including
all costs which may be incurred for any reasons whatsoever. The Board will
not take any action to have the applicant reimbursed for any costs so incurred.
B.
Submission of finalized utility plans. Prior to the beginning
of construction of the road, the applicant shall submit to the Board's
engineer for his approval finalized plans of the various utilities including
water, sewer, electric, telephone, gas and cablevision. The finalized plans
shall be approved in writing by an authorized representative of the utility
company involved.
C.
Fire alarm system specifications. The fire alarm system
connection will be made by the Fire District using materials which shall be
furnished by the applicant as specified by the Fire District.
D.
Hydrant specifications. The type of hydrants and type
and size of pipe serving the hydrants shall be as directed or approved by
the Fire District.
E.
Water system specifications. The type and size of pipe,
fittings and appurtenances for the water system shall be as directed or approved
by the Fire District or water company.
F.
Sewer system specifications. All materials and work in
connection with the sewer system shall be as directed and approved by the
Department of Public Works.
G.
Electric power installation. All materials and work in
connection with electric power service shall be as directed and approved by
the manager of the electric company.
H.
Notification of backfill and paving. All work in connection
with the utilities shall be left uncovered until such time as the Board's
engineer permits the backfill to be placed. The applicant shall notify all
companies with utilities installed or to be installed within the ways as to
the date and time the applicant intends to place the gravel base course and
the paving so that such utility company may properly record the location of
pertinent features of the system so that they will not be covered or lost
as a result of the paving operation.
I.
Backfill specifications. All trench backfill material
for the utilities within the way limits shall conform to the base course requirements
and shall be deposited to required subgrade in not more than six-inch layers
and thoroughly tamped, not puddled, to 95% of the maximum dry density as determined
by modified Proctor Test, in accordance with ASTMD-1557, Method D.
All fill material which may be required within the exterior lines of
the way up to the twelve-inch gravel foundation shall be of clean gravel or
other suitable material as approved by the engineer and compacted to 95% of
the maximum dry density as determined by modified Proctor Test, in accordance
with ASTM-1557, Method D. All utilities including but not limited to storm
drains, subdrains and drainage structures and sewers if required within the
way lines shall be installed prior to the completion of the fill. This shall
include the installation of each service pipe, sleeve or conduit to the front
lot line of each lot in the subdivision. Upon completion of the fill and the
backfill of all service trenches, the work will be inspected by the Board's
engineer. Subsequent work shall not commence until the engineer has approved
the fill as acceptable for the application of the roadway foundation material.
A.
A minimum of 12 inches of clean gravel, as approved by
the engineer, shall be deposited in not more than six-inch layers for the
full width of the way so as to form a roadway foundation which shall be at
all points parallel to the finished grade of the roadway surface. The gravel
shall be compacted to 95% of the maximum dry density as determined by the
Modified Proctor Test, in accordance with ASTMD-1557, Method D. The gravel
shall consist of processed gravel for subbase meeting the Massachusetts DPW
Specification Number M1.03.1 to the following gradation:
|
Sieve Size
|
Percent Passing By Weight
| |
|---|---|---|
|
3 inches
|
100
| |
|
1 1/2 inches
|
70-100
| |
|
3/4 inches
|
50-85
| |
|
No. 4
|
30-60
| |
|
No. 200
|
0-5
|
B.
The engineer will inspect the roadway foundation after
the compaction of each six-inch layer and after the approval of the completed
foundation.
C.
Where it is acceptable to both the applicant's engineer
and the Planning Board's engineer, an alternate roadway foundation may
be utilized consisting of a minimum of 12 inches of reclaimed pavement borrow
material (reclaimed asphalt). In general the use of dense graded crushed stone
will only be permitted where the underlying material is suitable, well draining,
and structurally sound. The dense graded crushed stone shall conform to the
following gradation:
|
Reclaimed Pavement Borrow Material
| ||
|---|---|---|
|
Sieve Size
|
Percent Passing By Weight
| |
|
2 inches
|
100
| |
|
1 1/2 inches
|
70-100
| |
|
3/4 inch
|
50-85
| |
|
No. 4
|
30-55
| |
|
No. 50
|
8-24
| |
|
No. 200
|
3-10
| |
D.
The subgrade and each six-inch layer of gravel shall
each be compacted with a minimum of three passes of a vibratory roller. Additional
passes shall be made as required to achieve the 95% density required.
A.
General provisions. All roadways shall be paved to conform
with the finished grade and width as specified with Class I bituminous concrete
paving Mass. Type I-1 in accordance with the Department's specifications
and subject to the approval of the engineer. The applicant shall submit a
specification job-mix formula to the engineer for approval prior to starting
the work, and a test report verifying that the minimum temperature of each
load is 350° F.
B.
Binder and finish course requirements.
(1)
Minimum depth requirements after compaction:
|
Type of Street
|
Binder Course
(inches)
|
Finish Course
(inches)
| |
|---|---|---|---|
|
Major
|
4.0
|
2
| |
|
Secondary
|
3.5
|
1.5
| |
|
Minor
|
2.5
|
1.5
|
(2)
If the binder course is to be left without a topcoat
over a winter when access is needed to properties along the road, then all
utility castings shall be no higher than the level of the binder course of
mix to facilitate snow plowing. The castings shall then be raised to the grade
of the finished topcoat just prior to placement of the topcoat.
A.
Sidewalks shall have a finished grade in relation to
the roadway as shown on [1] and shall be constructed of bituminous or portland cement concrete.
The gravel foundation shall be a minimum of six inches in thickness and shall
otherwise conform to the requirements of the roadway foundation.
[1]
Editor's Note: The diagrams of typical road cross sections are included
at the end of this chapter.
B.
Sidewalks shall have transverse slopes or crowns of 3/8
of an inch per foot.
C.
Bituminous concrete sidewalks shall consist of one inch
of Type I-1 binder course and one inch of Type I-1 surface course after compaction.
D.
Portland cement concrete sidewalks shall be four inches
thick and constructed in accordance with the Department's specifications.
E.
Sidewalks constructed of all-weather materials other
than bituminous concrete may be approved if they are deemed appropriate by
the Planning Board.
A.
Requirements. Cape-Cod-type bituminous concrete berm
shall be provided on all roadways unless otherwise approved by the Planning
Board. In the following situations, vertical or sloped granite curbing shall
be provided in place of bituminous concrete berms:
(1)
In or adjacent to urbanized village centers.
(2)
Along the side of the traveled way to protect sidewalks
where there is less than a four-foot grass strip separating the traveled way
from the sidewalk.
(3)
Where adjacent streets have granite curbing and the Planning
Board determines that the granite curbing shall be extended into the subdivision.
(4)
To delineate traffic islands or where otherwise needed
to improve traffic control.
(5)
In commercial or industrial subdivisions where the Planning
Board determines they are necessary to adequately channelize traffic.
B.
Specifications. Curbing and berm shall be of the following
dimensions and types. Curbing and berm materials and installation shall conform
to the applicable Department's specifications.
|
Description
|
Type
|
Width
|
Heights
|
Length
| |
|---|---|---|---|---|---|
|
Bituminous Concrete
|
Cape Cod
|
1 foot
|
3 inches
|
Continuous
| |
|
Vertical Granite
|
VB
|
5 inches
|
15 inches to 17 inches
|
3 feet to 10 feet
| |
|
Sloped Granite
|
SB
|
11 inches to 13 inches
|
3 inches to 6 inches
|
2 feet to 6 feet
|
C.
Cape Cod berms. Cape Cod bituminous concrete berms shall
be constructed monolithically with the bituminous binder and top courses.
Berms shall be one foot in width. The berm shall be even with the gutter on
the road side and three inches higher than the gutter on the shoulder side
of the berm.
A.
Requirements. A grass plot shall be provided on each
side of all roadways according to the typical road cross sections. (See Appendix.)
The finished grade of the grass plot in relation to the finished grade of
the roadway shall be as shown on the typical road cross section.
B.
Specifications. The top six inches of grass plots and
side slopes (cut or fill) shall be good quality loam as approved by the engineer
and shall be screened, raked and rolled with a hand roller to finished grade.
The loam shall be of good quality that will support the growth of grass without
requiring heavy use of pesticides or fertilizers. After installation of loam,
the applicant's engineer shall submit test results of the organic content,
pH and nutrient content of the loam. The loam shall be seeded with lawn grass
seed applied in sufficient quantity to assure adequate coverage and establish
growth. Grass seed shall consist of a seed mixture suitable for the location
and containing a substantial proportion of fescue and perennial rye seed.
The applicant shall perform sufficient cuttings and maintain the grass plot
until such time as the street is accepted by the Town, or the Board finds
that the subdivision is complete.
Street trees, with a caliper of not less than 2 1/2 inches in diameter, and of a species approved by the Tree Warden, shall be planted on each side of every street in the subdivision wherever, in the opinion of the Planning Board, existing woodlands or individual trees are absent or not retained. Trees shall be located outside the exterior roadway lines unless located in green strips (see § 801-29D), at thirty-foot intervals unless otherwise specified by the Tree Warden in accordance with general practice in the Town. At the discretion of the Board, an easement, of such width as requested, outside the exterior way lines may be required for the planting of trees.
The area outside the traveled way in cut areas shall be sloped at a
rate not steeper than three to one until it intersects the finished grade
of the abutting lots, except as may be required for sidewalks. All such slopes
shall be loamed and seeded as previously required for grass plots.
Guardrails shall be installed where warranted as indicated on the figure
in the Appendix and where required by the Board. Guardrails on major and secondary
roads shall be steel beam highway guardrail Type SS in accordance with the
Massachusetts Highway Department standards. On minor roads and in Historic
Districts, steel-backed wood rail in accordance with the National Park Service
either/or ASHTO standards may be used in the place of steel beam guardrails
where permitted by the Board.
Granite or reinforced concrete bounds shall be set at all street intersections
at all points of change in direction or curvature of streets, at all front
corners and at other points where, in the opinion of the Board permanent monuments
are necessary, but in no case more than 500 feet apart. Monuments shall be
at least five inches by five inches by 30 inches. The cap shall be as specified
by the Board. The bounds shall otherwise conform to the Department's
specifications and shall not be set until all construction which could disturb
the monument is completed. After setting, the location of the bounds shall
be certified by a licensed land surveyor.
Street signs of the reflecting type specified by the Department of Public
Works and bearing the names of the intersecting streets, as indicated on the
definitive plan, shall be erected at all intersections of streets in the subdivision.
Such signs shall be subject to the approval of the Board. Temporary wood signs
with black letters stenciled on to a white background shall be installed on
all roads in the subdivision at the beginning of clearing for construction
of the road. Temporary signs shall be maintained and replaced as necessary
until the permanent signs are installed. Permanent street signs must be installed
after the road shoulders are loamed and seeded, and an acceptable stand of
grass has grown.
The entire area of the subdivision shall be cleaned up so as to leave,
in the opinion of the Board, a neat and orderly appearance free from debris
and other objectionable materials. All catch basins and manholes shall be
cleaned out. Following the completion of this and other items of work as required
herein, a final inspection will be made.
If released from restrictions with regard to sale of lots or buildings on lots by the posting of a performance bond or other security, the applicant shall maintain the roadway for vehicular traffic in a manner satisfactory to the Board. Further, the applicant shall maintain the roadway in a subdivision in a condition which meets all the above requirements to the satisfaction of the Board either until acceptance of the way by vote of the Town, or for a period of one year from the date of release of the security. A retainage fee is required to cover this period of time. See § 801-24P.
