[Amended 12-5-1996]
A.
The Town of Agawam Department of Public Works Construction
Standards, as amended from time to time, shall apply to all subdivisions
and are hereby incorporated herein by reference. The Town of Agawam
Department of Public Works Construction Standards are on file and
may be viewed at the offices of the Agawam City Clerk, Department
of Public Works and Planning Department.
B.
Prior to ordering materials or starting any construction,
the subdivider together with his contractor and engineer (if applicable)
shall arrange for a meeting with the Engineering Division and the
City Planner. At this meeting, the rules for conducting construction
operations in the subdivision and on city streets will be outlined
and discussed. Notices to be given, methods and materials to be employed,
how utility connections are to be made, fees required and other operational
matters will be discussed.
A.
The entire area of each street or way shall be cleared
of all stumps, brush, roots, boulders, like material and all trees
not intended for preservation.
B.
All loam, clay, peat or other yielding material shall
be removed beneath all street layouts to a depth specified by the
Town Engineer and shall be replaced with a granular material acceptable
to the Town Engineer.
C.
Whenever it is necessary to install fill to bring
a roadway to subgrade, said fill shall be of a granular material satisfactory
to the Town Engineer. All fill shall be placed in eight-inch layers
compacted to not less than 95% of the maximum dry density, as specified
in Section 150.62 of the Commonwealth of Massachusetts Department
of Highways Standard Specifications for Highways and Bridges (MHD
Specifications), as amended.
[Amended 12-5-1996]
D.
Wherever the borings indicate a groundwater within
four feet of the proposed roadway surface or wherever the soil particle
size indicates the possibility of a capillary rise of water in the
subgrade soil, subdrains shall be installed under both shoulders of
the roadway. The design and depth of the subdrain shall meet with
the approval of the Town Engineer.
E.
Wherever rock, in the opinion of the Town Engineer,
is encountered, it shall be excavated to a depth of four feet below
the subgrade of the roadway for the full width of the street layout.
The excavated rock shall be replaced with a granular material satisfactory
to the Town Engineer.
F.
Roadways shall be brought to the subgrade elevation
prior to the installation of the water mains, storm drains, sanitary
sewer or other utilities. Additional requirements for design of pavement
for certain subgrade soils may be necessary.
G.
The subgrade of the roadway shall be compacted to
a density and by a method approved by the Town Engineer prior to the
placing of the subbase or base of the roadway.
H.
Gravel subbase.
[Amended 3-21-1991; 12-5-1996]
(1)
The material used for the gravel subbase shall be
gravel approved by the City Engineer, which meets the Commonwealth
of Massachusetts Department of Highways Standard Specifications for
Highways and Bridges (MHD Specifications), as amended, Material Specification
M 1.03.0 Type b (three-inch maximum size) and conforms to construction
methods stipulated in Section 401.60, except that all courses shall
be laid in depths not exceeding four inches compacted depth.
(2)
The maximum size aggregate for subbase courses shall
not exceed four inches. The cost of any soil tests needed to determine
the suitability of a material for use as a subbase shall be borne
by the developer.
(3)
The gravel shall be spread and compacted in layers
not exceeding six inches in depth compacted measurement. The gravel
shall be compacted to the density specified in § 401 of
the MHD Specifications.
I.
Gravel base. The material used for gravel base shall
be dense-graded crushed stone approved by the City Engineer, which
meets MHD Specification M 201.7 for material and is placed in conformance
with Section 402 for construction. All courses of gravel base shall
be laid in depths not exceeding four inches compacted depth.
[Amended 3-21-1991; 12-5-1996]
J.
Pavement. The material used for the roadway finish
course shall be Class I bituminous concrete Type I-1 applied in two
courses. The material and work shall conform to § 460 of
the MHD Specifications and shall meet with the approval of the Town
Engineer. The installation of all subsurface utilities within the
roadway shall be completed before placement of the first (binder)
course. Where there is concern over possible settlement, the City
Engineer may require one winter season to elapse between utility installation
and top course pavement installation. In no event shall the interval
between placement of binder course and top course of pavement exceed
two years. The construction of bituminous concrete pavement shall
terminate on November 15 and shall not be resumed prior to April 1
unless specifically allowed, in writing, by the Town Engineer. No
paving shall be done when the air temperature in the shade is 40°
F. or less nor where the material on which the pavement is to be placed
contains frost. A tack coat of bitumen at the rate of 0.05 to 0.10
gallon per square yard shall be applied to the base course of pavement,
all as determined be the City Engineer. Material and placement shall
be as approved. The tack coat shall be only applied to the extent
that it can be covered with the surface course within one day.
[Amended 12-5-1996]
K.
Roadway pavement design. Using soil information obtained as required in § 159-7C(8), a pavement design shall be prepared utilizing California bearing ratio values or equivalent values obtained for the subgrade. This will normally be required in clay, loam, peat or silt subgrade materials or as otherwise required by the Town Engineer. The design shall consider and employ, as needed, increased thickness of the gravel subbase, use of geotextile fabric and/or plastic grids, use of subdrains and other measures necessary. (See also Subsections C and E.) This design shall be included in the definitive plans submitted for review by the Planning Board. See Table 5.1[1] for minimum thickness of the gravel base, subbase and
pavement.
[1]
Editor's Note: Table 5.1 is included at the end of this chapter.
L.
Bituminous concrete curbs shall be installed on both
sides of each roadway, except at intersections, using bituminous concrete
Type I-1 and an approved curb forming machine. All curbs shall have
a minimum reveal of six inches and shall be installed on a bituminous
base. At driveways, all curbs shall be installed so as to return to
the sidewalk. At intersections, Type VB granite curbing shall be installed
along the arc of the curves. The granite curbing shall have a six-inch
reveal and a width at the top of six inches. The curbing shall be
set by a method approved by the City Engineer.
[Amended 4-5-1990; 12-5-1996]
A.
Sanitary sewer mains and laterals shall be polyvinyl
chloride pipe conforming to ASTM D 3034-SDR 35. The minimum size for
sewer mains shall be eight inches while the minimum size of sewer
laterals shall be four inches.
B.
All sanitary sewers, sewer force mains and sewer laterals
shall be installed in first-class bedding and in accordance with the
Department of Public Works Specifications. Sewers shall be installed
to the line and grade indicated on the plans.
C.
Only precast concrete manholes of a design approved
by the Town Engineer shall be installed on a sanitary sewer main.
For the most part sanitary sewer manholes shall be installed no further
than 300 feet apart and the sewer shall be laid in a straight line
between manholes.
D.
Before any sanitary sewer will be accepted by the
Board, it must pass an infiltration or exfiltration test, at the discretion
of the Town Engineer, made in accordance with the Department of Public
Works Specifications. Said test will be made at the developer's expense
and shall be made under the direction of the Town Engineer.
E.
No groundwater or surface water shall be discharged
into the sanitary sewer. No storm drain, foundation or cellar drain
or roof leader may be connected to a sanitary sewer or sewer lateral.
F.
Where rock is encountered, it shall be removed to
a depth of one foot below the flowline of the sewer and the pipe laid
in a properly compacted granular material approved by the Town Engineer.
G.
Only granular material approved by the Town Engineer
shall be used as backfill in any trench excavation.
A.
Storm drains shall be reinforced concrete pipe conforming
to ASTM C-76, Class 3 minimum, polyvinyl chloride pipe conforming
to ASTM D3034, SDR35 or polyvinyl chloride ASTM F-794. Bedding for
various types of storm drains shall be as approved by the Engineer.
B.
All storm drains, including catch basin leaders and
culverts, shall be installed in first-class bedding. All work and
materials shall be in accordance with the Department of Public Works
Specifications.
C.
Precast concrete or concrete block manholes of a design
approved by the Town Engineer shall be used on storm drains. In general
the distance between manholes shall not be greater than 300 feet.
D.
Catch basins in general shall be installed at intervals
of not more than 300 feet on both sides of a roadway and at intersections
as necessary. The basins shall be of the Connecticut Basin type and
shall conform to the Department of Public Works Construction Standards
or shall be approved by the Town Engineer.
[Amended 12-5-1996]
E.
Where rock is encountered, it shall be removed to
a depth of one foot below the flowline of the drain and the pipe laid
in a properly compacted granular material approved by the Town Engineer.
F.
Only granular material approved by the Town Engineer
shall be used as backfill in any trench excavation.
G.
When warranted by local water table conditions, the
Planning Board may require that foundation subdrains be installed
by the developer.
A.
All water mains shall be installed using ductile iron
pipe conforming to ANSI A21.51, Class 52, with full thickness cement
lining conforming to ANSI A21.4.
B.
The hydrants furnished shall meet the Town hydrant
standards and shall be of a type currently being used by the Town.
C.
Grate valves shall be of the New York pattern, Metropolitan-type
openings to the left, counterclockwise.
D.
All materials and work shall be in accordance with
the specifications of the Department of Public Works. All water mains
shall be installed in first-class bedding.
E.
Before any water main will be accepted by the Board,
it must pass a pressure and leakage test made in accordance with the
Department of Public Works Specifications. Said test will be made
at the developer's expense and shall be made under the direction of
the Town Engineer. Water mains shall be disinfected and tested for
total coliform at the developer's expense. Where the coliform test
does not meet state standards, reflushing, disinfecting and retesting
will be required at the developer's expense.
F.
All water services to the lots shall be installed
using Type K copper tubing at least 3/4 inch in diameter. The service
connections shall have a corporation with shutoff at the main and
a curb stop at the street line.
G.
Where rock is encountered, it shall be removed to
a depth of one foot below the flowline of the water mains and connections
and the pipe laid in a properly compacted granular material approved
by the Town Engineer.
H.
Only granular material approved by the Town Engineer
shall be used as backfill in any trench excavation.
A.
There shall be cement concrete sidewalks constructed
on both sides of each street in the subdivision. The width of the
sidewalks shall be as specified under the Design Standards for the
various classes of streets. The construction must conform to the Town
of Agawam Department of Public Works Specifications for Construction
of Cement Concrete Sidewalks, April 1989. All materials and construction
methods shall be as specified in the Department of Public Works Specifications.
[Amended 4-5-1990]
B.
There shall be tree belts constructed on both sides
of each street in the subdivision. The width of the sidewalk shall
be as specified under the Design Standards for the various classes
of streets. Loam shall be placed to a minimum depth of six inches.
Lime, fertilizer and grass seed shall be applied as required in the
specifications of the Department of Public Works. The tree belts shall
be reworked and reseeded until a stand of grass satisfactory to the
Town Engineer has been established.
C.
Pedestrianways and bicycle paths as shown on the plans
shall be eight feet wide and constructed according to this section.
A.
Streetlights shall be installed by the power company
at the developer's expense, and the developer shall be responsible
for the cost of lighting until the street is accepted by the Town.
The streetlights and standards shall be of the type adopted by the
Town as a standard installation. The lighting shall be installed on
a street prior to occupancy of any house on that street.
B.
All underground utilities, such as gas mains and electric
and telephone lines, including service connections, shall be installed
prior to the construction of the roadway surface, base or subbase.
All methods used to install these utilities shall be subject to the
approval of the Town Engineer. Only granular material approved by
the Town Engineer shall be used as backfill in any utility trench.
[Amended 3-21-1991]
The developer shall notify the Department of
Public Works in writing at least 48 hours in advance of the time when
he plans to begin or resume any work on the improvements required
in a subdivision. The Department of Public Works shall assign an inspector
to inspect the work. The Town of Agawam shall charge the developer
at the rate set by the Department of Public Works as specified in
§ 159-6H(6) for inspection work in the subdivision. No work
shall be accepted by the Board which has not been inspected on a daily
basis during its progress. Failure of the developer to notify the
Department of Public Works or failure to have the work inspected on
a daily basis as it progresses shall be cause for the Town to require
the developer to excavate and reconstruct or do other things that
may be required to ensure that the work has been done in a satisfactory
manner. The presence of an inspector shall in no way relieve the developer
from full responsibility for the required work.
A.
Before release of the covenant, the developer shall
deposit with the Town of Agawam an amount of money sufficient to cover
the replacement of two shade trees per lot according to the specifications
of the Planning Board.
B.
The developer shall be responsible for providing,
planting and maintaining through one full year two living healthy
trees or their substitutes per lot. Such trees shall be 2.5 inches
minimum in diameter, balled and burlapped and planted in season and
subject to direction of the Tree Warden. Types of trees shall be selected
from a list available from the Planning Board which shall include
native and hardy species readily available locally.
C.
On each lot two shade trees shall be planted within
20 feet of the street line and located so as not to conflict with
underground utilities and sight distances. On places at the discretion
of the Tree Warden, shade trees may be planted on the tree belt within
the street right-of-way.
To prevent wind and water erosion, the following
measures must be employed on all sites:
A.
Regions of the site must be developed in separate
increments so that the disturbed area is kept to a minimum. At no
time is the entire area to be disturbed.
B.
Natural vegetation shall be retained and protected
whenever possible.
C.
All disturbed area shall be stabilized with a temporary
vegetative cover if to be left exposed for greater than one month,
with the exception of roadways which are to be treated with appropriate
measures at the end of each workday.
D.
All stockpiled soils shall be stabilized with temporary
vegetative cover.
Upon receipt of permits from the Inspector of
Buildings to construct dwellings, etc., each lot line must be clearly
marked and lot identified by lot and street number before any inspections
are made. Compliance with the Conservation Commission's regulations
must be posted, if applicable.
All excavations for pipe, etc., across streets
and to dwellings shall be properly protected and lighted at proper
times, according to recommendations of the Department of Public Works
and the Chief of Police. These excavations shall be properly backfilled
and well-compacted as soon after installation of pipe, etc., as is
possible.
A.
In any area outside the road right-of-way and building
site (house plus 15 feet outside walls and leach field area), no tree
over eight inches in diameter measured five feet above the ground
shall be removed without the consent of the Tree Warden or his agent.
Due regard shall be made for life expectancy and health of the vegetation
and the final proposed grading. The developer shall notify the Tree
Warden at least one week prior to any clearing of the site. No evergreen
tree or shrub shall be removed without consent of the Tree Warden
or his agent. Limits of work may be delineated on the definitive plan,
in which case no work shall be performed, including clearing, outside
those limits, but work within may proceed without further consent.
Before final inspection, the total area shall
be cleared of debris, both natural and construction materials generated
by the construction.
All proposed monuments shown on the definitive
plan shall be installed and their installation shall be certified
by the developer's engineer or surveyor. Monuments shall be of stone
or cast concrete, four inches square and three feet long, set flush
with the finished grade. Three-fourths-inch to one-inch steel pipes
or gun barrels three feet long may be used at lot corners. Where street
monuments and lot corners occupy the same point, stone or concrete
monuments shall be used.
Upon completion of any subdivision or any street
therein and prior to the final release of a bond or covenant, the
developer shall submit to the Board a final plan of each street layout,
including lot frontage, bounds and pins which have been set and ties
to intersecting street layouts. This plan shall be used as a street
acceptance plan and shall be drawn in accordance with standards set
by the Town Engineer. The plan shall be prepared by a registered professional
land surveyor and shall be suitable for recording in the Hampden County
Registry of Deeds. Accompanying this plan, the developer shall supply
the Board with a document releasing the Town from any damages which
he may incur by the acceptance of the street by the Town.
