A.
All improvements hereinafter specified shall be constructed or installed
by the applicant in accordance with these rules and regulations and
in conformity with the approved definitive plan and the specifications
and other construction requirements of the agencies concerned, and
to the satisfaction of such agencies.
B.
As provided in Article 6, § 375-6.7, Verifications, approvals and special requirements, Subsection B, Agency approval, the agencies concerned may require notice on the completion of specified items of construction and the inspection thereof by a competent engineer or other person employed at the applicant's expense.
A.
General.
(1)
Each stage of work within the exterior lines of all streets
in the subdivision shall be approved before the next stage is started.
(2)
The entire area within the exterior lines of all streets in
the subdivision shall be cleared, excavated or filled as necessary,
and graded in accordance with the then current standard specifications
of the Commonwealth of Massachusetts Department of Public Works Standard
Specifications for Highways and Bridges.
B.
Specifications.
(1)
Roadways shall be constructed for the full length of all streets
in the subdivision. The center line of such roadways shall coincide
with the center line of the street rights-of-way unless a variance
is specifically authorized by the Director of Public Works. The minimum
width of roadways between curblines shall be as follows:
(2)
Where a temporary dead-end street extends 150 feet or more beyond
an intersection, there shall be constructed, as part of the roadway,
a temporary turnaround located directly adjacent to the subdivision
boundary and extending across the full width of the street right-of-way.
Suitable provision shall be made for future extension of the street
and of underground utilities.
(3)
No grade or inclination of the surface of any street shall be
in excess of 6% for main thoroughfares or 9% for minor streets, nor
shall it be less than 1.0%. The line and profile of the street shall
be acceptable to the Planning Board.
(4)
All roadways shall be brought to and include a finished grade
as shown on the profiles of the definitive plan and shall be provided
with a finished surface of their full width and length. All principal
streets and all streets in residential zones shall be constructed
with 12 inches of compacted subbase (M1.03.0 Type C Gravel Borrow
or processed gravel) with a minimum of four inches of bituminous concrete
pavement placed on top.
(5)
Bituminous concrete shall be constructed in two lifts, the first
being 2.5 inches of compacted type "I" binder, the second being 1.5
inches of compacted type "I" top course in accordance with state specifications.
All roadways shall be crowned three inches.
(6)
Cape Cod bituminous concrete curbs shall be provided on all
streets except where sloped granite curbs shall be provided on the
radius of curves at all street intersections, landscaped islands (if
permitted by the Board), and in culs-de-sac without landscaped islands.
Granite curb inlets shall be installed behind every catch basin with
a granite curb transition stone on either side of the throat to transition
the curbline to the Cape Cod curb.
(7)
All areas between the exterior street lines and the curblines
of the roadways thereon which are not occupied by sidewalks shall
be graded, loamed with six inches of loam after compacting and seeded
with grass seed. Where the final grade of the exterior street lines
is above or below the grade of the adjacent land, walls or 2-1 slopes
shall be constructed sufficient, in the opinion of the Director of
Public Works, to support the street or the adjacent land, as the case
may be.
(8)
Stone bounds shall be set on the exterior street lines at all
angle points, at the beginning and end of all curves, and at all intersections.
Such bounds shall be set with their tops at the proposed finished
surface grade, unless the Director of Public Works directs otherwise.
Bounds shall be of granite, not less than four feet long, and not
less than six inches square, with the top surface hammer-dressed,
to a six-inch area. They shall be set accurately on the street lines,
and at such elevation as the Board may direct. A drill hole 1/2 inch
by two inches shall be placed in the center of the top of each bound.
(a)
The setting of the bounds and markings shall be supervised by
a registered land surveyor. Upon completion of setting the required
number of bounds, a written certification from a registered land surveyor
shall be properly located on the as-built plan. Said certification
shall state that he/she has placed the bounds with drill holes in
accordance with the locations as shown on the approved plans.
(b)
In the case of "Green Belt land" as described in Chapter 260, Zoning, § 260-8.1, Green Belt Residential Development, stone bounds shall be set on the exterior lines of all "Green Belt land" at all angle points, at the beginning and end of all curves, at all intersections, and at intervals of 300 feet or less on straight boundary lines.
(9)
A minimum of three street trees per lot, of a minimum 2.0-inch
caliper of a native species and not to exceed more than 25% of one
species, approved by the Director of Public Works/Tree Warden, shall
be planted in the subdivision wherever, in the opinion of the Director
of Public Works/Tree Warden, existing woodlands or suitable individual
trees are not retained. Trees shall be located outside the street
right-of-way lines at a distance not to exceed 20 feet and at such
spacing and location as the Director of Public Works/Tree Warden shall
specify. The subdivision's homeowners' association trust shall be
made responsible for maintaining these trees in perpetuity.
(10)
Street signs and standards, of a design and material approved
by the Planning Board and bearing the name of the street as indicated
on the approved definitive plan and the intersecting street, shall
be erected at all intersections of streets in the subdivision. At
all points at which a private street within the subdivision intersects
with an existing public way, there shall also be erected on the same
standard and immediately below the street sign, of such size as the
Director of Public Works may deem necessary, reading "Private Way."
(11)
Sidewalks, having a width of not less than five feet if on a
principal street, or four feet if on any other street, shall be constructed
along both sides of all streets. The sidewalks shall be constructed
of three inches of hot top.
A.
General.
(1)
Storm drains, culverts and related installations, including
catch basins, gutters, and manholes, shall be installed as necessary
to provide adequate disposal of surface water from all streets within
the subdivision and adjacent land.
(2)
Each subdivision, regardless of its size, shall have a stormwater
management system compliant with the latest edition of the Massachusetts
Department of Environmental Protection's (DEP) Stormwater Management
Handbook and the requirement of these regulations.
(3)
For projects that result in a land disturbance that will disturb
equal to or greater than one acre of land or will disturb less than
one acre of land but is part of a larger common plan of development
or sale that will ultimately disturb equal to or greater than one
acre of land, the stormwater management system shall also be compliant
with the following design criteria:
(a)
Low impact development (LID) site planning and design strategies
must be implemented unless infeasible in order to reduce the discharge
of stormwater from development sites.
(b)
Stormwater management systems shall be designed to meet an average
annual pollutant removal equivalent to 90% of the average annual load
of TSS and 60% of the average annual load of total phosphorus (TP)
related to the total post-construction impervious area on the site
as achieved through one of the following methods:
[1]
Installing BMPs that meet the pollutant removal
percentages. The required removal percentage is not required for each
storm; it is the average removal over a year that is required. Pollutant
removal shall be calculated consistent with EPA Region 1's BMP Accounting
and Tracking Tool (2016) (https://www.epa.gov/npdes-permits/stormwater-tools-new-england)
or other BMP performance evaluation tool provided by EPA Region 1
where available. If EPA Region 1 tools do not address the planned
or installed BMP performance any federally or state approved BMP design
guidance or performance standards (e.g., state stormwater handbooks
and design guidance manuals) may be used to calculate BMP performance.
[2]
Retaining the volume of runoff equivalent to, or
greater than 1.0 inch multiplied by the total post-construction impervious
surface area on the site; or
[3]
Utilizing off-site mitigation that meets the above
standards within the same USGS HUC12 as the new development site.
Off-site mitigation can only be proposed for projects that cannot
meet 100% of the infiltration and/or treatment goals due to specific
site constraints.
(c)
Discharges to water bodies or their tributaries subject to one
or more approved total maximum daily load (TMDL) or impaired water
bodies and their tributaries, listed as Category 4b or 5 in the current
Massachusetts Integrated List of Waters listed pursuant to the Federal
Clean Water Act Sections 303(d) and 305(b) without an EPA approved
TMDL:
[1]
To the extent that the project will discharge to
a water body or its tributaries subject to one or more pollutant-specific
TMDLs, the project shall implement structural and nonstructural stormwater
best management practices (BMPs) that are consistent with each such
TMDL.
[2]
For any project that discharges stormwater to a
water body identified as impaired due to nitrogen, the stormwater
management system shall be designed using BMPs optimized for nitrogen
removal.
[3]
For any project that discharges stormwater to a
water body identified as impaired due to phosphorus, the stormwater
management system shall be designed using BMPs optimized for phosphorus
removal.
[4]
For any project that discharges stormwater to a
water body identified as impaired due to chloride, the applicant shall
include measures in the required operation and maintenance (O&M)
plan to minimize salt usage or use alternative deicing materials and
practices. The applicant shall consult with the Lynnfield Department
of Public Works to develop these O&M provisions.
[5]
For any project that is a commercial or industrial
land use and discharges stormwater to a water body identified as impaired
due to solids, metals, or oil and grease (hydrocarbons), the following
shall apply:
[a]
The stormwater management system shall be designed
to allow shutdown and containment in the event of an emergency spill
or other unexpected event;
[b]
Any stormwater management system designed to infiltrate stormwater
shall provide the level of pollutant removal equal to or greater than
the level of pollutant removal provided through the use of biofiltration
of the same volume of runoff to be infiltrated, prior to infiltration.
(4)
Proper connections shall be made with any existing drains in
adjacent streets or easements. Where property adjacent to the subdivision
is not subdivided, provision shall be made for proper projection of
the drainage system by continuing appropriate drains to the exterior
boundaries of the subdivision at such size and grade as will allow
for such projection.
(5)
The storm drainage system shall be laid out to the satisfaction
of the Director of Public Works, who will require provision of such
facilities and arrangement thereof as in his opinion are reasonably
necessary.
(6)
The subdivision's stormwater management system shall be designed
so as to not increase the peak rate of runoff of stormwater in the
two-, ten-, and 100-year storm events. Holding ponds, dry wells, or
other equivalent permanent means shall be provided to prevent an increase
in the rate of rainfall runoff due to the construction of roadways,
driveways, other paved areas, building roofs, and grassed areas during
these storm events. Computations prepared by a registered professional
engineer in support of the design of the preventive shall be provided
to the Planning Board. The Soil Conservation Method shall be used
for runoff computations.
(7)
A stormwater management system operations and maintenance plan
shall be submitted to and compliant with the Department of Environmental
Protection's Technical Guide for Compliance with the Massachusetts
Stormwater Management Standards. The subdivision's homeowners' association
trust shall be made responsible for maintaining the stormwater management
system in perpetuity and, if necessary, replacing the system if the
system fails. The owner is required to obtain an annual certification
from a Professional Engineer (P.E.) registered in Massachusetts that
maintenance is being performed on structural best management practices
(BMPs). The annual certification must be submitted to the Town with
required administrative forms and an operations and maintenance fee.
(8)
Plans shall show topographical information on all lots.
B.
Specifications.
(1)
The minimum size of the all drains shall be 12 inches ID and
shall be Class IV reinforced concrete pipe. At least three feet of
cover will be required over all drains.
(2)
The catch basins shall be: a minimum of seven feet deep; constructed
with a four-foot inside diameter; constructed with a four-foot sump;
made of precast concrete with H-20 design strength; and furnished
with a three-flange catchbasin frame and grate from East Jordan Ironworks
with a model number 0MA552000024 or equivalent for a single basin.
For a double catchbasin it shall be finished with a three-flange EJIW
frame with a model number of 0MA544000001 and two catchbasin grates
with a EJIW model number of 0MA552000075 or equivalent.
(3)
All manholes shall be: constructed with a four-foot inside diameter;
made of precast concrete with an H-20 design strength; constructed
with inverts made of (with) either cemented brick or concrete; and
furnished with an East Jordan Ironworks drain manhole cover #0MA211000041
or equivalent.
(4)
Catch basins shall be built on both sides of the roadway at
intervals no greater than 300 feet. They shall be built at all low
points in the roadway.
(5)
Manholes shall be built at intervals no greater than 300 feet.
The maximum distance between a catch basin and manhole shall be 300
feet.
(6)
Detention basins shall be designed to the following parameters:
(a)
All standing water shall completely drain from the pond within
24 hours from the end of the storm event.
(b)
Vehicle access to critical pond structures (inlet, outlet, forebays,
sumps, etc.) shall be provided for ease of maintenance and inspection.
"Access" is defined as the ability to drive a vehicle within three
feet of the structure.
(c)
A fence or vegetated barrier or other safety feature may be
required by the Board for detention and retention areas for reasons
of safety and aesthetics.
A.
General erosion and sediment control practices shall be implemented
during construction to meet the following design requirements:
(1)
Minimize total area of disturbance;
(2)
Sequence activities to minimize simultaneous areas of disturbance;
(3)
Minimize peak rate of runoff in accordance with the Massachusetts
Stormwater Handbook;
(4)
Minimize soil erosion and control sedimentation during construction,
provided that prevention of erosion is preferred over sedimentation
control;
(5)
Divert uncontaminated water around disturbed areas;
(6)
Maximize groundwater recharge;
(7)
Install and maintain all erosion and sediment control measures
in accordance with the manufacturers' specifications and good engineering
practices;
(8)
Use perimeter controls at the site and prevent off-site transport
of sediment;
(9)
Stabilize construction site entrances and exits to prevent off-site
tracking;
(10)
Protect and manage on- and off-site material storage areas (overburden
and stockpiles of dirt, borrow areas, or other areas used solely by
the permitted project are considered a part of the project);
(11)
Comply with applicable federal, state and local laws and regulations,
including waste disposal, sanitary sewer or septic system regulations,
and air quality requirements, including dust control;
(12)
Prevent significant alteration of habitats mapped by the Massachusetts
Natural Heritage & Endangered Species Program as Endangered. Threatened
or Of Special Concern, Estimated Habitats of Rare Wildlife and Certified
Vernal Pools, and Priority Habitats of Rare Species from the proposed
activities;
(13)
Institute interim and permanent stabilization measures, which
shall be instituted on a disturbed area as soon as practicable but
no more than 14 days after construction activity has temporarily or
permanently ceased on that portion of the site;
(14)
Properly manage on-site construction and waste materials. Control
wastes that may be discharged, including, but not limited to, discarded
building materials, concrete truck washout, chemicals, litter, and
sanitary wastes (these wastes may not be discharged to the MS4);
(15)
Protect slopes;
(16)
Protect all storm drain inlets and armor all newly constructed
outlets;
(17)
Prevent off-site vehicle tracking of sediments; and
(18)
Inspect stormwater controls at consistent intervals.
B.
A narrative of the erosion and sediment control practices shall be
provided to the Planning Board and shall include:
A.
Water mains, with hydrants, valves and other fittings, shall be constructed
and installed within the subdivisions as necessary to provide to all
lots therein adequate water supply for domestic and fire protection
use.
B.
Proper connections shall be made with the existing water systems
of the appropriate Water District. Where property adjacent to the
subdivision is not subdivided, provision shall be made for proper
projections of the system by continuing appropriate water mains to
the exterior boundaries of the subdivision, at such size and grade
as will allow for the projections.
C.
Service connections for water from the main structures in the street
to the exterior lines thereof shall be installed for each lot shown
on the plan, whether or not there is a building thereon. Any deviation
of this requirement necessitated by unusual topographic or technical
difficulties must have the specific approval of the Water Commissioners.
E.
Where the subdivision is located outside a Water District or where,
in the opinion of the Water Commissioners, reasonably accessible water
mains are not available and will not become available within a reasonable
time, and the Commissioners so inform the Planning Board, the Board
may waive the requirement of the construction of such mains. In such
cases, however, each lot shall be provided with a source of domestic
water supply satisfactory to the Board of Health, and the subdivision
shall be provided with such special water supply facilities for fire
protection as are deemed necessary by the Chief of the Fire Department.
A.
General.
(1)
All work must be constructed in compliance with the Commonwealth
of Massachusetts Electrical Code and permitted. No work shall be covered
or out of sight without prior inspection by the Town of Lynnfield's
Wiring Inspector.
(2)
All equipment and wiring back to the service or metering point
shall be owned, operated and maintained by the Town after the street
has been publicly accepted.
B.
Specifications.
(1)
Materials requirements:
(a)
Luminaires shall be: colonial pole-top; finished in a factory-applied
acrylic black, enamel finish and have a photo control socket at the
top. The luminaire used shall be Americana Electric Lighting part
number #247L-20LEDE70-MVOLT-4K-R5-AY-PCLL.
(b)
Poles shall be: round aluminum; tapered from four inches at
the base to three inches at the top; 10 feet tall; and finished in
a factory-applied acrylic black, enamel finish. Field-applied finishes
will not be acceptable. The luminaire used shall be General Electric
catalog number ARTA103S4.0ABLA.
(c)
Anchor bolts shall be: 16 inches long; made of galvanized steel;
threaded for at least four inches with 3/4-10 NC on one end and a
three-inch-long right-angle hook on the other.
(d)
The pole base shall be constructed in accordance with manufacturer's
specifications and the detail shown in Details Appendix.
(e)
All conduit used shall be one-inch-diameter PVC (Schedule 80).
(f)
Wire used shall be UL-approved, thermoplastic, approved for
wet locations, 10 AWG standed copper (unless a larger size is required
by unusual loads) 600 volt rated.
(g)
Meter socket type shall be approved by the Town of Lynnfield's
Wire Inspector and by either the Peabody Municipal Light Department
or the Reading Municipal Light Department, whichever department has
jurisdiction.
(h)
Circuit breaker panel enclosure shall be: raintight; 100 amp;
600 volt rated; cover hinged at top.
(i)
Cabinet to be used shall provide for a weathertight compartment
for panelboard. This cabinet shall also provide a location where the
meter can be installed on the outside of this cabinet for easy reading.
The cabinet shall be a Barber Electric model number B422518TCP or
equivalent. (See Details Appendix.)
(2)
Design and installation. Lighting installations shall be made
in a workmanlike manner by a qualified contractor in accordance with
applicable electrical codes. Town bylaws and Planning Board regulations.
The following regulations shall be followed when designing and installing
the streetlighting system:
(a)
Location of luminaires. Poles shall be nominally spaced 250
feet on each side of the street, with any pole being midway between
the two on the opposite side. All intersections shall be illuminated
by at least one luminaire. Pole spacing may be varied plus 25 feet
or minus 75 feet when necessary to provide even spacing on runs not
a multiple of 250 feet. Poles shall be set one foot outside the forty-foot
or fifty-foot right-of-way, on an easement provided for this purpose.
Each easement shall provide for three feet of access around each streetlight.
These locations shall be shown on the definitive plan.
(b)
Metering and service locations shall be situated to give a minimum
number and still provide no greater than a voltage drop of 3% at the
furthest luminaire. Heavier gauge wire shall be used when beneficial.
The streetlighting system shall have a minimum of two circuits, with
at least one circuit for each side of the street. These locations
shall be shown on the definitive plan.
(c)
Photo cell location. The photo cell shall be used to activate
all of the streetlights on the street. Photo cells shall be installed
on the luminaire closest to and on the same side of the street as
the cabinet. The photo cell shall be wired to the cabinet and connected
to a contactor within the cabinet that will be used to activate all
of the circuits in the cabinet.
(d)
Cable burial. Power wires, protected by rigid nonmetallic conduit
(Schedule 80), shall be buried at a depth not less than 24 inches,
and located as shown on the definitive plan. Cables shall lay in at
least three inches of sand, and be covered with at least six inches
of sand and caution tape a minimum of 12 inches above sand. The total
of bends in the conduit shall not exceed 360°. Minimum bend radius
shall be six inches. All street crossings shall be made perpendicular
to the street lines. Diagonal street crossings are prohibited. No
conductor splices shall be made in the raceway between poles or services.
Moisture or dirt shall not be allowed to enter the conduit.
(e)
Foundations. The bases for poles shall be cast from concrete
in accordance with the light pole base shown in the Details Appendix
and be allowed to harden under warm, damp conditions for at least
two weeks before installation. They shall be installed two inches
above the finish grade line, with bolts oriented as specified, and
the top surface in a true horizontal plane. Backfill shall be puddled
with water and firmly tamped every six inches.
(f)
Poles. Each pole shall be adjusted to a true vertical position
with aluminum shims. All poles shall follow the contour of the street
in straight lines or smooth curves.
(g)
Luminaires. Fixtures shall set squarely on the poles, with the
"street side" parallel with the street and adjacent to it.
(h)
Cabinet. The cabinet shall be installed so that the circuit
breakers are kept in a weathertight location and the meter can be
easily read when installed on the side. The cabinet shall be installed
on a concrete foundation and bolted down securely.
(i)
Deviations. The contractor or developer shall not perform any
work or use any material contrary to the letter and intent of his
contract or plan and this standard except that he shall request in
writing to the Department of Public Works authorization for such deviation,
stating clearly and in full the nature and scope of said deviation,
and the reason for it; and shall receive in writing approval from
the Department of Public Works to proceed in the requested manner.
A.
Natural gas service shall be provided to each lot. The developer
shall make provisions to insure that a gas service is installed to
each property and outside of the right-of-way of the roadway to allow
for the future development of the lot.
B.
The developer shall coordinate with the Gas Department to determine
the location, size, and any other appurtenances necessary to provide
gas to each lot.
C.
The engineer shall show the location of all gas mains, services,
and other appurtenances on the definitive plan prior to submission
to the Board.
A.
All utilities not listed above, such as electric power, telephone and the like, shall be installed underground in accordance with the standards of the municipal body or corporation having jurisdiction, subject to § 375-10.9, Location of underground utilities.
B.
Such system shall be owned, operated and maintained by the responsible
municipal body or corporation.
C.
All utilities shall be shown on the definitive plan prior to approval
by the Board.
The relative location of underground utilities shall be proposed
by the developer, subject to the approval of the Planning Board in
consultation with the various agencies responsible for said utilities.
