A.
It is the intent to set forth design and construction standards consistent with the statements of intent in Article I (and other provisions) of this chapter, with the requirements of the Protective Bylaw, with the objectives of the Master Plan, and with standards which are used for roads constructed by the expenditure of public funds; to provide for siting of streets and ways so as to provide convenient access to uses on individual lots and convenient access for the repair, maintenance, revision, or storage of utilities, water, fuel, communications, and disposal of waste; and to provide for design and construction of roadways that minimizes the need for future maintenance or reconstruction, that provides a roadway base that will not move or frost heave, that inhibits erosion, and which provides for both surface and subsurface drainage adequate to accommodate the impact of twenty-five-year and one-hundred-year storms.
B.
The subdivision design and construction shall meet or exceed the
minimum standards contained herein. The subdivider shall be responsible
for complying with these standards even if the plans indicate otherwise,
unless a specific variance therefrom has been expressly authorized
in writing by the Planning Board. Construction standards, except as
specifically modified in this chapter, shall be in accordance with
the Massachusetts Department of Public Works Standard Specifications
for Highways, Bridges and Waterways (1967), hereafter abbreviated
"SSHBW." Specific references to SSHBW do not exclude other applicable
provisions. The term "engineer" in SSHBW shall be interpreted as the
Board or its designated inspector.
C.
This article and Article V, Mini-Subdivision, of this chapter also contain design criteria based on publications of the American Association of State Highway Officials (hereafter abbreviated "AASHO"), Washington, D.C., in particular "A Policy on the Geometric Design of Rural Highways" (1965) and "A Geometric Design Guide for Local Roads and Streets, Part I, Rural" (1971 Revision of the 1970 Edition). The latter is abbreviated hereafter "AASHO DG."
The subdivision in general shall conform to the Master Plan,
if any, adopted in whole or in part by the Planning Board except as
the same purposes may, in the judgment of the Board, be served better
by modifying the Master Plan for the general area of the subdivision.
A.
Preservation of existing assets. The subdivider shall make every
reasonable effort to preserve natural and other features, such as
large trees, watercourses, scenic points, historic spots, stone walls
and other aspects of rural, historic, and regional character, and
similar assets. The Planning Board encourages property owners and
subdividers to make use of conservation grants or easements, most
particularly in wet areas, and of common land held by a qualified
homeowners' association.[1]
[1]
Editor's Note: Throughout this chapter, the term "automatic-membership
homes association" was changed to "qualified homeowners' association"
at the request of the Town.
B.
Parks and open space. The subdivision plan shall show a park or parks
of suitable character and location for playground, recreation, or
open space uses (SCL § 81U). Such areas shall be of reasonable
size. Unless otherwise specifically authorized by the Planning Board,
the total area so reserved shall not be less than 10% of the gross
area of the subdivision outside any W District, and each such area
shall have at least the frontage and access of a Type 2 lot. The Board
shall, by appropriate endorsement on the plan, require that no building
may be erected on such lands for a period of three years without its
approval. Such areas shall be available to the Town or may be held
indefinitely as open common land by a qualified homeowners' association
acceptable to the Planning Board and including all property owners
in the subdivision, provided the Town through the Conservation Commission
is granted such rights as are sufficient to assure the permanence
of the open character of the land.
A.
General design and location.
(1)
Streets shall be designed so that, in the judgment of the Planning
Board, they shall provide safe vehicular travel and safe and reasonable
access to the lots which they serve, so that driveways from the street
to usable areas of lots can be installed completely within the boundaries
of each lot in conformity with the bylaws of Harvard without undue
hardship and without requiring blasting or easements onto other properties,
and so that such streets will provide a reasonable maximum of attractiveness,
livability, and amenity of the subdivision.
(2)
Streets shall also be located so as to permit each lot to have its water supply and sewage disposal system, including the entire leaching field, located on the main portion of the lot, thereby providing ready, safe, and convenient access to all parts of the system so as to facilitate and assure its periodic cleaning and servicing and its repair, expansion, or reconstruction by the owner when necessary. However, the Planning Board may waive compliance with the preceding sentence where the Board specifically finds it in the public interest to approve a plan with such modifications, conditions, limitations, and requirements it considers necessary to provide ready, safe, and convenient access to all parts of the sewage disposal system, including the entire leaching field, and to facilitate and assure such periodic cleaning and servicing, repair, expansion, and reconstruction. (See § 130-6 of this chapter.)
B.
Access.
(1)
Provision suitable in the opinion of the Planning Board shall be
made for the projection of streets and access to other streets and
adjoining property. All lots shall be designed to conform to the Protective
Bylaw both before and after the construction of future projections
or access streets. Reserve strips prohibiting access to streets or
adjoining property will not be permitted except where the Board deems
it in the public interest.
(2)
Access to facilities on parcels which are not part of building lots
shall be over rights-of-way along common boundaries between lots,
which shall be improved by access drives which the Planning Board
judges adequate for the purpose served, but at least constructed to
the standards of a gravel-surface, single-lane mini-subdivision drive.
(3)
Utilities, pipelines, communication and emergency warning cables, waterlines, sewer pipes, and similar amenities which must serve or go past lots not in the same ownership shall be carried along the street or over rights-of-way along common boundaries between lots; they shall not be carried in rights-of-way cross lots. Such rights-of-way shall be improved along the entire length as in Subsection B(2) preceding and/or shall be directly accessible from a drive so improved running alongside it. Where such amenities are to be installed to serve lots in the subdivision, the rights-of-way shall be shown on the plot plan and site plan, and the improvements to, and amenities within, such rights-of-way shall be completed as part of the improvements for which completion security is posted.
C.
Intersections. Streets shall intersect at right angles unless, in the judgment of the Planning Board, this is impracticable; in no case shall the angle be less than 60°. (See also Subsection D, Geometric design, below.)
D.
Geometric design. It is the intent that all streets and intersections
within the subdivision, and outside of it, shall be so designed and
constructed or reconstructed as to provide for the safe and rapid
flow of traffic while preserving the environmental integrity and historic
values of the neighborhoods through which they pass.
(1)
Except as otherwise specifically provided in this chapter, street
and roadway design, layout and construction shall provide for:
(a)
Street width > 25 feet on each side of
the (roadway) center line.
(b)
Street flare at intersections > that
of Figure 1.[1]
[1]
Editor's Note: Figure 1 is included at the end of this chapter.
(c)
Center-line radius (of curvature) > 200
feet (> 80 feet in turnarounds).
(d)
Sight distance (outside turnarounds) as given in the accompanying
Table of Clear Lines of Sight.
|
Table of Clear Lines of Sight
|
|---|
|
Based on "A Geometric Design Guide for Local Roads and Streets,
Part I, Rural," 1971 Revision of 1970 Edition, Table 2, and "A Policy
on Geometric Design of Rural Highways," 1965, Figure VII-5, American
Association of State Highway Officials, Washington, D.C.
|
|
Streets With Through Traffic1
|
Local Traffic Only2
|
State Highway
| |
|---|---|---|---|
|
Stopping sight distance (feet)
|
275
|
200
|
Same as "Through Traffic"; consult also Mass. Dept. of Public
Works Standard Operating Procedures
|
|
Height of eye, 3.75 feet, and height of object, 0.50 foot, both
within paved roadway
| |||
|
Corner sight distance at intersections (feet)
|
500
|
400
| |
|
Measured from a point on the minor road at least 10 feet from
the edge of the major road pavement and measured from a height of
eye of 3.75 feet on the minor road to a height of object of 4.5 feet
on the major road
|
|
NOTES:
|
|
1Indicates the following heavily
traveled roads: Routes 110 and 111, Bolton Road, Littleton Road, Stow
Road, Prospect Hill Road, Oak Hill Road, Slough Road, Pinnacle Road,
Poor Farm Road, South Shaker Road, West Bare Hill Road, Woodchuck
Hill Road, Harvard Depot Road, Mill Street and Old Mill Road.
|
|
2All other roads.
|
(e)
Tangent length > 150 feet separating
reverse curves (> 50 feet in turnarounds).
(f)
Center-line separation of intersections along the same street
of at least 550 feet.
(g)
Roadway width (outside turnarounds) > 24 feet and < 26 feet.
(h)
Radius of roadway edge at intersections > 25 feet.
(i)
Center-line grades > 3/4%, < 9% (< 6% in turnarounds), < 3% where center-line radius is < 200 feet, and < 3% within 75 feet of an
intersecting street.
(j)
The staggering of side streets shall be by at least 125 feet
offset of side street center lines if the judgment of the Board is
that the safety of traffic flow is better served by staggering intersecting
streets than by a four-way intersection.
(2)
The Planning Board may require greater standards for principal streets.
E.
Dead-end streets. Dead-end streets shall be provided with a turnaround
(Figure 2)[2] providing for one-way traffic in a counterclockwise direction.
All lots shall be designed to conform to the Protective Bylaw both
before and after any extension. Such streets shall be < 500 feet in roadway center-line length to the beginning of the turnaround
except:
(1)
As a section of an expected development of land in common ownership
with the locus wherein, in the judgment of the Planning Board, the
way will become continuous, with the order of development chosen to
minimize the time and probability of discontinuity; or
(2)
Where, in the judgment of the Board, a greater length is necessitated
by topography or other local conditions.
[2]
Editor's Note: Figure 2 is included at the end of this chapter.
F.
Shoulders and embankments. (See also § 240-25B, Shoulders
and guardrails.)
(1)
Shoulders. Shoulders shall extend six feet from the roadway, sloping
up at 1:6 (vertical:horizontal) for the first two feet and 1:12 thereafter.
(2)
Embankments.
(a)
Banks joining shoulders to natural grades shall have slopes
no steeper than 1:3, except for short stretches approved by the Planning
Board on which the slope may be up to 2:3 in suitable soil and up
to 4:3 in sound rock, provided that:
[1]
Soil slopes between 1:3 and 1:2 shall be stabilized by at least
six inches of wood chips, and suitable retaining walls and/or riprap
is used to provide safety and maintainability on steeper slopes; and
[2]
Suitable easements are provided for slope access and maintenance;
and
[3]
The Planning Board endorses on the plan conditions restricting
the number and type of lots that may use such stretches as access
frontage if it deems such restrictions appropriate (SCL § 81R).
(b)
Embankments having more than 10 feet of elevation change shall
be terraced at roughly equal vertical intervals, not to exceed eight
feet, with provisions adequate in the judgment of the Planning Board
to interrupt, divert and (if necessary to counter erosion) to drain
the downward flow of runoff, the breakout of subsurface flow, and
erosion products.
(3)
Guardrails. Guardrails shall be provided in the outer one foot of
shoulder where the bank slope down from the shoulder is greater than
1:4 and otherwise as required by the Board.
G.
Utilities.
(1)
Utility lines, including telephone, electric, and any fire alarm
lines, shall be underground unless, in the judgment of the Planning
Board, it is impracticable for a particular interval because of conditions,
such as extended ledge, especially affecting such interval. Mains
shall be located in the shoulder outside the gravel base. Any lighting
standards shall be in the outer one foot of the shoulder. Easements
shall be provided as needed and shall be > 20
feet wide. Telephone service shall be provided from the 772 or 456
exchange or from new or successor exchanges serving mainly, or only,
telephones in Harvard.
(2)
Any pipes which are installed to carry drinking water, or sewage,
or runoff or subdrainage from leaching fields, shall be separate from
the fire-fighting water supply and the storm drainage system. Such
pipes shall be of materials and size adequate in the judgment of the
Planning Board for their purposes and shall be buried below the frost
line.
H.
Drainage. (See also § 130-25C, Drainage.) It is the intent to require a surface and subsurface drainage system that will keep the base and subgrade of the roadway dry to prevent frost heaving and to have storm drains that will cope with major storms without flooding and without leaving ice or other residues on roadways and which are designed so that the volume and rate of runoff and/or erosion are not greater after, or during, the installation of the subdivision than previously.
(1)
Capacity. Drainage design shall be adequate, in the judgment of the
Planning Board, for handling the watershed peak discharge of a twenty-five-year
storm (one-hundred-year storm for bridges and culverts along natural
watercourses) during and after the completion of all improvements
within the subdivision, and within potential additional subdivisions
that may lie hydraulically uphill, and shall include control of erosion,
flooding, and ponding of runoff, as well as accepting effluence from
street subdrains and other water table modification or control within
the subdivision. (Town driveway connection regulations[3] prohibit the discharge of runoff and erosion products
into the roadway; drainage design shall include means satisfactory
to the Planning Board of dealing with such potential problems from
individual lots, including restrictions limiting construction methods
used in installing driveways.) The Board may require a more intense
design storm where it deems more protection is needed or for areas
not economically susceptible to future relief. Design watershed discharge
shall be at least that of the rational formula Q = ACi (Seelye, Data
Book for Civil Engineers, Third Edition, 1957, Wiley), where:
|
Q =
|
Watershed peak discharge
|
|
A =
|
Watershed area
|
|
C =
|
Coefficient of runoff
|
|
i =
|
Rainfall intensity based on time of concentration
|
(2)
Connections and easements. Connection shall be provided to appropriate
existing drainage systems, and proper drains and easements shall be
continued at such size and grade as will allow for appropriate projection
of the drainage system. Adequate drainage rights in the subdivision
and on neighboring property shall be procured. Streams and other watercourses
shall have easements conforming substantially to the course and in
no case less than 20 feet wide or extending less than 10 feet from
the edge of any stream.
(3)
Storm sewers.
(a)
No surface water shall be carried across the roadway, or along
the surface of the street for more than 300 feet. Basins shall be
provided on each side of the street at low points in the roadway,
near the corners of the roadway at intersecting streets, including
intersections with existing streets, and in any case at intervals < 300 feet. Manholes shall be provided at changes
of vertical or horizontal alignment or size of drain pipe, and in
any case at intervals < 300 feet. Gutters
shall be provided for grades > 3%, within 20
feet of a basin, and otherwise as required by the Board. Leaching
basins or swales without exit will not be considered adequate disposal
of water.
(b)
Pipes, manholes, catch basins, junctions, and other components
used in constructing the drainage system shall be of a consistent
and compatible manufacture throughout the subdivision, so as to require
a minimal subsequent stockpile of spare parts for repairs and revisions.
I.
Footpaths. Footpaths shall be provided. Footpath width shall be > four feet. The path shall be located > two feet from the edge of any embankment, > one foot outside the shoulder, and have horizontal clearance > 2.5 feet on each side of the center line, with grades
and curvatures suitable for pedestrian and bicycle use and for maintenance.
The course of such a path shall be adjusted to preserve stone walls,
suitable trees, and other features. The Board may permit the roadway
center line to be located two feet off the street center line where
a footpath is being provided on only one side of a minor street. The
path may leave the street; an easement > 10 feet in width on either side of the path center line shall be provided. Where such a footpath crosses a roadway, there shall be visible guides of paving stone or other means specified by the Planning Board to show the crossing. (See also § 130-25D, Footpaths.)
J.
Traffic guides. Curbing and traffic islands or other traffic guides
may be required by the Planning Board. Turnarounds shall be marked
for one-way traffic.
K.
Trees. Suitable existing trees < 12 feet
high outside the shoulders shall be preserved. Where suitable trees
do not exist at intervals < 50 feet on each side of the street they shall be provided. (See also § 130-25E, Trees.)
A.
Fire ponds or cisterns required. Fire ponds or cisterns of equivalent
capacity shall be provided for fire protection, so that every part
of every street in the subdivision is within 3,600 hose feet, along
streets, of a satisfactory fire pond or cistern. Where, in the judgment
of the Planning Board, the terrain or the uses to which the buildings
will be put so require, the Board may require a more intense design.
Fire ponds and cisterns shall be independent of one another in drawdown,
so that the complete emptying of any one in use results in no more
than a ten-percent drawdown of any other storage supply of water usable
for fire fighting. Suitable access and easements to fire ponds and
cisterns and their sources of recharge water shall be provided. If
desired, such areas may be deeded to the Town or may be held by a
qualified homeowners' association as for parks above.
C.
Pedestrianways other than streetside footpaths. Pedestrianways or
other access may be required by the Planning Board to provide suitable
circulation or access to schools, playgrounds, parks, conservation
areas, shopping, or other facilities. Off-street rights-of-way shall
be > 20 feet wide.
(See also § 130-23, Street design, above.)
A.
Roadway subgrade, base and surface.
(1)
The entire width of the roadway and shoulder areas shall have been
cleared and grubbed (SSHBW § 101, Clearing and Grubbing).
All existing material shall be excavated to at least subgrade level
of > 14 1/2 inches below finished grade
(SSHBW § 120, Excavation) over the entire width of the gravel
base, all soft or spongy material removed, and the subgrade prepared
(SSHBW § 150, Embankment, and § 170, Subgrade).
Subsurface drainage shall be used in shoulders or embankments to collect
seepage or springs that may be opened in construction and generally
to control groundwater level at the roadway; construction cloth shall
be used where necessary to prevent the infiltration of sediment into
the rock packing surrounding such subdrains. Drains, culverts, basins,
manholes, and other underground utilities in and adjacent to the subgrade
shall be installed before the finished subgrade is prepared.
(2)
The basic gravel base shall extend > two feet
beyond the roadway on each side, with an additional two feet on the
inside of a roadway of center-line radius < 150 feet.
(3)
The roadway surface shall have a crown of four inches and be paved
(SSHBW § 460, Class I Bituminous Concrete Pavement, Type
I-1) > 2 1/2 inches thick over a gravel
base (SSHBW, § 405, Gravel Base Course) > 12 inches thick. Paving shall consist of a binder course > 1 1/2 inches compacted measure followed by a finish
course > one inch compacted measure. The gravel
base shall be spread in layers < four inches,
compacted measure, of gravel per SSHBW M 1.03.0 (Type b) (maximum
size of stone, three inches largest dimension) and shall be penetrated
with bituminous liquid asphalt, once the roadway is prepared to accept
it, as follows: Bitumen M.C. 70 shall be applied at a temperature
of 250° F. to 275° F. at the rate of 1/2 gallon per square
yard, 24 feet wide, for the full length of the roadway. The roadway
shall then be barricaded and not used for 24 to 48 hours. Application
shall take place only when the roadway, weather, and temperature are,
in the opinion of the Subdivision Inspector, favorable for a satisfactory
result. Sand will not be used to absorb surplus bitumen, unless the
Subdivision Inspector so directs.
B.
Shoulders and guardrails.
(1)
Shoulders (SSHBW § 445, Shoulders) over the gravel base
shall be brought to finished grade with gravel; shoulders elsewhere,
banks, and other areas disturbed by construction shall have at least
four inches of loam, rolled measure, and be seeded or provided with
other permanent ground cover planting approved by the Planning Board.
(2)
Guardrails shall be of the steel-beam type, galvanized (SSHBW § 601,
Highway Guard). Post spacing shall be < 11 1/2
feet. Alternatively, the Board may permit the use of suitable wooden
posts, set < eight feet on centers with steel cables and fittings in accordance with New Hampshire Standard Specifications for Road and Bridge Construction (1974), Section 6.06, Guard Rail, including Subsections 2.1, 2.2 and 2.7. A transition section, including cable anchors where cables are used, shall be provided sloping upward from near ground level and funneling inward for approaching traffic. (See also § 130-23F above.)
C.
Drainage. Drainage (SSHBW § 230, Culverts, Storm Drains
and Sewer Pipes) pipes for surface water shall be > 12 inches in diameter and shall have > two
feet of cover for reinforced concrete pipe and > three feet otherwise. Such pipes shall be of reinforced concrete or ACCM (asphalt-coated corrugated metal). Basins, manholes and inlets shall be in accordance with SSHBW § 201, Basins, Manholes and Inlets; however, the outside of block structures shall be plastered. (See also § 130-23H above.)
D.
Footpaths. Footpaths shall be constructed in accordance with SSHBW
§ 701, Sidewalks. The gravel foundation uses the same gravel
[SSHBW M 1.03.0 (Type b)] as the gravel base for the roadway. The
path surface shall be either:
(1)
Bituminous concrete per SSHBW, except that a surface layer of stone
screenings (SSHBW M 2.03.0) shall be spread over the paving surface
prior to the final rolling of the finish course; or
E.
Trees. Trees shall be of varying species approved by the Planning Board. Trees shall be planted in at least 1/2 cubic yard of loam and shall be properly wrapped and guyed to ensure survival. (See also § 130-23K above.)
F.
Bounds. Bounds shall be embedded > 3 1/2 feet below, and extend 1/2 foot above, finished grade (SSHBW § 710, Bounds). At grade in sound ledge, bounds shall be marked by exposing fresh sound rock with a horizontal surface at least six inches square and using a drill hole 1/2 inch in diameter and one inch to two inches deep. (See also §§ 130-23M and 130-24B.)
G.
Street signs. Street signs shall be similar to those used by the Town and be approved by the Highway Superintendent. Each intersecting street shall be identified by a separate sign on the post, and dead-end streets shall be so identified prominently. When applicable, a separate sign(s) reading "Not an Accepted Way of the Town of Harvard" shall also be provided on the same post. (See also § 130-23L above.)
H.
Seasonal construction prohibition. In general, no construction shall
be done during unfavorable seasonal or weather conditions. In particular,
paving is not permitted below 40° F. or between November 15 and
April 1, and embankment (with other than rock) and subgrade preparation
are not permitted in frozen material or between December 1 and April
1 (SSHBW §§ 150, 170 and 460).
I.
Cleanup. Upon completion of the work, the subdivider shall remove
from the street and adjoining property all rubbish, surplus material,
and temporary structures and leave the area in a neat, orderly condition,
free from holes or other unusual hazards.
It is the intent to provide fire ponds or cisterns of equivalent capacity that will meet the fifty-year-drought guidelines of organizations which rate local fire protection facilities for static bodies of water for fire protection and, except where more stringent standards or greater capacity is called for by this chapter, the guidelines of the National Fire Protection Association (NFPA) and the United States Soil Conservation Service (USSCS), in particular, the following: NFPA Standard 1231 (Suburban and Rural Water Supplies 1975), Chapter 4 and Table 13-5-1 of Appendix B; NFPA Standard 1 (National Fire Prevention Code 1975), Section 3-1.1.10 (Required Access for Fire Apparatus); United States Department of Agriculture Handbook No. 387 (Ponds for Water Supply and Recreation); and USSCS Information Sheets MA16 (October 1976, Ponds for Fire Protection) and RTSC-NE-ENG 606 (Non-Pressure Fire Hydrant). Fire ponds and their access shall conform to the following:
A.
Construction and drawdown.
(1)
A satisfactory fire pond shall have a normal available drawdown of at least 60,000 gallons over a two-hour period at any time of year (30,000 gallons over a two-hour period during the fifty-year drought). Such a fire pond shall have a storage capacity of at least 60,000 gallons (8,000 cubic feet) between two feet below mean annual low water and 1.5 feet above the pond bottom. The Board may require greater capacity in accordance with NFPA 1231, Chapter 4 (1975 Edition) for major buildings, or for industrial, commercial, institutional or multiple-residence use, or on the basis of the size and type of buildings that it expects to be constructed. The pond shall generally conform to USSCS MA16. It shall be at least eight feet deep and have a flat bottom with an area at least 25% of the nominal surface area and side-slope grades not exceeding 1:3 in soil (except as may be required for direct suction hose access). Side slopes shall be stabilized with riprap if they exhibit weepage or movement during construction. The pond shall be located if possible where it receives maximum recharge and cleaning action from natural flow and be connected with a nearby stream if necessary. Pond depth and recharge shall be such that no less than half the above capacities and drawdown rate will be available throughout the year of the fifty-year drought.
(2)
If the fire pond is not located on, or adjacent to, a flowing stream,
the applicant shall furnish, at his expense, proof that the pond or
cistern when built will be able to furnish 30,000 gallons at a drawdown
of 250 gallons per minute by means of the accesses provided on any
day of the year during the fifty-year drought.
(3)
If there is no suitable location or recharge for a fire pond, the
applicant shall provide a cistern of equivalent capacity and access
and the means for keeping it full when not in use. Such cisterns shall
not be used for drinking water and shall be equipped with means to
prevent unauthorized emptying.
B.
Access.
(1)
The fire pond shall have an off-the-roadway access to a dry hydrant
and suction hose insertion where an American Association of State
Highway Officials (AASHO) SU30 single-unit truck may be parked and
turned around without interfering with the flow of traffic. A simple
roadside turnout that can be kept clear by routine snowplowing during
winter is preferred over more complicated arrangements.
(2)
The entire length of any driveway between the roadway and the access
to a fire pond shall be constructed for use as a fire lane (NFPA 1,
Section 3-1.1.10) to a width of at least 20 feet and shall have:
(a)
No overhanging branches to a height of 15 feet; and
(b)
All-weather base and all-weather finish to sustain use by 16,000
pounds per axle, with base and subbase meeting subdivision roadway
standards; and
(c)
Drainage of the finished driveway and its base, using culverts
at least 12 inches in diameter ACCM construction; and
(d)
Sustained grades not to exceed 8% (NFPA Standard 1231, Appendix
B).
C.
Dry hydrant. Access to the pond and its water shall include a dry
hydrant designed and installed with six-inch pipe in accordance with
USSCS MA16 and RTSC-NE-ENG-606, except that the hydrant itself shall
be of the type normally used on street water mains so that it can
be backflushed by the connection of an additional hose. The inlet
shall be at the deepest part of the pond and shall be supported 1 1/2
feet above it and be equipped with a trash screen, approved by the
Board, of at least eight inches in diameter and 18 inches in length.
D.
Fence. The fire pond shall be surrounded by a so-called nonclimable
fence that meets the requirements of the Harvard Swimming Pool Bylaw[1] but through which all parts of the pond are visible. It
shall have a gate near the dry hydrant which can be used for suction
hose and maintenance access.
[1]
Editor's Note: The Swimming Pool Bylaw was excluded from the
Code at the direction of the Town.
E.
Restrictions and easements.
(1)
The entire access from the roadway to the fire pond shall be designated
a fire lane for a distance of 10 feet on either side of the center-line
fire lane of any access driveway that may be provided. This fire lane
shall not be used for parking or obstructed in any other way.
(2)
If the access to the fire pond lies wholly or partly along a shared
driveway, the provision for driveway maintenance and snow removal
shall include the following:
(3)
There shall be an easement to the Town of Harvard to make use of
the access and to use and maintain the fire pond and fire lane.
(4)
The Planning Board may require as a condition endorsed on the definitive plan (SCL § 81R) that no buildings be erected, and/or as a condition on the covenant for release of lots, that no lots be released until the fire pond(s) is actually built. For other than single- or two-family dwelling uses, the Planning Board may also endorse on the plan limitations on the volume of any building to be erected, on the basis of the actual supply of fire-fighting water and the quantities and pumping rates for a given size and class of building as set forth in NFPA 1231, Chapter 4 (1975 Edition).
After completion of all improvements, the subdivider shall be
responsible for maintenance to these standards until the street has
been accepted by the Town or acceptance has been refused on its merits
at an Annual Town Meeting.
