B.
When approved by the Superintendent and Planning Board,
asphalt curbing may be used with a minimum three-foot width of backfill
on the road shoulder.
C.
Where required by the Superintendent, porous tile
or, perforated PVC with a minimum diameter of four inches shall be
laid in coarse washed sand under all curbs as shown on Figure I 1,
Appendix B.[2] This underdrain shall be so graded that any water under
the curbs will drain to the nearest catch basin where the underdrain
shall be connected as shown on Figure 9a.[3]
D.
Concrete shall be finished and cured to the satisfaction
of the Town Superintendent of Highways. The developer shall, at his/her
own expense, replace any curbing damaged before dedication.
E.
Curbs may be of a mountable or nonmountable type.
Curbs on medians, inside shoulder edges or on a channelizing island
can be of a nonmountable type.
F.
Ramps for the handicapped, required by Highway Law,
§ 330, shall be provided at each curbed intersection and
mid-block crosswalk where curbs are constructed. Ramps at intersections
shall be constructed in accordance with Figures 12a and 12b, Appendix
B, and the specifications for sidewalks.[4] Ramps at mid-block locations shall be constructed in a
similar manner.
[4]
Editor's Note: Said figures are on file in
the Town Clerk's office.
A.
The general guidelines for determining the granting
of a curb waiver are shown below:
(1)
Drainage: to alleviate any flooding or drainage issue
caused by development, grading, etc. [e.g., where existing cross-sectional
slopes greater than 30% exist].
(2)
Aesthetics: to allow the roadway to conform to the
symmetry of a given district and/or to blend with existing topography.
(3)
Road maintenance: to ease/mitigate upkeep of the roadway.
(4)
Existing condition: when an extension of an existing roadway would mandate an upgrade of the entire existing roadway, thus causing a conflict in monetary or aesthetic value [see Subsection A(2) above] to the Town.
(5)
Extreme condition: when an abnormality exists that
does not meet the above determining criteria. This abnormal condition
shall be submitted in writing to the Superintendent, Planning Board
and Engineer to the Town and shall include the location, amount and
reasoning for the abnormality.
B.
When and if the developer requests a curbing waiver,
the developer must rough grade the proposed road following preliminary
subdivision approval, at which time a site inspection by the Superintendent,
Planning Board and Town Engineer would be arranged in the field to
determine the necessity of curbs. Following the site inspection, if
the Planning Board and Superintendent are in agreement that curbs
are not necessary for the individual proposal, the Planning Board,
as part of the subdivision approval, may grant a waiver from the requirement
of curbs. If a waiver is granted, the road section shall conform to
Figure 1.[1]
[1]
Editor's Note: Said figure is on file in the
Town Clerk's office.
B.
Cement concrete sidewalks shall be four inches thick
and shall be of 1:2:3 mix with air entrainment of 6% by volume. Cement
concrete sidewalks shall be reinforced with 6x6-W2.9/W2.9 welded wire
fabric placed two inches from the bottom of the slab and shall be
poured in one course, vibrated, properly screeded, finished to true
grade and cured.
C.
Asphalt concrete sidewalks may be constructed only
in residential areas. Bituminous material shall meet the requirement
of Type IAC or IACF of Section 401 of the current New York State Department
of Transportation Standard Specifications. Compacted thickness of
asphalt concrete shall be a minimum of 2 1/2 inches.
D.
All sidewalks shall be constructed on a base of approved
gravel or crushed stone of at least four inches' depth. Sidewalks
shall be constructed with a transverse slope of 1/4 inch per foot
toward the traveled way, except that the slope may be away from the
traveled way if the runoff will not effect adjacent properties. The
longitudinal slope of a sidewalk shall not exceed 10%.
E.
Where vehicular traffic is anticipated to cross an
area of sidewalk, the following specifications shall apply:
(1)
Cement concrete sidewalks shall be six inches thick
and shall be mixed, reinforced and placed in accordance with the specifications
above.
(2)
Asphalt concrete shall consist of a three-inch binder
course and a one-and-one-half-inch wearing course to be constructed
in accordance with the specifications for streets, except that the
specification for the size and type of roller shall not apply.
B.
Unobstructed stop-line distance shall follow the Dutchess
County Department of Public Works vehicle sight distance standards
until a required maximum of 400 feet is reached for both approaches
along the highway at the roads entrance.
C.
Stop-line sight distance shall be measured from a
point on the center line of the approaching lane of the minor road
or driveway 12 feet behind the projected edge of roadway of the major
road to a point on the center line of the approaching lane of the
major road. The height of eye and height of object shall both be assumed
to be 44 inches above the road pavement. Each approach to the intersection
shall be considered separately.
D.
Unless otherwise approved or exempted by the Superintendent,
all intersection grades shall be of a negative -1 1/2% to a positive
+1 1/2%.
Minimum horizontal curve radii shall be consistent
with a thirty-mile-per-hour design speed. Waivers from this shall
only be granted following preliminary approval when the proposed road
has been rough graded and inspected/reviewed in the field by the Town
Engineer. Any substandard curves that are accepted shall be required
to be posted with yellow signs by the Town Engineer.
All sight easement areas are to remain free
of any man-made or natural objects that would prohibit a free line
of sight of 300 feet to 400 feet measured along the center line of
the road. There shall be no plantings, fences or other objects within
this easement that exceed two feet in height. Easements shall be cleared
prior to the issuance of building permits for new subdivision lots,
while existing lots may have their sight easements cleared after a
building permit has been issued but prior to a certificate of occupancy.
Sight easements shall be topsoiled, seeded and mulched.
The developer shall furnish and install a four-way
road name sign at every road intersection made by the roads he/she
constructs. Signs and posts shall conform to the standards established
by the Manual of Uniform Traffic Control Devices of New York State
(See Figure 16.[1])
[1]
Editor's Note: Said figure is on file in the
Town Clerk's office.
A.
Monuments shall be set on all right-of-way lines of
a highway at all highway intersections, angle points, points of curve
and subdivision corners.
B.
Monuments shall be a minimum of 36 inches long and
five inches square at the top and shall have centered in the top a
three-eighths-inch or one-half-inch drill hole, a three-eighths-inch
or one-half-inch steel rod slightly protruding or some other permanent
and satisfactory center mark. Monuments shall be of cut granite free
from imperfections or of concrete as shown on Figure 17.[1]
[1]
Editor's Note: Said figure is on file in the
Town Clerk's office.
C.
Monuments shall not be set until the roadway has been
completed nor shall they be set while frost is in the ground. They
shall be so set and tamped as to prevent settlement or shifting.
D.
The developer's licensed land surveyor shall certify
that the location of all monuments is accurate before acceptance of
the highway by the Town Board.
A.
The type and need for guide rail installation shall
be approved by the Town Superintendent of Highways. General guidelines
for determining the need for guide rails are shown below:
(1)
The height of the drop-off is measured from the break
of the road to the toe of the slope. Slopes less than one on two with
a height of drop-off more than four feet will require guide rail installation.
Slopes of one on two having a height of drop-off more than 10 feet
will be protected with guide rails..
B.
Guide rail installation shall be in accordance with
Sections 710-20, Corrugated Beam Guide Railing, and 710-22, Box Beam
Guide Railing, of the current New York State Department of Transportation
Standard Specifications. (See Figures 18a, 18b and 19, Appendix B[1])
[1]
Editor's Note: Said figures are on file in
the Town Clerk's office.
All signs, signals, markings and other control
devices for the maintenance and protection of traffic must conform
to the requirements of the Manual of Uniform Traffic Control Devices
of New York State and shall be installed by the developer where directed
by the Town.
Roof and cellar drains shall in no case be allowed
to flow onto the highway right-of-way. With the approval of the Town
Superintendent of Highways and Town Engineer, in writing, these drains
may be piped to the roadway stormwater pipe drain, to which they shall
be connected on top only. Such drains must be installed prior to the
start of fine grading of the roadway.
A.
Wherever a temporary or permanent dead end is allowed
on a subdivision highway, a turnaround shall be constructed. This
turnaround shall take the form of a circle as required by the Town
Planning Board and shall be constructed as shown on Figure 20.[1]
[1]
Editor's Note: Said figure is on file in the
Town Clerk's office.
B.
If curbs and/or sidewalks are planned, the radius
of the right-of-way shall be increased to accommodate the additional
width.
C.
No medians shall be allowed on any culs-de-sac.
