The developer shall establish and clearly mark
on site the limits of highway right-of-way and easements, the center
line and grades of the road pavement and the location and elevation
of drainage and drainage structures in accordance with the approved
plans. Such markers shall be maintained at the developer's expense
until the construction of all required improvements within the right-of-way
limits have been completed, inspected and approved by the Town Superintendent
of Highways.
A.
The developer shall complete the shaping of the highway
right-of-way, streams and ditches and easement areas to the line and
grade as shown on the approved plan and as otherwise may be directed
by the Town Superintendent of Highways. All unsuitable or unstable
materials shall be completely excavated and removed from the right-of-way,
and all rock or boulders larger than six inches in diameter shall
be excavated at least eight inches below the finished subgrade of
road pavement, drainage or drainage structures, curbs and sidewalks.
B.
Where fills are necessary to complete the required
line and grade or to backfill trenches or other excavation, the materials
incorporated in the work shall be acceptable to the Town Superintendent
of Highways and shall be placed in layers not exceeding eight inches
in depth, each layer to be thoroughly compacted by rolling with a
three-wheel, sheepsfoot, pneumatic tired or padded-wheel roller or
by impact rammer or vibrator equipment in areas inaccessible to power
rollers. All compaction shall continue until the fills are firm and
unyielding. Special care shall be exercised in placing and compacting
material immediately adjacent to pipes in order to avoid damage to
the pipe and to prevent pipe misalignment.
C.
The areas between the road shoulder edge or curbing
and the right-of-way line must be graded and seeded in order to prevent
erosion.
D.
The rough grade of the road pavement, curb and sidewalk
areas shall be completed to within one inch above or below the finished
subgrade as shown on the approved cross section of the right-of-way
improvement.
E.
When rough grading is completed, utilities shall be
placed in the shoulders of the new subdivision road at a minimum depth
of 36 inches. "Utilities" are defined as electric, gas, telephone
and cable.
F.
Earth shoulders and flow lines of ditches and gutters
shall be maintained in satisfactory condition at the developer's expense
at all times during the course of construction of the subdivision
and until such time as the Town Board has accepted dedication of the
right-of-way.
A.
The width of the trench in which the pipe is placed
shall be sufficient to permit thorough tamping of the backfill under
the haunches and around the pipe. Where rock, in either boulder or
ledge formation, is encountered, it shall be removed below grade and
replaced with suitable materials as specified herein, in such a manner
as to provide an earth cushion having a thickness under the pipe of
not less than eight inches, and where there are excessively heavy
fills over the top of the pipe. In no case shall the top of any drainage
pipe be less than 18 inches below the finished grade of the pavement.
Where soft, spongy or other unstable soil is encountered at the grade
established, all such unstable soil under the pipe and for a width
of one diameter on each side of the pipe shall be removed and replaced
with run-of-bank gravel or other acceptable material as specified
herein. In all cases, the bed shall be thoroughly compacted and shall
provide a firm foundation for the pipe.
B.
Pipe shall be laid to a true line and grade on the
prepared bed of the trench. Pipe laying shall begin at the downstream
end and progress upstream.
C.
Backfilling of trenches shall be done in accordance with the subsection on fills under the above heading of § 79-15, Excavations; filling and grading.
D.
Any additional drainage facilities not shown on the
approved plan and which may be ordered by the Town Superintendent
of Highways shall be constructed by the developer at the developer's
expense and in accordance with these specifications.
E.
All drainage pipes shall be embedded in a coarse aggregate
material, as defined in the New York State Department of Transportation
Standard Specifications, as Material Types 703-0201 or 703-0202 and
further defined as Sizes Screenings 1A or 1B, to 12 inches above the
overt (top of pipe).
A.
It is the intent of this specification that all areas
disturbed by highway construction and placement of utilities shall
be restored to conditions acceptable to the Town.
B.
The removal of all equipment and parts, junk, rubbish,
excess material, debris of all kind and trees damaged beyond repair
shall be included in the restoration work.
C.
All unpaved areas and newly created or stripped earth
slopes shall be seeded in accordance with Section 610-3.02 of the
current New York State Department of Transportation Standard Specifications.
D.
In order to control soil erosion, sodding shall be
placed on areas designated by the Town Superintendent of Highways
in accordance with Section 612-3.01 of the current New York State
Department of Transportation Standard Specifications.
A.
Highways shall be so constructed that finished tangent
grades will not be less than 1.0% nor more than 10.0%.
B.
Every change in grade shall be effected with a vertical
curve of sufficient length to ensure adequate stopping sight distance
and to provide for smooth transition. These vertical curves shall
be constructed in accordance with Figures 5 and 6 of Appendix B of
these specifications.[1]
[1]
Editor's Note: Appendix B is on file in the
Town Clerk's office.
