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 clear the entire area within the limits of:
(1) 
The highway right-of-way, exclusive of trees designated by the Town to remain.
(2) 
Stream channels and ditches.
(3) 
Easement areas.
B. 
All roots and stumps shall be grubbed, excavated and removed from the above areas.
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 plans and as otherwise may be directed by the Town Superintendent of Highways. All unsuitable or unstable material 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 excavations, 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, sheep's-foot, pneumatic-tired or padded-wheel roller or by impact rammer or vibrator equipment in areas inaccessible to power rollers.
C. 
All compacting shall continue until the fills are firm and unyielding. Special care shall be exercised immediately adjacent to pipes in order to avoid damage to the pipe and to prevent pipe misalignment.
D. 
The areas between the road shoulder or curbing and right-of-way line must be graded and seeded in order to prevent erosion.
E. 
The rough grade of the road pavement, curb and sidewalk areas shall be completed within one inch above or below finished subgrade as shown on the approved cross section of the right-of-way improvement.
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 to below grade and replaced with suitable materials 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, the Town Superintendent of Highways may specify that a sand cushion up to 1/2 inch in thickness per foot of fill be placed 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 (ROB) gravel or other acceptable material. 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. Pipelaying 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 § 152-12, Excavation, filling and rough grade.
D. 
Any additional drainage facilities not shown on the approved plans and which may be ordered by the Town Superintendent of Highways shall be constructed by the developer at the developer's expense in accordance with these specifications and included on the as-built drawings.
A. 
It is the intent of this specification that all disturbed areas within the right-of-way due to 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 kinds and trees damaged beyond repair shall be included in the restoration work.
C. 
All unpaved areas within the rights-of-way and newly created or stripped earth slopes shall be seeded in accordance with Section 610-3.02 of the current Standard Specifications of the New York State Department of Transportation.
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 Standard Specifications of the New York State Department of Transportation.
A. 
Highways shall be so designed that finished tangent grades will not be less than 1.0% nor more than 8.0%.
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 designed in accordance with the graph shown on Figures 4 and 4A of these specifications.[1]
[1]
Editor's Note: The figures are included at the end of this chapter.