The construction of Town highways shall conform to the design requirements of Article IV of this chapter and the latest revision of the NYSDOT Standard Specifications, including any NYSDOT Engineering Instructions or Bulletins, as well as the sections within this article unless alternatives are approved by the Town Highway Superintendent, in writing, in advance.
The applicant shall provide permanent and temporary erosion
control measures to minimize erosion and sedimentation during and
after construction according to approved erosion and sediment control
plans. The applicant shall not modify the type, size, or location
of any control or practice without approval from the authority having
jurisdiction.
The applicant shall provide permanent and temporary stormwater
management measures to minimize stormwater-related concerns during
and after construction according to approved stormwater management
plan. The applicant shall not modify the type, size, or location of
any control or practice without approval from the authority having
jurisdiction.
The width of the subgrade shall be equal to the width of the
aggregate base. The elevation of the subgrade is determined by the
approved design drawings and details.
Perforated underdrain pipe, wrapped in geotextile drainage fabric
or approved backfill material, may be required by the Town Highway
Superintendent where side hill seepage is encountered or in any other
area where groundwater will impair the integrity of the Town highway.
After the subgrade has been approved, all utilities designed
to be installed within the highway's right-of-way shall be installed
in accordance with the specifications of the authority having jurisdiction.
All utilities shall be installed prior to the installation of the
aggregate base and HMA unless approved otherwise by the Town Highway
Superintendent.
Geotextile stabilization fabric is required under the aggregate
base. This requirement may be waived by the Town Highway Superintendent
if such base is built on solid rock or similar geological formations.
The waiver must be obtained in writing prior to proceeding with work.
A.Â
The aggregate base shall be at least 18 inches compacted depth. The
material used shall be NYSDOT Spec 667 Type B.
B.Â
The aggregate base shall cover the entire area of the subgrade.
C.Â
A thicker aggregate base may be required for special conditions,
including but not limited to high traffic volume and/or poor subgrade
conditions.
D.Â
The aggregate base shall be installed in lifts not to exceed six
inches.
E.Â
Once the aggregate base has been placed, no vehicular traffic shall
be permitted until such time that the HMA has been placed unless approved
otherwise by the Town Highway Superintendent.
A.Â
The overall depth of the HMA layer shall not be less than four inches
unless approved in advance by the Town Highway Superintendent. All
HMA materials shall be placed in accordance with the most current
NYSDOT specifications.