The design, material and construction methods
shall conform to the applicable sections of the current editions and
subsequent revisions of the following documents. These documents may
be reviewed in the office of the Town Planning Board.
A.
A Policy on Geometric Design of Highways and Streets,
American Association of State Highway and Transportation Officials
(AASHTO).
B.
Guide For Design of Pavement Structures, AASHTO.
C.
Highway Design Manual, New York State Department of
Transportation (NYSDOT) Facilities Design Subdivision.
D.
Manual of Uniform Traffic Control Devices, NYSDOT
Traffic and Safety Division.
E.
Standard Specifications for Highway Bridges, AASHTO.
F.
Standard Specifications (Construction and Materials),
NYSDOT Office of Engineering.
A.
Certification of materials used for road subbase,
pavement, drainage structures and/or surface treatment and appurtenances
shall be submitted.
B.
When requested, tests shall be made to determine the
suitability of the subgrade material to support foundation course(s)
and pavement.
C.
Compaction tests shall be made of embankment sections
and the subbase course at the interval specified in the quality assurance
plan but not fewer than one per every 500 feet of constructed road
for each course of material.
Prior to construction, necessary approvals shall
be obtained from the appropriate agency having jurisdiction (NYSDOT,
the Rensselaer County Highway Department and/or the Town Highway Department)
for:
A.
Minimum and maximum design values.
(1)
Minimum and maximum design values shall be as follows:
|
Item
|
Local Access Only
|
Local Through
|
Collector
|
|---|---|---|---|
|
Minimum right-of-way (feet)
|
60
|
60
|
60
|
|
Minimum pavement width (feet)
|
30
|
30
|
30
|
|
Minimum grade (percent)
|
1
|
1
|
1
|
|
Maximum grade (percent)
|
8
|
8
|
6
|
|
Minimum tangent section between curves (feet)
|
100
|
100
|
150
|
|
Minimum horizontal curve (feet)
|
200
|
250
|
400
|
|
Minimum vertical curve (feet)
|
100
|
150
|
200
|
|
Design speed (mph)
|
30
|
30
|
45
|
(2)
All roads shall be designed in accordance with the requirements set forth in § 188-40, Applicable standards.
(3)
For the design values listed in the above table, the
more stringent standards shall apply.
B.
Dead-end streets. Culs-de-sac or other approved turnarounds
shall be provided at all temporary and permanent dead-end streets.
Culs-de-sac shall have a minimum pavement radius of 50 feet to the
outside edge and a minimum radius of 60 feet to the right-of-way.
C.
Minimum turning paths. Streets, parking areas and
access roads shall be designed to accommodate the minimum turning
path of an American Association of State Highway and Transportation
Officials (AASHTO) bus design vehicle.
D.
Intersections.
(1)
Intersection offset distances shall be not less than
150 feet. Greater distances shall be maintained on collector and arterial
roads.
(2)
Intersections shall be at approximate right angles
for the first 100 feet, but in no case shall the angle of the intersection
be less than 75°.
(3)
Intersection grades shall not exceed 3% in the first
50 feet.
A.
Monuments. Monuments shall be granite stone or reinforced
concrete, four inches by four inches by four feet long.
C.
General fill for embankments.
I.
Traffic control devices.
J.
Street trees. Street trees shall be two-and-one-fourth-inch
caliper deciduous trees, species as approved, NYSDOT Section 713-06.
K.
Landscaping.
L.
Utilities. Materials for gas, electric, telephone,
television cable and other utilities shall meet the requirements of
the utilities having jurisdiction.
A.
Construction stakeout.
(1)
A licensed surveyor shall provide stakeout of the
following items prior to construction:
(a)
The road center line and the edge of the right-of-way
at a minimum of one-hundred-foot stations on tangent sections.
(b)
All beginnings and ends of curves and at fifty-foot
stations along the curves.
(c)
The top of bank and toe of bank in cut or fill
sections.
(d)
The limits of construction where different from
the road right-of-way.
(2)
Sufficient vertical and horizontal control outside
of the work area shall be maintained to check and reestablish stakeout
as necessary.
C.
Subgrade preparation.
(1)
Topsoil under the street section and under all embankment
areas shall be removed.
(2)
The subgrade and embankment foundation areas shall
be free of all stumps, organic material, boulders, soft clay and other
objectionable material.
(3)
The full depth of unsuitable material shall be removed
and replaced with approved compacted fill. Do not use frozen fill
or fill on frozen subgrade.
(4)
Subgrade shall be compacted to 95% standard proctor
density.
(5)
Approved embankment fill shall be placed in eight-inch
lifts and compacted to 95% standard proctor density.
(6)
Any other excavation shall be filled with approved
fill material and compacted to 95% standard proctor density.
D.
Subbase course.
(1)
The subbase course shall be placed and compacted in
accordance with NYSDOT Section 304. The minimum subbase section shall
be eight inches of Item 304.04, Type 3, and four inches of Item 304.05,
Type 4.
(2)
The tolerance of the subbase course shall be 1/2 inch
from required elevations.
(3)
The minimum thickness of gravel subbase shall be increased
for poorer subgrades depending on the AASHTO soil group classification,
as follows:
(4)
Soil stabilization fabric will be required over subgrades
of AASHTO Groups A-4, A-5, A-6 and A-7.
(5)
Alternate pavement structures designated in accordance
with the AASHTO Guide for Design of Pavement Structures will be considered
for approval and shall be used for special circumstances such as nonresidential
developments or high-volume streets. In no case shall the proposed
subbase and pavement be less than the above minimums.
F.
Alternate surface treatment (when approved). All double-course
oil and stone shall be placed in accordance with NYSDOT Section 410.
G.
Curbs.
(1)
Finished pavement adjacent to concrete or stone under
curb shall be cleaned and tack-coated.
(2)
Asphalt concrete curb shall be machine-placed to line
and grade.
(3)
Asphalt concrete curb shall be laid on the base course
and keyed in with the top course.
(4)
Concrete curbs, where required, shall be placed in
accordance with NYSDOT Section 609-3.03.
H.
Sidewalks.
(1)
Subbase. A six-inch-thick subbase course of Type 4
gravel shall be placed and compacted in accordance with NYSDOT Section
304.
(2)
Concrete sidewalks. Four-inch-thick concrete sidewalks
shall be placed in accordance with NYSDOT Section 608-3.01.
(3)
Asphalt concrete sidewalks. Two-inch asphalt concrete
sidewalks shall be placed and compacted in accordance with NYSDOT
Section 608-3.02.
I.
Guiderailing. Guiderails shall be installed on all
sections of road with embankments greater than six feet high which
have side slopes steeper than four horizontal to one vertical and
along sections of road adjacent to bodies of water which are greater
than two feet deep. They shall be installed in accordance with NYSDOT
Section 606.
J.
Traffic control devices.
(1)
Construction of traffic control devices shall be in
accordance with applicable NYSDOT Sections 645, 646 and 680.
(2)
Street signs shall be placed at all street intersections.
(3)
Regulatory signs, warning signs and signals shall
be placed in accordance with the NYSDOT Manual of Uniform Traffic
Control Devices (MUTCD).
(4)
Delineators, placed in accordance with NYSDOT MUTCD,
may be required as directed by the Town Engineer.
(5)
Snowplow markers shall be placed at guiderails and
culverts and where directed by the Town Engineer.
M.
Turf establishment.
N.
Utilities.
(1)
Gas, electric, telephone, television cable and other
utilities shall be constructed in accordance with the requirements
of the utility having jurisdiction.
(2)
All utilities shall be placed in a right-of-way or
easement.
(3)
Nonmetallic wiring tape shall be installed 12 inches
above all utilities.
(4)
The locations of all utilities shall be recorded on
the record drawings.
(5)
Letters of approval for all utilities shall be obtained
from the utility having jurisdiction prior to the paving of roadways
or acceptance of the road by the town.
O.
Driveways. Proposed driveways shall comply with the
Driveway Opening Ordinance Town of Schodack,[1] except as follows:
