[HISTORY: Adopted by the Town Board of the Town of Warwick as Appendix
2 of Warwick Municipal Code, 1973. Amendments noted where applicable.]
It is the purpose of these specifications to establish minimum acceptable
standards of street construction for subdivisions which have been established
by the towns of Orange County to conform to legal requirements in the State
of New York, which requirements and standards must be met and paid for by
the person or firm proposing that the Town take over such road as a Town road.
Those specifications include but are not limited to width, design, drainage,
construction of base and pavement, curbs and monuments. Dedication of the
right-of-way will not be accepted until the developer's professional engineer
and the Town Commissioner of Public Works or Town Engineer shall have certified
to the Town Board, in writing, that the construction of the street or road
has been completed in accordance with the approved plans and specifications
that follow and that the total right-of-way area has been cleared of all debris
and all construction has been completed in a workmanlike manner. When new
road rights-of-way are offered to the Town for dedication, two copies of the
final plan and deed description of the right-of-way shall be submitted to
the County Superintendent of Highways for approval pursuant to § 170
of the Highway Law.
In his written certification, as required above, the developer's professional
engineer shall state clearly that he or his authorized representative has
inspected all phases of the street construction and that all work has been
completed in accordance with the approved plans and specifications.
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
A.
A plan of the proposed street shall be prepared by a qualified professional engineer licensed by the State of New York. The plan shall clearly define the limits of the proposed right-of-way by metes and bounds and shall include the location, widths, profiles and grades of the proposed roadway, storm drainage, including culverts and other drainage structures, and the location of all easements and utilities. The plans shall also indicate owner of property and name of developer if other than owner. One copy each of the plans shall be submitted to the Town Commissioner of Public Works and Town Engineer at the time of application to make such road a Town road, and to the County Superintendent of Highways when said proposed street drains toward, intersects or may otherwise affect a county highway. It will then be submitted to the Town Planning Board for review and approval under the applicable subdivision regulations of the Town. Such roadway must not be subject to any right or easement in others which will in any way interfere with its use as a road at all times. Such roadway must be granted to the Town by a full covenant and warranty deed containing the correct metes and bounds description as shown on the approved map, which deed must be in such form as may be required to entitle the same to be recorded in the office of the County Clerk of Orange County. A policy of title insurance or other assurance of title satisfactory to the Town Attorney shall be provided to the Town when the road offered is accepted. All expenses incidental to the dedication and acceptance of any road shall be borne by the applicant. The provisions of § A168-3 shall apply to private roads and common driveways, where applicable, as directed by the Planning Board or the Town Engineer.
B.
Permanent and temporary easements must be furnished in
said deed granting to the Town the right to maintain all outlets of culverts
and drainage structures for surface water or natural stream drainage which
will run from such roadway over private property to a point where a natural
watercourse exists and to which such outlet and easement will carry such water.
A minimum width of easement of 20 feet shall be required for the maintenance
of said easements.
C.
The proposed roadway must be constructed to conform to
the minimum requirements and standards set forth below. The minimum width
to be cleared shall include all trees, rock formations, buildings, walls and
any such things that would endanger those using the roadway. The removal of
such obstructions shall be borne by the person or firm proposing such road.
D.
A stormwater and pollution prevention plan (SWPPP) shall
be prepared for all roadways and/or sites in which roadways shall be constructed.
The SWPPP shall be prepared in accordance with the requirements of the New
York State Department of Environmental Conservation's most recent State
Pollutant Discharge Elimination System (SPDES) general permit for stormwater
discharges from construction activity and the Town Engineer. A copy of the
SWPPP shall be submitted to the Town Engineer for approval prior to the issuance
of a building permit.
E.
Upon completion of the project and prior to acceptance
of the roadway by the Town, a complete set of as-built drawings shall be submitted
to the Town Engineer for approval. The as-built drawings shall show all easements,
rights-of-way, monuments, structures (both above ground and below ground),
utilities, sidewalks, driveways and other pertinent features.
[Amended 3-24-2005 by L.L. No. 1-2005]
Plans submitted shall not be altered or amended after having been approved
by the Town Commissioner of Public Works and the Planning Board unless amended
plans are resubmitted and approved. However, the developer, at his own expense,
shall provide additional storm drainage facilities or utilities as may be
ordered by the Town Commissioner of Public Works if, during the course of
construction, in the opinion of the Commissioner of Public Works, the Town
Engineer and/or the County Superintendent of Highways, such additional structures
or facilities are necessary to prevent any need for future installations of
utilities or culverts within the pavement area, to assure the durability of
pavement, future maintenance of rights-of-way or welfare and safety of the
public, unless such variance conflicts with the provisions of a Town or county
official drainage map, in which event the official map shall prevail. If construction
of said road has not been started within one year from date of final approval
by the Town Planning Board, plans shall be resubmitted and approved as above.
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
A.
Performance bonds.
(1)
Prior to the start of construction of any street, the
developer shall deposit with the Town Clerk a performance bond of acceptable
surety, with no expiration date, or shall deposit with the chief fiscal officer
of the Town acceptable negotiable government bonds, cash or certified check
drawn upon a national or state bank, payable at sight to the Town Board, guaranteeing
that:
(a)
Within two years the developer will complete all public
improvements and all the construction within the right-of-way, including roadway,
shoulders, curbs, if any, gutters, storm drainage, etc., and all utilities,
including hydrants and house connections for each lot, as well as all stormwater
management and pollution control measures in accordance with the approved
plans and these specifications; and that all claims for labor and materials
in connection with said construction will have been paid in full prior to
offering said road for dedication to the Town.
(b)
Upon certification by the developer's professional
engineer and by the Town Commissioner of Public Works and Town Engineer that
the construction of the street has been completed in accordance with the approved
plans and specifications, the developer will dedicate the completed street
to the Town for use as a public highway free and clear of all liens and encumbrances.
This guaranty of dedication shall apply to the owner of the property as well
as the developer where the two are not synonymous.
(2)
As guaranty for the above requirements, the developer
shall deposit as hereto set forth a surety bond, negotiable government bonds,
cash or certified check, the minimum total amount of which shall be determined
by applying to the quantities or dimensions shown on the approved plans the
rates per unit as established by the schedule of rates hereto set forth and
forming a part hereof.
|
Table of Rates For Computing Total Amount of the Performance Bond
1987 Basis*
| |||
|---|---|---|---|
|
Rate per Unit
|
Fee
| ||
|
For each linear foot of road complete with storm drainage and curbs
or gutters
|
$125
| ||
|
For each concrete headwall
| |||
|
Built for fifteen- to thirty-inch reinforced concrete pipe
|
$1,000
| ||
|
Built for thirty-six- to forty-eight-inch reinforced concrete pipe
|
$1,500
| ||
|
Built for fifty-four- to sixty-inch reinforced concrete pipe
|
$2,000
| ||
|
For each right-of-way monument
| |||
|
Concrete
|
$1,000
| ||
|
Copper rod
|
$500
| ||
|
Iron pin
|
$250
| ||
|
Eight-inch PVC or ductile iron water pipe, per foot
|
$25
| ||
|
Eight-inch PVC or RCP sewer pipe, per foot
|
$35
| ||
|
*NOTE: The above rates may be increased each successive year to reflect
increased construction costs. The percent increase shall be determined by
the Town Commissioner of Public Works or the Town Engineer.
|
B.
Maintenance bonds.
(1)
Prior to acceptance by the Town of the dedication of the street as guaranteed by Subsection A(1)(b) above, the developer shall deposit with the chief fiscal officer of the Town acceptable negotiable government bonds, cash or certified check drawn upon a national or state bank, payable at sight to the Town Board, guaranteeing that, for a period of one year from the date of acceptance of the dedication of the street by the Town, the developer will maintain the street to the standard of construction set by these specifications, normal wear and tear excepted. This shall be interpreted to mean that the developer will, at his own expense, repair and make good any defects or damage which may develop during this maintenance period as a result of faulty construction within the right-of-way or as a result of other construction by the developer outside the right-of-way. During the maintenance period the Town shall be responsible for snow and ice control, street cleaning, cleaning of culverts and catch basins and other work of similar routine nature, provided that such work has in no way been caused by the developer's operations.
(2)
The amount of the maintenance bond shall be at least
equal to 10% of the original amount of the performance bond.
(3)
Subsequent to the dedication of the street and after
receipt of the maintenance bond, the Town Board shall release the performance
bond.
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
A.
The developer shall design and construct streets which
shall conform to the specifications.
B.
When fill exceeds three feet, the subgrade and foundation
course shall be in place a minimum of three months to allow complete settlement
before pavement is laid, unless fill is laid in twelve-inch increments and
compacted to the specified density and to the satisfaction of the Town Engineer.
Field density tests shall be conducted and submitted to the Town, whether
by the Town Engineer or when contractually required by the developer's
Engineer. The test data shall clearly include the results of the tests, plus
the location of each test.
[Amended 3-24-2005 by L.L. No. 1-2005]
A.
The developer shall establish and clearly mark on site
the limits of road rights-of-way and easements with concrete monuments, and
the center line and grades of the finished road pavement and the location
and elevations of drainage structures as shown on the approved plans with
construction stakes. Such construction stakes shall be maintained at the developer's
expense until the construction of road pavement, drainage structures, curbs,
sidewalks and shoulders has been completed, inspected and approved by the
Town Commissioner of Public Works and the Town Engineer.
B.
Permanent concrete monuments shall be set on right-of-way
lines of streets at all intersections, angle points, point of curvature and
beginning and end of streets. There shall be a clear view of adjacent monuments
on the right-of-way line. All monuments shall exist on completion of the construction
of the streets. The permanent markers shall be made of concrete or granite
with minimum dimensions of 30 inches long, four-inch square top and six-inch
square bottom with a one-half-inch drilled hole in the top. If a monument
should be located in a rock ledge, the surface shall be stripped and a one-half-inch
steel rod drilled into the ledge. Monuments shall protrude three inches above
the final graded surface.
C.
The developer's licensed surveyor shall certify
that the location of all monuments is accurate before acceptance of the street
by the Town Board.
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
Where surface water from streets must lead through other than gutters
and storm drains or existing stream channels outside the right-of-way, permanent
drainage easements having a minimum width of 20 feet shall be provided to
a point where a natural watercourse exists. In some cases this may include
easements over property outside the boundaries of the subdivision involved.
Natural stream or ditch channels shall have a minimum fifteen-foot-wide permanent
easement and be shown on the proposed plans of subdivision. All permanent
easement lines shall be monumented as a right-of-way.
[Amended 3-24-2005 by L.L. No. 1-2005]
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
A.
The developer shall complete the shaping of the road
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
Commissioner of Public Works. In the construction of the roadway, all topsoil,
loam, rocks and organic material shall be removed until a firm, unyielding
subgrade is established. All fills shall be made with acceptable material
as approved by the Town Commissioner of Public Works. Such fills shall be
made in loose layers of not more than 12 inches thick and properly compacted
with a vibratory roller or equivalent to a minimum of 90% of the maximum dry
density as determined by the modified proctor tests (ASTMD1557).
B.
The subgrade shall be shaped to line and grade with no
depressions. The subgrade shall be stable in all respects to the satisfaction
of the Town Commissioner of Public Works and Town Engineer before the foundation
course is laid. No large stones, rock ledges or organic material shall protrude
into the foundation course. The subgrade shall be approved to be suitable
for supporting overlying pavement section by a licensed professional engineer
familiar with pavement design and construction.
C.
Also, before the foundation course is laid, all storm
and sanitary sewers and all utilities, including house connections for existing
and future homes, and hydrants shall have been installed to the satisfaction
of the Commissioner of Public Works and Town Engineer. All utilities shall
be marked by placement of warning marker tape, directly above the utility,
18 inches to 24 inches below grade, when completing the work. All slopes and
sidewalk areas shall be graded before the foundation course is laid, and all
loose and exposed stones will be removed.
D.
Design, testing and certification.
(1)
Criteria. All pavement sections should be designed based on natural undisturbed (cut) or embankment fill subgrades having a modulus of subgrade reaction (Mr) equal to or greater than 5,000 pounds per square inch. If, in the design engineer's opinion, the natural or embankment fill subgrade material cannot, within a reasonable factor of safety, provide the minimum support noted above, the subgrade shall be modified in accordance with Subsection D(3) below.
(2)
Testing.
(a)
Proposed subgrades along planned roadway alignments shall
be tested in the field by the use of test pits and/or soil borings, at a spacing
no greater than every 200 feet, excavated to a depth suitable for determining
the existing conditions at the planned roadway subgrade elevation. The minimum
depth shall be as required to penetrate through any existing fill or unsuitable
materials and reach firm natural soil, but no less than eight feet below the
existing ground surface. Representative samples shall be taken from these
field tests for laboratory testing of the soil characteristics.
(b)
Tests shall also be performed at prospective on-site
source areas for embankment fill materials. Samples shall be taken from a
minimum of two locations within each source area for laboratory testing.
(c)
Laboratory testing shall be performed on soil samples
collected during the field investigation to determine design characteristics
of the soils encountered. Laboratory testing shall include, but not be limited
to, determination of particle size distributions, Atterburg limits, maximum
dry densities (by the Modified Proctor Method) and other tests determined
to be necessary by the design engineer.
(3)
Design.
(a)
If, upon completion of testing, the design engineer determines that the proposed roadway subgrade meets the criteria given in Subsection D(1) above, the standard pavement design provided below shall be utilized. If upon completion of testing, the design engineer determines that the proposed roadway subgrade does not meet the criteria given in Subsection D(1) above, the existing subgrade shall be remediated to the extent necessary to meet the specified criteria.
(b)
Subgrade remediation may consist of removal of the unsuitable soils and replacement with embankment fill materials meeting the requirements of Appendix F of these specifications.[1] Alternatively, the design engineer may specify a soil improvement technique to achieve the criteria given in Subsection D(1) above. Soil improvement techniques may include, but shall not be limited to, the use of: geotextiles for soil separation or stabilization, geogrid reinforcement beneath and within embankment fills, or other methods of subgrade stabilization. The design engineer shall provide adequate written documentation (including calculations) detailing the design of the modifications to the Town Engineer for approval prior to commencement of construction.
[1]
Editor's Note: Appendix F is included at the end of this chapter.
(c)
Wherever testing indicates that the foundation fill is
to be placed over soil containing more than 25% of the material, by weight,
passing the No. 200 sieve, the foundation course shall be separated from the
underlying soils by a separation fabric. The separation fabric may be either
woven or nonwoven and shall have both trapezoidal tear and puncture strengths
of at least 50 pounds. The design engineer shall specify a geotextile with
an apparent opening size that is determined to be suitable for separating
the subgrade from the foundation course.
(4)
Construction.
(a)
Upon removal of all topsoil and unsuitable materials, as described in Subsection A of this section, all natural roadway subgrades shall be proofrolled under the supervision of a licensed professional geotechnical engineer or his or her designated subordinate(s). All natural subgrades shall be approved by the licensed engineer prior to the placement of embankment fill or the foundation course. If, during the course of subgrade inspections, the inspecting engineer determines that the subgrade is unsuitable for supporting the embankment fill or foundation course, the subgrade shall be modified in accordance with Subsection D above.
(b)
All embankment fill and subgrade fill shall be tested for compliance with the specified material characteristics as well as degree of compaction. All fill materials shall be compacted to the consistency defined in Subsection A of this section. Compaction testing shall be in-place nuclear method and/or the in-place sand cone method, as specified by ASTM. Field density tests shall be performed at no less than one test lift per 100 feet of roadway alignment.
(5)
Certification. At the conclusion of construction, a professional
engineer licensed in the State of New York shall certify that all roadway
subgrades were observed to be suitable for supporting embankment fills and
pavement sections, and that fills have been placed and compacted in accordance
with these and the project specifications. This certification shall be submitted
to the Commissioner of Public Works and the Town Engineer, whether the testing
is performed by the Town Engineer or, where contractually required, performed
by the developer's engineer.
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
A.
The foundation course shall consist of select granular subgrade (§ A168-23A) (NYSDOT Item 203.20) to a minimum thickness of six inches, with a top of 12 inches of subbase material (§ A168-23A) (NYSDOT Item 304.12) as approved by the Commissioner of Public Works. It shall contain stones no larger than four inches in thickness and be well-graded from coarse to fine. The material shall be placed on the prepared subgrade in two layers, and each layer shall be thoroughly compacted by rolling with a vibratory roller or other equivalent compaction equipment to a minimum of 95% of the maximum dry density, as determined by the Modified Proctor Test (ASTMD1557). After compaction, the foundation course shall be fine graded to an elevation allowing for the six inches of wearing course and approved by the Commissioner of Public Works. A minimum of three months shall be allowed for the street to settle and compact before pavement shall be constructed, or as ordered and approved by the Town Engineer or the Commissioner of Public Works. Stakes with final line and grade shall be maintained by the developer at all times to check the foundation course as well as pavement. The inclusion of the six-inch thick layer of select granular subgrade shall not be required if the Engineer can demonstrate that either the undisturbed, firm, natural subgrade solid or embankment fill meets the requirements given in § A168-23A.
B.
Testing and certification.
(1)
The materials to be used for the subgrade and subbase courses shall be tested in the laboratory for compliance with material specifications given for each material in the NYS DOT Standard Specification items given in Subsection A of this section of the street specifications.
(2)
The compaction of each lift of material in the foundation
course shall be verified by in-place density tests performed by utilizing
the in-place Nuclear Method and/or the in-place Sand Cone Method, as specified
by ASTM. Tests shall be performed at no less than one test per lift per 100
feet of roadway alignment.
(3)
At the conclusion of construction, a licensed professional
engineer shall certify that all roadway foundation courses have been placed
and compacted under his/her supervision to a condition suitable for supporting
this overlying pavement. This certification shall be provided in writing to
the Town Commissioner of Public Works and the Town Engineer, whether the testing
is performed by the Town Engineer or, where contractually required, performed
by the developer's engineer.
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
A.
The drainage system and/or culverts shall be designed
in accordance with established engineering principles and approved by the
Town Engineer. A design condition of a twenty-four-hour storm having a return
frequency of 10 years shall be used. Plans for any drainage structure other
than pipe culverts, when existing or proposed, shall be submitted in detail
to the Commissioner of Public Works for approval. The minimum grade of any
drainage pipe or culvert shall not be less than 1%. The approved plans shall
show invert elevations of the inlet and outlet of all drainage structures.
Any deviation from the approved plans shall be on approval of the Town Commissioner
of Public Works or Town Engineer, in writing. No culvert pipe shall be less
than 15 inches in diameter unless by approval of the Town Commissioner of
Public Works and Town Engineer. Pipe for culverts may be reinforced concrete,
which shall conform to the attached specifications for materials, or HDPE
pipe, which shall be in accordance with the New York State DOT Specifications.
B.
The width of the trench in which the pipe is laid shall
be sufficient to permit thorough tamping of the backfill around the pipe.
A cushion of select granular fill at least six inches shall be laid in line
with grade prior to laying the pipe. No rock over three inches in thickness
shall protrude or lie in this cushion. The soil below the cushion shall be
stable enough that there will be no settlement of pipe after backfilling the
trench. All pipe bedding and backfill shall conform with the subsections listed
below, as excerpted from § 203-2.02C, 203-3.15 and 603-3.03 of the
New York State Department of Transportation Standard Specifications for Construction
and Materials, 2002, revised 2004. [Note: Dimensions have been converted from
metric to imperial units for this specification.]
(1)
Select granular fill. Materials furnished under these
items shall be suitable, well graded, and conform to the following requirements:
(a)
Gradation. Except when used as backfill material for
plastic pipe, the material shall have the following gradation. When used as
backfill for plastic pipe, 100% of the material shall pass the 19 mm sieve.
|
Sieve Size
|
Percent Passing by Weight
| |
|---|---|---|
|
4 inches
|
100
| |
|
No. 40
|
0 to 70
| |
|
No. 200
|
0 to 15
|
(b)
Soundness. The materials shall be substantially free
of shale and soft, poor-durability particles. A material with magnesium sulfate
soundness loss exceeding 30% will be rejected.
(c)
Composition. Reclaimed asphalt pavement (RAP) shall not
be used.
(d)
pH. Where the Town elects to test for this requirement,
a material with pH of less than five or more than 10 shall be rejected.
(2)
Fill and backfill at structures, culverts, pipes, conduits
and direct burial cables.
(a)
The type of material to be used in bedding, filling and
backfill at structures, culverts, pipes, conduit and direct burial cable and
payment lines therefor shall be in conformance with the details shown on the
appropriate NYSDOT Standard Sheet or as noted on the plans or as ordered by
the engineer. Do not use RAP. Do not use slabs or pieces or either concrete
or asphalt.
(b)
Fill or backfill material at structures, culverts and
pipes shall be deposited in horizontal layers not exceeding six inches in
thickness prior to compaction. A minimum compaction of 90% modified proctor
maximum density will be required. When placing fill or backfill around culverts
and pipes, layers shall be deposited to progressively bury the pipe or culvert
to equal depths on both sides. When filling behind abutments and similar structures,
all material shall be placed and compacted in front of the walls prior to
placing fill behind the walls to a higher elevation. The limits to which this
subsection will apply shall be in accordance with the plans approved by the
Town Engineer.
(c)
Fill or backfill for conduit or cable placed in a trench shall be carefully placed in a horizontal layer to a depth of six inches over the top of the conduit or cable. This layer of material shall not be compacted; however, the remaining portion of the trench shall be backfilled in accordance with the preceding Subsection B(2)(b). Where cables or conduits are placed and backfilled by a machine in one operation, the above requirements for backfilling do not apply.
(d)
Where sheeting has been used for the excavation, and
incremental removal of sheeting is not specified in the plans or proposal,
sheeting shall be pulled when the trench has been backfilled to the maximum
unsupported trench depth of three feet.
C.
The pipe shall be laid to true line and grade on the prepared bed of the trench. Backfilling of the trench shall be done with select granular fill or other suitable material approved by the Town Commissioner of Public Works and Town Engineer. The backfill shall be made in layers of no more than 12 inches, which shall be compacted as specified in § A168-10. In no case shall the top of any drainage pipe be less than 12 inches below the finished grade of pavement.
D.
All drainage structures shall be of a size sufficient
to carry natural water runoff and stormwater and also that which, in the opinion
of the Town Commissioner of Public Works and Town Engineer, may be reasonably
anticipated from future construction, both from within the development and
from adjoining properties which normally drain across the area of the proposed
development. Any additional drainage facilities not shown on the approved
plan and which may be ordered by the Commissioner of Public Works shall be
constructed by the developer at the developer's expense and in accordance
with these specifications.
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
Catch basins and curb inlets shall be constructed in order that surface
water can be intercepted. Such structures shall be spaced at 300 feet or less.
On grades in excess of 6%, the distance apart shall not exceed 200 feet. See
Figure 2 for details of construction.[1] Whenever, in the opinion of the Town Commissioner of Public Works
and Town Engineer, ground conditions or other circumstances require it, larger
or heavier materials, additional materials, reinforcing or other modifications
and improvements in design and construction shall be made as directed by the
Town Commissioner of Public Works and Town Engineer at any time prior to construction
of pavement.
[1]
Editor's Note: Figure 2 is included at the end of this chapter.
[Amended 3-24-2005 by L.L. No. 1-2005]
Headwalls of concrete or mortared stone masonry shall be constructed
at the outlet and inlet ends of culvert pipe. Culverts shall extend to the
toe of embankment. See Figure 3 for details of construction.[1] The bearing of all headwalls shall have a solid base. If soft material is encountered, it shall be removed and backfilled with select granular subgrade material as defined in § A168-23A of this chapter. It shall be the responsibility of the developer that no headwalls shall crack or become tipped from settlement. An air-entrained concrete mix of 4,000 pounds per square inch after 28 days shall be used.
[1]
Editor's Note: Figure 3 is included at the end of this chapter.
[Amended 3-24-2005 by L.L. No. 1-2005]
A.
If, in the opinion of the design engineer or Town Commissioner
of Public Works and Town Engineer, it is necessary to intercept and carry
away groundwater within the limits of the right-of-way to protect the stability
of the roadbed, curb or sidewalk areas, the subdrainage required by the Town
Commissioner of Public Works shall be installed. Perforated pipe or porous
wall pipe having a minimum diameter of four inches encased in 12 inches of
three-fourths-inch clean crushed stone or crushed gravel shall be used for
such purpose, in an amount deemed necessary by the Town Commissioner of Public
Works and Town Engineer.
B.
Subdrainage shall be installed at the following locations:
(1)
When seasonal high groundwater levels occur within two
feet of the foundation course, as indicated by groundwater observation in
wells (or otherwise) or by observed mottling of the subsoils.
(2)
Along the uphill sides of the roadways within cuts.
(3)
In locations deemed necessary by the developer's
engineer or the Town Engineer.
[Amended 3-24-2005 by L.L. No. 1-2005]
Roof and cellar drains shall in no case be allowed to flow onto the
street right-of-way. With the approval of the Town Commissioner of Public
Works or Town Engineer in writing, these drains may be piped to existing stormwater
pipe drains, if any, to which they will be connected on top only. Such drains
must be installed prior to the start of the application of the foundation
course. Drains from sanitary sewers or septic tanks will not be permitted
to flow into road ditches or storm drains under any circumstances.
[Amended 3-24-2005 by L.L. No. 1-2005]
The grade of the street shall not be in excess of 10% nor less than
1%. By permission of the Town Commissioner of Public Works only shall a grade
of more than 10% be allowed due to topographic conditions. Differences in
grade will be affected with a vertical curve of sufficient length to allow
a vertical sight distance of no less than 250 feet, based on a four-foot elevation.
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
Where installed, concrete curbs shall be constructed on both sides of
the street as shown in Figure 1C prior to laying street pavement to the dimensions
and specifications shown in Figure 4.[1] A base course of six inches of subbase material, tamped and free
of stone over two inches in thickness, shall be laid under all curbing. An
air-entrained concrete mix of 4,000 pounds per square inch after 28 days shall
be used and shall be finished and cured to the satisfaction of the Town Commissioner
of Public Works and Town Engineer. The developer, at his own expense, shall
replace any curbing that has settled, cracked, scaled or has become damaged
in any way by the developer before and within the one-year maintenance period
after dedication. Curbs shall be depressed four inches at all driveways. Stone
curbs or precast curbs may be substituted on approval of the Town Commissioner
of Public Works and Town Engineer.
[1]
Editor's Note: Figures 1C and 4 are included at the end of this
chapter.
[Amended 3-24-2005 by L.L. No. 1-2005]
A.
The developer shall design and construct all driveways
within the limits of the right-of-way with sufficient sight distance and with
a grade of no more than one inch per foot from curb to the right-of-way line.
The minimum width of the driveway pavement at the curb or street pavement
line shall be 15 feet, tapering to a minimum of 10 feet at the right-of-way
line. All driveways shall have a six-inch subbase material foundation course
from curb to right-of-way line and no less than three inches of hot-mix asphalt
(NYSDOT Type 6) wearing course from curb or street pavement line to right-of-way
line, which shall be applied during or after the laying of the street pavement.
The asphalt shall abut the Town Road at a new clean sawcut of the existing
asphalt, and application of tack coat.
B.
All driveways shall be graded to the satisfaction of
the Town Commissioner of Public Works and Town Engineer prior to the surfacing
of such driveways.
C.
Driveway pavement shall extend a minimum of 25 feet from
the edge of the roadway pavement.
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
A.
All intersections with existing Town or county roads
shall be constructed with the edge of pavement having a radius of 24 feet
maximum. Intersections within the development shall be constructed with the
edge of pavement having a radius of 24 feet minimum and 35 feet maximum. All
intersecting streets shall have a minimum horizontal sight distance of 250
feet in each direction. Exceptions for less than 250 feet will be in writing
and approved by the Town Commissioner of Public Works and Town Engineer.
B.
Where a development street intersects a Town or county
road, the approved plans will show the proposed type, length and diameter
of pipe and drainage flow along said road. The pipe will be installed and
paid for by the developer under the direction of the Town Commissioner of
Public Works and Town Engineer or the County Superintendent of Highways or
his representative, as the case may be.
C.
The grade of the intersecting street with a Town or county
road shall be no more than 1/2 inch per foot from the edge of shoulder of
the Town or county road to the right-of-way or road line of said road. The
County Superintendent of Highways shall be notified of all intersections with
county roads, for approval of location, grade and drainage structures.
[Amended 6-23-1988 by L.L. No. 1-1988; 3-24-2005
by L.L. No. 1-2005]
A.
Design criteria.
(1)
All pavement shall be designed based on New York State
Department of Transportation Materials and Placement Specifications.
B.
Option 1:
(1)
Under this option the developer may provide a hot mix
base course of three inches in compacted thickness.
(2)
A mixture shall be of New York State Department of Transportation
Type 1 base course, Item No. 403.118902, or an equal approved by the Commissioner
of Public Works and the Town Engineer.
(3)
The hot mix shall not be installed when the ground temperature
is below 45° F. nor with a mix temperature of less than 225° F.
(4)
After the base course has been laid, it shall be thoroughly
rolled with an approved roller weighing not less than 10 tons.
(5)
After compaction of the base course, three inches of
New York State Department of Transportation Type 6F, Item No., 403.178202
shall be installed and then rolled with a ten-ton roller.
C.
Option 2:
(1)
Under this option the developer may install a bituminous
stabilized base course of three inches in compacted thickness.
(2)
A mixture of graded aggregate material meeting the following
gradation shall be applied:
|
Size
| ||
|---|---|---|
|
2 inches
|
100%
| |
|
1/4 inch
|
30% to 60%
| |
|
No. 40
|
5% to 40%
| |
|
No. 200
|
0% to 10%
|
(3)
The mix of graded aggregate and slow-setting emollient
meeting the requirements of CSS-1H shall be blended in a pug mill approved
by the Commissioner of Public Works so as to have a residual asphalt content
mixture between 3.5% and 5% by weight.
(4)
The material shall be laid in a manner approved by the
Town to avoid segregation of the mix and then rolled with an approved roller
weighing not less than 10 tons.
(5)
After compaction of the base course, two inches of New
York State Department of Transportation Type 6F, Item 403.178202, shall be
installed and then rolled with a ten-ton roller.
(6)
Reclaimed roadway materials may be utilized for base
course applications when approved by the Town Engineer or Commissioner of
Public Works. All applicable materials and workmanship must be in accordance
with NYSDOT Specifications.
D.
Tack coat.
(1)
Tack coat shall be uniformly applied by pressure distributor
to a prepared clean pavement. Distributor shall be capable of uniform application
on variable widths of up to 15 feet at readily determined and controlled rates
from 0.05 to 2.0 gallons per square yard.
(2)
Tack coat shall not be applied on wet pavement surface
or when the surface temperature is below 45° F.
(3)
Except as noted above, tack coat should conform with
Sections 407 and 702 of the NYSDOT Standard Specifications and be utilized
on:
E.
Compaction, testing and certification.
(1)
Asphalt pavement conforming to the specifications of
Options 1 and 2 shall be compacted to a minimum of 95% of the maximum density,
as determined by Marshall Test Method (ASTM D1159) or other appropriate methods.
(2)
The compaction of both the base and top courses of asphalt
pavement shall be verified by in-place density tests performed by utilizing
the Nuclear Method, as specified by ASTM. Tests shall be performed at no less
than one test per lift per 100 feet of roadway alignment.
(3)
At the conclusion of construction, a licensed professional
engineer shall certify that all roadway pavement has been placed and compacted
under his/her supervision to the specified degree. This certification shall
be provided in writing to the Town Commissioner of Public Works and the Town
Engineer, whether the testing is performed by the Town Engineer or, where
contractually required, performed by the developer's engineer.
[Amended 3-24-2005 by L.L. No. 1-2005]
Final decision as to the interpretation of any part of these street
specifications shall rest with the Town Commissioner of Public Works. He shall
have the authority to modify the requirements of these specifications when
in his opinion conditions make it impracticable to follow the strict letter
of these specifications or when conditions make it unnecessary to do so.
[Amended 3-24-2005 by L.L. No. 1-2005]
A.
Select granular subgrade material. All material shall
be hard stone and well-graded from coarse to fine and, in general, shall conform
to the following:
(1)
Gradation. All materials furnished under this item shall
have no particles greater than four inches in maximum dimension. Well-graded
rock shall not be used. Of the portion passing the four-inch square sieve,
the material shall have the following gradation:
|
Sieve Size
|
Percent Passing by Weight
| |
|---|---|---|
|
1/4 inch
|
30 to 100
| |
|
No. 40
|
0 to 50
| |
|
No. 200
|
0 to 10
|
B.
Subbase material shall consist of approved stone which
is the product of crushing or blasting ledge rock and shall conform with the
following gradation:
|
Sieve Size
|
Percent Passing by Weight
| |
|---|---|---|
|
2 inches
|
100
| |
|
1/4 inch
|
25 to 60
| |
|
No. 40
|
5-40
| |
|
No. 200
|
0-10
|
(1)
Soundness. Material for Types 2 and 4 will be accepted
on the basis of magnesium sulfate soundness loss after four cycles of 20%
or less, unless material meeting the requirements of Alternate C (304-2.02)
is used.
(2)
Plasticity index. The required plasticity index of the
material passing the 425 pm mesh sieve is 5.0 or less.
(3)
Elongated particles. A flat or elongated particle is
defined herein as one which has its greatest dimension more than three times
its least dimension. Provide material consisting of particles where not more
than 30%, by weight, of the particles retained on a 0.5 inch sieve are flat
or elongated. When tests are required, material with percentages of said material
greater than 30 will be rejected. Acceptance for this requirement will normally
be based on a visual inspection by the engineer.
[Amended 3-24-2005 by L.L. No. 1-2005]
A.
All concrete for headwalls, etc., shall be mixed in mechanical
mixers with contents one-hundred-percent portland cement; clean water free
of oil, salt, acids, alkali, vegetable matter or other deleterious matter;
and aggregate that is clean, hard-crushed stone or crushed gravel free from
clay, silt, loam or other deleterious matter.
B.
Concrete shall be air entrained and develop an average
ultimate compression strength, based on a four-inch slump, of not less than
4,000 pounds per square inch at 28 days and be approved by the Town Commissioner
of Public Works and Town Engineer.
[Amended 3-24-2005 by L.L. No. 1-2005]
The specifications shall be the same as the New York State Department
of Public Works Specifications for Reinforced Concrete Pipe, except that the
tongue and groove is preferred for all sizes. Each piece of pipe shall be
stamped as such, and the condition of pipe shall be approved by the Town Commissioner
of Public Works and Town Engineer.
[Amended 3-24-2005 by L.L. No. 1-2005]
HDPE pipe shall be the same as specified by the New York State Department
of Transportation.
[Added 6-23-1988 by L.L. No. 1-1988];
amended 3-24-2005 by L.L. No. 1-2005]
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 in such
a manner as to provide an earth cushion having the thickness under the pipe
of not less than eight inches; and where there are excessively heavy fills
over the top of the pipe, the Commissioner of Public Works may specify that
an earth 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 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 true line and grade on the prepared
bed of the trench. All connections for making field joints in corrugated metal
pipe shall consist of corrugated metal band so constructed as to lap on equal
portions of each of the culvert sections to be connected. All joints in making
field connections of reinforced concrete pipe shall be filled with portland
cement mortar.
[Amended 3-24-2005 by L.L. No. 1-2005]
A.
All bituminous material furnished shall conform to the
general specifications for materials of construction as given in the most
current Standard Specifications, Construction and Materials, New York State
Department of Transportation.
B.
For the application of bituminous material, distributors
must be provided with acceptable units for the control of temperature of material.
The bituminous material must be heated to such temperatures as are required
by the Commissioner of Public Works. No bituminous material shall be applied
when the surface of the pavement is wet; and the Commissioner of Public Works
reserves the right to order the application of such material to be stopped
when he deems the conditions unfavorable.
