A.
Interpretation of drawings. The contractor shall abide
by and comply with the true intent and meaning of all drawings and
of the specifications taken as a whole. If the contractor believes
that the construction indicated on the project drawings will not,
when executed, produce safe and substantial results or if it appears
that there is any discrepancy in the drawings, it is his or her duty
immediately to notify the applicant's engineer, in writing, and to
thereafter proceed only upon written order.
B.
Protection of property and work.
(1)
The contractor shall so conduct his or her operations
as to damage no more than is absolutely necessary, trees, garden plots,
shrubbery, pipe lines, conduits, buildings and other structures. The
contractor shall use all necessary precautions to protect the work
and adjacent structures of all kinds during construction, and shall
so conduct his or her operations so that at no time shall the work
or such structures be endangered.
(2)
Responsibility and damage. The applicant shall be
responsible for all parts of his or her work, temporary or permanent,
until the project is accepted by the town, and he or she shall thoroughly
protect all work, finished or unfinished, against damage from any
cause, as all work is at the contractor's risk until the same is accepted
by the applicant. The use of part or all of the work by the town,
as provided for in these specifications, shall not relieve the applicant
of his or her responsibility. The contractor shall be responsible
for damage to life and property due to his or her operations and shall
provide all necessary guards, rails, night-lights, etc.
C.
Permits. The applicant and/or contractor shall secure
all necessary permits from the town and any other authority which
may have control over any structures involved before construction
begins.
D.
Existing utilities or structures. Before construction
begins near any existing utility or structures, the contractor shall
notify the appropriate utility owner of his or her intention, and
their instructions as to the protection of their property must be
followed. Before commencing work, the contractor shall determine the
exact locations of any structure or underground utility in order that
the contractor's project will not damage or disrupt these facilities.
E.
Facilities for inspection. The contractor shall furnish
all reasonable facilities and aid to the inspectors and safe and convenient
footways, scaffolds, ladders, etc., that may be needed for the examination
and inspection of any part of the work. Inspectors may stop work when
the contractor has no responsible agent on the project, or if he or
she feels that the contractor is not performing the work in the best
interests of the town. Disorderly, intemperate and incompetent persons
shall not be allowed on the project; the employees who neglect or
refuse to follow the inspector's instructions shall be permanently
removed from the project.
A.
Excavation. Under this term shall be included all
excavations in trenches and pits, together with all backfilling and
embankments that may be needed for the laying of the utilities and
appurtenances or that may be necessary for the laying, changing and
construction of any other water, gas or drain pipes, sewers, conduits,
culverts, drainage ditches or watercourses, either under or over the
proposed pipes, or for any other incidental work that may be ordered
by the engineers, and all shall be done in accordance with the federal
safety standards of OSHA.
B.
Width of trenches. The trenches shall be of such width
as may be required by the approved design to ensure proper and workmanlike
laying and handling of the pipes and appurtenances, proper tamping
and backfilling when laid. In all cases, trenches shall be kept as
narrow as possible. The contractor shall be responsible to provide
sheeting/bracing or other requirements to ensure the safety of his
or her workers in conjunction with the proper installation of the
pipe.
C.
Depth of trenches. The trenches for the main shall
be in general excavated to such a depth to install the main to the
grade established in the field after said main is properly bedded
with suitable material.
D.
Tunneling. All work shall be done in open trenches
or excavations, no tunneling shall be done except in these areas specifically
called for on the approved plans and then only with experienced personnel
under the guidelines of OSHA.
E.
Blasting. Whenever necessary to resort to blasting
for making the excavations, the trench shall be covered on the top
and sides with heavy timbers or mats to prevent fragments of rock
from being thrown out, or rock may be drilled and shot before excavating
if the rock is at a minimum depth of four feet to provide enough cover
for safety. Only experienced, skillful and trustworthy workers shall
be employed in the handling and uses of explosives, or have access
thereto. All blasting operations shall be conducted in strict accordance
with existing ordinances, regulations and specifications relative
to rock blasting and the storage and use of explosives.
F.
Bailing and draining. The contractor shall furnish
a sufficient pumping plant and shall provide and maintain, at his
or her own expense, satisfactory drainage whenever needed in the trench
and other excavations during the progress of the work and at its completion
for final inspection. No structures shall be laid in water. Water
shall not be allowed to flow or rise upon any concrete or other masonry.
All water pumped or bailed from the trench or other excavation shall
be conveyed in a proper manner to a suitable point of discharge.
G.
Bottom of trench. The bottom of the trench shall be
carefully graded and formed according to the specification of the
material manufacturer and to the satisfaction of the Town Engineer
before any pipes are laid therein. When other instructions are not
given, the trenches shall always be excavated in a straight line.
In hard pan, boulder formations, loose rock or solid rock, the excavation
shall extend at least six inches below the bottom of the pipe, and
a carefully compacted bed of selected earth or sand or crushed stone
placed in the bottom of the trench up to the level of the bottom of
the pipe. It is the intention of this specification to achieve not
less than Class B pipe bedding.
H.
Suitable bedding and safety backfill material. It
shall be the responsibility of the contractor to utilize material
excavated from the trench in order to achieve this end. Should the
nature of the soil down to the required depth be such that the contractor
is unable to meet the above requirements by selecting pipe bedding
and backfilling with reasonable care from the excavated material,
he or she shall provide the following bedding materials if so ordered
by the town's Inspector:
(1)
A sand, stone or concrete cradle when the trench bottom
does not provide sufficient bearing capacity.
(2)
A sand cradle shall be provided when the trench is
excavated in rock, boulders or hard pan and none of the material above
this level is suitable for bedding the pipe but is acceptable as backfill
when placed carefully.
(3)
Sand encasement shall be ordered by the Town Engineer
when the trench is excavated in rock, boulders or hard pan and none
of the material above this level is suitable for bedding or backfilling
the pipe.
A.
Line and grade. All pipes and appurtenances of whatever
character shall, when set, conform to the alignments and grades required
by the Town Engineer; and as the work proceeds, all of the required
special castings and other fixtures that are indicated upon the plans
or that may be required during the progress of the work shall be installed
in their proper positions.
B.
Laying pipe. The contractor shall use suitable tools
and appliances for the safe and convenient handling and laying of
the pipes and all appurtenances. All pipes and castings shall be carefully
examined by the contractor for defects and no pipe or casting which
is known to be defective shall be laid. If defective pipe or castings
should be discovered after being laid, these shall be removed and
replaced with sound pipe or castings. The pipes shall be cleaned before
they are laid and shall be kept clean until they are accepted with
the completed work. All pipe ends shall be capped, except during the
actual pipelaying.
(1)
Sewers shall be built to straight lines and grades
between angle points or manholes. Batter boards and/or grade lines
shall be provided at sufficient intervals (maximum of 25 feet) for
the proper installation of the pipe. Sewer pipe shall be laid upgrade
with spigots placed in the direction of the flow. All pipes shall
be fitted together to form a smooth, even invert. Pipes disturbed
after laying shall be taken up and relaid. Any necessary pipe cutting
shall be done by skilled workers with sharp tools.
(2)
After the pipe has been placed and adjusted to line
and grade, the bed shall be trimmed to support the pipe for its entire
length. Material used for bedding shall be rammed under the bottom
and the haunches of the pipe. The trench shall then be completely
filled to above the top of the pipe with similar material carefully
compacted into place to hold the pipe in position.
C.
Cutting pipe. Whenever it may be necessary to cut
any straight pipe for any purpose, cutting shall be done to the satisfaction
of the Town Engineer by skilled workers with proper tools, in such
manner as will not cause any cracking of the pipe.
A.
Sanitary manholes. Manholes shall be constructed at
the locations shown upon the map, or as designated by the Town Engineer.
The vertical pipe sections shall be cast in such lengths that the
top of the roof slab shall be not more than 15 inches below the finished
surface grade, and a minimum height within the manhole of not less
than four feet clear from the bench to the underside of the roof slab
shall be allowed. The slabs shall be formed to fit into the ends of
the vertical pipe and shall have a full bearing for its entire circumference.
The slab shall be set in a bed of cement mortar. All manhole joints
shall be purged on the outside and coal tar coated.
B.
Drop manhole.
(1)
Wherever the invert of the entering sewer is more
than two feet above the invert of the outlet sewer, it shall be connected
with an outside drop with a cleanout pipe half bricked up. Where possible,
the drops shall be constructed with vertical drop pipes; otherwise,
the drop may be offset. When drops are placed, the entire excavation
around the drop pipe shall be filled with concrete extending not less
than two feet along the main sewer.
(2)
The cleanout opening in the barrel of the manhole
shall be cut in after the manhole wall pipe is in place, and the joint
between the cleanout pipe and the manhole wall shall be thoroughly
sealed with non-shrink cement mortar and coal tar coated.
D.
Sealing of manholes. All sanitary manholes shall be
sealed on all interior and exterior walls and joints with two coats
of coal tar manhole sealer to achieve a minimum dry thickness of 11
mills, and shall be tested along with all sewers for infiltration
and exfiltration.
E.
Storm manholes. Storm manholes shall be constructed
to a minimum inside diameter of four feet zero inches.
(1)
Where shallow manholes occur, they shall not be corbelled
to finish grade but remain at the same diameter.
(2)
A brick invert shall be required only on manholes where 18 inches or less of storm drain pass through. The inside surfaces shall not require a seal coat, although the inside shall be finished in a smooth and neat fashion. Exterior surfaces shall be sealed as specified in Subsection D above.
(3)
Manhole frames shall be adjusted to finish grade and
properly set in mortar.
G.
Frames and covers. The frame shall be firmly set in
a bed of not less than one full inch of cement mortar adjusted to
the finished grade. The cover shall fit tightly in the frame and rest
on the frame for its entire length so that it does not rattle when
vehicles pass over it. The manhole frame may be set directly on the
concrete roof slab, provided that the top will be at the proper grade;
otherwise, the frame shall be set on up to three courses of brick
masonry laid around the roof opening to bring the cover up to grade.
Such brick masonry shall be given a one-half-inch plaster coat on
the inside and outside and then coal tar coated.
A.
Laterals and water services shall be installed to
the right-of-way (or easement) lines for all lots. The laterals shall
be tightly capped. Each service shall be located with a two-inch-by-four-inch
witness stake extending a minimum of one foot above finished grades.
The stakes shall be painted the following colors to denote the service
they locate:
|
Type of Service
|
Color
|
|
Sanitary lateral
|
Red
|
|
Storm lateral
|
Black
|
|
Water service
|
Blue
|
|
Gas service
|
Yellow
|
|
Electric
|
By the electric company
|
|
Telephone
|
By the telephone company
|
B.
At the time that the development is offered to the
town for dedication, an accurate record plan showing the locations
of all laterals and all of the respective witness stakes must be visible.
Each cleanout and end cap must be located with three ties. Wye branches
locations shall be measured from center of manhole covers.[1]
Hydrants and valves shall conform to requirements
of the Monroe County Water Authority or the Sea Breeze and Vicinity
Water District.
A.
Generally. When for any reason the work is left unfinished,
all trenches and other excavations shall be filled. The roadways and
sidewalks shall be left unobstructed, with their surface in a safe
and satisfactory condition. In all pipe trenches, whether in paved
streets or not, the backfill shall be carefully tamped around the
pipes. On unpaved streets, the backfill above the pipe shall be carefully
consolidated and compacted in order to prevent settlement. Whenever
practicable, the trench shall be tamped sufficiently to prevent any
settlement of or damage to adjacent structures, whether pipe lines
or conduits or other structures, and no trench shall be backfilled
before it is inspected by the Town Engineer or Town Inspector.
B.
Backfill immediately after approval. In this operation,
no stones shall be thrown in. Only the finest selected earth material
shall be deposited under and around the pipes and appurtenances, covering
them by hand for a depth of at least 12 inches above the pipe. This
earth shall be thoroughly tamped or rammed as it is being thrown in
(particularly around and under the haunches of the pipe) so as to
fill the lower portion of the trench thoroughly throughout and give
said pipe a solid bearing for its entire length. The material must
not be thrown down from above faster than the workers below can properly
distribute and compact it. Approval of the state, county and town
highway authorities shall be obtained if the completed backfill is
in an area under their jurisdiction.
C.
Restrictions as to materials. No rock or frozen earth
shall be put in the trench until the refilling has reached at least
two feet above the top of the pipe lines, and then not unless especially
permitted by the Town Engineer. All spaces between suitable pieces
of rock shall be thoroughly filled with earth by backfilling in alternate
layers of rock and earth. Needless humps after refilling trenches
in unpaved streets and humps and hollows in the temporary surfacing
of paved streets will not be tolerated, and if any such are found,
they shall be immediately remedied by the contractor.
D.
Cleaning up.
(1)
As the work progresses or as directed by the Town
Engineer, all rubbish or refuse, unused materials and tools, shall
be removed at once from along and near the area in which the lines
and other structures have been built.
(2)
Rough cleanup along the route shall immediately follow
installation procedures. Large spoil banks will not be permitted in
a developed area.
(3)
Final cleanup and rough grading and landscaping shall
proceed immediately after the installation, testing and approval of
the facilities.
(4)
In all cases, the project site shall be restored to
a condition equal to or better than that which previously existed
to meet the approval of the Town Engineer.
E.
Surplus material removal. Where there is a surplus
of material not required in refilling the trenches, it shall be promptly
removed by the contractor at his or her expense and deposited at points
approved by the Town Engineer, unless such surplus materials are claimed
and removed by the applicant.
A.
General provisions. Upon the satisfactory completion
of the installation of the underground utilities, the contractor shall
proceed to test each of the installed facilities as herein specified.
The tests shall be conducted in the presence of the Town Engineer
or Inspector. Records and data of these tests shall be submitted to
the town.
B.
Sanitary sewers.
(1)
All sewers shall be flushed and lamped and then a
ball one inch less in diameter than the sewer shall be passed through
the pipe.
(2)
An exfiltration test shall be placed on the completed
system (including laterals to the property line) with a water loss
not to exceed 100 gallons per inch diameter of pipe per mile per day.
C.
Storm drains. All drains shall be flushed and lamped
to ensure that no obstacles are obstructing the flow of the pipe.
F.
Defective areas. In those areas where satisfactory
results of applied tests cannot be obtained, the defective portion
of the system shall be located and replaced with new material and
not repaired. That portion of the system shall then be retested until
satisfactory results are obtained. Use of repair clamps shall not
be permitted.[3]
A.
General provisions. The contractor shall not proceed
to construct any of these items until the underground system has been
installed, tested and approved. Careful attention shall be given to
obtaining maximum compaction in backfilled areas. The type of soil
prevalent in this town precludes ultimate compaction in a short period
of time. Therefore, final paving of the road surface shall be delayed
for a period of seven months or at least until a winter season has
passed since the completion and approval of the underground system.
The road shall be constructed to the shape and dimensions shown in
the Appendix D.[1] A greater road width may be required by the Planning Board
in those areas where high traffic volumes are required.
[1]
Editor's Note: Said Appendix is located at
the end of this chapter.
B.
Roads and gutters.
(1)
Subbase. Excavation to the subgrade elevation may
commence immediately after the approval of the underground system.
Subgrade elevations are to be established from stakes set at intervals
not to exceed 50 feet. The subgrade shall be graded to remove all
unsatisfactory or unstable material. Where material is removed below
the subgrade elevation, suitable granular material shall be brought
in. The entire subgrade surface shall be thoroughly compacted with
a ten-ton steel-wheeled roller. No movement shall be observed in the
subgrade material as the roller passes.
(2)
Base material. Approved material shall be uniformly
deposited and compacted in two equal layers with a ten-ton steel-wheeled
roller or vibratory compactor equivalent to a 400 Royco Roller. Rolling
shall begin at the sides and continue toward the center and shall
continue until there is no movement of the course ahead of the roller.
After compaction, the top surface of this course shall not extend
above the theoretical elevation for this course, and when tested with
a straightedge 16 feet in length, any depression over 1/4 inch below
the theoretical grade line shall be satisfactorily eliminated.
(3)
Concrete gutters shall be formed to the shape and
dimensions shown on Appendix D.[2] Gutters shall be constructed in eight-foot sections. A
steel plate 1/8 inch thick shall separate adjoining sections. Joints
shall then be poured full with an approved bituminous joint filler
material. Gutters shall, after proper curing, be sealed with two coats
of clear sealer applied at the rate of 0.10 gallons per square yard.
The gutters, prior to the placement of the final pavement surface,
shall be flooded to ensure satisfactory drainage to the catch basins.
In those areas where pockets occur, the gutter sections shall be removed
and replaced to proper grades to ensure positive drainage. Formless
or slip form construction shall be permitted, provided that the gutters
conform to the standard town detail.
[2]
Editor's Note: Said Appendix is located at
the end of this chapter.
(4)
Binder material. Binder material shall be placed and
compacted to a finished layer two inches thick. The binder shall be
thoroughly compacted from the outside edges inward with a ten-ton
steel-wheeled roller so that no movement or wearing of the material
is observed ahead of the roller.
(5)
Surface course.
(a)
Preparation for placement of the surface course
shall begin after a thorough investigation of the binder and base
areas has been made by the Town Engineer or Commissioner of Public
Works. All depressions shall be properly filled in to bring them up
to proper elevation. The binder course shall be cleaned of all dirt
or foreign material.
(b)
The surface course of asphaltic concrete shall
be placed to a compacted thickness of one inch. A ten-ton steel-wheeled
roller shall be used. No movement or weaving shall be observed ahead
of the roller.
(6)
Seasonal restrictions on use of asphaltic concrete
material. No asphaltic concrete material shall be placed prior to
May 15 or after October 15 without the written approval of the Town
Engineer.
C.
Curbs.
(1)
The curb shall be set true to line and grade on an
approved foundation course with a seven-inch reveal on the face. The
foundation course shall consist of four inches of two-thousand-five-hundred
Class D concrete mixed dry and placed in an approved manner.
(2)
All spaces under the curb shall be carefully and thoroughly
rammed so that it shall be completely supported throughout its entire
length.
(3)
The trench for the curb shall be excavated for a width
equal to the curb width, plus six inches, and to a depth to allow
a four-inch base of concrete under the curb.
(4)
Curb sections shall be fitted together as closely
as possible, but not closer than 1/4 inch nor more than 1/2 inch to
form a joint.
(5)
The joints in the curb shall be carefully filled with
cement mortar, rodded in place and mixed as herein provided. The top
and exposed front shall be neatly pointed flush with the curb surfaces
and satisfactorily cleaned of all excess mortar.
(6)
After the curb has been set, the trenches shall be
backfilled with concrete to a depth of at least nine inches above
the base of the curb.
D.
Sidewalk construction.
(1)
Concrete sidewalks shall be constructed to the sizes
and locations shown in the Appendix E.[3] A four-inch stable crushed stone base shall be placed
and compacted to the approval of the Town Engineer.[4]
[3]
Editor's Note: Said Appendix is included at the end of this chapter.
(2)
The concrete shall then be placed in twenty-five-foot
sections, with dummy joints every five feet. An approved bituminous
joint filler shall be used to fill in the construction joints. The
surfaces of the sidewalk shall be broom finished to provide a rough
surface. The entire surface of the sidewalks shall receive two coats
of clear concrete sealer applied at the rate of 0.10 gallons per square
yard.
The monuments shall be installed in those areas shown on the final plat and as located in the field by a licensed land surveyor. They shall be installed in accordance with the provisions of § 204-29.
A.
General grading. The Planning Board shall require
sufficient assurance from the applicant before final approval is granted
that during the course of grading, both rough and finish, sufficient
precautions have been taken to prevent soil erosion or damage to surrounding
properties. Guarantees shall be in the form of, but not limited to,
the following requirements:
(1)
No earthmoving or pan work shall be done when winds
in excess of 35 miles per hour are present, unless there is no downwind
development.
(2)
Sufficient dust-control measures during construction
in the form of either calcium chloride or water-tank trucks shall
be used to preclude damage or nuisances to surrounding areas.
(3)
After rough grading has been done and before houses
are started, by order of the Town Engineer only, the contractor shall
be required to seed the area with a mixture containing at least 70%
common rye grass to protect against blowing dust and soil erosion.
Grass shall be delivered to the site in bags clearly marked with the
supplier's guaranteed analysis.
(4)
No cuts or fills shall be permitted in areas where
the natural slope would be substantially increased. Where sliding
could result, unless sufficient provisions to preclude erosion and
sliding have been designed, approval, in writing, of the Town Engineer
shall be required.
B.
Final grading.
(1)
Upon satisfactory completion of the utilities and
roads, the entire area within the right-of-way shall be raked and
finished to an acceptable appearance, and approval, in writing, by
the Town Engineer shall be required.
(2)
The contractor shall be responsible to fine grade
the right-of-way at least once. In those areas where home building
has started, unsightly cleanup and depressions shall then become the
responsibility of the builder.
(3)
Debris and spoil banks created during the development
(not home building) of the site shall be entirely removed and disposed
of from the site.
During the time period between initial installation
and testing and acceptance for dedication, debris and/or sediment
can accumulate in the storm or sanitary systems. The applicant shall
be responsible to flush and remove this debris from the system, in
the presence of the Town Engineer, prior to the final inspection for
dedication.
Street and traffic signs shall be supplied by
the Town Department of Public Works and shall be set in locations
designated by the Department.
A.
In order to dedicate any streets, highways and other
public rights-of-way to the Town of Irondequoit and to obtain final
approval for completion of a development, the following procedures
must be complied with:
(1)
Completion of construction. All construction within
the right-of-way shall be completed, in addition to final inspections
and approvals of construction by the appropriate town departments
involved.
(2)
Monuments. Fixed monuments shall have been set in
their required locations.
(3)
Underground system. The underground system shall have
been cleaned of all objectionable and foreign materials.
(4)
Final grading. The final grading shall have been completed
within the right-of-way.
(5)
Street and traffic signs. All street and traffic signs
shall be properly set in their designated locations.
(6)
Records. Records and testing results shall be supplied
to the Planning Board and Department of Public Works.
(7)
[1]Record maps. Record maps shall be prepared by the applicant's
engineer and three prints and a reproducible (sepia) approved or equal
shall be submitted to the town. The record map shall contain the following
information:
(a)
The locations and inverts of all sanitary and
storm drains, water mains and appurtenances. Top of cover elevations
must be shown for all manhole covers and catchbasins.
(b)
The locations of all valves, catch basins, cleanouts,
and hydrants. Three ties must be shown for each valve, curb box and
cleanout.
B.
Maintenance bonds. The submission and acceptance of
the maintenance bonds for the utilities, roads, gutters and sidewalks
shall be required. Portions of the systems may have been approved
and in use three years after their acceptance with the termination
of that portion of the bond.
C.
Release of final moneys. Upon completion of the above,
the Town Board, upon recommendation from the Town Engineer, shall
authorize release of moneys retained pursuant to the letter of credit.
D.
Release of lot cleanup security deposit. Release of
the lot cleanup security deposit shall be made upon completion of
construction and cleanup of the site, as approved and attested to
by the Building Inspector.
[Amended 2-4-1997 by L.L. No. 1-1997]
