A.
All excavation, pipe installation and backfilling shall
be performed in accordance with modern standard practices and applicable safety
standards. All components shall be of approved, unused materials, and manufacturers'
recommended procedures shall be employed. More specifically, the following
standards shall apply:
B.
All excavations shall be adequately protected with barricades
and lights. All excavations must be properly refilled to grade in compacted
layers and the original type of surface replaced. Streets, sidewalks, parkways
and other public property disturbed in the course of the work shall be restored
in a manner satisfactory to the Milton Highway Superintendent and any other
authority having jurisdiction.
C.
The opening of streets and sidewalks for the purpose
of making water and/or sewer connections must be done in accordance with the
requirements of Milton Town laws and of the County or State Highway Department,
as applicable. Any required highway work permit shall be obtained by the property
owner or his contractor.
D.
No connections shall be made into a public sewer or water
main except in the presence of a representative of the Town of Milton.
E.
No water shall be allowed to gather in excavations or
trenches. Pumping of septic tanks to be abandoned shall not be discharged
into the public sewer system.
F.
All pipe shall be placed with a marker tape for locating
the line after construction. The tape shall be buried a maximum of 18 inches
below the surface and directly over the pipe. The exact type of marker tape
and its location shall be as approved by the Town of Milton Engineer.
G.
Pipe and accessories shall be handled in such a manner
as to ensure delivery on the work site in a sound, undamaged condition. Rope
or canvas slings shall be used in unloading, loading and installation of pipe
which cannot be placed by hand. The use of chains or tongs shall not be permitted.
H.
Cutting of pipe shall be done in a neat and workmanlike
manner without damage to the pipe or pipe lining. Unless otherwise authorized
by the Town of Milton, all pipe cutting shall be done by means of an approved
type of mechanical cutter. Wheel-type cutters shall be used when practicable.
I.
Before being lowered into the trench, all sections of
pipe shall be inspected for defects. Defective, damaged or unsound pipe shall
be rejected.
J.
Deflections from a straight line or grade, as required
by vertical curves, horizontal curves or offsets, shall not exceed that recommended
by the appropriate specifications or, if not specified, then by the manufacturer's
recommendations. If the alignment requires deflections in excess of these
limitations, the owner shall provide special bends or a sufficient number
of shorter lengths to provide angular deflections within the limit set forth.
K.
All pipelines and appurtenances of whatever type or description
shall be constructed in an approved manner to the complete satisfaction of
the Town of Milton.
L.
All pipe shall be installed to the limits of the approved
subdivision section and shall terminate in a manhole, catch basin, hydrant
or blowoff, as appropriate. Stubs shall be installed in manholes and catch
basins to provide for future extension of pipelines.
[Amended 3-19-1997 by L.L. No. 5-1997]
A.
When a sewer main, water main or service is installed
and completed, but prior to refilling the trench, the contractor performing
the work shall notify the Code Enforcement Officer so that the installation
can be inspected and approval can be given to refill the trench. Trenches
refilled prior to inspection will have to be reopened by the contractor at
his expense. The contractor may also be subject to a penalty. These refilling
regulations also apply to property owners installing their own building water
and/or sewer connection.
B.
In the discharge of their duties and for the purpose
of sewer inspection, properly identified representatives of the Code Enforcement
Officer are legally authorized to enter any premises or property in the Town
of Milton.
A.
Necessary arrangements shall be made by the owner with
all persons, firms or corporations owning or using any poles, pipes, tracks
or conduits, etc., affected by his construction to maintain and protect such
facilities during construction. In the event that any existing gas pipes,
water pipes, conduits, sewers, tile drains or poles are blocked or interfered
with by the excavation required on his project, the owner shall maintain them
in continuous operation and restore them to the same condition as they were
prior to the start of construction.
B.
Sidewalks and pavements must be in no case blocked or
obstructed by excavated material, except with the approval of the Town of
Milton and then only when adequate provisions have been made for a satisfactory
temporary passage of pedestrians and vehicles. Adequate bridging and planked
crossings must be provided and maintained across all open trenches for pedestrians
and vehicles as ordered by the Town of Milton. Barriers, lights, flares and
watchmen shall be provided and maintained by the owner at all trenches, excavations
and embankments as required by the Town of Milton.
C.
The excavating of the trench shall not advance more than
200 feet ahead of the completed pipe work except where it is necessary to
drain wet ground. The width of trenches in which pipe is to be installed shall
be such as to provide adequate space for workmen to place and joint the pipe
properly and shall be in accordance with the following:
|
Maximum Trench Width 1 Foot Above Top of Pipe
| ||
|---|---|---|
|
Pipe Size
(inches)
|
Trench Width
(inches)
| |
|
8 to 12
|
30
| |
|
15 to 18
|
O.D. + 16
| |
|
21 to 27
|
O.D. + 18
| |
|
30 to 36
|
O.D. + 24
| |
|
NOTE: O.D. is outside diameter of pipe barrel
| ||
D.
The owner shall furnish, put in place and maintain such
sheeting and bracing as may be required to support properly the sides and
ends of excavations and to prevent injury to the structure built or to persons
or property.
E.
If at any time the Town of Milton orders, the owner shall
install such additional sheeting and bracing as may be required by the State
of New York Department of Labor, by adverse soil conditions or by the Town
of Milton, but compliance with such orders or failure on the part of the Town
of Milton to exercise its right to give such order shall in no way release
the owner from liability for damage caused by weak or insufficient sheeting
nor from his responsibility to protect the work and adjacent property. Voids
appearing outside the sheeting shall be immediately and compactly filled with
suitable material and to the satisfaction of the Town.
F.
All sheeting and bracing shall be in accordance with
the Industrial Code Rule No. 23 of the State of New York Department of Labor,
Board of Standards and Appeals.
G.
Trench bottoms shall be excavated to conform to the type
of bedding specified for the project.
H.
Where excavations are opened and, in the opinion of the
Town of Milton, the materials in place are not adequate for structural stability
of the completed work, the Town of Milton may order the owner to carry the
excavation to an additional depth and furnish and place concrete cradles,
sand or gravel refill and/or timber and piling foundations.
A.
Excavation and trenches in rock shall be carried to a
depth of 1/4 the diameter of the pipe but in no case less than six inches
below the pipe bottom and shall be made by any acceptable method, including
use of explosives.
B.
Where blasting is necessary, it shall be done by men
experienced in such work. All blasts shall be well covered and
provisions made to protect pipes, conduits, sewers, structures, persons and
property adjacent to the site of the work. Prior to blast, all persons in
the vicinity, but no less than 300 feet, shall be given ample warning. Blasting
will not be permitted between sunset and one hour after sunrise, except with
special permission, nor within 25 feet of the completed work.
C.
All handling and use of explosives shall be in accordance
with Industrial Code Rule Nos. 23 and 30 of the New York Department of Labor,
Board Standards and Appeals, and Article 16 of the New York State Labor Law.
D.
The owner shall secure all permits required by law for
blasting operations and any additional hazard insurance required.
Three batter boards, a top line plumb bob and grade pile shall be used
to transfer line and grade from grade stakes to pipeline unless some other
method of checking the pipe invert grade and line is approved by the Town.
The class of bedding to be used shall be as specified in the final submission
drawings. There shall be excavation for bells and flanges in all classes of
bedding. Beddings for pipe shall conform to one or more of the following:
A.
First-class bedding. First-class bedding is that method
of laying pipe in which the pipe is carefully bedded in compacted granular
materials placed on a flat trench bottom. The granular material shall be crushed
stone, pea gravel or sand, and maximum particle size shall be 3/4 inch. The
depth of the granular bedding below the bottom of the pipe shall be 1/4 the
outside pipe diameter or four inches, whichever is greater, and shall extend
to a point four inches over the top of the pipe. If mechanically tamped, material
may be placed in six-inch layers; three-inch layers if tamped by hand. If
a clean, dry, free-flowing sand is used, no compaction will be required. All
materials up to 12 inches over the top of the pipe shall be placed by hand.
B.
Concrete cradle bedding.
(1)
Concrete cradle bedding is that method of bedding pipe
in which the lower part of the pipe exterior is bedded in plain or reinforced
concrete of 2,500 psi or greater, having a minimum thickness under the pipe
of 1/4 the nominal inside diameter and extending up the sides of the pipe
for a height equal to 1/4 of the outside diameter.
(2)
The cradle shall have a width at least equal to the outside
diameter of the barrel of the pipe plus eight inches, and it shall be constructed
monolithically without horizontal construction joints. The remainder of the
bedding to a point four inches over the top of the pipe shall conform to first-class
bedding.
C.
Concrete encasement. Concrete encasement is that method
of bedding pipe in which the entire pipe is jacketed by plain or reinforced
concrete having a compressive strength of 2,500 psi or greater. The encasement
width and height shall be at least equal to the outside diameter of the barrel
of the pipe plus eight inches or as shown on the approved final subdivision
drawings. Normally stronger pipe should be used, with concrete cradle or encasement
being permitted only in unusual cases.
A.
Pipe shall be protected during handling against impact
shocks and free fall. Pipe shall be kept clean at all times.
B.
The laying of pipe in prepared trenches shall be commenced
at the lowest point, with the spigot ends pointing in the direction of flow.
C.
All pipe shall be laid with ends abutting and true to
line and grade. They shall be carefully centered so that when laid they will
form a uniform invert.
D.
Preparatory to making pipe joints, all surfaces of the
portions of the pipe to be jointed or of the factory-made jointing material
shall be clean and dry. Lubricants, primers, adhesives, etc., shall be used
as recommended by the pipe or joint manufacturer. The jointing materials or
factory-fabricated joints shall then be place, fitted, joined and adjusted
in such a workmanlike manner as to obtain the degree of watertightness required.
E.
Trenches shall be kept water-free and as dry as possible
during bedding, laying and jointing and for as long a period as required.
As soon as possible after the joint is made, sufficient backfill material
shall be placed along each side of the pipe to offset conditions that might
tend to move the pipe off line and grade.
F.
All ends of pipe runs shall be capped with standard stoppers
or with a fitting provided with an approved joint. If stoppers are used they
must be wedged in place with boulders or masonry blocks. Large lines may be
bricked off at the ends or otherwise sealed in a manner approved by the Town
of Milton Engineer.
A.
All backfilling to a point four inches over the top of the newly laid pipe shall be as specified under § 143-37, Bedding. To a point 18 inches over the top of the pipe, there shall be no stones larger than two inches in diameter.
B.
No frozen material shall be used for backfill.
C.
When backfilling in an open-cut across or within the right-of-way limits of any street, road, highway, sidewalk or railroad, the remainder of the backfill shall be select granular material. Compaction for the entire depth shall be as directed under § 143-37, Bedding, or with water if satisfactory drainage is provided for free water.
D.
When backfilling in unpaved areas outside the right-of-way,
the excavated material may be used to complete the backfilling, provided that
all deleterious contents, if any, are removed as directed by the Town of Milton.
The backfill shall be rounded off over the trench not higher than eight inches.
Materials shall be compacted in layers not more than two feet thick by hand
or by machine.
E.
No pipe shall be covered before permission is given by
the Town of Milton.
F.
Under no circumstances shall water be permitted to rise
in trenches before they are backfilled.
G.
Backfilling shall be completed to a point two feet above
the top of all pipe laid each day. Operations shall be scheduled so that the
trench is completely backfilled to within 200 feet of the end of the completed,
installed sewer at the end of each day.
H.
Whenever timber sheeting is driven to a depth below the
elevation of the top of the pipe, that portion of the sheeting below the elevation
of the top of the pipe shall not be disturbed or removed. Whenever timber
sheeting is driven for the protection of trench walls in water-bearing soil,
no portion of such sheeting below a level four feet over the top of the pipe
shall be removed.
Methods of excavation support and backfill in tunnels made beneath existing
structures, railroads, pavements and sidewalks for the installation of pipe
or conduits shall be subjected to approval of the Town of Milton before work
is begun.
Methods of jacking or boring to install pipe shall be approved by the
Town of Milton before such work is started.
A.
All manholes and catch basins shall be precast concrete
construction (Fort Miller or equal).
B.
Precast concrete rings shall be laid with full mortar
joints.
C.
Mortar shall consist of one part portland cement and
two parts clean torpedo sand with 10% hydrated lime added.
D.
Pipe placed through manhole or catch basin sidewalls
and stubs installed for future extensions shall extend through the walls a
sufficient distance to allow connection on the outside. Such pipes shall be
struck smooth on the inside in line with the inside wall of the manhole. The
manhole masonry shall be carefully constructed around all pipes so as to prevent
leakage along the outer surfaces.
E.
Frame castings shall be set in full mortar beds on top
of masonry.
F.
The top four to 12 inches of the manhole directly under
the casting shall be constructed of precast concrete grade rings to provide
for adjustment to grade and future construction. Field cutting of precast
manhole sections shall not be allowed for grade adjustment.
A.
Connections of new lines to existing lines, when encountered
in construction and not shown on the final subdivision drawings, shall be
made where ordered by the Town of Milton. Such connections shall be made within
a manhole or catch basin in the case of sewers or storm drains except for
house sewer and drain connections.
