Plans, specifications and methods of installation shall conform to the requirements of this article. Components and materials of wastewater facilities not covered in this chapter, such as pumping stations, lift stations, or force mains, shall be designed in accordance with §
94-27, and shall be clearly shown and detailed on the plans and specifications submitted for approval. Force main details are covered in §
94-35. When requested, the applicant shall submit to the DPW Superintendent and/or WWTP Chief Operator and to the Clinton County Health Department all design calculations and other pertinent data to supplement review of the plans and specifications. Results of manufacturer's tests on each lot of pipe delivered to the job site shall also be furnished upon request.
Note that sewer pipe and appurtenance installation will be allowed only
from April 1 to November 15 annually. Sewer construction to occur contrary
to the aforementioned construction season will be allowed only when the DPW
Superintendent issues written authorization to proceed.
A. Local utilities shall be contacted to verify construction
plans and to make arrangements to disconnect all utility services where required
to undertake the construction work. The utility services shall later be reconnected.
The work shall be scheduled so that there is minimum inconvenience to local
residents. Residents shall be provided proper and timely notice regarding
disconnection of utilities.
B. The construction right-of-way shall be cleared only to
the extent needed for construction. Clearing consists of removal of trees,
underbrush, logs, stumps, other organic matter, refuse, garbage, trash, ice
and snow, telephone/power poles, and posts. Any tree that does not hinder
construction shall not be removed and shall be protected from damage by construction
equipment. Debris shall not be burned but hauled for disposal in an approved
manner.
C. The public shall be protected from personal and property
damage as a result of the construction work.
D. Traffic shall be maintained at all times in accordance
with applicable highway permits. Where no highway permits are required, at
least 1/2 of a street shall be kept open for traffic flow.
E. Erosion control shall be performed throughout the project
to minimize the erosion of soils onto lands or into waters adjacent to or
affected by the work. Erosion control can be effected by limiting the amount
of clearing and grubbing prior to trenching, proper scheduling of the pipe
installation work, minimizing time of open trench, prompt grading and seeding,
and filtration of drainage.
F. The trench shall be excavated only wide enough for proper
installation of the sewer pipe, manhole, and appurtenances. Allowances may
be made for sheeting, dewatering, and other similar actions to complete the
work. Roads, sidewalks, and curbs shall be cut, by sawing, before trench excavation
is initiated.
G. Under ordinary conditions, excavation shall be by open
cut from the ground surface. However, tunneling or boring under structures
other than buildings may be permitted. Such structures include crosswalks,
curbs, gutters, pavements, trees, driveways, and railroad tracks.
H. Open trenches shall be protected at all hours of the
day with barricades, as required.
I. Trenches shall not be open for more than 30 feet in advance
of pipe installation or left unfilled for more than 30 feet in the rear of
the installed pipe when the work is in progress without permission of the
DPW Superintendent and/or WWTP Chief Operator. When work is not in progress,
including overnight, weekends, and holidays, the trench shall be backfilled
to ground surface.
J. The trench shall be excavated approximately six inches
deeper than the final pipe grade. When unsuitable soils are encountered, these
shall be excavated and replaced with select materials.
K. Ledge rock, boulders, and large stones shall be removed
from the trench sides and bottom. The trench shall be overexcavated at least
12 inches for five feet at the transition from rock bottom to earth bottom,
centered on the transition.
L. Maintenance of grade, elevation and alignment shall be
done by some suitable method or combination of methods.
M. No structure shall be undercut unless specifically approved
by the DPW Superintendent and/or WWTP Chief Operator.
N. Proper devices shall be provided and maintained operational
at all times to remove all water from the trench as it enters. At no time
shall the sewer line be used for removal of water from the trench.
O. To protect workers and to prevent caving, shoring and
sheeting shall be used, as needed. Caving shall not be used to backfill the
trench. Sheeting shall not be removed but cut off no lower than one foot above
the pipe crown nor no higher than one foot below final grade and left in the
trench during backfill operations.
P. The pipe barrel shall be supported along its entire length
on a minimum of six inches of crusher-run, maximum two-inch stone, free of
organic material. This foundation shall be firmly tamped in the excavation.
Q. Bell holes shall be hand-excavated, as appropriate.
R. Pipe shall be laid from low elevation to high elevation.
The pipe bell shall be up-gradient; the pipe spigot shall be down-gradient.
S. The joints shall be made, and the grade and alignment
checked and made correct.
T. The pipe shall be in straight alignment.
U. When a smaller sewer joins a larger one, the invert of
the larger sewer shall be lowered sufficiently to maintain the same hydraulic
gradient. An approximate method which may be used for securing this result
is to place the 0.8 depth of both sewers at the same elevation.
V. Crushed stone shall be placed over the laid pipe to a
depth of at least six inches. The embedment of thermoplastic pipe shall be
in accordance with ASTM D2321 using Class 1A or 1B backfill materials. Care
shall be exercised so that stone is packed under the pipe haunches. Care shall
be exercised so that the pipe is not moved during placement of the crushed
stone.
W. The migration of fines from surrounding backfill or native
soils shall be restricted by gradation of embedment materials or by use of
suitable filter fabric.
X. The remaining portion of the trench above the pipe embedment
shall be backfilled in twelve-inch lifts, which shall be firmly compacted.
Compaction near/under roadways, driveways, sidewalks, and other structures
shall be to 95% of the maximum moisture-density relationship, as determined
by ASTM Specification D 698, Method D. Ice, snow or frozen material shall
not be used for backfill.
All sanitary sewers and extensions to sanitary sewers constructed at
the applicant's expense, after final approval and acceptance by the DPW Superintendent
and/or WWTP Chief Operator and concurrence by the Village of Rouses Point
Board, shall become the property of the Village of Rouses Point and shall
thereafter be operated and maintained by the Village of Rouses Point. No sanitary
sewer shall be accepted by the Village of Rouses Point until four copies of
as-built drawings have been so filed with the DPW Superintendent and/or WWTP
Chief Operator and the DPW Superintendent and/or WWTP Chief Operator has approved
the submitted drawings. Said sewers, after their acceptance by the Village
of Rouses Point, shall be guaranteed against defects in materials or workmanship
for one year by the applicant. The guarantee shall be in such form and contain
such provision as deemed necessary by the Village of Rouses Point Board, secured
by a surety bond or such other security as the Village of Rouses Point Board
may approve. Exceptions to Village ownership of sewerage constructed in accordance
with the above may be granted by the Village Board pursuant to written requests
from the prospective owner(s).