Prior to construction and delivery of materials, the Contractor shall obtain
the necessary permits and details or traffic flag persons, as appropriate.
1.
It is the intent of this contract that traffic be maintained at all times
in the areas of construction. The Contractor may be required to
halt operations and/or transport material to areas beyond immediate
work locations in order to allow minimum traffic disruptions.
Access to the site by emergency vehicles, school buses, and
residents shall be maintained at all times.
The Contractor shall submit a work plan to address the items specified
below, unless approved otherwise by the Owner.
1.
Safety - The Contractor shall carry out operations under this
Section in strict accordance with all applicable OSHA, State, and
local standards. Particular attention is drawn to those safety
requirements involving work with entry into a confined space. It
shall be the Contractor's responsibility to comply with OSHA and
NStar Electric’s standards and regulations pertaining to all aspects
of the work.
Pre-Installation Television Inspection - It shall be the responsibility
of the Contractor to video (TV) inspect the sewer pipe immediately
before pneumatically assisted sliplining, to assure that the existing
pipe conditions are acceptable for sliplining, and to locate all active
service line connections. This inspection, as well as the video
(TV) inspection after the installation, shall be paid for as per bid
item, or as directed by the Owner.
Cleaning - The Contractor shall clean the host pipe prior to
commencing pneumatically assisted sliplining operations. The
cleaning shall be sufficient to conduct pneumatically assisted
sliplining operations and to televise the host pipe to identify and
locate service connections. No additional compensation will be
made if the pipe is not sufficiently cleaned. The Contractor shall
be responsible for the proper transport and disposal of all debris
and material cleaned from the sewer.
Bypassing of Flows- When required for acceptable completion of
the pneumatically assisted sliplining, the Contractor shall provide
for continuous sewer and drainage flow around the section(s) of
pipe designated for the installation of renewal pipe. The pump
bypass lines shall be of adequate capacity and size to handle flow.
Sags in Line - If pre-installation video (TV) inspection reveals a
sag in the existing sewer that is greater than one-half the diameter
02769-10
