SECTION 02651
CURED-IN-PLACE (CIPP) LINING OF EXISTING SEWERS
(ULTRAVIOLET CURING)
PART 1 GENERAL
1.01 DESCRIPTION
A.
SCOPE
The work consists of furnishing all labor, equipment, materials, and incidentals
required to rehabilitate existing sewer mains by the installation of cured-in-place
pipe (CIPP) into the existing main. Work will include bypass pumping, sewer
cleaning and root cutting including decanting and disposal of debris at the City
landfill, initial closed circuit television (CCTV) inspection, identification of
existing live taps, removing of protruding taps by remote methods, installation of
resin-impregnated tube into the existing pipe followed by ultraviolet curing as
specified by the resin manufacturer, reopening service taps into the line, sampling
and testing, final closed circuit television (CCTV) inspection, and all other related
work. Before final acceptance of each line segment, a post-rehabilitation video
inspection and sample testing must be conducted and approved. Rehabilitation
must be completed for the full length from the manhole to manhole, resulting in a
sound, tight-fitting water-tight liner with a smooth interior surface. All such work
shall comply with these specifications and the specific product manufacturer’s
recommendations. Any conflict between the product manufacturer’s
recommendations and any portion of the contract documents shall be resolved
with the Engineer prior to proceeding with the work.
The Contractor, or the sub-contractor(s), shall not change any material, design
values or procedural matters stated or approved herein, without informing the
Engineer and receiving written advance approval of the change
Note:
Reference is made to the Supplementary Conditions Section A. Prosecution of
Work for a description of the process by which the Engineer will direct the
Contractor to make spot repairs both before and after lining.
SAFETY
This standard does not address safety problems associated with the use of this
product. It is the responsibility of the Contractor to establish appropriate safety
and health practices and determine the applicability of regulatory limitations prior
to use.
1.02 RELATED WORK:
2019 CIPP Lining Project CIPP Lining of Existing Sewers (Ultraviolet)
Nashua, NH
02651-1
