To:
From:
Re:
HK. Motion:
Discussion:
City of Nashua, Public Works Division
Board of Public Works Meeting Date: July 26, 2018
Stephen Dookran, P.E., City Engineer
Engineering Department
2018 CIPP Lining
Change Order No. 1
To approve Change Order No. | to the construction contract for the 2018 CIPP Lining
with Layne Inliner of Fairfield, ME in the amount of $ 120,000. Funding will be
through: Department: 169 Wastewater; Fund: Wastewater; Activity: Sewer Rehab.
When addressing failing and aging sewers, rehabilitation of the sewers using cured-in-
place pipe lining (CIPP) is more cost effective than excavating and replacing the pipe.
Layne Inliner was awarded the contract to line approximately 6,200 feet of sewer in
April 2018. Since that time, the Wastewater Department has continued to video inspect
sewer lines and have found at least two additional pipes that require rehabilitation due
to deterioration in the pipe. The pipe located in Charles Street, constructed 1886 to
1922, has had a recent sinkhole and video inspection has shown the entire segment from
Fairmount to Franklin requires rehabilitation. Also, the sewer in C Street, constructed in
1892, also has been identified as needing immediate rehabilitation. This request is an
estimate for the work in these additional streets and further finding may require
additional funding.
In addition, a part of this change order is increase in the contract duration. The contract
completion date was originally October 6, 2018 and will now be extended to December
31, 2018.
With this Change Order No. 1, the total value of the contract is $ 835,657.50.
