To:
From:
Re:
G. Motion:
Attachments:
Discussion:
City of Nashua, Public Works Division
Board of Public Work Meeting Date: March 24, 2016
David A. Simmons, Superintendent
Wastewater Department
Additional Work by Crisp Contracting for Newton Drive Forcemain
To approve Change Order #1 to the purchase order to Crisp Contracting of Nashua, NH
in the amount of $5,400 for the Newton Drive Force Main repairs. Funding will be
through: Department: Department: 169 - Wastewater; Account Classification: 54
Property Services.
Crisp Contracting Additional Costs
Bids were sought from 3 contractors in February to replace the forcemain at Newton
Drive. The original forcemain was installed in 1966 and has numerous holes in it. Crisp
Contracting was the low bidders to replace the entire forcemain from outside the pump
station into the upstream manhole for amount of $9,900. The forcemain was installed on
March 3-4. However, the work could not be completed since the existing forcemain was
encased in concrete just outside the pump station precluding the Contractor from
connecting to the outlet pipe from the interior manifold piping.
The additional costs are to core a new hole into the pump station, cut the interior
manifold pipe, and install a new section of manifold piping from the existing manifold to
the new forcemain. The price includes all materials, by-pass pumping and any other
costs. In addition, a new hole will be cored into the upstream manhole to better align the
forcemain flow with the existing flow through the manhole. This additional work comes
to $5,400. The new forcemain cannot be put into service until this additional work is
completed.
Final contract amount will be $15,300.
