To:
From:
Re:
B. Motion:
Discussion:
City of Nashua, Public Works Division
Board of Public Works Meeting Date: June 28, 2018
Stephen Dookran, P.E., City Engineer
Engineering Department
Canal St Bridge Improvements
Bridge Engineering Services
To approve the contract for bridge engineering services for the Canal Street Bridge
Improvements to CLD/Fuss & O’Neil of Manchester, NH in the amount of
$42,543. Funding will be through Department: 161 Streets; Fund: Capital; Activity:
Bridge Rehabilitation.
The Canal Street Bridge is part of the east/west commuting system between Nashua and
Hudson that sees approximately 20,000 vehicles per day. Like all municipally owned
bridges, it receives routine inspections by the NHDOT. The bridge, built in 1928, is
seeing substantial deterioration. While the deck and superstructures have a rating of 6
(satisfactory), the substructure is suffering with a rating of 4 (poor) and consequently,
the NHDOT has put the bridge on its Red List. Prompt attention is warranted for repair
to the substructure of this bridge. Of concern is the deterioration of the east abutment
concrete wall and some deterioration of the concrete pier. CLD/F&O recently
conducted a geotechnical investigation at the abutment walls and concluded that the
water trapped behind the walls have promoted deterioration over the years. The nature
of the distresses requires specialized technical expertise in bridge repairs. A design of
the plan to drain the impounded water and for the structural repairs is needed.
CLD/Fuss & O’Neil of Manchester, NH has a long history of designing bridge work
including the recent Manchester Street Bridge project and the Pennichuck School
Pedestrian Bridge over Henri Burque Highway. Engineering has negotiated a contract
with CLD for $42,543. This includes development of the specialized detailed drawings
and contract documents, bidding assistance and construction engineering services.
