Laconia Civicplus #436

Replacement of Weirs Boulevard Bridge with Precast Concrete Box Culvert in Laconia, NH

The City of Laconia Public Works Department is seeking bids for the replacement of the Weirs Boulevard Bridge over Langley Brook. - Project scope includes: - Removal of the existing single-span jack arch superstructure and expanded cast-in-place concrete slab - Installation of a 14-foot span by 7-foot rise by 59-foot long precast concrete clamshell box culvert - Replacement of gravity and force main sewer lines - Replacement of water mains - Limited roadway approach work (approx. 108 feet north and 135 feet south of the bridge) - Bidders must be prequalified by the New Hampshire Department of Transportation (NHDOT) in bridge, bridge rehabilitation, road, water, and sewer classifications - Written documentation of prequalification is required - Bidding documents are available electronically at no cost from Hoyle, Tanner & Associates, Inc. - No specific OEMs or vendors are named in the solicitation - Notable requirements: - Prequalification by NHDOT - Replacement of multiple utility lines alongside bridge construction - Use of precast concrete box culvert for bridge replacement

Description

This solicitation is for the construction of the Weirs Boulevard Bridge over Langley Brook in Laconia, NH. The project involves replacing the existing bridge superstructure with a precast concrete clamshell box culvert and includes sewer and water main replacements as well as roadway approach work. Bids are to be submitted by July 10, 2026, and must be from contractors prequalified by NHDOT in relevant classifications. Bidding documents are available electronically at no cost from the issuing office.

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