New Hampshire Statewide Bids and Proposals #RFP F&G 2026-02

Engineering and Design Services for Stream Crossing Replacement at Scott Bog Spur Road, Pittsburg, NH

This opportunity seeks professional engineering and design services for the replacement of a damaged stream crossing on Scott Bog Spur Road in Pittsburg, NH. - Government Buyer: - New Hampshire Fish and Game Department (NHFG) - OEMs and Vendors: - ADM Welding and Fabrication (mentioned as an example for prefabricated bridges; no specific OEM mandated) - Products/Services Requested: - Hydrologic and hydraulic study of the crossing and watershed - Architectural and engineering study for removal and replacement of the stream crossing - Design services for detailed plans (permitting and construction) - Technical support during construction (as needed) - Replacement structure options include: - Fully engineered, prefabricated bridge (e.g., 16-foot wide, as provided by ADM Welding and Fabrication or similar) - Open bottom culvert - Larger squish culvert - Unique/Notable Requirements: - New crossing must meet HS-20 load rating (supporting vehicles up to ~100,000 lbs) - Design must allow for aquatic organism passage and minimize wetland impacts - Plans must be suitable for NHDES wetlands permits and FEMA requirements - Contract is exclusive to the selected vendor; no ongoing monitoring required - Technical support during construction is only as needed - No specific OEM is required, but ADM Welding and Fabrication is cited as an example for prefabricated bridges

Description

The New Hampshire Fish and Game Department is soliciting proposals from professional licensed engineers for a hydrologic and hydraulic study, architectural and engineering study, and design services to replace a damaged stream crossing structure over Scott Brook on Scott Bog Spur Road in Pittsburg, NH. The project involves removing a damaged 6-foot culvert and replacing it with a larger squish culvert, open bottom culvert, or free span bridge that meets HS-20 load rating and supports vehicles up to 100,000 lbs. The design must allow aquatic organism passage, ensure public and dam maintenance safety, and minimize wetland impacts. The selected vendor will provide detailed plans suitable for permitting and construction.

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