Description
The Missoula County Public Works Department is soliciting bids for the complete replacement of the Lolo Street Bridge, associated roadway reconstruction, and a new water‑main installation. The work includes demolition of the existing bridge, construction of a new prestressed‑concrete girder bridge (≈ 95 ft span), full removal and replacement of pavement, curb, gutter, sidewalks, utility relocations (power, gas, communications, water), extensive erosion‑control, environmental mitigation for Bull Trout and Kootenai Sturgeon, and compliance with federal‑aid, Davis‑Bacon, Build‑America‑Buy‑America, and DBE requirements. Bidders must attend a mandatory pre‑bid conference, submit a 10 % bid bond, and provide required performance/pay‑bond and insurance. The contract will be awarded on a lump‑sum basis with a 400‑day substantial‑completion schedule.
• Bridge demolition and new prestressed‑concrete girder bridge construction (abutments, bearings, railings).
• Full roadway and pavement reconstruction, curb‑and‑gutter, sidewalks, ADA‑compliant curb ramps, and traffic‑control upgrades.
• Installation of a 12‑in. Class 350 ductile‑iron water main suspended from the new bridge, plus related utility relocations.
• Comprehensive environmental measures (stream‑habitat protection, bio‑engineering, seeding, riparian restoration).
• Mandatory compliance with FHWA‑1273, Davis‑Bacon wage rates, BABA, DBE participation, and extensive insurance/bonding requirements.