SR 4073 over PA 56 Bridge Replacement

Pennsylvania Department of Transportation is requesting sealed bids on the replacement of the State Route 4073 bridge over State Route 56 in Westmoreland County, Allegheny Township, with bids due October 22, 2026 at 11:00 a.m. This is a 100% state-funded, non-federally funded Standard bridge replacement. Prequalification is required.

The scope includes complete structural replacement, reconstruction of approach roadway, drainage upgrades, signing and pavement marking, guide rail installation, and miscellaneous construction from the SR 4073/Bonfire Shortcut Road intersection to east of the SR 4073/Williams Road intersection. Specifications include detailed requirements for asphalt paving, concrete work, erosion and sediment control, traffic control, bridge construction, drainage systems, pavement markings, and safety features. Contractors must comply with prevailing wage and Pennsylvania Worker Protection and Investment certification. The contract mandates electronic ticketing systems for aggregate and concrete deliveries, mandatory pre-drilling for piles, underdeck protective shielding, and post-construction stormwater management with infiltration testing.

Significant liquidated damages apply: $350 per day for SR 4073 closures after 129 calendar days and $7,000 per day for SR 56 closures after 36 calendar days from detour implementation. Structure work comprises 72% of the contract. The estimated project cost ranges from $2.5 million to $4.999 million. The Notice to Proceed is anticipated December 7, 2026, with required project completion by November 4, 2027.

Two addenda have been issued. Addendum 1 deleted one specification change; Addendum 2 modified Road User Liquidated Damages provisions and added cement concrete specifications. Public bid opening will be held at the Commonwealth Keystone Building, 7th Floor, Contract Awards Room, 400 North Street, Harrisburg. The bid package was originally posted September 14, 2026.