This project involves the rehabilitation of the Freeport Bridge carrying Traffic Route 356 over the Allegheny River, ConRail Tracks, Township Road 784, S.R. 2019 and Buffalo Creek. The bridge consists of 29 northbound spans and 24 southbound spans. The bridge features a three-span continuous steel deck truss unit with spans of 310, 452, and 311 feet over the Allegheny River. The south approach has five spans consisting of single span steel multi-girders and the north approach has 21 northbound spans and 16 southbound spans, all consisting of single span steel multi-girders. The bridge was built in 1962 and the project length is 3,700 feet. The roadway width on the structure is 54 feet and the out-to-out width is 63 feet which includes a 5-foot sidewalk and four lanes of traffic.

Modjeski and Masters, Inc., as prime consultant, is leading the design team through preliminary engineering, final design, and services during construction under a Multi-Phase Agreement and employing the Open Plan Software by WELCOM. Specific tasks include:

• NBIS and Bridge Rehabilitation Inspection
• Alignment and ROW Studies
• Public Involvement
• Geotechnical and Environmental Studies
• Widening, Redecking, and Strengthening Studies
• Load Rating, Redundancy Analysis, Fatigue Analysis
• Seismic Analysis
• Pavement Rehabilitation
• Bridge and Surface Drainage Design
• Bearing Replacement
• Maintenance and Protection of Traffic Plans
• PS&E Package