Overview
Timmons Group provided design services to repair four bridges in the City of Charlottesville. The contract is one of the first to be funded with State of Good Repair (SGR) funds provided by VDOT to localities for bridge maintenance, and Timmons Group is assisting the City in navigating the process.
Repairs include steel beam end repairs and replacements, concrete patching, bearing repairs and replacements, deck replacement, and erosion mitigation. Design work included development of load rating analyses of the bridges. Timmons Group’s additional responsibilities include coordinating subconsultants performing materials testing and construction inspection, coordinating access with Norfolk Southern Railroad, and coordination with VDOT on applicability of specific repair items for SGR funding. Timmons Group also worked with the City to use the project as an outreach opportunity, and was able to invite local high school students to observe a portion of the inspection work and learn about the basics and importance of repairs being done.
Route 250 Bypass over Rugby Ave – A three-span steel beam bridge constructed in 1970, with significant corrosion and section loss at the beam ends due to leaking joints at the piers and abutments. The proposed repairs include beam end replacement/repairs, bearing replacement/repairs, patching of spalls on the concrete deck, repair of substructure spalls and cracks, and steel beam painting.
Route 250 Bypass over Emmett Street – A four-span steel beam bridge built in 1970, with corrosion and section loss at the beam ends. The proposed repairs include beam end replacement/repairs, bearing replacement/repairs, patching of spalls on the concrete deck, repair of substructure spalls and cracks, and steel beam painting.
Route 250 Bypass over Norfolk Southern Railroad – A four-span reinforced concrete T-beam bridge, built in the 1950’s. Typical deteriorations include spalling and exposed reinforcing steel in the concrete deck and beam ends at joint locations. A critical finding was found during the in-depth inspection, resulting in a temporary sidewalk closure and emergency repair to re-open the sidewalk. Additional repairs will include concrete patching on deck and beam ends, bearing replacement/repair, and repairs to concrete substructure.
Melbourne Road over Norfolk Southern Railroad – A three-span continuous steel girder bridge constructed in the 1970’s. The non-composite concrete deck exhibits large areas of delamination and spalling and signs of chloride contamination. Concrete samples of the deck were analyzed to determine chloride content to determine if a full deck replacement is warranted, or if a hydro demolition of the top of the deck is feasible with concrete overlay.
