Epstein provided civil, mechanical, electrical and structural engineering services for the design/build replacement of a 300-foot Span of D Street across a 30-foot ravine and Pettibone Creek at the Great Lakes Naval Station. The existing 50-year old two-lane bridge consisted of three spans of reinforced concrete beams monolithic with the deck. Existing water, gas, steam, condensate, electrical and communication utilities were suspended from the deck for the full length of the bridge.
The replaced bridge is a two-lane, three-span, precast, post-tensioned Bulb-T beam superstructure with a cast-in-place deck. The D Street Bridge substructure was replaced down to footings and the existing footings were extended and reused.