DLZ was retained by Lawrence County to prepare the design for the replacement of the Williams Covered Bridge (Lawrence County Bridge No. 128). The project consists of constructing a new vehicular crossing over the East Fork of White River, approximately 330 meters downstream of the existing covered bridge. The new bridge is being constructed to remove vehicular traffic from the covered bridge, to assist in preserving the Williams Covered Bridge, which is currently the longest covered bridge in the country still in service. The Williams Covered Bridge, which was built in 1884 by J.J. Daniels, is listed on the National Register of Historic Places. The bridge carries Huron and Williams Road over the East Fork of White River, near the Town of Williams, in Lawrence County, Indiana.
The project consists of performing topographical survey; environmental document, including Section 106 coordination, archaeological reconnaissance and a mussel survey; location design study report; design; construction plans and right-of-way plans. The new bridge will consist of a five span, continuous, composite, pre-stressed concrete bulb-tee beam bridge. The new bridge will be 191 meters in length with spans of 37 meters, 3 @ 39 meters, and 37 meters. The project also involves reconstructing approximately 630 meters of roadway.