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The scope of work for the entire project includes the Phase II design engineering for the construction of a new 590-foot tie-arch Illinois River Bridge approximately 255 feet North of the existing bridge, new roadway approaches on new alignments, the reconstruction of existing IL-104 from IL-99 to Maple Street, and the resurfacing of existing IL-104 from Maple Street to US-67. The improvements also include the widening and reconstruction of the IL-104 Bridge over the McGee Creek Drainage Ditch, mechanically stabilized earth retaining walls at the east approach of the Illinois River Bridge, a new bridge over Washington Street, reconstruction of the intersection of IL-99, and the reconstruction of Main Street and the connection at Marion Street, a new pumping station, a new drainage system and roadway lighting.

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As a sub-consultant to exp U.S. Services, Garza Karhoff Engineering served as the Structural Engineer of Record for the design and construction plan development of the new single span bridge (SN 069-0522) that carries IL-104 over Washington St. at Meredosia. The bridge consists of a typical 8-inch composite concrete deck with W27 beams supported on pile bent abutments. The bridge width is tapered from 55 ft. to 58 ft. wide and spans 59.5 ft. The flanking MSE Retaining Walls wrap around the bridge abutments and decorative precast panels are located at the corners.