AIRPORT BRIDGE EB & WB, located in Greenbrier County, West Virginia. These twin structures carry Interstate 64 (I-64) EB (BARS # 13A161) & WB (BARS #13A162) over a pair of CSX railroad tracks and are located approximately 0.80 mile east of County Route (CR) 60/14. Constructed in 1965, the existing bridges have an overall length of approximately 259.4 feet and a roadway width of approximately 30 feet. This project shall consist of the preparation of contract plans, traffic engineering services, and related documents for the replacement of the superstructures at their existing locations, while maintaining traffic via staged construction. A Design Study will not be a part of these services. The Consultant shall reference DD-681 and develop the appropriate Traffic Management Plan, which will also be required. The Consultant shall reference DD-506 and use pollution prevention and discharge reduction methods in the design.