Tetra Tech INCA prepared design memorandums and final plans and specifications for the upstream guard wall and upstream guide wall at the Marmet Lock, on the Kanahwa River. The first phase of the work consisted of preparing a screening level study of two alternatives in sufficient detail to determine a relative cost estimate for each alternative.

The precast concrete beams were designed for an optional segmental construction to facilitate a smaller fabricator, handling, and transport. Pier cap beams were designed as precast shells to improve constructability and reduce on-site construction time. Finite element analysis was used for the design of the structure and foundation, including 3-D modeling using SAP 2000 for the girders and cap beam supports.