This federal contract opportunity solicitation seeks stabilization repairs and seismic improvements to the Alcatraz Wharf located within the Golden Gate National Recreation Area. Work will include repairing the historic steel-cased concrete piles, concrete beams, and concrete slabs that are in fair to poor condition, as well as installing two new seismic resisting elements to strengthen the wharf to Risk Category III standards. The single-phase project will be undertaken by the Department of the Interior National Park Service National Office under Solicitation Number 140P2021R0143. Repairs and improvements are critically needed to address damage and bring the contributing wharf structure into compliance with current seismic codes.