Annual Adaptive Management Report for Compensatory Mitigation at Keyport Lagoon. Mitigation of Pier B Development at the Bremerton Naval Facilities. Compensatory Mitigation at Keyport Lagoon Naval Underwater Warfare Center Division, Keyport, Washington.

摘要

United States Navy capital improvement projects are designed to modernize and improve mission capacity. Such capital improvement projects often result in unavoidable environmental impacts by increasing over-water structures, which results in a loss of subtidal habitat within industrial areas of Navy bases. In the Pacific Northwest, compensatory mitigation often targets alleviating impacts to Endangered Species Act-listed salmon species. The complexity of restoring large systems requires limited resources to target successful and more coordinated mitigation efforts to address habitat loss and improvements in water quality that will clearly contribute to an improvement at the site scale and can then be linked to a cumulative net ecosystem improvement. The MILCON P356 Maintenance Wharf is replacing Pier B resulting in an increase in overwater structure area and subsequent loss of subtidal habitat within the industrial area of Puget Sound Naval Shipyard and Intermediate Maintenance Facility (PSNS&IMF). Under a Memorandum of Agreement between the U.S. Navy and the intergovernmental consultation panel, compensatory mitigation for MILCON P356 Maintenance Wharf must be conducted by removing Pier 8 within the PSNS&IMF and restoring tidal connectivity of an enclosed coastal lagoon located at Naval Undersea Warfare Center-Keyport.