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APM Terminal - Tidal Mitigation
City of Portsmouth, Virginia

Showcases:
James River Mitigation LandBank
APM Terminal - Maersk
York River Mitigation Bank

The APM Terminal project involves the creation of a 570-acre marine terminal along the Elizabeth River in Hampton Roads, Virginia.  The project encompassed overall environmental assessment and permitting support for impact to 189 acres of submerged bottomland and over 23 acres of jurisdictional wetlands including the dredging of 10.3 million cubic yards of material to support Suezmax vessels. As a component of the required mitigation for a new marine termianl, Williamsburg Environmental Group, Inc. (WEG) provided environmental assessment design and oversight necessary to create 17.44 acres of tidal marsh.  The mitigation is segregated into four areas which vary in size from 2 to 7.92 acres.  All are located on, or immediately adjacent to, the terminal in an effort to effectively replace the function lost due to unavoidable impacts incurred during construction.

WEG carried out extensive studies of the existing tidal marshes on the property.  Species composition and elevations of various vegetation were documented so that the created wetlands would recreate the growing conditions within the desired communities to the greatest extent possible. Channels were strategically placed within each cell to aid in the exchange of water during tidal cycles as well as to create a barrier for the spread of invasive species through rhizomes.  This attention to detail was carried on during the construction phase of the project as WEG provided oversight throughout.  Elevation control within each cell was critical to achieve the project objectives.  WEG is currently providing all services related to monitoring and reporting of the success criteria outlined in the project permits.

WEG also performed a detailed wetland delineation (tidal and nontidal) on the entire project site, that was subsequently confirmed by the U.S. Army Corps of Engineers.  WEG then provided environmental services necessary to obtain regulatory approval of this project, including; habitat assessments, Resources Protection Area (RPA) determinations in compliance with the Chesapeake Bay Preservation Act, sediment analysis and testing, wetland mitigation feasibility, design and construction document approval, endangered species determinations, historic resource assessments, and overall regulatory coordination.

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