Arlington National Cemetery Millennium Project Stream Restoration
Arlington County, Virginia
Owner: U.S. Department of the Army
Based on current estimates, Arlington National Cemetery (ANC) will run out of internment spaces by 2025. This project will provide a combination of columbarium, casket in-ground burials, and cremated in-ground burials, totaling 27,000 additional burial spaces extending the life span by an estimated 7-12 years. Wetland Studies and Solutions, Inc. (WSSI) has performed numerous tasks in support of the Millennium Project, including a stream restoration design for ± 1,900 linear feet of degraded stream channel that will serve as a prominent natural landscape amenity for the project. In support of the design, WSSI developed 6-inch contour interval topography and performed a tree survey. WSSI has also been instrumental in obtaining approval of the project from various regulatory agencies related to impacts to Waters of the United States (WOTUS), encroachments into the Resource Protection Area, and assistance with various studies included as part of the Environmental Assessment prepared by the U.S. Army Corps of Engineers.
WSSI also designed an underground stormwater management (SWM) facility to reduce flow rates from a parking lot on ANC property that discharges on to National Park Service property. The outflow from the facility was reduced to that of a forested condition using the Energy Balance method of SWM. WSSI also developed a restoration design for the eroded outfall channel utilizing Regenerative Stormwater Conveyance design methodologies. The stream restoration and stormwater management facility are complete. WSSI’s current role is to provide periodic site inspections as requested by the client while the remainder of the site is under construction.