LITTLE BLACKWATER STREAM & WETLAND RESTORATION
Ecotone was responsible for creating and implementing a comprehensive habitat based site design to restore the 735 acre Little Blackwater Egypt Road site, located adjacent to the Little Blackwater River and Maple Dam Branch in Cambridge, Maryland. Project elements included converting agricultural ditches to stable head water swamp run riverine wetland systems to maximize water quality improvement and create diverse wetland hydrology and habitat, creating wetland areas to intercept runoff from roadside ditches, plugging agricultural ditches to restore diverse wetland hydrology, creating a mosaic of upland and wetland habitats, providing expanded forested and grass buffers and meadow areas, reforestation, and the continued use of portions of the site for agricultural production.
The swamp run areas of the site were designed to pass the 20-year storm from an adjacent developed site, while providing maximum water quality and wildlife habitat benefits. Cobble weirs and terraced cells were designed to attenuate flows and provide infiltration. Wetland areas include both palustrine emergent and forested areas. The site was designed with the continued agricultural uses and adjacent proposed development in mind. Elements were sited to filter runoff from crop fields while providing critical habitat historically degraded in the region, and all constructed swamp run waterways were designed to maximize habitat for native wildlife.
Ecotone completed all major earth work on the site in November 2008, and completed stabilization of the site in April 2009. Wetland hydrology was immediately evident, and wetland volunteer species had begun to colonize the site. Planting was completed in the Spring of 2009.