Long Meadow 2 - Pond Decommission
This stormwater pond decommission project was located in Columbia, MD, and was conducted as part of Howard County’s Capital Improvement Program for the construction of new, rehabilitation, modification or reconstruction of stormwater management facilities.
The restoration plans, designed by KCI Technologies Inc., included the removal of an existing embankment, extensive grading within the existing pond to create a wetland cell, and installation of a 200 linear foot regenerative storm water conveyance (RSC) with multiple riffles, step pools, weirs, and sand/woodchip seam.
Ecotone was responsible for implementing the pond decommission design. In order to reduce project costs and increase the sustainability of the project, Ecotone increased stockpile areas for mixing dry material with the extremely wet soil and organics that were removed from the pond. This increase cost-efficiencies by reducing the amount of haul off from the site.
Ecotone was able to manage critical logistics challenges, which included limited access and maneuvering around utilities, in order to complete construction in December 2016.
The restoration project was funded through Chesapeake Bay Trust Fund and the Stormwater Management Division of the Bureau of Environmental Services, Department of Public Works, Howard County, Maryland.
Area before construction.
Ecotone removed the excess silt from the failing stormwater facility and installed a pilot channel to enhance the hydrology of the RSC.
Long Meadow Pond II Decommission project area after construction. A wetland cell and approximately 200 linear feet of a RSC with gabion weirs were installed in December, 2016.