Microbioretention Green Infrastructure BMPs

Location: Maryland; United States; North America

Cardno provided innovative microbioretention and biological stormwater Best Management Practices (BMPs) for the new Southern Maryland Electric Cooperative’s Facility Headquarters.

The design featured a stormwater treatment train approach to treat stormwater before it leaves the site. The treatment train has 25 microbioretention areas, which provide over 35,000 cubic feet of storage to meet the local Water Quality Volume requirement. Pervious pavement, grass pavers, constructed wetlands, and bioretention BMPs were integrated in the design to store, infiltrate and assimilate runoff from the 12.58 acre area prior to release into the surrounding sensitive and protected forested wetlands.

The design specified native planting plans, which provide hydrologic and ecological benefits and fulfill the stormwater management requirements of the state and county.

Cardno provided construction observation, oversight of post-construction stormwater BMPs and native landscaping, and construction administration services to CDS Associates and the installation contractor.

The project received LEED-Gold certification for New Construction and was awarded the 2012 Green Energy Innovation Award for Excellence in Green Building from the US Green Building Council Maryland Chapter.