Retrofit

The Glenmont Forest Green Streets project was completed by the Montgomery County Department of Environmental Protection to reduce stormwater runoff and pollutant loading to the receiving stream and to help meet the County’s MS4 permit and TMDL requirements. This innovative green streets project installed ESD stormwater management facilities along residential streets throughout the Glenmont Forest and Wheaton Hills neighborhoods, within the existing public right-of-way. Working with a dedicated community and local nonprofits, Montgomery County DEP completed this retrofit to add ESD stormwater facilities within a developed urban environment with minimal existing stormwater infrastructure to provide water quality improvement and enhance neighborhood aesthetics.

The Willow Pond Retrofit and Stream Restoration project included the retrofit of the existing wet pond stormwater management facility to an innovative gravel lens system that would filter water through gravel and underdrains, reducing the water temperature discharged from the facility. The project included 1,700 linear feet of stream restoration along with restoration of the natural floodplain. The design utilized a structure engineered to intercept the floodway, diverting flood flows into the stormwater pond, while still maintaining the base stream flow within the channel.