Quaker Mill Mitigation Pond Project
Client: Howard County
The Quaker Mill Mitigation Pond Project transformed an existing, severely eroded stormwater management pond and degraded, constrained stream into an ecologically enhanced, flood attenuation facility that delivers much needed flood relief to Ellicott City. The project is located at the intersection of Rogers Avenue and Patapsco River Road and is one of five projects identified in Howard County’s Safe and Sound Plan. As a significant component of the Plan, it was designed to address the Plan’s major priorities, including ensuring public safety, supporting business and property owners, and maintaining Ellicott City’s historic charm.
The project area suffered from significant connectivity, erosion, and instability challenges for many years. The existing stormwater management pond embankment was severely deteriorated, with a corroding principal spillway, and an embankment that had been actively eroding due to the stream running along the toe. To address the stream and stormwater issues, an uncommon facility was designed and permitted resulting in numerous benefits for the community.