Frederick, Seibert & Associates, Inc. - Civil Engineering, Surveying, Landscape Architecture - Maryland, Pennsylvania, West Virginia, Virginia


Raven Rock Creek Dam Removal and Fish Passage

Client Type: Environmental
Service Performed: Environmental


The U.S. Fish and Wildlife Service determined to fund the removal of the dam on Raven Rock Creek. The removal of this low head dam required that the existing water bypass pipe which draws water for a City of Hagerstown reservior, be allowed to continue it's operation while maintaining a specified minimum flow within the channel. In conjunction with Environmental Services, Inc., the team at FSA provided hydraulic calculations, engineering guidance and design drawings for this environmentally friendly project. Utilizing natural channel design methodology, FSA and ESI designed three rock structures which replaced the dam and allowed for the passage of native fish species.

Each year, the Raven Rock Fish Passage project is featured on a tour for one of Dave Rosgen's week long training courses on Natural Channel Design. Dave Rosgen has championed Natural River Design and leads the industry in training and methods for Stream Restoration nationally. Dave features this project as well as the Beaver Creek Stream Restoration project, both of which have been designed by Frederick, Seibert and Assoicates. Dave Rosgen's company is Wildland Hydrology .