Actively eroded channel prior to restoration
Stone toe protection with bioengineering
Step pool sequence before culvert crossing
Redhouse Run @ Saint Patrick’s Road Stream Restoration
(BALTIMORE COUNTY, MD)
Baltimore County Department of Pubic Works
Construction: March 2011 Planting: April 2011
Estimated Project Cost Construction: $594,000
Ecotone was responsible for the stream restoration of Redhouse Run located in Baltimore County. This included the installation of stone toe protection, imbricated wall, and riffle grade controls to Redhouse Run. The project restored approximately 2,500 linear ft of eroded streambank, approximately 187,000 square feet of the 100-year flood plain, and created a small wetland area adjacent to the stream to filter runoff from existing outfalls. Ecotone began restoring the stream in October 2010 and construction was completed in March 2011. Following the completion of construction, planting of the forest buffer was implemented in April 2011.
The existing stream channel was highly degraded and entrenched with banks that were eroded up to 15 feet in height in some areas. Restoration concentrated on creating a more stable channel with an associated floodplain to convey flashy flow regimes associated with the urban surroundings and to accommodate discharges. Channel stabilization techniques included stone toe protection, imbricated wall, step pool sequence, coir matting, and the installation of live stakes. The stream banks were also graded to allow the stream to access its floodplain. Willow and dogwood live stakes, soil stabilization matting and riparian seed were installed along the restored streambank. The site was planted with native tree and shrub species at approximately 450 stems per acre.