Unstable eroding banks prior to restoration
Log vane deflector
(1 year post construction)
Bioengineering along Hollow Run
NIXON PARK STREAM & RIPARIAN BUFFER RESTORATION
(YORK COUNTY, PA)
Watershed Alliance of York, Inc.
118 Pleasant Acres
York, PA 17402
Construction: May 2011
Planting: June 2011
Estimated Project Cost
Entire Project: $115,000
Work for which firm was responsible: $115,000
Ecotone was responsible for assessment, design, permitting, construction, and three (3) years of monitoring for the restoration of Hollow Run at Nixon Park. The project involved restoring 1,290 linear feet of stream channel and removing approximately 2 acres of invasive species in the riparian buffer. The restoration design was completed in December of 2010 and Ecotone worked with the Pennsylvania Department of Environmental Protection and the U.S. Army Corps of Engineers to expedite the permit process to ensure that the project would be completed before the grant period expired. Construction was completed in June 2011, and monitoring is ongoing.
The restoration of Hollow Run, a tributary to East Branch Codorus Creek, focused on stabilizing streambanks and restoring habitat using structural and bioengineering methodologies. Throughout the limits of disturbance and 25 feet beyond, invasive species including Oriental bittersweet, common privet, and multiflora rose were eradicated.
These areas along with all areas disturbed during construction activities were reforested with native trees and shrubs at 230 stems per acre. In addition, a detailed invasive species management plan was prepared and given to York County Parks as a basis for long term restoration of native species within the park. Construction was completed by Ecotone in May 2011 and planting also occurred that spring. Follow-up invasive species treatments were ongoing