Subdivision Stream Restoration -
Scope of Work
This project, located in the headwaters of Mill Creek, consists of the stabilization of an outfall channel and stream banks to reduce erosion caused by uncontrolled runoff from the upstream development. In addition, a short section of stream channel will be created to improve drainage and reduce flooding. This project will stabilize the eroding stream and protect adjacent properties from undermining and flooding. The stream stabilization will provide significant water quality benefits and contribute to meeting the County’s permit obligations for the Chesapeake Bay Total Maximum Daily Load (CBTMDL) requirements.
- Civil Engineering Design: Complete
- Bidding: Complete
- Construction began April 17, 2017
- Substantial completion: Aug. 15, 2017
- Final completion: Feb. 21, 2018
- Estimated Budget - $400,000
- Kerr Environmental Services - $70,391
- Contract payments and percent completed - $69,507 - 98.7%
- Finish Line Environmental - $484,457.24
- Contract payments and percent completed - $484,457.24 - 100%
- Additional services - $9,753
- Purchase Order issued for design work.
- Field delineation of wetlands and waters of the United States completed.
- Project field survey complete.
- Final design completed and approved.
- All necessary easements acquired.
- BOS approved contract award for construction at Feb. 14, 2017 meeting.
- Construction began April 17, 2017 with clearing activities.
- Project was substantially complete on Aug. 15, 2017.
- Completed punch list items - Oct. 2, 2017.
- As-built plans submitted and approved - Nov. 30, 2017
- Woody/shrub vegetation (live stakes) plantings done - February 2018
- Difficult construction access through private property.
- Problematic soil conditions and excessive spring rainfall.