The Peppercorn Drive Outfall Restoration project in Fairfax County, VA was completed in August 2015. The project involved installing a drop inlet structure, extending the storm sewer pipe, and adding a concrete end wall and step pool system to stabilize an eroded outfall between two properties on Peppercorn Drive. The project team extended the existing storm pipe, constructed a plunge pool and two step pool structures using stone, and stabilized the channel banks with grading and coir matting.

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
Peppercorn Drive Outfall Restoration
Project Number SD-000031-043
Braddock District
December 16, 2015

2. Peppercorn Drive Outfall Restoration
Maintenance and Stormwater Management Division 2

3. Project Details
Peppercorn Drive Outfall Restoration
Maintenance and Stormwater Management Division
Description:
The Peppercorn Drive Outfall Restoration project was substantially completed on August
12, 2015. The project consisted of the installation of a drop inlet structure, an extension
of concrete storm sewer pipe, a concrete end wall and a step pool system to stabilize a
highly eroded outfall between 5514 and 5516 Peppercorn Drive.
Project Overview:
• Extended the existing storm pipe system and installed a concrete drop inlet storm
structure and end wall with hand rail
• Constructed a plunge pool and two cross vane step pool structures using imbricated
stone
• Stabilized channel banks by grading and using coir matting
Project Team:
• Project Manager: Jack Meritt, Maintenance and Stormwater Management Division
• Project Design & Inspection: AMEC Environment & Infrastructure, Inc
• Contractor: Utilities Unlimited, LLC
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4. Maintenance and Stormwater Management Division
Project Location: Tax Map 078-1, Braddock District
Peppercorn Drive Outfall Restoration
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Project Site

5. Maintenance and Stormwater Management Division
Construction Photo
Peppercorn Drive Outfall Restoration
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New drop inlet and new storm pipe

6. Maintenance and Stormwater Management Division
Peppercorn Drive Outfall Restoration
Construction Photo
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New end wall, plunge pool and step pool

7. Before After
Peppercorn Drive Outfall Restoration
Maintenance and Stormwater Management Division 7

8. Additional Information
For additional Information, please call
www.fairfaxcounty.gov/dpwes
Peppercorn Drive Outfall Restoration
Maintenance and Stormwater Management Division
Irene Haske, Public Information Officer
703-324-5821, TTY 711
SWPDmail@fairfaxcounty.gov
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