south van dorn sanitary sewer emergency replacement and stream restoration january 2016
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A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream RestorationContract No. CN15402011Project No. WW-000024-002
Mason District
December 15, 2015
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream RestorationPost Construction
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Project DetailsS. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Project Overview:• Installation of 1000 feet of emergency bypass pumping• Replacement of approximately 120-feet of 20-inch DIP sewer pipe• Installation of large boulder riffle core and placement of surrounding class III riprap• Stream bank restoration
Project Team:• Utilities Design and Construction Division – Brendan Schillo, Jennifer Arias• Wastewater Collection Division – Bobby White, Jonathan Okafor• Stormwater Planning – Justin Pistore
Description:The S. Van Dorn Sanitary Sewer Emergency Replacement and Stream RestorationProject consisted of the emergency replacement of a ruptured sanitary sewer that crosses Backlick Run. To protect the new pipe crossing, an environmentally friendly approach was implemented using large boulder riffle core surrounded by class III riprap. Additional riprap was used to restore the eroding stream banks of this section of Backlick Run. This project was substantially completed on November 6, 2015.
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Mason District – Tax Map No. 81-1 and 81-2
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Emergency Sewer Bypass Pumping System
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Installation of Stream Bypass Culvert
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Removal of Broken Sanitary Sewer Pipe
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Installation of Boulder Riffle Core Pipe Protection
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Sewer Pipe Installation and Concrete Encasement
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Protection of Stream Bank with Class III Rip Rap
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Finished Product with Stream Flow
Before After
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Additional Information
For additional Information, please call
www.fairfaxcounty.gov/dpwes
S. Van Dorn Sanitary Sewer Emergency Replacement and Stream Restoration
Capital Facilities/Utilities Design and Construction Division/Wastewater Design and Construction Branch
Irene Haske Public Information Officer
703-324-5821, TTY 711SWPDmail@fairfaxcounty.gov
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