HOME > CAPITAL PROJECTS > Corbalis to fox mill Water Main
8570 Executive Park Avenue, Fairfax, VA 22031  703.698.5600   |   After Hours Emergencies 703.698.5613, TTY 711

Tysons Corner Pump Station
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Penderwood Water Storage Tank
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Fox Mill Pump Station
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Corbalis to Fox Mill Water Main

To serve the growing demand in western Fairfax County, Fairfax Water must expand the capacity of the water transmission system. The first phase of this water transmission main from the water treatment plant to New Dominion Parkway was constructed in 2001. The new 54-inch pipeline will extend this water main to the Fox Mill Pumping Station just south of Fox Mill Road. The additional transmission capacity provided by the new water main will benefit all customers in the western part of Fairfax County.

Fairfax Water has constructed approximately 11,400 feet of a new 54-inch water main along the east side of the Fairfax County Parkway from New Dominion Parkway to its Fairfax Water’s Fox Mill Pumping Station. The tunnel portion of the project was completed in May 2014. The tunnel is 8 feet in diameter and 8,400 feet long. It extends along Fairfax County Parkway from New Dominion Parkway to Fox Mill Road and was bored through solid rock at a depth of 35 feet to 55 feet using a special tunnel boring machine. The water main portion of the project is complete and in-service, with final restoration activities ongoing. Final project completion is expected during the summer of 2015.

Click on image to enlarge


Here is a video of the tunnel boring machine completing the tunnel.

Project Schedule
Original Start of Construction Fall 2009
New Contractor Start of Construction Spring 2012
Complete Construction Summer 2015

Need More Information?

Mr. Jerry Scott
Chief Construction Engineer

(703) 698-6351


Construction image

For a flyer with photographs of the project along with a brief project overview...click here.