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 main from the water treatment plant to New Dominion Parkway was constructed in 2001.

The new 54-inch pipeline will extend this 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.

The project includes the construction of approximately 12,000-feet of new 54-inch diameter water main along the east side of the Fairfax County Parkway (Route 7100) from south of Fox Mill Road (Route 665) to south of New Dominion Parkway. The new water main parallels an existing 48-inch diameter water main that was installed in the 1970’s. The new water main will be constructed in existing easements and right-of-way.

Project construction is estimated to take approximately 2-1/2 years. During construction, traffic on the Fairfax County Parkway and on all connecting roads will be maintained without the need for shutdowns of lanes. Three temporary construction entrances are planned for the project. Two of the entrances will be located on the Fairfax County Parkway south of Fox Mill Road (east and west side of the parkway) The third entrance will be located on the parkway north of Sunset Hills Road. Construction entrances will not be used during rush hour traffic. The construction entrances will utilize roadway shoulders and no lane closures are anticipated.

Noise, dust, silt and erosion during construction will be minimized and carefully controlled and managed by Fairfax Water. When the project is complete, all disturbed unpaved areas will be graded and seeded and paved areas impacted by the construction will be repaved to meet Virginia Department of Transportation (VDOT) standards.