“The goal of Tysons Wastewater Conveyance Systems Modifications project is to increase the size of the sewer system to accommodate the planned growth in the northern Fairfax County."

Community Meetings

On Dec 9 the county emailed about upcoming community meetings to discuss the project that will be directly impacting TCA.

Please join the Department of Public Works and Environmental (DPWES) during a series of informational community meetings in the Hunter Mill District to provide updates on the Tysons Wastewater Project, a suite of essential wastewater infrastructure projects to increase the sanitary sewer system to support the County’s growing population.

There will be three neighborhood meetings, each one for a different portion of the new sanitary sewer line:

Waverly/Eastern: Monday, Dec. 16 | 6 p.m. – 8 p.m. | Westbriar Elem. School

Eudora/Central: Thursday, Dec. 19 | 6 p.m. – 8 p.m. | Wolftrap Elem. School

Tanglewood/Southwestern: Thursday, Jan. 9 | 6 p.m. – 8 p.m. | Madison High School

DPWES staff will be in attendance to talk more about the project and answer your questions.

For more information, please visit Tysons Wastewater Conveyance Systems Modifications Project | Public Works and Environmental Services (fairfaxcounty.gov)

Media

The project has been featured in FFX Now articles:

• Nov 18 2024 Ground breaking for wastewater pump station.
• Oct 15 2024 County plan to take McLean house for wastewater station surprises residents (pertains to Tyson’s East - “not listed on the DPWES website or in the county’s capital improvement program” - not West)
• Oct 31 2023 Planning commission approval of a wastewater pump station.
• May 9 2022 Initial project background.

Background Information

The project’s Preliminary Engineering Report, from March 2021, and revised in February 2022, was made available as an update on Fairfax County’s web site in August 2022.

While the project estimates “that construction impacts will last for only a few days in one location along the pipeline” the currently favored plan has work proceeding through much of TCA. Members can expect disruptions for an extended period.

Section 5.2.6 Route Alternative 6 of the Preliminary Engineering Report describes the planned path: The force main will continue 4,000 lf down Abbotsford Drive until veering right onto Rhapsody Drive. The force main will continue 400 lf down Rhapsody Drive before turning right onto a walking trail. It then will travel 900 lf on the walking trail through the park toward Riviera Drive. The force main then will travel south for 1,800 lf down Rivera Drive. It then will turn left onto Route 672 for 350 lf and then turn right, heading south down Flint Hill Road.

An excerpt from Figure 5-32 below, shows the project path on aerial imagery.

The map below shows the selected project path through TCA in more detail.

The project’s initial design for force main alignment through Tanglewood Park that preceded test borings in October 2023.

See Fairfax County’s Tysons West Wastewater System Enhancements page for background, location details, and timeline information. The slides and a recording from the May 10 meeting are currently available.