Project Summary
Phase:
- Lateral Rehabilitation - Construction
- Manhole and Sewer Main Rehabilitation - Completed 2024-2025
Status:
- Lateral Rehabilitation: Active
- Manhole and Sewer Main Rehabilitation: Closed
Location: Del Ray East
Project Description
The City of Alexandria has established an ongoing citywide initiative called the Sanitary Sewer Asset Renewal Program to assess, renew, and improve the performance of the existing sanitary sewer system. Regular inspection and upkeep of this infrastructure is vital for the overall health and proper operation of sewer system infrastructure. It also helps reduce sewer system infiltration and inflow, which is when excess groundwater (infiltration) and stormwater (inflow) enter the sanitary sewer system through structural weaknesses, like cracks and joint failures, and faulty manhole frames. Addressing infiltration and inflow helps reduce the frequency and magnitude of sanitary sewer overflows, and back-ups into homes and businesses.
This project is the first of three phases that will rehabilitate sanitary sewer infrastructure serving portions of Rosemont, Del Ray, North Potomac Yard, Arlandria, and North Ridge. Phase 1 inspections, which focused on sanitary sewer pipes, manholes, and City-owned laterals in the Four Mile Run and Commonwealth Sanitary Sewersheds east of Commonwealth Avenue, were completed in December 2021.
Inspection Summary
- 644 pipes inspected (21 miles of sanitary sewer)
- 580 manholes inspected
- 2,611 laterals inspected
Inspection Results
- 150 pipes require rehabilitation (23 percent)
- 111 manholes require rehabilitation (19 percent)
- 491 laterals require rehabilitation (19 percent)
Funding
Project Budget:
- Manhole and Sewer Main Rehabilitation (complete): $5,270,000
- Lateral Renewal: $4,080,000
CIP Section: Sanitary Sewer
Learn more about the City of Alexandria's Fiscal Year Budget.
Learn more about the Sanitary Sewer Asset Renewal Program.
Schedule
Manhole and Sewer Main Rehabilitation
- Planning: April 2021 - August 2021
- Design: August 2021 - June 2023
- Construction: October 2023 - 2025
Lateral Rehabilitation
- Planning: January 2023 - November 2023
- Design: October 2023 - December 2024
- Construction: October 2026 - September 2027
Design
Design Update
Lateral Rehabilitation
The design was completed in December 2024 for installation of Top-Hat liners at 62 lateral-mainline connections and installation of T-Liners in 311 laterals from the lateral-mainline connection to the curb line.
View the Design plans and Posters from the open house at the link below:
Manhole and Sewer Main Rehabilitation
The design was completed in June 2023 for rehabilitation of approximately 34,000 linear feet of sewer mains and 112 manholes.
Construction
Construction Update
Manhole and Sewer Main Rehabilitation
Construction was completed in 2025.
Lateral Rehabilitation
Construction mobilization is anticipated to begin October 2026, and construction is anticipated to be completed within one year.
COMMUNITY MEETING
Pipe and Manhole Rehabilitation
The City held a public meeting at Alexandria City Hall on October 6, 2025 from 7-9 p.m. to discuss the scope of work, schedule, and what to expect during construction.
Lateral Rehabilitation
The City will hold a public meeting at Mount Vernon Community School on September 29, 2026 from 6 to 8 p.m. to discuss the scope of work, schedule, and what to expect during construction.
NOTIFICATION LETTERS
The City of Alexandria and the project contractor(s) will send out two letters on a rolling basis to impacted residents and business owners.
Each letter will be distributed in English and Spanish.
Timing:
- First notification: 14 days prior to construction
- Second notification: 48 hours prior to construction
CONSTRUCTION HOURS
General Construction Activity:
- Monday-Friday: 7 a.m.-6 p.m.
- Saturday: 9 a.m.-6 p.m.
Restricted Roadways:
Construction activity on select City arteries, including Commonwealth Ave., Mt. Vernon Ave., E. Glebe Rd., and E. Monroe St., is limited to:
- Monday-Friday, 9 a.m.-3:30 p.m.
- Saturday: 9 a.m.-6 p.m.
CONSTRUCTION IMPACTS
Parking
- No Parking signs to be posted 72 hours in advance
- Please remove anything in the roadway during the work window during the time indicated on the No Parking signs
Water Use
- Sewers must be dry for proper UV curing
- Length of suspension varies based on pipe size and length, but typically around six hours
Odors
- Pour small amount of water in any drain taps that might be dry (basement floor drain, for example) to eliminate potential for odors during lining