Project Summary
Phase: Construction
Status: Active
Locations: Arlandria-Chirilagua, Braddock Road Metro Station, Fairlington/Bradlee, King Street Metro/Eisenhower Avenue, North Potomac Yard, North Ridge/Rosemont, Potomac West, Potomac Yard/Potomac Greens, Seminary Hill/Strawberry Run, and Taylor Run/Duke Street
Managing Dept.: Project Implementation
Sponsor Dept.: Transportation & Environmental Services
Project Description
The City of Alexandria is installing 870 stainless steel manhole inserts in the Four Mile Run, Commonwealth, and Taylor Run sewersheds. These inserts will help prevent stormwater runoff from entering sanitary sewer manholes during wet weather.
Manhole inserts are pan-shaped devices that sit at the top of the manhole, directly underneath the manhole cover. The inserts have a hole that slowly drains accumulated stormwater into the sewer after the storm ends. Manhole inserts are one of the most cost-effective ways to reduce inflow into the sanitary sewer system. Inflow into sanitary sewers can overwhelm the capacity of the sewer system, which can lead to sewer backups in basements.
Funding
Project Budget: $910,000
CIP Section: Sanitary Sewers
Learn more about the City of Alexandria's Fiscal Year Budget.
Schedule
- Planning: June 2021 - December 2021
- Design: January 2022 - January 2023
- Construction: January 2023 - January 2025
Construction
Construction Update
A total of 870 out of 908 manhole inserts have been installed to date. It is anticipated that the installation of manhole inserts will be completed by July 2024 .
Construction Overview
Installation began during the month of February 2024. Each insert takes approximately 20 minutes to install. During installation, the contractor may designate areas where vehicles cannot be parked. Signs will be posted following City guidelines. Contractors will post no parking signs at least 72 hours in advance.