12th Street S Sanitary Sewer Relining


12th St S between S Hayes St and S Eads St, Arlington, VA 22202  View Map

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About the Project

Arlington County is relining sanitary sewer lines, ranging in size from 20-inches to 27-inches in diameter, along 12th St S between S. Hayes Street and S. Eads Street. The project began in early February 2023 and is expected to conclude in early March, depending on weather. The project will last approximately one month.

Work hours for this project are Monday through Friday, 7 a.m. - 7 p.m. for project set-up and tear down. Work will continue around the clock during lining, with the potential for weekend work.

A video inspection in 2022 revealed that the sewer pipe had moderate-to-severe deterioration, including corrosion and reinforcing steel exposed. The purpose of this project is to extend the life of the line using a trenchless rehabilitation method, known as cured-in-place pipe (CIPP). County contractor AM-Liners East Inc. will perform the work.

CIPP Installation Process

The process used to cure the pipe requires crews to work around the clock. Pumps and boilers will run constantly during the curing phase. Each pipe segment normally takes between 24-36 hours to cure. The project consists of seven pipe segments.

What to Expect

Residents and businesses should expect inconveniences such as parking restrictions, traffic detours, street closures, dust and noise. We will make every effort to minimize the inconveniences and greatly appreciate your patience and understanding during this process.

The resin used in CIPP process contains Styrene, a chemical with an unpleasant odor similar to strong spray adhesives. To sufficiently reduce the possibility of Styrene from entering your home or business, please pour water into the drains including those in basement floors and used for air conditioner condensation. This is also good practice in the future to keep out unwanted gases from the sanitary sewer system. A Styrene odor in the home or business could indicate a plumbing issue such as a broken or clogged pipe. A plumber should investigate such issues.

For additional information and answers to frequently asked questions about the sewer relining process, please view our FAQs. For any after-hours emergency, please call our 24-hour Water Control Center at 703-228-6555.

Project Impacts