Preparing Pipes for Winter Weather

November 07, 2008

As cold weather approaches, there are steps you may take to help prevent frozen pipes in your home. Water expands as it freezes, so water that is sitting in a pipe will place tremendous pressure on the pipe as it freezes. This pressure can cause the pipe to break.

Pipes that freeze most frequently are those that are exposed to the outside, such as outdoor hose outlets, water sprinkler lines and pool supply lines. Also at risk are pipes in unheated interior areas such as kitchen cabinets, attics, garages, basements and crawl spaces.

Before the onset of cold weather, help prevent frozen pipes by following these recommendations:
• Remove, drain, and store garden hoses.
• Close the inside valves that control the water supply to outside hose attachments, (known as bibs).
• Open the outside hose bibs to allow any water in the line to drain out. Keep this outside valve open so that any water remaining in the pipe can expand without causing the pipe to break.
• You may want to install a “pipe sleeve” for water pipes that are not insulated. Building supply stores carry these and other supplies for insulating pipes.
• If you go away for an extended time during cold weather, leave the temperature set above 55 degrees before you leave.
• In severe cold weather, let cold water drip from faucets served by exposed pipes. The cold water is still above freezing and will help prevent the pipe from freezing.

Latest News

Canal Rd slope showing areas with fallen rock

Off-Peak Lane Closures and Sidewalk Closure Begin This Week

Starting, Saturday, September 20, DC Water will begin construction to stabilize the slope on Canal Road NW between Foxhall Road (Glover-Archbold Trailhead) and the Georgetown University (GU) entrance.

Photo of completed repair with concrete encasing the sewr pipe

DC Water has successfully completed emergency repairs on a critical section of the Anacostia Force Main following a failure near Anacostia Avenue and Ponds Street Northeast in July. With repairs finalized, attention now turns to rehabilitating other vulnerable segments of the 6.25-mile pipeline to ensure long-term reliability and resilience. 

Map of construction area on Clara Barton Parkway near I495

DC Water will be doing construction as part of a sanitary sewer rehabilitation project on Clara Barton Parkway in Maryland from Sept 8 - Oct 10, 2025, which may cause delays inbound near the I-495 Beltway interchange. One lane will be closed in the work zone to reline an 800-foot section of the sewer line, known as the Potomac Inteceptor. Access to the inner and outer loops of the Beltway will remain available.

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

Canal Rd slope showing areas with fallen rock
DC Water to Begin Canal Road NW Slope Stabilization Project

Off-Peak Lane Closures and Sidewalk Closure Begin This Week

Starting, Saturday, September 20, DC Water will begin construction to stabilize the slope on Canal Road NW between Foxhall Road (Glover-Archbold Trailhead) and the Georgetown University (GU) entrance.

Latest Blog Post
A helicopter lowers a drill rig to workers on the Potomac River.
DC Water begins drilling in Potomac River to explore options to rehab underwater sewer line
When one of your major sewer lines runs through the Potomac River, a backhoe and trencher won't do. That's why we've got helicopters carrying a 14-ton drill and workers suspended midair over the Potomac.
Upcoming Meeting
Date
September 18, 2025
Thursday, 9:30 AM

Upcoming Events

Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 40% of the last 3 payments made and in the new fiscal year 50% will be credited. Eligible participants are residential customers who have had an outstanding balance for 60 days or greater and with an outstanding balance of $500 or more.