Westbound M Street Lane Closure Begins August 20

August 20, 2012

(Washington, DC) – DC Water will resume construction on M Street, NW as part of the Large Valve Replacements Project.

Beginning Monday, August 20, 2012 through Saturday, September 15, 2012, weather permitting, crews will be working in one westbound lane on M Street, NW near Key Bridge.

Crews will complete large valve replacement work, Monday through Friday, between the hours of 9:00 p.m. and 5:00 a.m.

Impacts:
* There will be closure of one westbound lane on M Street
during work hours.
* Excavation operations at the outset of the work will
require driving of piles into the ground, resulting in
extreme noise during abbreviated periods.
* Some traffic stops and delays within the vicinity of the
project area are anticipated.

Temporary traffic signs will be set up throughout the area to alert motorists to the upcoming lane closures.

###
About DC Water
The District of Columbia Water and Sewer Authority (DC Water), is an industry leading multi-jurisdictional regional utility that provides drinking water, wastewater collection and treatment to 600,000 residential, commercial and governmental customers in the District of Columbia, 17.8 million annual visitors and also collects and treats wastewater for 1.6 million customers in Montgomery and Prince Georges counties in Maryland and Fairfax and Loudoun counties in Virginia.

DC Water’s service area covers approximately 725 square miles and the company operates the world’s largest advanced wastewater treatment plant with a capacity of 384 million gallons per day and a peak capacity of 780 million gallons per day.

Latest News

Section of Potomac River in Cabin John, MD showing river and trees

Testing will continue through September 10 at six Maryland locations closest to January sewer collapse

DC Water is moving from daily Potomac River water quality testing to testing twice a week. The change is part of our continued response to the January Potomac Interceptor sewer collapse. Daily testing continued past the original July 31 end date and today will be the last day DC Water will test at the 10 current locations.

Map: Temporary southbound lane closure on Rock Creek and Potomac Parkway NW.

Starting on or about Aug. 7, 2026, weather permitting, drivers can expect a temporary lane closure southbound on Rock Creek and Potomac Parkway NW near the intersection of Virginia Avenue NW and F ...

Photo of inside Potomac Interceptor at Dulles showing newly lined tunnel

First of four emergency repairs on Potomac Interceptor finished

DC Water has finished the first of four emergency repair projects on the Potomac Interceptor sewer line. Crews completed work today to strengthen a 600-foot section of pipe at Dulles International Airport.

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Latest Blog Post
Plastic bottles, cups and other floating debris on the surface of the Anacostia River before the Anacostia River Tunnel began operating.
Cleaner Waterways Start With Everyday Choices
Protecting our waterways starts with everyday actions and continues through critical infrastructure designed to keep pollution out of our rivers.
Upcoming Meeting

Upcoming Events

Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 50% of the last 3 payments made. 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.