The DPW Water Division crew replaces a water main. The DPW Water Division crew replaces a water main.

Mains Replacement Projects

The DPW Water Division is completing a number of water main replacement projects throughout its system. These projects replace old and undersized mains. New bigger mains will provide better flows, less breaks and increased water quality.

For more information about the Water Mains Replacement Projects, call the Public Works Call Center at (302) 576-3878 or visit

Water Quality During Projects

The water in the bypass pipes is safe to drink. It is tested and meets the same the same high water quality standards as the water from underground pipes. The City does not anticipate significant discoloration of water during this project; however, crews may need to turn water valves, which may cause temporary discoloration of water. Discoloration of water is usually linked to naturally-occurring sediment and corrosion products in the water main. It does not pose a health risk, and it normally goes away after flushing. Please remember to run each faucet for a few minutes before drinking or using, and run your clothes washer empty on its shortest cycle before putting in clothes to avoid discoloration. The temperature of your water will also be affected by outside temperatures, and in high summer heat, the water temperature may be quite high.


Lamotte Street UPDATE

Location: Lamotte Street between 22nd and 23rd Streets
Status: Installation complete, restoration pending

Gordon Street UPDATE

Location: Gordon Street between Lamotte and Market Streets
Status: Under Construction

Heald Street UPDATE

Location: Heald Street between 11th and 13th Streets
Status: Under Construction

Cade Street UPDATE

Location: Cade Street
Status: Under Construction

West 23rd Street UPDATE

Location: West 23rd Street between West and Market Streets
Status: Under Construction

Tatnall Street UPDATE

Location: Tatnall Street between 22nd and 26th Streets
Status: Under Construction

Contact Public Works

Mailing Address

Department of Public Works
Louis L. Redding City/County Building
800 N. French Street, 6th Floor
Wilmington DE 19801

Phone: (302) 576-3060

Public Works Call Center

Phone: (302) 576-3878

Operators are on duty 6:00 a.m. - 4:30 p.m. Monday through Friday.


Report non-emergency requests for service online 24 hours a day, 7 days a week

Water Emergencies

Phone: (302) 571-4150

Report water-related emergencies after hours (4:30 p.m. - 6:00 a.m. Monday through Friday; 24 hours a day Saturday and Sunday).