Public Works

Surface Water and Sewers
1911 E. 26th St.
Minneapolis, MN 55407
(612) 673-2405

Maintenance and Operations

Stormwater Drainage System

The City of Minneapolis owns and maintains many types of stormwater facilities, including:

An inventory and condition assessment study has recently been completed for Minneapolis storm tunnels. A rehabilitation program is being developed based on this study to make needed repairs and improvements.

Proper maintenance and operation of the stormwater drainage system helps minimize pollutants entering City surface waters. Since streets act as collection channels during a rainstorm, they must be considered part of the stormwater drainage system. Maintenance of the storm drainage system includes:

In 2010, Minneapolis Sewer Operations personnel:

Sanitary Sewer System

Protection of surface waters also requires proper maintenance and operation of the sanitary sewer system. Minneapolis streets contain over 830 miles of sanitary sewers; the earliest known sewers were built around 1870. Many of these brick sewers are still in operation; however some of these older concrete sewers are now in need of repair or replacement.

The City has an ongoing rehabilitation program helps to extend the life of these sewers by installing fiberglass lining in them. This also prevents groundwater contamination from leaky pipes.

Sanitary sewer pipes occasionally get plugged up, which can cause backups into basements. Regular cleaning and redirection of stormwater runoff to storm drains helps prevent this. In addition to the sewers, 31 miles of deep tunnels (also called interceptors) convey sanitary sewage to the Metropolitan Wastewater Treatment Plant (formerly known as Pigs Eye Sewage Treatment Plant). Most of these tunnels are inspected and maintained by Metropolitan Council Environmental Services (MCES).

Roadways

Garbage, sediment, and other contaminants are deposited on roadways from a number of factors including:

Public and private snow and ice control operations contribute to this problem. To manage snow and ice control, City crews apply thousands of tons of sand and salt to roadways every winter. Sand harms lakes and streams by disturbing their ecosystem, depositing pollutants that bind to sand particles in lake bottoms and streambeds. Salt is harmful to both groundwater and surface water.

These materials will wash into our lakes, rivers and streams without proper control measures:

Last updated Jan 30, 2013