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350 South 5th Street
RM 203 City Hall
Minneapolis, MN  55415-1390

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Water Main Cleaning and Lining

Of the 1060 miles of water main pipes in Minneapolis, 760 miles are constructed of unlined cast iron. Cast iron was the standard until the 1970’s and it was manufactured unlined. All pipes installed since the 1970’s are made of ductile iron that comes from the factory with a cement lining on the inside. With time, unlined cast iron mains build up mineral deposits that restrict the flow and can result in discolored water. Rusty water meets all regulatory requirements but is aesthetically displeasing.

This water main cleaning and lining project is to scrape the rust out of the pipes and install a potable water grade lining that keeps that will prevent new rust from forming. This will extend the life of the pipes as well as improve the water appearance and flow of water through the pipes. 

Because the water main must be empty for the work, each building that taps into the water mains that are being worked on will be supplied with a temporary water line. The water in the temporary pipes will be sampled throughout the project to make sure that the water meets drinking water standards.

This work will not be assessed to the property.

2019 Water Main Cleaning and Lining

 2019 project locations will  be available soon.

2018 Water Main Cleaning and Lining

Construction Dates:

  1. Waite Park              May 2018
  2. 8th Street South     June 2018
  3. Fulton South           April 2018
  4. Hoyer Heights         May 2018
  5. 6th Street South     August
  6. Hollywood Ave NE  August 2018
  7. Randolph St NE     August 2018

Duration of Construction: 1 construction season with completion expected before October

Traffic Impact: Minimal

Project Limits

Cleaning and Mortar Lining

1 - Waite Park

34th Ave NE from Ulysses St NE to Garfield St NE
36th Ave NE from Johnson St NE to Cleveland St NE
Hayes St NE from 34th Ave NE to 36th Ave NE
Wilshire Place from 34th Ave NE to 36th Ave NE

2 - 8th Street South

From Hennepin Avenue to Chicago Avenue

3 - Fulton South

W 46th Street to W 54th Street

York Ave S to France Ave S

4 - Hoyer Heights

36 ½ Ave NE from 37th Ave NE to Buchanan St NE
Taylor St NE from 36 ½ to 37th Ave NE
Pierce St NE from 36 ½ to 37th Ave NE
Pierce Pl from 36 ½ to 37th Ave NE
Buchanan St NE from 36 ½ to 37th Ave NE

Cleaning and Structural Lining


5 – 6th Street South

From 20th Ave S to 21st Ave S

6 – Hollywood Ave NE

From  Johnson St NE to Cleveland St NE

7 – Randolph St NE

From 26th Ave NE to 31st Ave NE


Project Documents

Water Main Cleaning and Lining Overview Map

6th Street South Map

8th Street South Map

Fulton South Area Map

Hollywood Avenue Northeast Map

Hoyer Heights Area Map

Randolph Street Northeast Map

Waite Park Area Map

Project Contacts

Nate Wold, General Foreman; 612-673-5600 or [email protected]

Robert Ervin, Project Engineer; 612-661-4830 or [email protected]   



Last updated Apr 24, 2019



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