A look at Minneapolis' aging storm tunnel system

Tunnels running very deep beneath Minneapolis carry away storm and waste water. Here's a look at the aging system and how it works.

April 25, 2018 at 6:20PM
(Mark Boswell/The Minnesota Star Tribune)

Deep below the streets of downtown Minneapolis, a network of tunnels built 80 years ago to move stormwater to the river is bursting at the seams when it rains. A $38 million project near Washington Avenue would alleviate the pressure.

about the writer

about the writer

Mark Boswell

Deputy News Graphics Director

Mark Boswell is Deputy News Graphics Director at the Minnesota Star Tribune and has over 30 years experience as a visual journalist, illustrator and writer.

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