Add the 4300 block of Stevens Avenue South in Minneapolis to the continuing collateral damage from the reconstruction of the Crosstown/35W (see earlier installments here, here and here). WCCO’s Esme Murphy beat Whistleblower to this story. But only Tuesday did I receive the Feb. 2 engineering report from the city of Minneapolis about the troubles on Stevens Avenue. Those details, along with a conversation I had last month with John Griffith of the Minnesota Department of Transportation, paint a vivid picture of what happened.
Early this winter, work crews were busy laying a 36-inch water main in the cavernous trench created by the widening 35W in south Minneapolis. They were digging so deep that to keep the site dry, they had to pump out the groundwater. This “dewatering” apparently destabilized the earth all around it, including several houses on the 4300 block of Stevens.
In January, the trouble came to a head when a smaller water line that served the homes on Stevens sprung a leak and caused a small avalanche where the street used to be. Crews repaired that water line, but by then, the ground all around was moving. The city report, done by the Bonestroo engineering firm, concluded that “the area is undergoing a classic global slope stability failure.”
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