Lake Washington Boulevard almost slides again

June 3, 2010

By Staff

Vehicle traffic drives in the 7200 block of Lake Washington Boulevard Southeast May 27, at the repaired site of a burst pipe that threatened to create a sinkhole. By Greg Farrar

In early May, city maintenance workers discovered that a pipe running under Lake Washington Boulevard just north of Southeast 74th Street had collapsed, causing water to seep into the surrounding soil and erode the underside of the road.

Had the workers not discovered the burst pipe, the road would have soon collapsed, Interim City Manager Rob Wyman said.

Wyman said it is difficult to determine for how long the pipe had been collapsed. Maintenance workers quickly replaced the collapsed pipe with a plastic pipe that will serve as a temporary replacement.

Interim City Manager Rob Wyman said the road now needs engineering analysis to ensure a proper permanent fix.

The recent near-collapse comes just feet away from where the entire road collapsed in a mudslide about 15 years ago.

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