DNR seeks landslide information from you; We need to know about the small ones, too

landslide map
Updated map showing recorded landslides from the December 11-12 storm. Updated: December 13; 2:30 p.m. Map: Isabelle Sarikhan/DNR.

A classic Pineapple Express — a wet weather system originating in the Hawaiian tropics (not the 2008 comedy starring Seth Rogen and James Franco) — hit the western counties of Washington last week. The result? Flooding and landslides. And, maybe, more to come. Even after rains let up, sodden hillsides can break free in the form of landslides or rockslides.

So far, 30* landslides have been reported and recorded, of these:

  • 17 blocked or damaged city or county roads
  • 7 blocked or damaged highways
  • 3 blocked or damaged Railroads
  • 2 damaged or destroyed residential houses
  • 2 impacted powerlines

 (* A landslide can affect more than one category…  Only one impact per landslide is represented on the map.)

Help out a geologist: report any landslides you see to DNR. The big ones that close roads get lots of notice, but the smaller slides should not be overlooked. DNR geologists want to know about these landslides for a statewide landslide database we’re building to help private citizens, and local governments in future land use decisions about housing, roads, powerlines and other infrastructure.

Get the latest about road closures in the Puget Sound Region from the Washington State Department of Transportation or  follow the department on Twitter.

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