Beavers cause sinkhole at state park
July 6, 2010
Small sinkholes opened at Lake Sammamish State Park last week, after beavers burrowed beneath a park road.
Rangers cordoned off the area, and placed plywood sheets atop the holes to prevent parkgoers from crashing through.
Beavers built dams on a nearby creek, raising the prospect of flooding upstream during heavy rainfall. The state could hire a trapper to remove the animals if the problem persists.
Sammamish faced a similar problem last month. The city hired a trapper to remove beavers from Laughing Jacobs Creek after the animals constructed a dam on the waterway. The blockage caused the water level in Beaver Lake to rise — and submerged some docks — during rainy weather last month.