Wednesday, December 23, 2020

SR 112 closed in Clallam County

Update: Jan. 8, 2021
A fifth slide has been identified along SR 112 at milepost 36.9. The roadway remains closed between milepost 31 and 39. WSDOT GeoTechnical Engineers are currently evaluating the roadway and will recommend repairs and reopening plans.

Update: Dec. 28, 2020
Beginning the week of Jan. 4, our geotechnical experts will survey and assess multiple slide zones along SR 112 near milepost 31.8 through 32.2 at Jim Creek. The highway remains closed until further notice until a plan for repairs is recommended and approved. An estimated timeline for reopening has not been made available at this time. Travelers are currently detouring using SR 113 and US 101.
Real time travel information
By Doug Adamson

When winter weather strikes in Washington, sometimes we see snow, and sometimes we see rain.

Both struck at the same time this week on State Route 112 in Clallam County on the Olympic Peninsula, including especially intense driving rain.

The damage left behind closed a portion of the highway until further notice.

What we know so far
A section of SR 112 east of Pysht closed due to sloughing and roadway settlement Monday. The damage occurred in three places around milepost 31.8.
A large winter storm including heavy rain and snow forced this section of US 112 in Clallam County to drop.
The stop sign gives an idea of the scale of the situation.

WSDOT crews inspect sunken section of SR 112

Our engineering geologists examined the three locations and found the hillside is still moving in at least one place around the highway. In one section, the roadway drops 22 inches where a 100-foot-long settlement stretches across the highway. We've yet to see the settlement stop, and geologists observed a crack in the hillside over the roadway. In another, a large stretch of the hillside below the road sloughed away. In the third, the hillside sloughed off below the roadway.
A hill behind SR 112 in Clallam County washed out during a recent winter
storm that included heavy rainfall.

What we're doing
As of Tuesday afternoon, crews could still hear material moving in the forest above the roadway. Our engineering geologists saw continued movement on the roadway and the slide areas. They'll return next week to survey the area again. Once they give us the all-clear, our crews can safely clear and repair the roadway.

Travelers will continue to take the detour around via US 101 until we're able to make the fixes and safely clear the roadway for the people who rely on it.
SR 112 detour map

We understand the importance of this highway for everyone who uses it. However, Mother Nature is setting the tempo at this time. We'll continue to monitor the situation and set a game plan for repairs.