Updated: 5:05 p.m. Friday, Jan. 9, 2015

Several highways remain closed near the Washington coast after heavy rains brought debris down over the roadway beginning in the early morning hours of Monday, Jan. 5. We will continue to update this post when information changes.

These closures are in effect:

• US 101 at milepost 72.6 near Artic will remain a single lane with reduced speeds and one-way alternating traffic at Rock Crusher Hill until further notice. Stop signs provide traffic control. Motorists are asked to please adhere to the stop signs in place and follow the rules of one-way alternating traffic. Heavy rains early Monday morning triggered movement at a historic landslide site. WSDOT has completed the design for a permanent repair, and has requested construction funding for the repair in the 2015-2017 biennium.
• At US 101 near milepost 79 near Cosi Hill, the left northbound lane is closed; one lane in each direction is open and the lanes have been shifted to the southbound lanes and shoulder.
• US 101 at milepost 75 has single lane alternating traffic controlled by flaggers. 

Pacific County
WSDOT will opened a temporary bypass around a damaged portion of State Route 4 at milepost 3.1, just west of Naselle, Friday, Jan. 9.The road will be open to two-way traffic with a reduced speed of 15 mph. The highway was damaged when a culvert failed during heavy rain, Monday, Jan. 5.



Permanent repairs to the highway and the culvert will take several months. Crews are hauling material in to construct a connection from SR 4  to a bypass road, which is an old highway that runs parallel to the damaged road. Paving work will need to be completed before it is open to two-way traffic with a reduced speed limit of 15 mph. The work is weather dependent.

SR 4 wash out between US 101 and SR 401. More photos available on Flickr.

CLEARED - Both lanes of I-90 Snoqualmie Pass have reopened. Snoqualmie Pass received more than 8 inches of rain in the past 24 hours saturating the soil causing rock fall along the slopes east of I-90.

CLEARED - US 12 at milepost 1 is open to traffic in all directions outside of Aberdeen.

CLEARED - SR 109 in both directions.

Cleared: All lanes of US 101 (milepost 29 to 53.5) in South Bend are open.

CLEARED - US 101 at milepost 64 is now open after more than a foot of water prevented travel on the roadway early Monday.
CLEARED - US 101 at milepost 89 is now open after three slides blocked the roadway early Monday. Both lanes are now open.

CLEARED - SR 105 all lanes are now open. Earlier a slide had blocked both directions from Smith Creek Bridge (milepost 10) and Airport Road (milepost 4.5).

CLEARED - SR 203 is closed in both directions from Tolt Hill Road in Carnation to SR 202 in Fall City due to water over the roadway.

CLEARED - SR 202 is closed from SR 203 to Southeast Fish Hatchery Road northeast of Fall City due to water over the roadway.

CLEARED - SR 11/Chuckanut Dr. is closed between Avon Allen Rd and Field Rd due to water over the roadway.

CLEARED - SR 538 is closed in both directions in Mount Vernon between Horton Road (milepost 5) and SR 9 (milepost 3).

By Barbara LaBoe

You can’t fight Mother Nature. But when it comes to landslides that block rail lines north of Seattle, we’re trying to call a truce.

This 1997 Department of Ecology picture of a landslide near Woodway, WA shows how devastating slides can be to property and rail lines.

Landslides aren’t new. Gravity, Pacific Northwest rain and steep slopes along the rail lines combine to cause the land to give way. Erosion, cutting into the bottom of the slope and poor drainage systems also exacerbate the problem. More than 200 slides have occurred along the Seattle to Everett coastline in the past decade, the most recent on Dec. 28.

BNSF Railway Company owns and operates the railway. For each landslide on the north rail line, BNSF sets a minimum 48-hour moratorium on passenger rail service between Seattle and Everett. During that time, BNSF clears debris, repairs the tracks and checks the slope. While moratoriums are in effect, buses transport our Amtrak Cascades passengers between the Seattle and Everett stations to continue their train journeys.

We manage the Amtrak Cascades passenger rail service along with the Oregon Department of Transportation.  Amtrak operates the service for the two states. So we take train safety and landslide disruptions seriously.

Retaining walls, like this one, help catch and contain landslide debris before it can reach the tracks.

That’s why we’re taking steps to help prevent passenger train delays caused by landslides, including forming the Landslide Mitigation Work Group in 2013. We wanted to become proactive and asked others, including BNSF, Amtrak and Sound Transit, to join our efforts. Today, representatives from 17 agencies and private companies attend the ongoing meetings. The group researched landslide causes, identified high risk areas and wrote the Landslide Mitigation Action Plan (pdf 2.68 mb) released earlier this year.

We also, along with other work group members, held three educational open houses in communities along the north rail line to allow landowners to learn about landslide risks and prevention on their property. We met with mayors and city councils this year in Mukilteo, Edmonds and Everett about the issue. And a brochure with information and prevention tips (pdf 340 kb) was mailed to landowners along the affected rail corridor. In some cases, preventive measures are simple, such as planting native vegetation to prevent erosion and reduce the risk of landslides. New or reworked drainage systems also can help stabilize the slope and safeguard property -- as well as the rail lines. As part of this process, BNSF also agreed to waive permit fees through April 2015 for landowners who connect to the railroad’s drainage system.

Using federal funding, we also identified six stabilization projects (pdf 146 kb) in historically slide-prone areas along the north rail line. Improvements include:

• Retaining walls to catch landslide debris before it hits the tracks.
• Slide detection fences to give early warnings of active landslides.
• Improved drainage systems.
• Erosion control.

Stabilizing land and reducing the steepness of a slope, as shown here near Mukilteo, can also help prevent landslides.

Of course, there’s never a 100 percent guarantee when you’re dealing with landslides. But by addressing landslide risks and prevention head-on, we hope to reduce at least some of Mother Nature’s impact.

After the tragic landslide along SR 530 in the town of Oso on Saturday morning, search and rescue operations are underway for many unaccounted people in Snohomish County. SR 530 between Whitman Road (milepost 36) and 310th Street Northeast (milepost 39) is closed indefinitely. It’s likely a long-term closure.

A hillside gave way about five miles east of Oso, and north of SR 530 across the north fork of the Stillaguamish River. The affected area is about a mile wide and estimated to be up to 35 feet deep in places. The headscarp, the location on the hill where the slide began, is about 1,500 feet wide and 600 feet tall.

We are working closely with Snohomish County, Washington State Patrol and a number of other state and local partners in the emergency response.

Right now, it’s not safe for crews to go into the slide area. Silt is still moving from hillside, which is potentially hazardous to crews below. We’re helping clear some mud from the road to blaze a trail for rescue workers, but it’s too soon to tell how much damage has been done to the highway.

At the moment, geologists from several agencies including WSDOT are on-scene and monitoring the hillside for the safety personnel watching for further safety issues.

There are no good detour options around the portion of SR 530 affected by the mudslide. Those heading to and from Darrington need to use SR 530 to SR 20, and then take I-5. The detour is about an hour.

We also teaming up with Snohomish County to clear snow from Mountain Loop Highway. It’s a seasonal auxiliary road owned by the county and Forest Service that usually is closed in the winter. Once opened, the 25 mph gravel road will serve as an emergency route to and from Darrington. Crews working on the clearing effort reached the summit of Mountain Loop Highway around 11:30 a.m. today. Previous reopening estimates indicated the highway would open Thursday. There is potential that the work will be completed earlier than planned.

Currently, we are reaching out to potential contractors so we can start cleanup efforts as soon as possible. Governor Inslee declared a state of emergency late Saturday night so that we can apply for federal relief funds to cover the cleanup costs for reopening SR 530.The current slide is unrelated to previous work on the south side of the highway at Skaglund Hill. Between 2006 and 2012, our contractor crews installed a rock buttress along the south bank of the Stillaguamish River just below SR 530. This reinforced and stabilized the hillside. We also installed a series of drainage pipes into the hillside and a rock wall that cost $13.3 million.

Sections of the old SR 410 among the landslide ruins.

By guest blogger Summer Derrey

"Cooorrrriiiiee!" The employees at Eagle Rock Grocery west of Naches, echo his name like a familiar character from the sitcom Cheers. Corie is easy to spot in his orange safety vest and boots.

Most everyone in the Nile Valley recognize Corie Henke, WSDOT field engineer. He’s the guy who stood side-by -side with the residents of the Nile Valley when the mountain collapsed in Oct. 2009, crushing the highway, uplifting the river bed and flooding their properties. Corie was the lead field engineer organizing the chaos in the midst of disaster.

Property owners were told to quickly remove all their belongings, and say one last goodbye to their previously peaceful and beautiful Nile River Valley homes before the river busted through the temporary dam. Corie was the compassionate WSDOT employee begging for just a few more hours or maybe one more day so all the property owners could get there before it was too late.

Governor Gregoire declared a state of emergency, and told the Nile Valley residents they would get a temporary route in 30 days, by Thanksgiving.

Our crews gulped.

“I was just the conductor in a very large and expensive orchestra.” Corie said he did not do all of the work.

Our contracted crews built the temporary route by the deadline. They were nervous, but they did it.

Natural disasters speed up funding and permitting processes; that’s why the temporary route went up so quickly more than two years ago. Since the area is now stable, crews have to follow the rule-book for the permanent fix. Federal partners provided funding, and the legislature stepped up with the necessary match. Construction to build the permanent route along the toe of the landslide is starting in June with some preliminary work in March.

The $9.3 million project removes traffic from Nile Loop Road and reroutes it closer to the original SR 410 highway along the toe of the landslide. Crews will also stabilize the slope on the west end of the slide, and add guardrail to the new route. The intersection by the Woodshed Restaurant is also getting a few upgrades.

In anticipation of construction, Corie went out to the Nile Valley to make some field observations. On that morning, the fog held tightly, cuddled in the crevices of the landslide as if it were a permanent part of the valley. Two years after the disaster, slabs of yellow skip-striped asphalt still peek out of the rubble like an orphaned highway.

Corie’s boss asked him to take off the hard hat and put on a tie for the project’s upcoming open house. He has a saying about putting on a tie; “it’s not this field engineer’s style.” Residents probably won’t recognize Corie with a tie on, but they will recognize his bright orange safety vest and ear-to-ear grin.

Come say “hi” to Corie at the open house on March 27, 2012, from 6 p.m. to 7:30 p.m. at the Nile Valley Community Church at 60 Bedrock Lane in Naches.

Landslide on SR 401