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Rebuilding SR 530

Status - construction

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September 2014

  • NEW: WSDOT expects to open the new SR 530 to two-way traffic at 50 mph in time for the morning commute on Monday, Sept. 22.
  • Monday, Sept. 8 through Saturday, Sept. 20: **Expect delays of up to 20 minutes. Pilot cars will direct traffic on SR 530, alternating one direction at a time, to allow paving work to continue.**
  • WSDOT awarded the SR 530 reconstruction contract to Guy F. Atkinson Construction for $20.57 million. The Federal Highway Administration emergency relief funds will cover the entire cost of the reconstruction project.

Delays on SR 530:
From Monday, Sept. 8 through Saturday, Sept. 20, traffic will operate on a one-way, piloted basis on the new SR 530. Contractor crews will finish paving and striping the new roadway. Please expect delays of up to 20 minutes. Pilot cars will direct traffic on SR 530, alternating one direction at a time, approximately every 10 minutes. There will be no set schedule. Pilot cars will operate continuously and on demand 24 hours a day to minimize delays.

Community Event:
With work to build the new State Route 530 almost complete, WSDOT and its contractors wanted to take a moment to recognize those lost in the slide by working with families and survivors to plant 43 trees in a small grove just east of Steelhead Drive. A community event will take place following the tree planting on Saturday, Sept. 27. Please see the attached flyer for details.

Why is WSDOT rebuilding SR 530?
Both directions of SR 530 in North Snohomish County from Whitman Road (milepost 36) to 310th Street Northeast (milepost 39) were blocked following a massive landslide that occurred on Saturday, March 22. Debris from the slide damaged SR 530 and blocked the north fork of the Stillaguamish River.

The end result
Due to the risk resulting from the landslide and the geographic changes to the Stillaguamish River North Fork, the roadway must be elevated. The design/build contract was awarded to Guy F. Atkinson Construction. Funding for this portion will be paid by the Federal Highway Administration.

Project timeline
Substantial completion of an elevated SR 530 through the slide area is required by early October.

Contractor crews plan to rebuild SR 530 in four major stages:

COMPLETED - Stage 1: Repair, pave and stripe the existing roadway so that it can open temporarily to two-way traffic within the first few weeks of the project. A visualization (pdf, 435kb) of the work shows what drivers can expect in stage 1 of the project.

COMPLETED - Stage 2: Rebuild the east section of the roadway next to the existing roadway. This section will stand about 5 feet above the current roadway for flood protection reasons. A visualization (pdf, 435kb) of the work shows what drivers can expect in stage 2 of the project.

Stage 3: Rebuild the roadway through the slide area and the west side of the roadway next to the existing SR 530. The section west of the slide area will stand about 15-20 feet above the existing roadway. Open all of the new roadway to traffic by early October. A visualization (pdf, 435kb) of the work shows what drivers can expect in stage 3 of the project.

Stage 4: Finish other key tasks off the roadway, including landscaping, stream restoration and demolition of the existing roadway, after the new SR 530 opens to traffic. A visualization (pdf, 435kb) of the final work for the project shows what drivers can expect during stage 4.

No restrictions currently in place on SR 530
The speed limit is 25 mph and there are no restrictions for height and size of vehicles at this time.

Local travelers may still need to use the Seattle City Light access road at times until the elevated portion of SR 530 is reopened permanently. 

Community meetings 

If you could not attend one of the meetings, please send questions and comments to

Notes from the first (xls 53.7 kb), second (xls 18.1 kb) and third (xls 17 kb) rounds of family and community meetings are now available.

Financial Information
The SR 530 reconstruction project is funded with $28.1 million of Federal Emergency Relief funding.

How can I get more information?

Travis Phelps
WSDOT Communications
Phone: (206) 440-4698

Harmony Haveman Weinberg
WSDOT Communications
Phone: (206) 440-4475

Or sign up to be on the SR 530 email list to get the latest updates.

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