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- SR 530 reopened to two-way, 50 mph traffic just after 8:30 p.m. Monday, Sept. 22, 2014.
- NEW - Read the answers to frequently asked questions about construction, winter weather and the Knoll.
- Throughout November, drivers should plan for intermittent flagging between 8 a.m. and 4 p.m. Monday through Friday as contractors work along the side of the highway.
- Check out photos of the SR 530 reconstruction process.
- 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.
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.
Substantial completion of an elevated SR 530 through the slide area was required by early October. Contractor crews working for WSDOT reopened ahead of schedule on the evening of Monday, Sept. 22, 2014.
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.
COMPLETED - 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
There are no restrictions for height and size of vehicles at this time.
If you could not attend one of the meetings, please send questions and comments to SR530Info@wsdot.wa.gov.
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.
The SR 530 reconstruction project is funded with $28.1 million of Federal Emergency Relief funding.
How can I get more information?
Phone: (206) 440-4698
Harmony Haveman Weinberg
Phone: (206) 440-4475
Or sign up to be on the SR 530 email list to get the latest updates.
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