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SR 92 - 99th Ave NE and 113th Ave NE - Roundabouts

 We will build a roundabout on SR 92 at 99th Avenue NE in Lake Stevens
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A truck travels over the truck apron on the SR 92 roundabout.
A semi-truck travels around one of the new roundabouts on SR 92. View more photos of the roundabouts.


November 2014

  • The project was operationally complete Nov. 14, 2013. Operationally complete means the roadway is open and the majority of the work is finished. 
  • Check the construction update report for information about highway closures in Snohomish County.
  • Sign up for email updates about projects and issues in Snohomish County.
  • The contractor also built a roundabout near I-90 and West Lake Sammamish Parkway.

We are designing roundabouts to improve safety and traffic flow at the SR 92 intersections with 99th Avenue N.E. and 113th Avenue N.E. in Lake Stevens.

One lane of SR 92 from SR 9 to Grade Road will be closed nightly from 7 p.m. to 5 a.m. for lighting and crosswalk work. Drivers will be flagged through the work zone. During the work, 99th Avenue Northeast and 113th Avenue Northeast will be closed nightly at the SR 92 roundabouts from 7 p.m. to 5:30 a.m.

Why is WSDOT building roundabouts at the SR 92 intersections with 99th Avenue N.E. and 113th Avenue N.E.?
We will build two single-lane roundabouts on SR 92 - one at the intersection of SR 92 and 99th Avenue N.E. and one at the SR 92 and 113th Avenue N.E. in Lake Stevens. The roundabouts will improve traffic flow and help reduce the risk of serious collisions.

About 21,000 vehicles use SR 92 near 99th Avenue N.E. each day, and 16,500 vehicles each day travel near the 113th Avenue N.E. intersection.

The SR 92/99th Avenue N.E. intersection was the site of 17 collisions from 2006 to 2010, including five injury collisions. There were two rear-end collisions and 12 collisions involving drivers entering SR 92 from 99th Avenue N.E.

The SR 92/113th Avenue N.E. intersection was the site of 25 collisions from 2006 to 2010, including two injury and one serious injury collisions. There were 12 rear-end collisions and nine collisions involving drivers entering SR 92 from 113th Avenue N.E.

The End Result
Drivers will benefit from a smoother flow of traffic and a reduced risk of serious collisions on SR 92 through Lake Stevens. Roundabouts are designed to make intersections safer and more efficient for drivers, pedestrians and cyclists. Roundabouts have been proven to significantly reduce the risk of injury collisions. Learn more about roundabouts and their benefits.

Project Benefits

Roundabouts help reduce the likelihood and severity of collisions:

  • Low travel speeds – Drivers must slow down and yield to traffic before entering a roundabout. Travel speeds in a roundabout are typically between 15 and 20 miles per hour. The few collisions that occur in roundabouts are typically minor and cause few injuries since they occur at such low speeds.
  • No light to beat – Roundabouts are designed to promote a continuous, circular flow of traffic. Drivers need only yield to traffic before entering a roundabout; if there is no traffic in the roundabout, drivers are not required to stop. Because traffic is constantly flowing through the intersection, drivers don't have the incentive to speed up to try and "beat the light," like they might at a traditional intersection.
  • One-way travel – Roads entering a roundabout are gently curved to direct drivers into the intersection and help them travel counterclockwise around the roundabout. The curved roads and one-way travel around the roundabout reduce the risk of T-bone and head-on collisions.

What is the project timeline?

  • August 2011 - We began designing this project.
  • April 24, 2012 - Project open house at Lake Stevens High School Commons, 5:30 - 7:30 p.m.
  • January 2013 - We advertised the project for competitive bidding.
  • March 20, 2013 - We awarded the project to Graham-Marshbank, JV for $7,131,691.
  • Summer 2013 - We began construction.
  • Nov. 14, 2013 - The project is operationally complete.
  • Spring 2014 - Completion of final pavement makings and other minor work.

Financial Information

Financial Data for PIN 109200B, 109201A
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $7,763
Total $7,763

Project signage will reflect the cost of construction engineering, project bid award and sales tax.


How can I get more information?
Mary Ann Reddell
WSDOT Project Engineer
Phone: 425-225-8725

Kris Olsen
WSDOT Communications
Phone: 206-440-4704

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