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Posted on: April 30, 2019

City Supports Interchange Improvements; Urges Additional Weigh Station Analysis

Washington State’s I-90 / SR-18 interchange has been dangerous for quite some time and is becoming increasingly dangerous due to increased Ports of Seattle and Tacoma commerce, the region’s strong economy, and the increased population moving into the area. The City of North Bend supports any improvements to the interchange and SR-18 widening and hopes the State can expedite those much-needed improvements. 

“Council and I fully support the proposed improvements of this interchange and understand the public safety and lack of mobility caused by traffic congestion,” Mayor Ken Hearing said. “We know many of our citizens and people who are employed in North Bend are among those affected.” 

Because of the proposed geometry and configuration of the I-90 / SR-18 improvements, the existing I-90 westbound weigh station at Exit 25 needs to be removed. Washington State Patrol (WSP) has said they will not agree to close the existing weigh station without a relocation being secured.  

WSP’s most desired location is at mile marker 33.5 located between 436th Avenue SE (Exit 32) and 468th Avenue SE (Exit 34), which is inside the City’s Urban Growth Area. That location would be larger than any other WA State I-90 weigh station, consisting of approximately 6 to 8 acres of new concrete and asphalt.  

The City does not support a weigh station at mile marker 33.5 and believes the State should conduct additional analysis to determine if constructing a new truck weigh station is truly necessary.  

“Our goal is to make this interchange safer as soon as possible. To this end, I believe that these two projects need to be separate from each other,” Mayor Hearing said. “The proposed relocation of the current westbound weigh station is for an eastbound station. Our concern is that more trucks will use our local roads to circumvent the station and cause congestion and pavement damage to North Bend Way.” 

Each potential weigh station site should be carefully evaluated based on several factors, including environmental impacts (such as impacts to nearby drinking water wells); noise and lighting impacts to nearby property owners, costs to construct a new weigh station, safe access from I-90 and transportation impacts to residents.  

Additionally, the State must consider the noise and air pollution implications to school children playing outside at Camp Waskowitz, a Highline School District campus located adjacent to the proposed location. The State’s preferred location is also in close proximity to a drinking well for this school and other wells in a wellhead protection zone. 

For more information about this project, visit:

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