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SR 150 - No See-Um Road Intersection Improvements

The preferred alternative, a roundabout is now being designed.
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  This project is located at SR 150 and No See-Um Road at Milepost 7 along the north shore of Lake Chelan.

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  Before - the SR 150/No See-Um Road intersection.

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View Roundabout Alternative


Fall 2015

Three years ago the legislature funded this project for planning and design. The final recommended alternative following the engineering study was to build a roundabout.

The legislature's 2015 "Connecting Washington" revenue package. included $6.5 Million in final design and construction funding. The project is anticipated to be completed no later than 2018.

Opportunities for the public to learn about the plans, timing and construction impacts will be scheduled as the design work progresses.

We continue to seek your comments. Please email us.

This I-2 Highway Capital Improvement Program Collision Prevention Safety Project would construct improvements to the intersection of SR 150 and No See-Um Road between Manson and Chelan.

Why is WSDOT improving this intersection?
Even with hundreds of yet-to-be-developed residential lots that will be accessed through this intersection, the current average traffic count has already risen to 10,000 vehicles per day. These volumes are producing more and longer delays for side-road traffic - the result of the lack of gaps to turn onto the highway. Faced with these conditions, drivers are sometimes making decisions that result in a collision or a near miss. 

The proposed roundabout is to reduce collisions, delays and improve bicycle and pedestrian mobility and access to Lake Chelan. 

The End Result
A new intersection to accommodate higher traffic volumes while reducing the potential for serious collisions.

Project Benefits

  • Reduced potential for serious collisions and improved traffic flow
  • Better motorist information from new signs and striping
  • Extended roadway life with new pavement
  • Reduced maintenance costs 

What is the project timeline?
The 2015 Connecting Washington budget includes $6.5 Million for design, acquisition of right of way and construction of the roundabout by 2018. 

Financial Information

Financial Data for PIN 215000K
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $6,500
Total $6,500

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

How can I get more information?

Kevin Waligorski 
Project Engineer
WSDOT North Central Region
2830 Euclid Ave
Wenatchee, WA 98807
Phone: (509) 667-2860 or toll free (888) 461-8816

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