US 97 Omak Area Transportation Study

Study news

The study concluded in June 2019 and the final report was drafted this summer.  The study identified clear trends of prioritizing safety and mobility at the study intersections, with additional emphasis on strategies that can be implemented in the near term or that improve multimodal connectivity.

The strategies that were developed to address the identified needs of each focus area, with selected strategies that balance meeting identified needs with cost effectiveness.

The final report focuses on US 97 intersections from the 12 Tribes Casino to Sand Flat Road:

Study Focus Areas and Recommended Strategies

Sand Flat Road

Reduce speed limit.

Shumway Road

Add fourth leg and two-way stop control for short term benefit and low traffic volume uses, with a roundabout for long term benefit when traffic volumes increase.

Engh Road


Quince Street


Dayton Street

Add a flashing yellow arrow, optimize signal timing and construct sidewalks from the intersection to the community center.

12 Tribes Casino

Roundabout with closure and relocation of Fairgrounds Access Rd.

Non motorized travel between Omak Avenue and Walmart

A trail that follows along the west side of US 97 from Omak Avenue (SR 155) to Riverside Avenue, and crosses the river with a pedestrian bridge.

Non motorized travel between Omak Avenue and the 12 tribes Casino

A trail that follows along the east side of US 97 from Dayton Street to the casino, crossing over Rodeo Trail Road with a pedestrian bridge.

SR 155 at East Omak Elementary

Add sidewalks on the south side of East Omak Elementary school, rectangular rapid flashing beacons at existing crossing locations, and radar feedback school zone speed signs.

Truck Route signage

Add truck route signs to existing directional signage.

Needs & benefits

This study had four objectives:

  • Reach consensus on what are the most pressing transportation needs.
  • Identify the most cost-effective ways to address those needs.
  • Create a plan to phase construction of the projects as funding becomes available.
  • Realize strong community support and buy in.


The information gathered in this study has been organized into a final report.  A copy of this report is available upon request.  

Some of the strategies recommended in this report can be implemented immediately, and some of the strategies will require many steps to occur before they can be can be constructed. Some of the strategies may only be needed if future growth and development occurs near the focus area intersections. The City, County, and CCT can use this study as the guiding document for improvements within the study area. The study can also be helpful for reviewing impacts of future development, competing in future grant cycles, and gathering community support for improvements.


This study was funded through State Transportation Funds.


Nicholas Manzaro
North Central Region
Planning Manager