This project will evaluate, design, and construct safety improvements on U.S. 97 through Terrebone. The current design includes an interchange at U.S. 97 and Lower Bridge Way, speed lowering interventions, and pedestrian safety improvements to reduce crashes and increase driver awareness.
This segment of U.S. 97 is located in the northern limits of Deschutes County and serves the greater Terrebonne area and a large residential development in Deschutes and Jefferson Counties, Crooked River Ranch, via the Lower Bridge Way/U.S. 97 intersection. U.S. 97 is a statewide highway and designated freight route that travels through the center of the Deschutes County unincorporated community of Terrebonne. The segment of U.S. 97 pertaining to the Urban Design Concurrence form is located between approximately 1,500 feet north of the US97/Lower Bridge Way intersection (mile point 114.92) and approximately 1,000 feet north of the U.S. 97/NW Odem Avenue intersection (mile point 116.29).
The highway separates commercial, residential, and community land uses on the west and east sides of U.S. 97. North and south of Terrebonne, U.S. 97 is an access-controlled statewide highway.
There are components of the project along U.S. 97 and also several local streets within unincorporated community of Terrebonne. The purpose of the project to improve multimodal safety, accessibility, and efficiency along and across U.S. 97 within the unincorporated community of Terrebonne. The project aims to specifically address the following needs:
• Ensure connectivity and access for all users in Terrebonne
• Address U.S. 97/Lower Bridge Way safety for all road users
• Maintain U.S. 97 as a key freight corridor
In addition, a fundamental component of the project is to address the U.S.97 highway transition north and south of Terrebonne to reduce travel speeds into the community . In order to achieve this objective, the project will provide traffic calming measures and speed management treatments along the north and southbound approaches into Terrebonne along U.S.97. The target speed within the community of Terrebonne will range from 25 – 35mph; with an emphasis on lower speeds where pedestrian and bicycle activity is currently and forecasted to be highest based on surrounding land uses.
Specific project components include:
Highway Improvements (ODOT):
• Construct a new full access diamond interchange with combined “dogbone” ramp terminals at U.S.97/Lower Bridge Way intersection.
• Provide pavement preservation along U.S. 97 between the U.S. 97/Lower Bridge Way interchange and chicane at south end of project.
• Install a northbound chicane on U.S. 97 at the intersection of 11th Street and a southbound chicane at U.S. 97/ Lower Bridge Way interchange.
• Upgrade or install new ADA curb ramps along U.S. 97 and along local streets.
• Install a new enhanced pedestrian crossing on U.S. 97 at Central Ave and upgrade the existing crossing at U.S. 97 and B Ave.
• Install left turn lanes at a new intersection opposite the Alpaca farm access.
• Upgrade and install signing and striping along all roadways.
• Install illumination in the vicinity of the new U.S. 97/Lower Bridge Way interchange.
Local Roadway Improvements (Deschutes County):
• Reconstruct 11th Street from new interchange to Central Ave. with 11' travel lanes and 5' shoulders.
• Reconstruct 11th Street from Central Ave. south to U.S. 97 with 11' travel lanes, 5' shoulder/bike lanes, curb tight sidewalks, ADA curb ramps at all intersections, and on-street parking along west side of street within available right of way.
• Widen Smith Rock Way from 11th Street to the Terrebonne Depot access with 11’ travel lanes, 5’ shoulder/bike lanes, and right of way tight sidewalks.
• Install transit stop on Central Ave. in conjunction with enhance pedestrian crossing at U.S. 97 and Central Ave.
• Upgrade and install signing and striping along all roadways.
• Install dry sewer lines within designated County roadways including 11th Street, B Ave., C Ave, Central Ave. and Smith Rock Way.