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Portland Bureau of Transportation

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News Release: PBOT moves forward with signal design for SW Garden Home Road and SW Multnomah Boulevard

SW Garden Home and Multnomah Intersection design

(April 25, 2019) The Portland Bureau of Transportation (PBOT) announced today that they have chosen a traffic signal for the new intersection design at SW Garden Home Road and Multnomah Boulevard as part of the SW Multnomah Blvd / Garden Home Road Intersection Safety Project.

PBOT, through a funding partnership with Washington County, plans to improve the intersection of SW Multnomah Boulevard, Garden Home Road and 69th Avenue to reduce crashes, improve sight distance, address queueing issues, and provide safer, more comfortable pedestrian and bicycle facilities. The intersection sees approximately 17,000 vehicles daily. Over the ten-year period from 2006 to 2015, the intersection has seen 33 total reported crashes, including one fatal crash, five bicycle crashes, 15 crashes involving turning vehicles, 11 rear-end crashes, and three run-off road crashes.

Current conditions at SW Multnomah and Garden Home

Current conditions at the intersection of SW Multnomah Boulevard and Garden Home Road. Image courtesy of Google.

The intersection design was determined after an extensive public engagement process which included an open house, an online survey with over 900 responses, as well as office hours for one-on-one discussions with PBOT’s project manager. Community members were asked to choose between two design options: a roundabout or a traffic signal. While more members of the community supported the roundabout option, there were concerns about the design not creating a clear separation for people walking and biking. There was also overwhelming consensus for PBOT to build this important safety improvement in a timely manner. With a significant cost difference between the roundabout design and a traffic signal – estimates for a roundabout were approximately $6M versus $4M for a signalized intersection – the bureau determined the best course of action was to proceed with the traffic signal option as securing additional funding for the roundabout design could put the project on hold indefinitely.

Thanks to the rich feedback from the community, the bureau has adjusted the signal design in response to suggestions and concerns received during the public comment period. PBOT will create dedicated space and safety for people walking and biking, while maintaining vehicle access to the SW 69th Avenue and The Old Market Pub, by moving the intersection slightly to the east.

New intersection design

The intersection at SW Multnomah Boulevard and Garden Home Road will feature signalized pedestrian crossings and bike lanes. Specific design details will be provided later this year after PBOT begins the design process.

As the new intersection enters the detailed design and engineering phase, PBOT is already implementing a speed reduction to SW Multnomah Boulevard for safety. In the coming weeks PBOT crews will be changing speed signage on the corridor with speeds on SW Multnomah Boulevard dropping from 35 mph to 30 mph from the SW Barbur Boulevard overcrossing to SW 45th Avenue and from 40 mph to 35 mph from SW 45thAvenue to SW Kelsi Court.

The intersection project is funded jointly by Washington County ($1M) and the City of Portland’s Transportation System Development Charges ($1.15M). PBOT is also coordinating with the City of Beaverton, Beaverton School District, TriMet, the City of Portland Bureau of Environmental Services, Portland Fire & Rescue and Tualatin Valley Fire & Rescue.

“We are grateful to the Southwest Portland community for their engagement and support of this project and to our partners in Washington County for their contribution as well,” said Chris Warner, Interim Director of the Portland Bureau of Transportation. “We look forward to building these much-needed safety improvements at this busy intersection that serves thousands of people who walk, bike, roll, take transit and drive.”

“Washington County is excited to support the City of Portland in making this project a reality,” said Andrew Singelakis, Director Washington County Department of Land Use and Transportation. “It’s a great example of agencies working together collaboratively to improve our community.”

"On behalf of the Community Participation Organization (CPO3) in the Garden Home, Raleigh Hills and West Slope area of Washington County, I appreciate that the Portland Bureau of Transportation provided an inclusive forum with numerous ways to have this conversation. PBOT listened to a gymnasium full of neighbors that voiced their many concerns and took these into consideration in the overall decision-making process,” said Stan Houseman, Chair of Washington County CPO3 for Garden Home, Raleigh Hills and the West Slope. “Due to the heavy traffic in this area which encompasses nearby SW Oleson and Garden Home Roads, plus knowing that more is coming every year, our main concerns are increased safety and efficient traffic flow for all.” 

“The Ashcreek Neighborhood Association truly appreciates the attention PBOT is giving this intersection. While the numbers and data may not reflect the frustration most of our neighbors experience at this intersection, we welcome any change for the better to the current chaotic traffic flow,” said Jerry Rundorff, President of Ashcreek Neighborhood Association.

The project design phase will last approximately one year, with construction of the new signal estimated to begin in summer 2021. Sign up for project updates by visiting the project page at www.portlandoregon.gov/transportation/GH.