As of March 2020
Phase: Design Complete
This project will select a concept for the intersection of Greenwood Avenue N with N 160th Street and NW Innis Arden Way.
The Concept Design and Comparison Report is complete. This report brings the two concepts (roundabout and signal) to 10% design to inform selection of a preferred concept. The final report with both concept designs can be found at the following links:
- 10% Roundabout Concept
- 10% Signalized Concept
- Concept Design and Comparison Report for 160th and Greenwood/Innis Arden Intersection Design
The City and College are currently working towards a final solution to determine the selection of the final concept. The website will be updated once the selection is made and more information on design and construction schedules are known.
Shoreline Community College's student housing building obtained its Certificate of Occupancy on January 30, 2020.
Open House #2: Materials, Presentation
The July 22, 2019 public meeting was attended by about 10 residents. We received valuable feedback on the two conceptual design options. If you were not able to attend, the following materials and presentation from that event are available below.
- Video of Presentation
- Presentation Slides
- Outreach Summary Report
- Project Overview and Timeline (display boards)
- Roundabout Concept (display board)
- Signalized Concept (display board)
- Concept Comparison (display board)
Open House #1: Materials, Presentation
The May 8, 2019 public meeting was attended by about 30 residents. We received valuable feedback on the three design options. If you were not able to attend, the materials and presentation from that event are available below.
- Outreach Summary Report
- Open House Presentation Slides
- Project Overview and Timeline
- Evaluation Criteria
Roundabout Information and Handouts:
- Typical Signalized Intersections vs. Typical Roundabouts
- Roundabouts and Traffic Signals in Other Cities
- Understanding Roundabouts
- Modern Roundabouts (AARP)
- Roundabouts: A Safer Choice (Federal Highway Administration)
- Roundabouts: with Pedestrians and Bicycles (Federal Highway Administration)
Overview and History
Shoreline Community College is building student housing on campus. The College did a traffic study for the new housing. It shows that the City’s delay standards aren’t being met at the intersection of Greenwood Avenue N with N 160th Street and NW Innis Arden Way. The College has six years to improve the intersection from when the student housing building is complete and obtains a Certificate of Occupancy.
City Council approved a capital project to develop a design concept for improving the intersection. This project will focus on:
- Talking to the community
- Completing traffic analysis
- Selecting a concept that improves safety and mobility for all people
The current intersection has stop signs. The City will be evaluating the use of traffic signals or roundabouts for the intersection.
The College will finish the design and build the project by fall 2025. We know this is an important intersection for the neighborhood and want your input in the design. Please stay tuned for opportunities to participate, and public meeting information.