Department of Transportation Scott Kubly, Director
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Rainier Avenue South Road Safety Corridor

Construction Notice

Construction Notice

Join Mayor Ed Murray and the Seattle Department of Transportation (SDOT) to learn more about several transportation projects and planned changes to improve safety and access in your neighborhood:

Rainier Community Center Gymnasium, 4600 38th Avenue S
Doors open at 7 PM, with a formal program beginning at 7:30 PM.

Rainier Valley Transportation Projects – July 30 Open House Presentation

rainier valley

Flyer - Cambodian
Flyer - Vietnamese
Flyer - Tagalog
Flyer - Somali
Flyer - Amharic
Flyer - Spanish
Flyer – Chinese (traditional)
Flyer – Chinese (simplified)
Flyer – Oromo

View the most recent boards and presentations:

Rainier Road Safety
Rainier Design Alternatives Overview
Rainier Beach Safety Improvements
View the February presentation
View the March presentation

Launching November 2014 – the Rainier Avenue South Safety Corridor Project – a multi-year effort to improve safety for all through street improvements, increased enforcement efforts, and educational outreach.

The Seattle Department of Transportation (SDOT) is launching a collaborative process to review roadway conditions along Rainier Avenue South. As safety is our number one priority, we are committed to preventing collisions and improving safety for all users of the transportation system.

Together we will determine the specific nature and design elements of these changes through the process described below. New safety measures to be considered through this project will include: arterial traffic calming, traffic signal modifications, pavement repair, and pedestrian and bicycle safety enhancements. To address behavioral issues like speeding, distraction and impaired driving, we will develop targeted enforcement strategies and area-specific educational outreach.

This project will focus on the segment of Rainier Avenue South from Letitia Avenue South to Seward Park Avenue South.

Facts about Rainier Avenue South

  • Principal arterial classification
  • Adjacent land uses:
    • Single family and multi-family residential, commercial, industrial
    • Libraries, parks, community centers, senior housing and senior centers
    • More than 10 schools and daycare centers within three blocks of Rainier
  • Speed limit 30 mph
  • Busy transit corridor
  • Average Daily Traffic – 19,700 to 26,600 vehicles per weekday
  • 1243 total collisions, 630 injuries and two fatalities January 2011 through September 2014

Get Involved

A series of community meetings have been scheduled to listen to community concerns, share traffic data, and develop strategies to lower vehicle speeds and reduce collisions. These meetings are open to the general public and all are welcome.
Somali, Vietnamese and Chinese translators will be available at these meetings.

Issue Identification and Feedback Sessions – November 2014

Purpose: Review existing conditions and traffic data, discuss toolbox of potential engineering and enforcement strategies, and hear concerns and ideas from residents

Download SDOT’s presentation here


Conceptual Designs – November through January

SDOT will define potential roadway improvement alternatives based on community input and traffic data

Design Alternatives Review Meetings – February 2015

SDOT will share conceptual improvement options and seek comments from the community

Announcement of Preferred Alternative – June 2015

Open house style meeting(s) to review SDOT’s preferred alternative and implementation plan

Implementation – Spring or Summer 2015

  • Short-term improvements, such as changes to signs and pavement markings, will begin
  • Design for civil improvements will begin with construction/installation in 2015
  • SDOT will develop a funding strategy for longer term improvements

Ongoing – Evaluation

  • Seek and respond to community feedback
  • Collect and evaluate speed, volume and collision data at one-year intervals
  • Make adjustments if needed

Stay Connected

The Seattle Department of Transportation is dedicated to providing frequent and timely updates throughout the process. Subscribe to email alerts to receive the latest information including public comments, recommendations, and meeting announcements.

If you have questions or would like to share your perspective on Rainier Avenue South, please contact Jim Curtin at 206-684-8874 or via e-mail at

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More about Road Safety Corridor Projects

SW Roxbury Street Road Safety Corridor –

35th Avenue SW Road Safety Corridor –

Aurora Traffic Safety Project –

Lake City Way Traffic Safety Project –

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