Help us celebrate the end of major construction for the East Marginal Way Corridor Improvement Project!

What: Celebration event with a ribbon cutting, tabling by community partners, and free food and drinks! This is the last stop for Hot Bike Summer – If you have been following along, bring your passport to collect your prize!
Where: E Marginal Way S and S Hanford St
When: Saturday, October 25, from 10:30 AM to 12 PM
Ride with a group: Bike or scoot to the event with our partners at Cascade Bicycle Club, West Seattle Bike Connections, and Best Side Cycling.
Ride from Seacrest Park in West Seattle
Ride from the Seattle Ferry Terminal in Downtown
Since 2015, this project has moved forward in collaboration with freight and maritime leaders, the bike community, community advocates, local and federal agencies, and the support of our funding partners. Thanks to you, we are delivering improvements to safety, mobility, and efficiency for all users of this critical corridor.

What we’re celebrating
Heavy Haul street paving: 15-inch thick concrete street designed for heavier freight loads, reduced maintenance, and longer lifespan.
New two-way protected bike lane: Separated from people driving by wide planting strips, curbs, or concrete barriers with railings, plus new bike signals, upgraded crossings, and lean rails.
Sidewalk upgrades: Rebuilt west-side sidewalk with ADA-compliant curb ramps and crossings, linking the West Seattle Bridge Trail to downtown.
Railroad crossing upgrades: Improvements at S Hanford St for both trains and people walking or biking.
Traffic signal upgrades: Freight- and bike-priority signals at S Hanford St and S Horton St, plus a new dynamic message sign at S Alaska St for real-time conditions.
Tree and habitat improvements: 261 new street trees and a native pollinator mix to enhance the SODO streetscape and support local ecology.
Utility upgrades: Water-main replacement and stormwater improvements in partnership with Seattle Public Utilities to reduce flooding risks.