Earthquake Ready Burnside Bridge: Recommended Preferred Alternative

Learn why a new movable bridge with long spans is the recommended Preferred Alternative for an earthquake-ready Burnside Bridge.


Earthquake Ready Burnside Bridge: Recommended Traffic Option During Construction

Learn why detouring traffic to other bridges is the recommended option during construction of an earthquake-ready Burnside Bridge. A temporary detour bridge was studied but is not recommended.


Earthquake Ready Burnside Bridge Tour

Take a video tour of the 94-year-old Burnside Bridge and learn what issues need to be tackled to make a new Earthquake Ready Burnside Bridge.


Earthquake Ready Burnside Bridge Environmental Review

Learn how Multnomah County is working to identify the preferred alternative for an earthquake-ready Burnside Bridge and how you can provide input during the planning phase.


Burnside Bridge Street Interviews

People in Portland discuss how they would try to cross the Willamette River after a major earthquake.


Introduction

Multnomah County's Earthquake Ready Burnside Bridge Project seeks to ensure our community has a reliable river crossing on a regional lifeline route after a major earthquake.


Overview

To take us across the river for another hundred years, the Burnside Bridge needs an upgrade.


The Burnside Lifeline

The Burnside corridor, including the Burnside Bridge, serves as a regional emergency transportation route designated to be operational after a disaster.  


Emergency Response

Portland Fire & Rescue frequently uses the Burnside Bridge for daily emergency response -- fire, traffic accidents, and medical emergencies. In the event of a major earthquake, a reliable, central river crossing becomes even more critical to Portland’s emergency responders.


Cascadia Subduction Zone Earthquake

Geologically, Oregon is located in the Cascadia Subduction Zone (CSZ), making it subject to some of the world’s most powerful, recurring earthquakes.


Simulation

This animation shows what could happen to the Burnside Bridge during a magnitude 8+ Cascadia Subduction Zone earthquake.