Earthquake Ready Burnside Bridge project logo

Portland’s aging downtown bridges are not expected to withstand a major earthquake. That’s why Multnomah County is taking the lead on making at least one crossing earthquake ready. Located in the heart of downtown, the Burnside Bridge is a regionally established lifeline route across the Willamette River.

We completed a feasibility study in 2018. This study produced four options to replace or upgrade the bridge. The next step is to learn the potential environmental effect of each of these options.

Environmental Review

For the Environmental Review phase, the county will prepare an Environmental Impact Statement (EIS). The EIS will study and document the effects of the four alternatives and a no-build option on people and the environment.

The EIS will include public input. Later in 2019, the public will be asked to review and comment on important elements of the study. These include:

  • the purpose and need of the project
  • the scope of the environmental studies
  • the four bridge options
  • the criteria used to evaluate the four bridge options and the no-build option

As the environmental review phase continues, we will ask for input on choosing a preferred option.


  • The Draft EIS will identify a preferred option by the end of 2020.
  • The Final EIS and a Record of Decision will make the final choice of the preferred option by fall of 2021.
  • Design work and construction will take place in 2022-2028, depending on funding.

Burnside Bridge Maintenance Project

We are also doing maintenance on the Burnside Bridge through 2019. The Burnside Bridge Maintenance Project will repair and improve the bridge to keep it safe and working for another 15-20 years.

Questions or Comments? 

Please use this form to contact the project team with any questions or comments or to sign up for project updates.

The information presented here, and the public and agency input received, may be adopted or incorporated by reference into a future environmental review process to meet the requirements of the National Environmental Policy Act.