About the Program

Understanding the Interstate Bridge Replacement Program

The Interstate Bridge is a critical connection between Oregon and Washington, located on Interstate 5 where it crosses the Columbia River

Replacing the aging Interstate Bridge across the Columbia River with a modern, seismically resilient, multimodal structure that provides improved mobility for people, goods and services is a high priority for Oregon and Washington. 

Program Location Map

We need to solve these problems

While the program continues working with stakeholders and the public to identify what has changed, we know that all of the problems identified in previous planning work remain current issues that have not been addressed. 

Share your thoughts  View our fact sheet

  • Congestion

  • Earthquake Vulnerability

  • Safety

  • Impaired Freight Movement

  • Inadequate Bike & Pedestrian Paths

  • Limited Public Transportation

Drivers enter and exit the original bridge pre-1960.

Land where the Interstate Bridge was constructed is rich in history

Local Native American tribes frequented the shores and routinely traveled the Columbia River to trade and practice usual and accustomed traditions since time immemorial. The bridge was built in the shadow of historic Fort Vancouver, which has transitioned from a fur trading post, to a military fort, to a National Park System National Historic Site.

When the northbound section of the interstate bridge opened in 1917, it was the first automobile bridge across the river between Washington and Oregon. There was a 5¢ toll, per vehicle or horse, to cross the 38-foot-wide roadway. Electric streetcars operated across the bridge from opening day in 1917 until 1940. The bridge became part of Interstate 5 in 1957. Along with the new interstate system came a second parallel bridge, which opened to traffic in 1958, and carried a toll for vehicles crossing the bridge.

Beyond concrete and steel

Beyond the concrete, asphalt and steel of the existing interstate bridge is a thriving background of scenic views, natural systems, and a rich history of our region’s national heritage. How our transportation infrastructure is developed has an impact on the character and health of our communities, and that of the natural environment. The Interstate Bridge Replacement program is committed to promoting best ways to minimize, avoid, and mitigate impacts of replacing and operating this key connection within our community.

Bi-state leadership initiates the restart of bridge replacement efforts

Recognizing that regional transportation issues and necessary improvements to the Interstate Bridge remain unaddressed, both Washington and Oregon have dedicated a combined $50 million for Interstate Bridge replacement planning work. The IBR program will leverage work from previous planning efforts where appropriate and update prior studies to integrate new data, regional changes in transportation, land use and demographic conditions, and public input to inform program development work.

Previous Planning Work

Regional leaders identified the need to address the I-5 corridor, including the Interstate Bridge, through previous bi-state, long-range planning studies. In 2004, the Washington and Oregon Departments of Transportation formed a joint Columbia River Crossing (CRC) project. The intent of this project was to improve safety, reduce congestion, and increase mobility of motorists, freight traffic, transit riders, bicyclists, and pedestrians. This project was active between 2005 and 2014 and successfully received a federal Record of Decision in December 2011. However, the CRC project did not secure adequate state funding to advance to construction.

Columbia River Crossing: I-5 Bridge Planning Inventory (2017) and Historical Documents

Program Timeline

The IBR program team will work in collaboration with local, state, federal and tribal partners, and the community to complete the following work over the next four years.

  • Complete the federal environmental review process
  • Obtain necessary state and federal permits
  • Finalize project design
  • Develop a finance plan
  • Secure adequate funding
  • Complete right of way acquisition
  • Advertise for construction

Based on previous planning activities, we estimate it will take three to five years to complete the environmental review process and obtain federal approval before beginning construction. The environmental review process began in 2021.

Program timeline includes program launch in 2020, Planning in 2021, Environmental from late 2021- 2023 and Pre-construction from 2024-2025

Understanding the Federal Environmental Review Process

The National Environmental Policy Act (NEPA) of 1969 requires Federal agencies to assess and disclose the environmental effects of Federal actions prior to making decisions. You can read more about NEPA and the environmental review process at the Council on Environmental Quality’s NEPA webpage, Federal Highway Administration’s (FHWA) Environmental Review Toolkit, or Federal Transit Administration (FTA’s) Environmental Review Process.

In 2011, a Final Environmental Impact Statement (EIS) and Record of Decision (ROD) was published for the I-5 Columbia River Crossing Project in compliance with the National Environmental Policy Act (NEPA) of 1969.

Diverse Community

Get Involved!

We want to hear from you. Help us shape this program.
A transparent public process with extensive and inclusive community involvement is a critical component to identifying a solution the region supports.

Learn More