Documents + Information

Program Information

Program Factsheets

General Factsheet (June 2025) | Spanish
Cost Estimate (June 2025) | Spanish
Why Now Fact Sheet (May 2024)
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Workforce Resources
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Program Investment Videos

IBR Recommended Modified LPA

The Modified Locally Preferred Alternative (LPA) is a foundation for what to study in the Supplemental Environmental Impact Statement. The program acknowledges that additional work and analyses beyond what is reflected in the Modified LPA will be necessary as the program moves forward. Information about the Modified LPA can be found in the documents listed below.

The Modified LPA was endorsed by all eight local partner agencies in summer 2022. As part of the endorsement process, the program received 175 conditions reflecting partner priorities and requests for additional work. The majority of agency conditions were in alignment with others received and many were already included in program plans for upcoming work. The initial responses sent to each agency identifying how these conditions are being incorporated into current program plans are linked below. Conversations have been ongoing with partner agencies to better understand their requests and identify how the remaining conditions that require more consideration will be addressed.

Modified LPA Partner Conditions (Dec 2022)

Responses to Conditions (2022)

Responses to Conditions (2024)

Previous Documentation

IBR Modified LPA Partner Endorsements (July 2022)
DRAFT Program Commitments

*Remediation available upon request.

Technical Documents

Understanding River Navigation Considerations

River Crossing Options Executive Summary

Movable Span Options Executive Summary

River Crossing Option Comparison

River Crossing Bridge Clearance Assessment Report – Movable Span Options

Immersed Tube Tunnel (ITT) Analysis

ITT Concept Assessment Document (Rev2. September. 2023)
Context for the ITT Analysis
Conceptual Assessment Presentation

Environmental Documents

Review the Draft SEIS and technical reports

Re-Evaluation of the Columbia River Crossing Final Environmental Impact Statement and Record of Decision (ADA Compliant) (February 2022)
Re-Evaluation of the Columbia River Crossing Final Environmental Impact Statement and Record of Decision (original) (February 2022)
Cover Letter and Federal Agency Response (May 2021)
Columbia River Crossing: Environmental Process and Permitting

Memos on solutions that do not meet the Purpose and Need

Permitting

Financial Reports

Below, find updated finance reports documenting information about the economic impact analysis, tolling analysis, financial planning, and risk assessment efforts completed for components included in the Modified Locally Preferred Alternative which were approved for further analysis in July 2022. Cost estimates and financial plans will continue to be updated as the program is refined.
For more information about cost estimates and finance plans, please see the Cost, Funding & Economic Benefits page.