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‎Highlighted Project:‎ ‎ ‎ ‎ ‎ ‎‎ I-84: Grande Ronde River Bridges


Project Details

Details

County:  Union

Nearest City:  La Grande

Highway Name/Number: 006 - Old Oregon Trail

Milepoints: 258.9 to 259.3

Future Cost Range:  $10 million - $30 million

Funding Category: Bridge

Anticipated Programming: 2031-2037

Area Commission on Transportation: NE ACT

Region: 5

Community Benefits

Safety

State of Good Repair

Mobility

Recommended Action

Replacing the bridge decks and railing to preserve the structures.

Widening the eastbound left shoulder and replacing two runs of guardrail with a single run of concrete barrier spanning from leading edge of westbound left side to leading edge of eastbound left side will improve safety for interstate users.



Project Description

The I-84 Grande Rhonde River bridges (east and westbound structures) are critical infrastructure is eastern Oregon, carrying an average of 10,000-15,0000 vehicles daily. The bridge maintains a continuous flow of interstate commerce freight and regional agriculture through Union County. ODOT replaced these bridges in 2004; it is now time to replace the bridge decks to ensure continued operation.

In April 2026, ODOT crews repaired a large hole in a travel lane on the eastbound structure. In addition to the infrastructure concerns, there are safety issues to address following two recent fatal crashes.

Desired Project Outcome

Repair existing interstate bridges (State of Good Repair).

Reduce serious and fatal injury crashes (Safety).

Reduce the number and duration of freeway closures (Mobility).