City of Walla Walla
Home GO Menu2026 4th Avenue and 6th Avenue Bridge Replacement
Updated: September 26, 2024
Project Update
David Evans and Associates, Inc. was awarded a professional services contract on July 24, 2024, to provide the project design.
The weeks of September 30 thru October 18 crews will be doing roadway surveying and material testing on 4th and 6th on both sides of each bridge in preparation for project design. Similar work will also occur on Sumach from 4th to 6th. There will be several days when road closures are needed, and street parking will be unavailable. Please pay attention to the no parking signs and road closure barricades. Local access will be allowed during daytime closures and roads will be open at night.
What is this project going to accomplish?
The project will remove the existing bridges over Mill Creek located on North 4th Avenue and North 6th Avenue and replace each bridge with a similar vehicle structure. Roadway and utility improvements will occur on the north and south side of each bridge from Sumach Street to Rose Street. Roadway and utility improvements will also occur on Sumach from 5th to 6th.
Project Schedule
- Design – expected completion in Fall 2025.
- Construction – tentative schedule is 4th Avenue bridge in 2026; 6th Avenue bridge in 2027, and Sumach between 5th Avenue to 6th Avenue.
How will this project be funded?
The total project cost to replace both bridges is estimated at $13.4 million. It is fully funded by a federal Local Bridge Program grant.