Wilbur Ave over Mill Creek
FairWalla Walla County, Washington · 00.33 S Isaacs Ave · Structure no. 085392000000000
- Built
- 1955
- 70 years old
- Condition
- Fair
- inspected September 2023
- Type
- Slab
- Concrete Continuous
- Length
- 108 ft
- 3 main spans
- Daily traffic
- 10,053
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Wilbur Ave over Mill Creek is a concrete continuous slab carrying Wilbur Ave over Mill Creek in Walla Walla County, Washington. It was built in 1955, so it is 70 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 10,053 vehicles a day, roughly 5% of them trucks, projected to reach 26,000 by 2043. The structure is 108 ft (32.9 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Wilbur Ave over Mill Creek built?
It was built in 1955, making it 70 years old in 2025.
What condition is Wilbur Ave over Mill Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.
How much traffic does Wilbur Ave over Mill Creek carry?
About 10,053 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Wilbur Ave over Mill Creek?
The structure is 108 ft (32.9 m) long with a longest span of 34 ft (10.4 m) and a deck 46 ft wide.
Who owns Wilbur Ave over Mill Creek?
It is owned by the City or Municipal Highway Agency.