Wallula Ave over Mill Creek
PoorWalla Walla County, Washington · 00.10 E SR 12 · Structure no. 083738000000000
- Built
- 1947
- 78 years old
- Condition
- Poor
- inspected September 2023
- Type
- Tee Beam
- Concrete
- Length
- 80 ft
- 2 main spans
- Daily traffic
- 948
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Wallula Ave over Mill Creek is a concrete tee beam carrying Wallula Ave over Mill Creek in Walla Walla County, Washington. It was built in 1947, so it is 78 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 948 vehicles a day, roughly 10% of them trucks, projected to reach 1,047 by 2040. The structure is 80 ft (24.4 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Wallula Ave over Mill Creek built?
It was built in 1947, making it 78 years old in 2025.
What condition is Wallula Ave over Mill Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.
How much traffic does Wallula Ave over Mill Creek carry?
About 948 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is Wallula Ave over Mill Creek?
The structure is 80 ft (24.4 m) long with a longest span of 38 ft (11.6 m) and a deck 29 ft wide.
Who owns Wallula Ave over Mill Creek?
It is owned by the County Highway Agency.