Mill Creek RD over Mill Creek
PoorWalla Walla County, Washington · 10.28 SE Isaacs Ave · Structure no. 081484000000000
- Built
- 1981
- 44 years old
- Condition
- Poor
- inspected September 2024
- Type
- Slab
- Concrete Continuous
- Length
- 154 ft
- 3 main spans
- Daily traffic
- 380
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Mill Creek RD over Mill Creek is a concrete continuous slab carrying Mill Creek RD over Mill Creek in Walla Walla County, Washington. It was built in 1981, so it is 44 years old, younger 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 3 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 380 vehicles a day, roughly 10% of them trucks, projected to reach 560 by 2046. The structure is 154 ft (46.9 m) long and 35 ft wide. If it were closed, the detour would be 39.8 mi (64 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mill Creek RD over Mill Creek built?
It was built in 1981, making it 44 years old in 2025.
What condition is Mill Creek RD 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 2024.
How much traffic does Mill Creek RD over Mill Creek carry?
About 380 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is Mill Creek RD over Mill Creek?
The structure is 154 ft (46.9 m) long with a longest span of 64 ft (19.5 m) and a deck 35 ft wide.
Who owns Mill Creek RD over Mill Creek?
It is owned by the County Highway Agency.