Mill Creek RD over Mill Creek
FairCowlitz County, Washington · 1.66 N SR 4 (mp 47.64) · Structure no. 080785000000000
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 58 ft
- 3 main spans
- Daily traffic
- 145
- 2020 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 Cowlitz County, Washington. It was built in 1960, so it is 65 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 5 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 145 vehicles a day, roughly 5% of them trucks, projected to reach 195 by 2040. The structure is 58 ft (17.7 m) long and 29 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 1960, making it 65 years old in 2025.
What condition is Mill Creek RD 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 August 2023.
How much traffic does Mill Creek RD over Mill Creek carry?
About 145 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Mill Creek RD over Mill Creek?
The structure is 58 ft (17.7 m) long with a longest span of 25 ft (7.6 m) and a deck 29 ft wide.
Who owns Mill Creek RD over Mill Creek?
It is owned by the County Highway Agency.