Mill Creek RD over Mill Creek
PoorCowlitz County, Washington · 0.19 N of SR 4 (mp 47.64) · Structure no. 080733000000000
- Built
- 1958
- 67 years old
- Condition
- Poor
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 103 ft
- 3 main spans
- Daily traffic
- 700
- 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 1958, so it is 67 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 700 vehicles a day, roughly 5% of them trucks, projected to reach 900 by 2040. The structure is 103 ft (31.4 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mill Creek RD over Mill Creek built?
It was built in 1958, making it 67 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 August 2023.
How much traffic does Mill Creek RD over Mill Creek carry?
About 700 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Mill Creek RD over Mill Creek?
The structure is 103 ft (31.4 m) long with a longest span of 41 ft (12.5 m) and a deck 32 ft wide.
Who owns Mill Creek RD over Mill Creek?
It is owned by the County Highway Agency.