SR 4 over Mill Creek
GoodCowlitz County, Washington · 2.0 E Wahkiakum CO · Structure no. 0007004A0000000
- Built
- 1963
- 62 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 165 ft
- 1 main span
- Daily traffic
- 3,993
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 4 over Mill Creek is a steel stringer/multi-beam or girder carrying SR 4 over Mill Creek in Cowlitz County, Washington. It was built in 1963, so it is 62 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 3,993 vehicles a day, roughly 10% of them trucks, projected to reach 5,271 by 2039. The structure is 165 ft (50.3 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| 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 SR 4 over Mill Creek built?
It was built in 1963, making it 62 years old in 2025.
What condition is SR 4 over Mill Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.
How much traffic does SR 4 over Mill Creek carry?
About 3,993 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is SR 4 over Mill Creek?
The structure is 165 ft (50.3 m) long with a longest span of 160 ft (48.8 m) and a deck 34 ft wide.
Who owns SR 4 over Mill Creek?
It is owned by the State Highway Agency.