Long Prairie RD over Mill Creek
GoodTillamook County, Oregon · 010 MI NE Tillamook Airpt · Structure no. 06550 734 00142
- Built
- 1942
- 83 years old
- Condition
- Good
- inspected June 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 52 ft
- 3 main spans
- Daily traffic
- 3,395
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Long Prairie RD over Mill Creek is a concrete continuous tee beam carrying Long Prairie RD over Mill Creek in Tillamook County, Oregon. It was built in 1942, so it is 83 years old, older than the Oregon average of 49.9 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 3,395 vehicles a day, roughly 15% of them trucks, projected to reach 4,030 by 2025. The structure is 52 ft (15.8 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 Long Prairie RD over Mill Creek built?
It was built in 1942, making it 83 years old in 2025.
What condition is Long Prairie RD 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 June 2023.
How much traffic does Long Prairie RD over Mill Creek carry?
About 3,395 vehicles per day (2020 count), of which roughly 15% are trucks.
How long is Long Prairie RD over Mill Creek?
The structure is 52 ft (15.8 m) long with a longest span of 34 ft (10.4 m) and a deck 30 ft wide.
Who owns Long Prairie RD over Mill Creek?
It is owned by the County Highway Agency.