IRR Thorton CR RD over Thorton Creek
FairLincoln County, Oregon · 007 M N HWY20 at Chitwood · Structure no. 12120A422010067
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected September 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 25 ft
- 1 main span
- Daily traffic
- 47
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
IRR Thorton CR RD over Thorton Creek is a prestressed concrete slab carrying IRR Thorton CR RD over Thorton Creek in Lincoln County, Oregon. It was built in 1971, so it is 54 years old, older than the Oregon average of 49.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 47 vehicles a day, projected to reach 109 by 2040. The structure is 25 ft (7.6 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 IRR Thorton CR RD over Thorton Creek built?
It was built in 1971, making it 54 years old in 2025.
What condition is IRR Thorton CR RD over Thorton 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 September 2024.
How much traffic does IRR Thorton CR RD over Thorton Creek carry?
About 47 vehicles per day (2020 count).
How long is IRR Thorton CR RD over Thorton Creek?
The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m) and a deck 16 ft wide.
Who owns IRR Thorton CR RD over Thorton Creek?
It is owned by the County Highway Agency.