U.S. Highway 97 over Corp RR
FairSiskiyou County, California · 02-SIS-097-0.15-WEED · Structure no. 02 0082
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 226 ft
- 3 main spans
- Daily traffic
- 18,000
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 97 over Corp RR is a prestressed concrete continuous box beam or girders - multiple carrying U.S. Highway 97 over Corp RR in Siskiyou County, California. It was built in 1982, so it is 43 years old, younger than the California average of 54.8 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 18,000 vehicles a day, roughly 30% of them trucks, projected to reach 32,028 by 2040. The structure is 226 ft (68.9 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 97 over Corp RR built?
It was built in 1982, making it 43 years old in 2025.
What condition is U.S. Highway 97 over Corp RR 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 April 2023.
How much traffic does U.S. Highway 97 over Corp RR carry?
About 18,000 vehicles per day (2015 count), of which roughly 30% are trucks.
How long is U.S. Highway 97 over Corp RR?
The structure is 226 ft (68.9 m) long with a longest span of 92 ft (28 m) and a deck 55 ft wide.
Who owns U.S. Highway 97 over Corp RR?
It is owned by the State Highway Agency.