IRR BIA RTE 167 over Cahto Creek
FairMendocino County, California · 2.4 KM SW of Laytonville · Structure no. 00000000000J007
- Built
- 1978
- 47 years old, rebuilt 2008
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 83 ft
- 1 main span
- Daily traffic
- 3,000
- 2021 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 167 over Cahto Creek is a steel stringer/multi-beam or girder carrying IRR BIA RTE 167 over Cahto Creek in Mendocino County, California. It was built in 1978 and reconstructed in 2008, so it is 47 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 3,000 vehicles a day, roughly 10% of them trucks, projected to reach 3,510 by 2043. The structure is 83 ft (25.3 m) long and 28 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| 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 IRR BIA RTE 167 over Cahto Creek built?
It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2008.
What condition is IRR BIA RTE 167 over Cahto 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 October 2023.
How much traffic does IRR BIA RTE 167 over Cahto Creek carry?
About 3,000 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is IRR BIA RTE 167 over Cahto Creek?
The structure is 83 ft (25.3 m) long with a longest span of 62 ft (18.8 m) and a deck 28 ft wide.
Who owns IRR BIA RTE 167 over Cahto Creek?
It is owned by the Bureau of Indian Affairs.