Grimes-Arbuckle RD over Colusa Trough
GoodColusa County, California · 4 MI E of Old RTE 99W · Structure no. 15C0009
- Built
- 1971
- 54 years old
- Condition
- Good
- inspected November 2022
- Type
- Slab
- Concrete Continuous
- Length
- 402 ft
- 13 main spans
- Daily traffic
- 1,673
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Grimes-Arbuckle RD over Colusa Trough is a concrete continuous slab carrying Grimes-Arbuckle RD over Colusa Trough in Colusa County, California. It was built in 1971, so it is 54 years old, younger than the California average of 54.8 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 1,673 vehicles a day, roughly 10% of them trucks, projected to reach 2,635 by 2040. The structure is 402 ft (122.5 m) long and 33 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Grimes-Arbuckle RD over Colusa Trough built?
It was built in 1971, making it 54 years old in 2025.
What condition is Grimes-Arbuckle RD over Colusa Trough 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 November 2022.
How much traffic does Grimes-Arbuckle RD over Colusa Trough carry?
About 1,673 vehicles per day (2014 count), of which roughly 10% are trucks.
How long is Grimes-Arbuckle RD over Colusa Trough?
The structure is 402 ft (122.5 m) long with a longest span of 32 ft (9.8 m) and a deck 33 ft wide.
Who owns Grimes-Arbuckle RD over Colusa Trough?
It is owned by the County Highway Agency.