Maxwell Road over Colusa Trough
GoodColusa County, California · 2.4 MI E Four MI RD · Structure no. 15C0012
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected July 2023
- Type
- Slab
- Concrete Continuous
- Length
- 595 ft
- 19 main spans
- Daily traffic
- 2,282
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Maxwell Road over Colusa Trough is a concrete continuous slab carrying Maxwell Road over Colusa Trough in Colusa County, California. It was built in 1972, so it is 53 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 2,282 vehicles a day, roughly 5% of them trucks, projected to reach 2,454 by 2041. The structure is 595 ft (181.3 m) long and 33 ft wide. If it were closed, the detour would be 13 mi (21 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 Maxwell Road over Colusa Trough built?
It was built in 1972, making it 53 years old in 2025.
What condition is Maxwell Road 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 July 2023.
How much traffic does Maxwell Road over Colusa Trough carry?
About 2,282 vehicles per day (2014 count), of which roughly 5% are trucks.
How long is Maxwell Road over Colusa Trough?
The structure is 595 ft (181.3 m) long with a longest span of 32 ft (9.8 m) and a deck 33 ft wide.
Who owns Maxwell Road over Colusa Trough?
It is owned by the County Highway Agency.