LA Grande RD over Glenn-Colusa Canal
FairColusa County, California · 0.3 MI West Danley RD · Structure no. 15C0181
- Built
- 1940
- 85 years old
- Condition
- Fair
- inspected December 2024
- Type
- Slab
- Concrete Continuous
- Length
- 23 ft
- 2 main spans
- Daily traffic
- 42
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
LA Grande RD over Glenn-Colusa Canal is a concrete continuous slab carrying LA Grande RD over Glenn-Colusa Canal in Colusa County, California. It was built in 1940, so it is 85 years old, older 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 5 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 42 vehicles a day, roughly 1% of them trucks, projected to reach 137 by 2044. The structure is 23 ft (7 m) long and 21 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 LA Grande RD over Glenn-Colusa Canal built?
It was built in 1940, making it 85 years old in 2025.
What condition is LA Grande RD over Glenn-Colusa Canal 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 December 2024.
How much traffic does LA Grande RD over Glenn-Colusa Canal carry?
About 42 vehicles per day (2015 count), of which roughly 1% are trucks.
How long is LA Grande RD over Glenn-Colusa Canal?
The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 21 ft wide.
Who owns LA Grande RD over Glenn-Colusa Canal?
It is owned by the County Highway Agency.