State Route 23 over Grimes Canyon Channel
FairVentura County, California · 07-VEN-023-R21.41 · Structure no. 52 0425
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected June 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 58 ft
- 3 main spans
- Daily traffic
- 7,650
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 23 over Grimes Canyon Channel is a concrete continuous culvert carrying State Route 23 over Grimes Canyon Channel in Ventura County, California. It was built in 1991, so it is 34 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 7,650 vehicles a day, projected to reach 10,835 by 2041. The structure is 58 ft (17.6 m) long and 93 ft wide. If it were closed, the detour would be 39.8 mi (64 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 |
|---|---|---|
| Channel and channel protection | 9 Excellent | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 23 over Grimes Canyon Channel built?
It was built in 1991, making it 34 years old in 2025.
What condition is State Route 23 over Grimes Canyon Channel 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 June 2023.
How much traffic does State Route 23 over Grimes Canyon Channel carry?
About 7,650 vehicles per day (2015 count).
How long is State Route 23 over Grimes Canyon Channel?
The structure is 58 ft (17.6 m) long with a longest span of 19 ft (5.8 m) and a deck 93 ft wide.
Who owns State Route 23 over Grimes Canyon Channel?
It is owned by the State Highway Agency.