Ave 23 1/2 over Ash Slough
GoodMadera County, California · 0.7 MI East of RD 10 · Structure no. 41C0048
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected March 2021
- Type
- Slab
- Concrete Continuous
- Length
- 452 ft
- 15 main spans
- Daily traffic
- 300
- 1985 count
- Owner
- County
- County Highway Agency
About this bridge
Ave 23 1/2 over Ash Slough is a concrete continuous slab carrying Ave 23 1/2 over Ash Slough in Madera County, California. It was built in 1985, so it is 40 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 300 vehicles a day, roughly 10% of them trucks, projected to reach 506 by 2043. The structure is 452 ft (137.8 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 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 Ave 23 1/2 over Ash Slough built?
It was built in 1985, making it 40 years old in 2025.
What condition is Ave 23 1/2 over Ash Slough 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 March 2021.
How much traffic does Ave 23 1/2 over Ash Slough carry?
About 300 vehicles per day (1985 count), of which roughly 10% are trucks.
How long is Ave 23 1/2 over Ash Slough?
The structure is 452 ft (137.8 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.
Who owns Ave 23 1/2 over Ash Slough?
It is owned by the County Highway Agency.