Prospect ST over Porter Slough
GoodTulare County, California · At Morton Ave · Structure no. 46C0168
- Built
- 1955
- 70 years old
- Condition
- Good
- inspected February 2025
- Type
- Slab
- Concrete
- Length
- 42 ft
- 1 main span
- Daily traffic
- 2,500
- 2013 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Prospect ST over Porter Slough is a concrete slab carrying Prospect ST over Porter Slough in Tulare County, California. It was built in 1955, so it is 70 years old, older 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 2,500 vehicles a day, roughly 5% of them trucks, projected to reach 2,790 by 2047. The structure is 42 ft (12.9 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 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 Prospect ST over Porter Slough built?
It was built in 1955, making it 70 years old in 2025.
What condition is Prospect ST over Porter 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 February 2025.
How much traffic does Prospect ST over Porter Slough carry?
About 2,500 vehicles per day (2013 count), of which roughly 5% are trucks.
How long is Prospect ST over Porter Slough?
The structure is 42 ft (12.9 m) long with a longest span of 38 ft (11.6 m) and a deck 38 ft wide.
Who owns Prospect ST over Porter Slough?
It is owned by the City or Municipal Highway Agency.