Fourth Street over US Highway 101
GoodSan Luis Obispo County, California · 05-SLO-101-15.58 · Structure no. 49 0235
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected January 2022
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 179 ft
- 2 main spans
- Daily traffic
- 3,800
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
Fourth Street over US Highway 101 is a concrete continuous box beam or girders - multiple carrying Fourth Street over US Highway 101 in San Luis Obispo County, California. It was built in 1998, so it is 27 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 3,800 vehicles a day, roughly 8% of them trucks, projected to reach 6,340 by 2044. The structure is 179 ft (54.7 m) long and 97 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Fourth Street over US Highway 101 built?
It was built in 1998, making it 27 years old in 2025.
What condition is Fourth Street over US Highway 101 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 January 2022.
How much traffic does Fourth Street over US Highway 101 carry?
About 3,800 vehicles per day (2010 count), of which roughly 8% are trucks.
How long is Fourth Street over US Highway 101?
The structure is 179 ft (54.7 m) long with a longest span of 89 ft (27 m) and a deck 97 ft wide.
Who owns Fourth Street over US Highway 101?
It is owned by the State Highway Agency.