Main Street over US Highway 101
GoodSan Luis Obispo County, California · 05-SLO-101-52.44 · Structure no. 49 0200
- Built
- 1966
- 59 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 194 ft
- 2 main spans
- Daily traffic
- 6,800
- 2008 count
- Owner
- State
- State Highway Agency
About this bridge
Main Street over US Highway 101 is a prestressed concrete stringer/multi-beam or girder carrying Main Street over US Highway 101 in San Luis Obispo County, California. It was built in 1966, so it is 59 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 6,800 vehicles a day, roughly 5% of them trucks, projected to reach 9,116 by 2041. The structure is 194 ft (59 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 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 Main Street over US Highway 101 built?
It was built in 1966, making it 59 years old in 2025.
What condition is Main 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 October 2023.
How much traffic does Main Street over US Highway 101 carry?
About 6,800 vehicles per day (2008 count), of which roughly 5% are trucks.
How long is Main Street over US Highway 101?
The structure is 194 ft (59 m) long with a longest span of 63 ft (19.1 m) and a deck 37 ft wide.
Who owns Main Street over US Highway 101?
It is owned by the State Highway Agency.