State Route 58 over US HWY 101 (@pm 37.86)
FairSan Luis Obispo County, California · 05-SLO-058-0.03 · Structure no. 49 0158
- Built
- 1956
- 69 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 305 ft
- 4 main spans
- Daily traffic
- 7,200
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 58 over US HWY 101 (@pm 37.86) is a steel stringer/multi-beam or girder carrying State Route 58 over US HWY 101 (@pm 37.86) in San Luis Obispo County, California. It was built in 1956, so it is 69 years old, older 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 5 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 7,200 vehicles a day, roughly 6% of them trucks, projected to reach 11,637 by 2042. The structure is 305 ft (93 m) long and 33 ft wide. If it were closed, the detour would be 42.3 mi (68 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 |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 State Route 58 over US HWY 101 (@pm 37.86) built?
It was built in 1956, making it 69 years old in 2025.
What condition is State Route 58 over US HWY 101 (@pm 37.86) 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 May 2024.
How much traffic does State Route 58 over US HWY 101 (@pm 37.86) carry?
About 7,200 vehicles per day (2009 count), of which roughly 6% are trucks.
How long is State Route 58 over US HWY 101 (@pm 37.86)?
The structure is 305 ft (93 m) long with a longest span of 95 ft (29 m) and a deck 33 ft wide.
Who owns State Route 58 over US HWY 101 (@pm 37.86)?
It is owned by the State Highway Agency.