US Highway 101 NB over Traffic Way
PoorSan Luis Obispo County, California · 05-SLO-101-45.96-ATAS · Structure no. 49 0152R
- Built
- 1956
- 69 years old, rebuilt 2012
- Condition
- Poor
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 131 ft
- 1 main span
- Daily traffic
- 30,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 101 NB over Traffic Way is a steel stringer/multi-beam or girder carrying US Highway 101 NB over Traffic Way in San Luis Obispo County, California. It was built in 1956 and reconstructed in 2012, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 30,000 vehicles a day, projected to reach 39,089 by 2043. The structure is 131 ft (40 m) long and 41 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US Highway 101 NB over Traffic Way built?
It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2012.
What condition is US Highway 101 NB over Traffic Way in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.
How much traffic does US Highway 101 NB over Traffic Way carry?
About 30,000 vehicles per day (2009 count).
How long is US Highway 101 NB over Traffic Way?
The structure is 131 ft (40 m) long with a longest span of 62 ft (18.9 m) and a deck 41 ft wide.
Who owns US Highway 101 NB over Traffic Way?
It is owned by the State Highway Agency.