Patterson Pass RD over Route 580
FairSan Joaquin County, California · 10-SJ-580-13.54 · Structure no. 29 0024
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 239 ft
- 4 main spans
- Daily traffic
- 870
- 1998 count
- Owner
- State
- State Highway Agency
About this bridge
Patterson Pass RD over Route 580 is a concrete continuous box beam or girders - multiple carrying Patterson Pass RD over Route 580 in San Joaquin County, California. It was built in 1967, so it is 58 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 870 vehicles a day, roughly 15% of them trucks, projected to reach 3,336 by 2042. The structure is 239 ft (72.8 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Patterson Pass RD over Route 580 built?
It was built in 1967, making it 58 years old in 2025.
What condition is Patterson Pass RD over Route 580 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 March 2024.
How much traffic does Patterson Pass RD over Route 580 carry?
About 870 vehicles per day (1998 count), of which roughly 15% are trucks.
How long is Patterson Pass RD over Route 580?
The structure is 239 ft (72.8 m) long with a longest span of 81 ft (24.7 m) and a deck 34 ft wide.
Who owns Patterson Pass RD over Route 580?
It is owned by the State Highway Agency.