Collier Road over State Route 99
FairSan Joaquin County, California · 10-SJ-099-36.67 · Structure no. 29 0137
- Built
- 1955
- 70 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 190 ft
- 4 main spans
- Daily traffic
- 1,400
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Collier Road over State Route 99 is a steel stringer/multi-beam or girder carrying Collier Road over State Route 99 in San Joaquin County, California. It was built in 1955, so it is 70 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 6 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 1,400 vehicles a day, roughly 10% of them trucks, projected to reach 1,616 by 2042. The structure is 190 ft (57.9 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Collier Road over State Route 99 built?
It was built in 1955, making it 70 years old in 2025.
What condition is Collier Road over State Route 99 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 July 2024.
How much traffic does Collier Road over State Route 99 carry?
About 1,400 vehicles per day (2014 count), of which roughly 10% are trucks.
How long is Collier Road over State Route 99?
The structure is 190 ft (57.9 m) long with a longest span of 62 ft (18.9 m) and a deck 34 ft wide.
Who owns Collier Road over State Route 99?
It is owned by the State Highway Agency.