State Route 99 over Arch Road
FairSan Joaquin County, California · 10-SJ-099-14.61-STKN · Structure no. 29 0316
- Built
- 2006
- 19 years old
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 471 ft
- 3 main spans
- Daily traffic
- 70,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Arch Road is a prestressed concrete continuous box beam or girders - multiple carrying State Route 99 over Arch Road in San Joaquin County, California. It was built in 2006, so it is 19 years old, younger 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 70,500 vehicles a day, roughly 20% of them trucks, projected to reach 93,211 by 2046. The structure is 471 ft (143.6 m) long and 118 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 over Arch Road built?
It was built in 2006, making it 19 years old in 2025.
What condition is State Route 99 over Arch Road 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 June 2024.
How much traffic does State Route 99 over Arch Road carry?
About 70,500 vehicles per day (2009 count), of which roughly 20% are trucks.
How long is State Route 99 over Arch Road?
The structure is 471 ft (143.6 m) long with a longest span of 230 ft (70 m) and a deck 118 ft wide.
Who owns State Route 99 over Arch Road?
It is owned by the State Highway Agency.