Interstate 5 NB over Alpine Ave
FairSan Joaquin County, California · 10-SJ-005-28.97 · Structure no. 29 0191
- Built
- 1970
- 55 years old, rebuilt 2017
- Condition
- Fair
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 117 ft
- 1 main span
- Daily traffic
- 124,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 NB over Alpine Ave is a prestressed concrete box beam or girders - multiple carrying Interstate 5 NB over Alpine Ave in San Joaquin County, California. It was built in 1970 and reconstructed in 2017, so it is 55 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 124,000 vehicles a day, roughly 23% of them trucks, projected to reach 205,976 by 2045. The structure is 117 ft (35.7 m) long and 154 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Interstate 5 NB over Alpine Ave built?
It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2017.
What condition is Interstate 5 NB over Alpine Ave 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 January 2025.
How much traffic does Interstate 5 NB over Alpine Ave carry?
About 124,000 vehicles per day (2009 count), of which roughly 23% are trucks.
How long is Interstate 5 NB over Alpine Ave?
The structure is 117 ft (35.7 m) long with a longest span of 115 ft (35 m) and a deck 154 ft wide.
Who owns Interstate 5 NB over Alpine Ave?
It is owned by the State Highway Agency.