Interstate 5 over Chestnut Ave
FairSan Diego County, California · 11-SD-005-R49.73-CBD · Structure no. 57 0275
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 117 ft
- 1 main span
- Daily traffic
- 196,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 over Chestnut Ave is a prestressed concrete box beam or girders - multiple carrying Interstate 5 over Chestnut Ave in San Diego County, California. It was built in 1971, so it is 54 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 196,000 vehicles a day, roughly 6% of them trucks, projected to reach 262,795 by 2042. The structure is 117 ft (35.7 m) long and 157 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 5 over Chestnut Ave built?
It was built in 1971, making it 54 years old in 2025.
What condition is Interstate 5 over Chestnut 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 March 2024.
How much traffic does Interstate 5 over Chestnut Ave carry?
About 196,000 vehicles per day (2021 count), of which roughly 6% are trucks.
How long is Interstate 5 over Chestnut Ave?
The structure is 117 ft (35.7 m) long with a longest span of 115 ft (35.1 m) and a deck 157 ft wide.
Who owns Interstate 5 over Chestnut Ave?
It is owned by the State Highway Agency.