Interstate 8 WB over Mc Cain Valley RD
FairSan Diego County, California · 11-SD-008-R67.82 · Structure no. 57 0589L
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected May 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 114 ft
- 3 main spans
- Daily traffic
- 8,150
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 8 WB over Mc Cain Valley RD is a concrete continuous tee beam carrying Interstate 8 WB over Mc Cain Valley RD in San Diego 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 8,150 vehicles a day, roughly 20% of them trucks, projected to reach 11,448 by 2042. The structure is 114 ft (34.7 m) long and 41 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 8 WB over Mc Cain Valley RD built?
It was built in 1967, making it 58 years old in 2025.
What condition is Interstate 8 WB over Mc Cain Valley RD 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 May 2023.
How much traffic does Interstate 8 WB over Mc Cain Valley RD carry?
About 8,150 vehicles per day (2014 count), of which roughly 20% are trucks.
How long is Interstate 8 WB over Mc Cain Valley RD?
The structure is 114 ft (34.7 m) long with a longest span of 46 ft (14 m) and a deck 41 ft wide.
Who owns Interstate 8 WB over Mc Cain Valley RD?
It is owned by the State Highway Agency.