Interstate 8 over Mtdb Lrt Sdiv & Marshall
FairSan Diego County, California · 11-SD-008-14.95-ECJ · Structure no. 57 0369
- Built
- 1961
- 64 years old, rebuilt 1985
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 287 ft
- 4 main spans
- Daily traffic
- 189,000
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 8 over Mtdb Lrt Sdiv & Marshall is a concrete continuous box beam or girders - multiple carrying Interstate 8 over Mtdb Lrt Sdiv & Marshall in San Diego County, California. It was built in 1961 and reconstructed in 1985, so it is 64 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 189,000 vehicles a day, roughly 5% of them trucks, projected to reach 241,189 by 2044. The structure is 287 ft (87.5 m) long and 164 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 over Mtdb Lrt Sdiv & Marshall built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1985.
What condition is Interstate 8 over Mtdb Lrt Sdiv & Marshall 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 Interstate 8 over Mtdb Lrt Sdiv & Marshall carry?
About 189,000 vehicles per day (2014 count), of which roughly 5% are trucks.
How long is Interstate 8 over Mtdb Lrt Sdiv & Marshall?
The structure is 287 ft (87.5 m) long with a longest span of 75 ft (22.9 m) and a deck 164 ft wide.
Who owns Interstate 8 over Mtdb Lrt Sdiv & Marshall?
It is owned by the State Highway Agency.