State Route 186 over Interstate 8
GoodImperial County, California · 11-IMP-186-2.05 · Structure no. 58 0305
- Built
- 1973
- 52 years old
- Condition
- Good
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 227 ft
- 2 main spans
- Daily traffic
- 13,200
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 186 over Interstate 8 is a concrete continuous box beam or girders - multiple carrying State Route 186 over Interstate 8 in Imperial County, California. It was built in 1973, so it is 52 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 13,200 vehicles a day, roughly 7% of them trucks, projected to reach 15,767 by 2044. The structure is 227 ft (69.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 State Route 186 over Interstate 8 built?
It was built in 1973, making it 52 years old in 2025.
What condition is State Route 186 over Interstate 8 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.
How much traffic does State Route 186 over Interstate 8 carry?
About 13,200 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is State Route 186 over Interstate 8?
The structure is 227 ft (69.2 m) long with a longest span of 113 ft (34.4 m) and a deck 43 ft wide.
Who owns State Route 186 over Interstate 8?
It is owned by the State Highway Agency.