State Route 86 NB over Trifolium/Westside Main
GoodImperial County, California · 11-IMP-086-R24.77 · Structure no. 58 0018R
- Built
- 1962
- 63 years old
- Condition
- Good
- inspected January 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 36 ft
- 1 main span
- Daily traffic
- 5,700
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 86 NB over Trifolium/Westside Main is a prestressed concrete slab carrying State Route 86 NB over Trifolium/Westside Main in Imperial County, California. It was built in 1962, so it is 63 years old, older 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 5,700 vehicles a day, roughly 29% of them trucks, projected to reach 10,442 by 2046. The structure is 36 ft (11 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. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 86 NB over Trifolium/Westside Main built?
It was built in 1962, making it 63 years old in 2025.
What condition is State Route 86 NB over Trifolium/Westside Main 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 2024.
How much traffic does State Route 86 NB over Trifolium/Westside Main carry?
About 5,700 vehicles per day (2018 count), of which roughly 29% are trucks.
How long is State Route 86 NB over Trifolium/Westside Main?
The structure is 36 ft (11 m) long with a longest span of 36 ft (11 m) and a deck 43 ft wide.
Who owns State Route 86 NB over Trifolium/Westside Main?
It is owned by the State Highway Agency.