4th Street over Palo Verde Lagoon
FairImperial County, California · 300 Ft E/O SR 78 · Structure no. 58C0192
- Built
- 1950
- 75 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 118 ft
- 7 main spans
- Daily traffic
- 800
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
4th Street over Palo Verde Lagoon is a wood or timber stringer/multi-beam or girder carrying 4th Street over Palo Verde Lagoon in Imperial County, California. It was built in 1950, so it is 75 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 800 vehicles a day, roughly 3% of them trucks, projected to reach 872 by 2045. The structure is 118 ft (36 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 4th Street over Palo Verde Lagoon built?
It was built in 1950, making it 75 years old in 2025.
What condition is 4th Street over Palo Verde Lagoon 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 October 2023.
How much traffic does 4th Street over Palo Verde Lagoon carry?
About 800 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is 4th Street over Palo Verde Lagoon?
The structure is 118 ft (36 m) long with a longest span of 21 ft (6.4 m) and a deck 35 ft wide.
Who owns 4th Street over Palo Verde Lagoon?
It is owned by the County Highway Agency.