Lerdo Highway over Interstate 5
PoorKern County, California · 06-KER-005-62.60 · Structure no. 50 0310
- Built
- 1967
- 58 years old
- Condition
- Poor
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 284 ft
- 2 main spans
- Daily traffic
- 3,000
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Lerdo Highway over Interstate 5 is a prestressed concrete continuous box beam or girders - multiple carrying Lerdo Highway over Interstate 5 in Kern 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 3,000 vehicles a day, roughly 20% of them trucks, projected to reach 3,500 by 2042. The structure is 284 ft (86.6 m) long and 34 ft wide. If it were closed, the detour would be 14.9 mi (24 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, 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 Lerdo Highway over Interstate 5 built?
It was built in 1967, making it 58 years old in 2025.
What condition is Lerdo Highway over Interstate 5 in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.
How much traffic does Lerdo Highway over Interstate 5 carry?
About 3,000 vehicles per day (2018 count), of which roughly 20% are trucks.
How long is Lerdo Highway over Interstate 5?
The structure is 284 ft (86.6 m) long with a longest span of 142 ft (43.3 m) and a deck 34 ft wide.
Who owns Lerdo Highway over Interstate 5?
It is owned by the State Highway Agency.