Mt Vernon Ave over State Route 178
FairKern County, California · 06-KER-178-R4.59-BKD · Structure no. 50 0333
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected November 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 198 ft
- 2 main spans
- Daily traffic
- 28,261
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Mt Vernon Ave over State Route 178 is a concrete continuous box beam or girders - multiple carrying Mt Vernon Ave over State Route 178 in Kern County, California. It was built in 1970, so it is 55 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 28,261 vehicles a day, roughly 5% of them trucks, projected to reach 35,825 by 2044. The structure is 198 ft (60.4 m) long and 104 ft wide. If it were closed, the detour would be 1.9 mi (3 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 Mt Vernon Ave over State Route 178 built?
It was built in 1970, making it 55 years old in 2025.
What condition is Mt Vernon Ave over State Route 178 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 November 2024.
How much traffic does Mt Vernon Ave over State Route 178 carry?
About 28,261 vehicles per day (2014 count), of which roughly 5% are trucks.
How long is Mt Vernon Ave over State Route 178?
The structure is 198 ft (60.4 m) long with a longest span of 100 ft (30.5 m) and a deck 104 ft wide.
Who owns Mt Vernon Ave over State Route 178?
It is owned by the State Highway Agency.