State Route 49 over Delong Creek
FairMariposa County, California · 10-MPA-049-6.18 · Structure no. 40 0028
- Built
- 1948
- 77 years old, rebuilt 1960
- Condition
- Fair
- inspected July 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 69 ft
- 2 main spans
- Daily traffic
- 3,725
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 49 over Delong Creek is a concrete continuous culvert carrying State Route 49 over Delong Creek in Mariposa County, California. It was built in 1948 and reconstructed in 1960, so it is 77 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 3,725 vehicles a day, roughly 4% of them trucks, projected to reach 4,730 by 2042. The structure is 69 ft (21 m) long. If it were closed, the detour would be 8.1 mi (13 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 49 over Delong Creek built?
It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1960.
What condition is State Route 49 over Delong Creek 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 July 2024.
How much traffic does State Route 49 over Delong Creek carry?
About 3,725 vehicles per day (2009 count), of which roughly 4% are trucks.
How long is State Route 49 over Delong Creek?
The structure is 69 ft (21 m) long with a longest span of 10 ft (3 m).
Who owns State Route 49 over Delong Creek?
It is owned by the State Highway Agency.