Chowchilla Road over Big Creek
PoorPosted for loadMariposa County, California · Approx. 2.5 Miles SW of W · Structure no. 8800016S0000000
- Built
- 1940
- 85 years old
- Condition
- Poor
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 41 ft
- 1 main span
- Daily traffic
- 20
- 2019 count
- Owner
- Federal
- National Park Service
About this bridge
Chowchilla Road over Big Creek is a steel stringer/multi-beam or girder carrying Chowchilla Road over Big Creek in Mariposa County, California. It was built in 1940, so it is 85 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. Its operating status is: posted for load restriction.
It carries about 20 vehicles a day, roughly 1% of them trucks, projected to reach 30 by 2039. The structure is 41 ft (12.5 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 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 Chowchilla Road over Big Creek built?
It was built in 1940, making it 85 years old in 2025.
What condition is Chowchilla Road over Big Creek 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 September 2024.
How much traffic does Chowchilla Road over Big Creek carry?
About 20 vehicles per day (2019 count), of which roughly 1% are trucks.
How long is Chowchilla Road over Big Creek?
The structure is 41 ft (12.5 m) long with a longest span of 37 ft (11.3 m) and a deck 16 ft wide.
Who owns Chowchilla Road over Big Creek?
It is owned by the National Park Service.