Whealan Road over Duck Slough Creek
GoodMerced County, California · 0.75 MI N Mariposa Way · Structure no. 39C0174
- Built
- 1973
- 52 years old
- Condition
- Good
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 80 ft
- 3 main spans
- Daily traffic
- 184
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
Whealan Road over Duck Slough Creek is a concrete continuous slab carrying Whealan Road over Duck Slough Creek in Merced County, California. It was built in 1973, so it is 52 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 184 vehicles a day, roughly 20% of them trucks, projected to reach 527 by 2042. The structure is 80 ft (24.4 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Whealan Road over Duck Slough Creek built?
It was built in 1973, making it 52 years old in 2025.
What condition is Whealan Road over Duck Slough Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.
How much traffic does Whealan Road over Duck Slough Creek carry?
About 184 vehicles per day (2018 count), of which roughly 20% are trucks.
How long is Whealan Road over Duck Slough Creek?
The structure is 80 ft (24.4 m) long with a longest span of 26 ft (7.9 m) and a deck 29 ft wide.
Who owns Whealan Road over Duck Slough Creek?
It is owned by the County Highway Agency.