Mosquito RD over South Fk American River
PoorPosted for loadEl Dorado County, California · 5.7 MI North of US 50 · Structure no. 25C0061
- Built
- 1939
- 86 years old
- Condition
- Poor
- inspected June 2024
- Type
- Suspension
- Steel
- Length
- 245 ft
- 1 main span
- Daily traffic
- 1,055
- 2012 count
- Owner
- County
- County Highway Agency
About this bridge
Mosquito RD over South Fk American River is a steel suspension carrying Mosquito RD over South Fk American River in El Dorado County, California. It was built in 1939, so it is 86 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 1,055 vehicles a day, roughly 2% of them trucks, projected to reach 2,624 by 2046. The structure is 245 ft (74.7 m) long and 10 ft wide. If it were closed, the detour would be 16.8 mi (27 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mosquito RD over South Fk American River built?
It was built in 1939, making it 86 years old in 2025.
What condition is Mosquito RD over South Fk American River 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 June 2024.
How much traffic does Mosquito RD over South Fk American River carry?
About 1,055 vehicles per day (2012 count), of which roughly 2% are trucks.
How long is Mosquito RD over South Fk American River?
The structure is 245 ft (74.7 m) long with a longest span of 201 ft (61.3 m) and a deck 10 ft wide.
Who owns Mosquito RD over South Fk American River?
It is owned by the County Highway Agency.