Auburn-Forsthillrd over N Fk American River
PoorPlacer County, California · East of I-80 · Structure no. 19C0060
- Built
- 1973
- 52 years old, rebuilt 2014
- Condition
- Poor
- inspected May 2024
- Type
- Truss - Deck
- Steel Continuous
- Length
- 2,429 ft
- 3 main spans
- Daily traffic
- 7,318
- 2008 count
- Owner
- County
- County Highway Agency
About this bridge
Auburn-Forsthillrd over N Fk American River is a steel continuous truss - deck carrying Auburn-Forsthillrd over N Fk American River in Placer County, California. It was built in 1973 and reconstructed in 2014, 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 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.
It carries about 7,318 vehicles a day, roughly 3% of them trucks, projected to reach 7,515 by 2042. The structure is 2,429 ft (740.4 m) long and 75 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Auburn-Forsthillrd over N Fk American River built?
It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2014.
What condition is Auburn-Forsthillrd over N 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 May 2024.
How much traffic does Auburn-Forsthillrd over N Fk American River carry?
About 7,318 vehicles per day (2008 count), of which roughly 3% are trucks.
How long is Auburn-Forsthillrd over N Fk American River?
The structure is 2,429 ft (740.4 m) long with a longest span of 862 ft (262.7 m) and a deck 75 ft wide.
Who owns Auburn-Forsthillrd over N Fk American River?
It is owned by the County Highway Agency.