Hirschdale RD over Truckee River
PoorNevada County, California · At Hinton · Structure no. 17C0045
- Built
- 1926
- 99 years old
- Condition
- Poor
- inspected August 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 251 ft
- 5 main spans
- Daily traffic
- 70
- 2016 count
- Owner
- County
- County Highway Agency
About this bridge
Hirschdale RD over Truckee River is a concrete continuous tee beam carrying Hirschdale RD over Truckee River in Nevada County, California. It was built in 1926, so it is 99 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.
It carries about 70 vehicles a day, roughly 5% of them trucks, projected to reach 89 by 2044. The structure is 251 ft (76.4 m) long and 25 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hirschdale RD over Truckee River built?
It was built in 1926, making it 99 years old in 2025.
What condition is Hirschdale RD over Truckee 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 August 2024.
How much traffic does Hirschdale RD over Truckee River carry?
About 70 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is Hirschdale RD over Truckee River?
The structure is 251 ft (76.4 m) long with a longest span of 60 ft (18.3 m) and a deck 25 ft wide.
Who owns Hirschdale RD over Truckee River?
It is owned by the County Highway Agency.