State Route 89 over Donner Creek
FairNevada County, California · 03-NEV-089-0.39 · Structure no. 17 0015L
- Built
- 1959
- 66 years old
- Condition
- Fair
- inspected August 2022
- Type
- Tee Beam
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 9,200
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 89 over Donner Creek is a concrete tee beam carrying State Route 89 over Donner Creek in Nevada County, California. It was built in 1959, so it is 66 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 9,200 vehicles a day, roughly 5% of them trucks, projected to reach 17,172 by 2041. The structure is 27 ft (8.2 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 89 over Donner Creek built?
It was built in 1959, making it 66 years old in 2025.
What condition is State Route 89 over Donner Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2022.
How much traffic does State Route 89 over Donner Creek carry?
About 9,200 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is State Route 89 over Donner Creek?
The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 40 ft wide.
Who owns State Route 89 over Donner Creek?
It is owned by the State Highway Agency.