South Shore DR over Summit Creek
GoodNevada County, California · At Donner Lake · Structure no. 17C0079
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 78 ft
- 2 main spans
- Daily traffic
- 2,100
- 2009 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
South Shore DR over Summit Creek is a concrete continuous slab carrying South Shore DR over Summit Creek in Nevada County, California. It was built in 1970, so it is 55 years old, older 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 2,100 vehicles a day, roughly 10% of them trucks, projected to reach 1,744 by 2042. The structure is 78 ft (23.9 m) long and 37 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was South Shore DR over Summit Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is South Shore DR over Summit 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 August 2024.
How much traffic does South Shore DR over Summit Creek carry?
About 2,100 vehicles per day (2009 count), of which roughly 10% are trucks.
How long is South Shore DR over Summit Creek?
The structure is 78 ft (23.9 m) long with a longest span of 38 ft (11.6 m) and a deck 37 ft wide.
Who owns South Shore DR over Summit Creek?
It is owned by the Town or Township Highway Agency.