Henness Road over Drainage Ditch (east)
GoodNevada County, California · West of Prosser Dam Road · Structure no. 17C0103
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected August 2022
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 40 ft
- 1 main span
- Daily traffic
- 1,000
- 2013 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Henness Road over Drainage Ditch (east) is a steel stringer/multi-beam or girder carrying Henness Road over Drainage Ditch (east) in Nevada County, California. It was built in 2006, so it is 19 years old, younger 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 1,000 vehicles a day, roughly 1% of them trucks, projected to reach 1,224 by 2042. The structure is 40 ft (12.3 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Henness Road over Drainage Ditch (east) built?
It was built in 2006, making it 19 years old in 2025.
What condition is Henness Road over Drainage Ditch (east) 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 2022.
How much traffic does Henness Road over Drainage Ditch (east) carry?
About 1,000 vehicles per day (2013 count), of which roughly 1% are trucks.
How long is Henness Road over Drainage Ditch (east)?
The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.5 m) and a deck 36 ft wide.
Who owns Henness Road over Drainage Ditch (east)?
It is owned by the Town or Township Highway Agency.