N29 over Niobrara River
GoodSioux County, Nebraska · 0N Agate · Structure no. S029 04647
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected May 2024
- Type
- Culvert
- Concrete
- Length
- 34 ft
- 3 main spans
- Daily traffic
- 205
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
N29 over Niobrara River is a concrete culvert carrying N29 over Niobrara River in Sioux County, Nebraska. It was built in 2006, so it is 19 years old, younger than the Nebraska average of 47.1 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 205 vehicles a day, roughly 12% of them trucks, projected to reach 277 by 2038. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 167.8 mi (270 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N29 over Niobrara River built?
It was built in 2006, making it 19 years old in 2025.
What condition is N29 over Niobrara River 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 May 2024.
How much traffic does N29 over Niobrara River carry?
About 205 vehicles per day (2018 count), of which roughly 12% are trucks.
How long is N29 over Niobrara River?
The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m).
Who owns N29 over Niobrara River?
It is owned by the State Highway Agency.