N71 over Niobrara River
GoodBox Butte County, Nebraska · Sjct N2/N71 7.3N · Structure no. S071 11727
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected May 2024
- Type
- Tee Beam
- Prestressed Concrete Continuous
- Length
- 111 ft
- 3 main spans
- Daily traffic
- 770
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
N71 over Niobrara River is a prestressed concrete continuous tee beam carrying N71 over Niobrara River in Box Butte County, Nebraska. It was built in 2005, so it is 20 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 770 vehicles a day, roughly 14% of them trucks, projected to reach 1,155 by 2038. The structure is 111 ft (33.8 m) long and 38 ft wide. If it were closed, the detour would be 348 mi (560 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 | 8 Very Good | No problems noted. |
| 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 N71 over Niobrara River built?
It was built in 2005, making it 20 years old in 2025.
What condition is N71 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 N71 over Niobrara River carry?
About 770 vehicles per day (2018 count), of which roughly 14% are trucks.
How long is N71 over Niobrara River?
The structure is 111 ft (33.8 m) long with a longest span of 44 ft (13.4 m) and a deck 38 ft wide.
Who owns N71 over Niobrara River?
It is owned by the State Highway Agency.