N71 over Niobrara River
Box Butte County, Nebraska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N71 over Niobrara River in Box Butte County, Nebraska, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2005, making it 20 years old at the 2025 inventory.
- It carries about 770 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 28 of the 30 inventoried bridges in Box Butte County rated good (93.3%); 0 (0.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated May 2024, on a 48-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (42.4278, -103.3084)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete tee beam |
| Length | about 110 ft |
| Location | Sjct N2/n71 7.3N |
| NBI structure number | S071 11727 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nebraska department of transportation.
Busiest bridges in Box Butte County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US385 over Snake Creek | 1957 | 3,885 | Good |
| W 10TH Street over BNSF RR | 2009 | 3,305 | Good |
| N2 over BNSF RR 064-765-c | 1991 | 3,180 | Good |
| US385 over Stream | 1944 | 2,980 | Good |
| US385 over Dry Creek | 1940 | 1,660 | Good |
| US385 over Dry Creek Trib | 1940 | 1,660 | Good |
All bridges nearby: Box Butte County, NE bridge conditions · every bridge in Box Butte County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.