N7 over Calamus River
Brown County, Nebraska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N7 over Calamus River in Brown County, Nebraska, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1991, making it 34 years old at the 2025 inventory.
- It carries about 525 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 26 of the 56 inventoried bridges in Brown County rated good (46.4%); 3 (5.4%) are rated poor.
- 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 → (42.1821, -99.8715)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 9 | Excellent condition |
| Superstructure | 7 | Good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 92 ft |
| Location | 26S Ainsworth |
| NBI structure number | S007 01774 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nebraska department of transportation.
Busiest bridges in Brown County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US20 over Long Pine Creek | 1983 | 2,425 | Good |
| US20 over Sand Draw Creek | 1978 | 1,645 | Good |
| US20 over Stream | 1932 | 1,645 | Good |
| US20 over Stream | 1932 | 1,645 | Good |
| US20 over Plum Creek | 1989 | 1,335 | Good |
| US183 over Stream | 1954 | 510 | Good |
All bridges nearby: Brown County, NE bridge conditions · every bridge in Brown County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.