County Highway over N Br Big Blue River
Polk County, Nebraska · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Highway over N Br Big Blue River in Polk County, Nebraska, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1950, making it 75 years old at the 2025 inventory.
- It carries about 30 vehicles a day (traffic count year 2003).
- Its listed owner is the county highway agency.
- It is one of 10 of the 93 inventoried bridges in Polk County rated poor (10.8%); 10 (10.8%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (41.0617, -97.6917)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 49 ft |
| Location | 4.5E 1S of Polk |
| NBI structure number | C007204605 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nebraska department of transportation.
Busiest bridges in Polk County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US81/N92 over Davis Creek | 2022 | 3,970 | Good |
| US81/N92 over Davis Creek | 2005 | 3,970 | Good |
| US81 over N Br Big Blue River | 1985 | 3,950 | Fair |
| US81 over Prairie Creek | 1985 | 3,950 | Good |
| US81 over Davis Creek | 1985 | 3,385 | Good |
| N92 over Platte River Trib | 1939 | 1,360 | Fair |
All bridges nearby: Polk County, NE bridge conditions · every bridge in Polk County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.