N4 over Little Blue River
Nuckolls County, Nebraska · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N4 over Little Blue River in Nuckolls County, Nebraska, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1991, making it 34 years old at the 2025 inventory.
- It carries about 425 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 150 of the 255 inventoried bridges in Nuckolls County rated fair (58.8%); 19 (7.5%) 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 July 2021, on a 48-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (40.308, -98.04)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 356 ft |
| Location | 12W Davenport |
| NBI structure number | S004 08599 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2021 |
| 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 Nuckolls County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| N14 over Ox Bow Creek | 1937 | 1,625 | Poor |
| N14 over Walnut Creek | 1937 | 1,585 | Poor |
| N14 over Little Blue River | 1980 | 1,585 | Fair |
| N14 over Buffalo Creek | 1937 | 1,585 | Fair |
| N14 over Elk Creek | 1975 | 1,480 | Fair |
| 8TH St/fas 1990 over Lost Creek | 2014 | 1,435 | Fair |
All bridges nearby: Nuckolls County, NE bridge conditions · every bridge in Nuckolls County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.