N50 over N Fk Big Nemaha River
Johnson County, Nebraska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N50 over N Fk Big Nemaha River in Johnson County, Nebraska, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1944 and reconstructed in 1995, making it 81 years old at the 2025 inventory.
- It carries about 1,790 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 84 of the 173 inventoried bridges in Johnson County rated good (48.6%); 41 (23.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (good), but component ratings moved: deck 7 to 8.
- Its most recent inspection on record is dated July 2024, on a 24-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 → (40.3555, -96.1808)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 318 ft |
| Location | 1S Tecumseh |
| NBI structure number | S050 03135 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 24 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 Johnson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| N50 over Coon Creek | 1997 | 2,585 | Good |
| N50 over Little Nemaha Riv S Fk | 1997 | 2,585 | Good |
| US136 over Stream | 1999 | 2,290 | Good |
| N41 over Stream | 2023 | 2,155 | Good |
| N41 over N Fk Big Nemaha River | 2023 | 2,155 | Good |
| N41 over Stream | 1957 | 2,155 | Good |
All bridges nearby: Johnson County, NE bridge conditions · every bridge in Johnson County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.