School House Rd over Niobrara River
Sioux County, Nebraska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- School House Rd over Niobrara River in Sioux County, Nebraska, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
- It was built in 2006, making it 19 years old at the 2025 inventory.
- It carries about 35 vehicles a day (traffic count year 1998).
- Its listed owner is the county highway agency.
- It is one of 21 of the 36 inventoried bridges in Sioux County rated good (58.3%); 1 (2.8%) 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 November 2023, 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 → (42.4329, -103.6015)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 9 | 9 | Excellent condition |
| Superstructure | 9 | 9 | Excellent condition |
| Substructure | 9 | 9 | Excellent condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 30 ft |
| Location | 18S 14E of Harrison |
| NBI structure number | C008304705 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nebraska department of transportation.
Busiest bridges in Sioux County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| N71 over Wind Spring Draw | 1982 | 745 | Good |
| US20 over Stream | 1940 | 615 | Good |
| N29 over Stream | 1952 | 265 | Good |
| N29 over Stream | 1952 | 265 | Good |
| N29 over Stream | 1952 | 265 | Good |
| N29 over Interstate Canal | 1973 | 240 | Good |
All bridges nearby: Sioux County, NE bridge conditions · every bridge in Sioux County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.