County Highway over Tri-county Supply Canal
Gosper County, Nebraska · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Highway over Tri-county Supply Canal in Gosper 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 1963, making it 62 years old at the 2025 inventory.
- It carries about 20 vehicles a day (traffic count year 2011).
- It is one of 11 of the 62 inventoried bridges in Gosper County rated poor (17.7%); 11 (17.7%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated October 2023, on a 24-month routine inspection cycle.
- 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 → (40.6927, -99.7189)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 153 ft |
| Location | 8N 1E of Smithfield |
| NBI structure number | C003744110 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | October 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 Gosper County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US283 over Tri-county Supply Canal | 1992 | 2,310 | Good |
| US283 over Plum Creek | 1957 | 1,910 | Good |
| US283 over Elk Creek | 1960 | 1,225 | Good |
| Johnson Lake Dr over Tri-county Supply Canal | 1935 | 1,220 | Poor |
| N23 over Plum Creek | 1959 | 990 | Good |
| R37B Fas 1687 over Tri-county Supply Canal | 1959 | 765 | Fair |
All bridges nearby: Gosper County, NE bridge conditions · every bridge in Gosper County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.