US20 over Yankton Slough
Pierce County, Nebraska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US20 over Yankton Slough in Pierce County, Nebraska, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1955 and reconstructed in 1990, making it 70 years old at the 2025 inventory.
- It carries about 2,635 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 69 of the 177 inventoried bridges in Pierce County rated good (39.0%); 21 (11.9%) are rated poor.
- 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 → (42.3661, -97.4229)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 81 ft |
| Location | 3W Randolph |
| NBI structure number | S020 37412 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nebraska department of transportation.
Busiest bridges in Pierce County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US81 over Stream | 2003 | 8,565 | Good |
| US81 over Stream | 1938 | 8,565 | Fair |
| N13 over Pleasant Valley Drain | 1975 | 4,825 | Good |
| N13 over Stream | 1975 | 4,825 | Good |
| N13 over Willow Creek | 2004 | 4,825 | Good |
| US81 over Stream | 1938 | 4,615 | Good |
All bridges nearby: Pierce County, NE bridge conditions · every bridge in Pierce County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.