N66 over I80
Cass County, Nebraska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N66 over I80 in Cass 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 1990, making it 35 years old at the 2025 inventory.
- It carries about 3,250 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 121 of the 273 inventoried bridges in Cass County rated good (44.3%); 34 (12.5%) 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 → (41.0119, -96.3076)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 291 ft |
| Location | Mahoney Park Interchg |
| NBI structure number | S080 42626 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nebraska department of transportation.
Busiest bridges in Cass County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I80 over Stream | 1961 | 51,220 | Fair |
| I80 over BNSF RR 073-008-f | 2006 | 51,220 | Good |
| I80 over BNSF RR 073-009-m | 2007 | 51,220 | Good |
| I80 over Platte River | 2006 | 51,220 | Good |
| I80 over Platte River | 2005 | 51,220 | Good |
| I80 over Dee Creek | 2009 | 49,240 | Good |
All bridges nearby: Cass County, NE bridge conditions · every bridge in Cass County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.