I 580N over College Pw
Carson City, Nevada · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I 580N over College Pw in Carson City, Nevada, 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 2001, making it 24 years old at the 2025 inventory.
- It carries about 19,500 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 27 of the 31 inventoried bridges in Carson City rated good (87.1%); 0 (0.0%) 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 April 2021, on a 48-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 → (39.19005, -119.75394)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete single box beam |
| Length | about 356 ft |
| Location | Carson City |
| NBI structure number | I2296N |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2021 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nevada department of transportation.
Busiest bridges in Carson City
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 580N over Rmp Carson St to 580N | 2006 | 22,000 | Good |
| I 580S over Rmp Carson St to 580N | 2006 | 22,000 | Good |
| US 395 over Kings Canyon Channel | 2009 | 20,750 | Good |
| US 395 over Kings Canyon Channel | 2009 | 20,750 | Good |
| I 580N over US 50 | 2005 | 20,500 | Good |
| I 580S over US 50 | 2005 | 20,500 | Good |
All bridges nearby: Carson City, NV bridge conditions · every bridge in Carson City · Nevada bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.