Ia 60 NB over Drainage
Osceola County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ia 60 NB over Drainage in Osceola County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 2004, making it 21 years old at the 2025 inventory.
- It carries about 5,100 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 67 of the 184 inventoried bridges in Osceola County rated good (36.4%); 12 (6.5%) 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 January 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 → (43.29042, -95.79661)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 38 ft |
| Location | 1.1 mi. S of SR L36 |
| NBI structure number | 000000000609225 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Osceola County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ia 60 over Drainage | 2004 | 5,400 | Good |
| Ia 60 NB over Wagner Creek | 2003 | 5,400 | Good |
| Ia 60 SB over Drainage Ditch | 1935 | 5,100 | Fair |
| Ia 60 NB over Otter Creek | 2004 | 2,700 | Good |
| Ia 60 SB over Otter Creek | 2003 | 2,700 | Good |
| Ia 9 over Dry Run Creek | 1978 | 2,680 | Good |
All bridges nearby: Osceola County, IA bridge conditions · every bridge in Osceola County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.