US 75 over W Fork Floyd River
Sioux County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 75 over W Fork Floyd River in Sioux County, Iowa, 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 1989, making it 36 years old at the 2025 inventory.
- It carries about 7,300 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 281 of the 448 inventoried bridges in Sioux County rated good (62.7%); 14 (3.1%) 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 → (42.99837, -96.17551)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 261 ft |
| Location | 0.1 mi N of Jct. IA 10 |
| NBI structure number | 000000000048401 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Sioux County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 75 over Stream | 1998 | 7,300 | Good |
| US 18 over Rogg Creek | 1985 | 6,700 | Good |
| Ia 60 over Stream | 1991 | 6,500 | Good |
| Ia 10 over Floyd River | 1993 | 5,300 | Fair |
| US 18 over Drainage Ditch | 1976 | 5,200 | Fair |
| US 18 over West Fork Floyd River | 1976 | 5,200 | Fair |
All bridges nearby: Sioux County, IA bridge conditions · every bridge in Sioux County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.