Local over Prairie Creek
Humboldt County, Iowa · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Local over Prairie Creek in Humboldt County, Iowa, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1900, making it 125 years old at the 2025 inventory.
- It carries about 15 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 7 of the 87 inventoried bridges in Humboldt County rated poor (8.0%); 7 (8.0%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (42.87749, -94.00506)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 3 | Serious condition |
| Superstructure | 4 | Poor condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Steel through truss |
| Length | about 67 ft |
| Location | 093271401 |
| NBI structure number | 000000000185030 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Humboldt County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 169 over W Fork Des Moines River | 1997 | 7,100 | Fair |
| US 169 over Indian Creek | 2011 | 5,400 | Good |
| Ia 3 over Stream | 1939 | 4,590 | Good |
| Sumner Ave SW over West Des Moines River | 2015 | 3,472 | Good |
| US 169 over Drainage Ditch | 1985 | 3,220 | Fair |
| US 169 over Bloody Run Creek | 1985 | 3,220 | Fair |
All bridges nearby: Humboldt County, IA bridge conditions · every bridge in Humboldt County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.