Local over Mill Creek
O'Brien County, Iowa · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Local over Mill Creek in O'Brien County, Iowa, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1924, making it 101 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 16 of the 263 inventoried bridges in O'Brien County rated poor (6.1%); 16 (6.1%) 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 → (42.95523, -95.70296)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 4 | Poor condition |
| Substructure | 3 | Serious condition |
Bridge details
| Structure | Steel through truss |
| Length | about 102 ft |
| Location | 094411602 |
| NBI structure number | 000000000259130 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in O'Brien County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ia 60 over Engels Creek | 2006 | 5,300 | Good |
| US 18 over Branch Little Floyd Rvr | 1958 | 4,530 | Fair |
| US 18 over Drainage Ditch | 1958 | 4,530 | Fair |
| US 18 over Little Floyd River | 1957 | 4,230 | Fair |
| US 18 over Stream | 1959 | 3,640 | Fair |
| US 18 over Waterman Creek | 2020 | 3,530 | Good |
All bridges nearby: O'Brien County, IA bridge conditions · every bridge in O'Brien County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.