Ia 57 over Phelps Creek
Butler County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ia 57 over Phelps Creek in Butler 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 2017, making it 8 years old at the 2025 inventory.
- It carries about 2,400 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 175 of the 287 inventoried bridges in Butler County rated good (61.0%); 35 (12.2%) 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 → (42.57034, -92.76522)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 38 ft |
| Location | 0.3 Mi. E of Ia 14 |
| NBI structure number | 000000000016421 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Butler County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ia 3 over over Ianr RR | 1967 | 3,540 | Fair |
| Ia 3 over Shell Rock River | 1967 | 3,540 | Fair |
| Cherry St over Shell Rock River | 1915 | 3,435 | Fair |
| Ia 57 over Drainage Ditch | 1924 | 2,480 | Fair |
| Ia 57 over Beaver Creek | 2003 | 2,480 | Good |
| Ia 57 over Drainage Ditch | 2023 | 2,400 | Good |
All bridges nearby: Butler County, IA bridge conditions · every bridge in Butler County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.