Ia 188 over Dry Run Creek
Butler County, Iowa · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ia 188 over Dry Run Creek in Butler County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1959, making it 66 years old at the 2025 inventory.
- It carries about 490 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 77 of the 287 inventoried bridges in Butler County rated fair (26.8%); 35 (12.2%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (42.84725, -92.61216)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 7 | Good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 145 ft |
| Location | 3.4 mi. W of Jct. US 218 |
| NBI structure number | 000000000016770 |
| Condition class | Fair |
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 Phelps Creek | 2017 | 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.