Pole Line Rd over Drainage Ditch
Winneshiek County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Pole Line Rd over Drainage Ditch in Winneshiek County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
- It was built in 2021, making it 4 years old at the 2025 inventory.
- It carries about 1,449 vehicles a day (traffic count year 2022).
- Its listed owner is a city or municipal highway agency.
- It is one of 130 of the 342 inventoried bridges in Winneshiek County rated good (38.0%); 57 (16.7%) 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 → (43.32036, -91.81029)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 9 | Excellent condition |
| Superstructure | 9 | Excellent condition |
| Substructure | 9 | Excellent condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 69 ft |
| Location | 0.25 Mi. east of Hwy 52 |
| NBI structure number | 000000000003531 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Winneshiek County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ia 9 over Trout Creek | 1969 | 14,900 | Fair |
| Ia 9 over Division St | 1969 | 8,900 | Fair |
| College Dr over Upper Iowa River | 1987 | 8,868 | Fair |
| Ia 9 over Trout Creek | 1969 | 5,400 | Fair |
| US 52 over Dry Run | 1963 | 4,230 | Fair |
| US 52 over Stream & Twin Springs Rd | 1963 | 4,230 | Fair |
All bridges nearby: Winneshiek County, IA bridge conditions · every bridge in Winneshiek County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.