New Donnan Rd over the Coulee
Fayette County, Iowa · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- New Donnan Rd over the Coulee in Fayette County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1925, making it 100 years old at the 2025 inventory.
- It carries about 26 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 140 of the 362 inventoried bridges in Fayette County rated fair (38.7%); 97 (26.8%) 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 → (42.89951, -91.87531)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 26 ft |
| Location | 093090206 |
| NBI structure number | 000000000004150 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Fayette County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ia 150 over Otter Creek | 1979 | 5,400 | Fair |
| Ia 3 & 150 over Otter Creek | 1986 | 3,930 | Fair |
| Ia 150 over Unnamed Creek | 1928 | 3,290 | Fair |
| Ia 150 over Stream | 1969 | 3,290 | Good |
| US 18 over Glover Creek | 1976 | 3,110 | Good |
| US 18 over Stream | 1963 | 3,050 | Fair |
All bridges nearby: Fayette County, IA bridge conditions · every bridge in Fayette County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.