FM over Rocky Run
Crawford County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- FM over Rocky Run in Crawford 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 2004, making it 21 years old at the 2025 inventory.
- It carries about 40 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 135 of the 301 inventoried bridges in Crawford County rated good (44.9%); 23 (7.6%) 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 → (42.07991, -95.2732)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Steel culvert |
| Length | about 20 ft |
| Location | 084382105 |
| NBI structure number | 000000000128851 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Crawford County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ave C over West Boyer River | 1985 | 7,347 | Fair |
| Ave C over Cc RR | 1999 | 7,158 | Fair |
| US 30 over Drainage Ditch | 1958 | 4,670 | Fair |
| US 30 & 59 over over UP RR | 1962 | 4,500 | Fair |
| US 30 & 59 over East Boyer River | 1962 | 4,500 | Fair |
| US 30 & 59 over over UP RR | 1962 | 4,400 | Fair |
All bridges nearby: Crawford County, IA bridge conditions · every bridge in Crawford County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.