FM over Dry Run
O'Brien County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- FM over Dry Run in O'Brien County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2001, making it 24 years old at the 2025 inventory.
- It carries about 60 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 128 of the 263 inventoried bridges in O'Brien County rated good (48.7%); 16 (6.1%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated July 2023, on a 48-month routine inspection cycle.
- 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 → (43.04107, -95.63668)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 90 ft |
| Location | 095412401 |
| NBI structure number | 000000000260231 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2023 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in O'Brien County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ia 60 over Engels Creek | 2006 | 5,300 | Good |
| US 18 over Branch Little Floyd Rvr | 1958 | 4,530 | Fair |
| US 18 over Drainage Ditch | 1958 | 4,530 | Fair |
| US 18 over Little Floyd River | 1957 | 4,230 | Fair |
| US 18 over Stream | 1959 | 3,640 | Fair |
| US 18 over Waterman Creek | 2020 | 3,530 | Good |
All bridges nearby: O'Brien County, IA bridge conditions · every bridge in O'Brien County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.