230TH Ave over Middle Branch Blue Earth
Kossuth County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 230TH Ave over Middle Branch Blue Earth in Kossuth 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 2023, making it 2 years old at the 2025 inventory.
- It carries about 11 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 123 of the 266 inventoried bridges in Kossuth County rated good (46.2%); 40 (15.0%) 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 June 2023, on a 24-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 → (43.41174, -94.01014)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 9 | 9 | Excellent condition |
| Superstructure | 9 | 9 | Excellent condition |
| Substructure | 9 | 9 | Excellent condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 83 ft |
| Location | 099271101 |
| NBI structure number | 000000000216822 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2023 |
| Inspection interval (item 91) | 24 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 Kossuth County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 169 over E Fork Des Moines River | 2008 | 7,500 | Good |
| US 18 over E Fork Des Moines River | 1984 | 5,900 | Good |
| US 18 over Drainage Ditch | 1993 | 4,660 | Good |
| US 169 over E Fork Des Moines River | 1971 | 3,460 | Fair |
| US 169 over Drainage Ditch | 1985 | 2,880 | Good |
| US 169 over E Fork Des Moines River | 1971 | 2,880 | Fair |
All bridges nearby: Kossuth County, IA bridge conditions · every bridge in Kossuth County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.