Ia 3 over Brook Creek
Buena Vista County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ia 3 over Brook Creek in Buena Vista County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2010, making it 15 years old at the 2025 inventory.
- It carries about 1,930 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 56 of the 157 inventoried bridges in Buena Vista County rated good (35.7%); 54 (34.4%) 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 October 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 → (42.74884, -95.27228)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 109 ft |
| Location | 6.1 mi W of US 71 |
| NBI structure number | 000000000016201 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 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 Buena Vista County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ia 110 over Storm Lake Inlet | 1978 | 4,890 | Good |
| Ia 7 over Powell Creek | 1992 | 4,720 | Fair |
| US 71 & Ia 10 over Little Sioux River | 1973 | 4,570 | Fair |
| US 71 over Drainage Ditch #34 | 1985 | 3,830 | Good |
| US 71 over Drainage Ditch #34 | 1985 | 3,830 | Fair |
| US 71 over Branch Raccoon River | 1996 | 3,000 | Fair |
All bridges nearby: Buena Vista County, IA bridge conditions · every bridge in Buena Vista County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.