Ia 9 over So Branch Turkey River
Howard County, Iowa · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ia 9 over So Branch Turkey River in Howard 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 1974, making it 51 years old at the 2025 inventory.
- It carries about 3,440 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 76 of the 212 inventoried bridges in Howard County rated fair (35.8%); 41 (19.3%) 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 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 → (43.371, -92.25734)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 38 ft |
| Location | 2.1 Mi. E of US 63 |
| NBI structure number | 000000000028751 |
| Condition class | Fair |
| 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 Howard County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 63 over Crane Creek | 1971 | 4,360 | Fair |
| US 63 over W.br.turkey River | 1993 | 3,930 | Good |
| US 63 over Upper Iowa River | 1982 | 3,860 | Fair |
| US 63 over Turkey River | 1971 | 3,830 | Fair |
| US 63 over Stream | 1993 | 3,360 | Good |
| US 63 over Beaver Creek | 1993 | 3,290 | Good |
All bridges nearby: Howard County, IA bridge conditions · every bridge in Howard County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.