FM Addison Ave over Wapsipinicon River
Howard County, Iowa · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- FM Addison Ave over Wapsipinicon River in Howard County, Iowa, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1968, making it 57 years old at the 2025 inventory.
- It carries about 285 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 41 of the 212 inventoried bridges in Howard County rated poor (19.3%); 41 (19.3%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (43.40737, -92.55399)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 4 | Poor condition |
| Superstructure | 5 | Fair condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete slab |
| Length | about 26 ft |
| Location | 099140702 |
| NBI structure number | 000000000183320 |
| Condition class | Poor |
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 |
| Ia 9 over So Branch Turkey River | 1974 | 3,440 | Fair |
| US 63 over Stream | 1993 | 3,360 | 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.