FM over Williams Creek
Washington County, Iowa · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- FM over Williams Creek in Washington County, Iowa, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1936, making it 89 years old at the 2025 inventory.
- It carries about 1,650 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 33 of the 207 inventoried bridges in Washington County rated poor (15.9%); 33 (15.9%) 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 → (41.17221, -91.65865)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Superstructure | 5 | Fair condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 60 ft |
| Location | 074073404 |
| NBI structure number | 000000000335850 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.
Busiest bridges in Washington County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 218 over Whiskey Run Creek | 1984 | 14,900 | Fair |
| US 218 over Stream | 1984 | 14,900 | Fair |
| US 218 over Drainage | 1997 | 13,800 | Good |
| US 218 over Big Slough Creek | 1997 | 12,400 | Good |
| SB US 218 over Goose Creek | 1984 | 7,600 | Fair |
| SB US 218 over Davis Creek | 1984 | 7,600 | Fair |
All bridges nearby: Washington County, IA bridge conditions · every bridge in Washington County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.