US 218 over Big Slough Creek
Good Condition29 years old12,400 vehicles/day
Location
| State | Iowa |
| County | Washington |
| Location | 3.8 Mi. S Of Jct. Ia 92 |
| Carries | US 218 |
| Crosses | Big Slough Creek |
| Coordinates | 41.23717, -91.53264 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 37.1 ft (11.3 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Area | 302.8 sq m |
| Main Spans | 3 |
| Year Built | 1997 |
Traffic
| Avg Daily Traffic | 12,400 (2022) |
| Truck Traffic | 20% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000606880 |