NB US 218 over Sink Creek
Good Condition43 years old6,050 vehicles/day
Location
| State | Iowa |
| County | Black Hawk |
| Location | .7 Mi S Of Jct US 20/i380 |
| Carries | NB US 218 |
| Crosses | Sink Creek |
| Coordinates | 42.44572, -92.30318 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 177.2 ft (54 m) |
| Max Span | 48.9 ft (14.9 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 712.8 sq m |
| Main Spans | 4 |
| Year Built | 1983 |
Traffic
| Avg Daily Traffic | 6,050 (2022) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000605185 |