US 218 over Trib-shell Rock River
Fair Condition30 years old8,300 vehicles/day
Location
| State | Iowa |
| County | Bremer |
| Location | 1.1 Mi. N Of Jct. Ia 3 |
| Carries | US 218 |
| Crosses | Trib-shell Rock River |
| Coordinates | 42.73093, -92.53343 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 27.9 ft (8.5 m) |
| Max Span | 13.1 ft (4 m) |
| Deck Area | 232.9 sq m |
| Main Spans | 2 |
| Year Built | 1996 |
Traffic
| Avg Daily Traffic | 8,300 (2022) |
| Truck Traffic | 24% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000601740 |