Ia 13 over Roberts Creek
Good Condition47 years old4,900 vehicles/day
Location
| State | Iowa |
| County | Clayton |
| Location | 0.8 Mi. S Of S Jct Ia 128 |
| Carries | Ia 13 |
| Crosses | Roberts Creek |
| Coordinates | 42.87401, -91.38283 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 271.0 ft (82.6 m) |
| Max Span | 91.9 ft (28 m) |
| Deck Width | 47.2 ft (14.4 m) |
| Deck Area | 1189.4 sq m |
| Main Spans | 3 |
| Year Built | 1979 |
Traffic
| Avg Daily Traffic | 4,900 (2021) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000020641 |