SB I-29 over Drainage Ditch
Fair Condition60 years old7,250 vehicles/day
Location
| State | Iowa |
| County | Harrison |
| Location | 1.6 Mi. N Of Jct. SR F-20 |
| Carries | SB I-29 |
| Crosses | Drainage Ditch |
| Coordinates | 41.82118, -96.07307 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 315.9 ft (96.3 m) |
| Max Span | 121.1 ft (36.9 m) |
| Deck Width | 33.5 ft (10.2 m) |
| Deck Area | 982.3 sq m |
| Main Spans | 3 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 7,250 (2022) |
| Truck Traffic | 32% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000028390 |