NB I-29 over Allen Creek
Fair Condition59 years old7,750 vehicles/day
Location
| State | Iowa |
| County | Harrison |
| Location | 1.9 Mi. N Of Jct. US 30 |
| Carries | NB I-29 |
| Crosses | Allen Creek |
| Coordinates | 41.57403, -95.92809 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 160.1 ft (48.8 m) |
| Max Span | 61.0 ft (18.6 m) |
| Deck Width | 42.3 ft (12.9 m) |
| Deck Area | 629.5 sq m |
| Main Spans | 3 |
| Year Built | 1967 |
Traffic
| Avg Daily Traffic | 7,750 (2022) |
| Truck Traffic | 31% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000028150 |