SB I-29 over Haynie Slough
Fair Condition55 years old6,850 vehicles/day
Location
| State | Iowa |
| County | Mills |
| Location | 2.4 Mi. S Of S Jct. US 34 |
| Carries | SB I-29 |
| Crosses | Haynie Slough |
| Coordinates | 40.97087, -95.80000 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 83.0 ft (25.3 m) |
| Max Span | 30.8 ft (9.4 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 334.0 sq m |
| Main Spans | 3 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 6,850 (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 | 000000000036220 |