NW Madrid DR over Big Creek Tributary
Fair Condition56 years old1,340 vehicles/day
Location
| State | Iowa |
| County | Polk |
| Location | 081253504 |
| Carries | NW Madrid DR |
| Crosses | Big Creek Tributary |
| Coordinates | 41.79194, -93.73419 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 444.9 ft (135.6 m) |
| Max Span | 170.9 ft (52.1 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 1328.9 sq m |
| Main Spans | 3 |
| Year Built | 1970 |
Traffic
| Avg Daily Traffic | 1,340 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000283308 |