Backbone ST Pk over Stream
Fair Condition92 years old
Location
| State | Iowa |
| County | Delaware |
| Location | In Backbone State Park |
| Carries | Backbone ST Pk |
| Crosses | Stream |
| Coordinates | 42.63741, -91.55672 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 42.0 ft (12.8 m) |
| Max Span | 42.0 ft (12.8 m) |
| Deck Width | 21.3 ft (6.5 m) |
| Deck Area | 83.2 sq m |
| Main Spans | 1 |
| Year Built | 1934 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Park/Forest Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000699010 |