Backbone ST Pk over Stream
Fair Condition91 years old
Location
| State | Iowa |
| County | Delaware |
| Location | In Backbone State Park |
| Carries | Backbone ST Pk |
| Crosses | Stream |
| Coordinates | 42.62174, -91.55689 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 30.8 ft (9.4 m) |
| Max Span | 25.9 ft (7.9 m) |
| Deck Width | 23.3 ft (7.1 m) |
| Deck Area | 66.7 sq m |
| Main Spans | 1 |
| Year Built | 1935 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | State Park/Forest Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 000000000699020 |