320th ST over Stream
Good Condition12 years old11 vehicles/day
Location
| State | Iowa |
| County | Adair |
| Location | 74331939 |
| Carries | 320th ST |
| Crosses | Stream |
| Coordinates | 41.18759, -94.69524 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 69.9 ft (21.3 m) |
| Max Span | 68.9 ft (21 m) |
| Deck Width | 24.6 ft (7.5 m) |
| Deck Area | 159.8 sq m |
| Main Spans | 1 |
| Year Built | 2014 |
Traffic
| Avg Daily Traffic | 11 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000055411 |