320th Street over Little Silver Creek
Fair Condition86 years old15 vehicles/day
Location
| State | Iowa |
| County | Pottawattamie |
| Location | 076412802 |
| Carries | 320th Street |
| Crosses | Little Silver Creek |
| Coordinates | 41.34914, -95.57502 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 50.9 ft (15.5 m) |
| Max Span | 30.8 ft (9.4 m) |
| Deck Width | 18.4 ft (5.6 m) |
| Deck Area | 86.8 sq m |
| Main Spans | 1 |
| Year Built | 1940 (reconstructed 1989) |
Traffic
| Avg Daily Traffic | 15 (2022) |
| Lanes On Bridge | 1 |
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 | 000000000288520 |