340th Street over Middle Silver Creek
Fair Condition28 years old270 vehicles/day
Location
| State | Iowa |
| County | Pottawattamie |
| Location | 076413504 |
| Carries | 340th Street |
| Crosses | Middle Silver Creek |
| Coordinates | 41.33961, -95.53649 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 70.9 ft (21.6 m) |
| Max Span | 68.9 ft (21 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 218.2 sq m |
| Main Spans | 1 |
| Year Built | 1998 |
Traffic
| Avg Daily Traffic | 270 (2022) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000288561 |