300th ST over Miners Creek
Poor Condition110 years old39 vehicles/day
Location
| State | Iowa |
| County | Clayton |
| Location | 092031205 |
| Carries | 300th ST |
| Crosses | Miners Creek |
| Coordinates | 42.79686, -91.13711 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 4 (Poor) |
| Substructure | 3 (Serious) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 40.0 ft (12.2 m) |
| Max Span | 38.1 ft (11.6 m) |
| Deck Width | 20.7 ft (6.3 m) |
| Deck Area | 76.9 sq m |
| Main Spans | 1 |
| Year Built | 1916 |
Traffic
| Avg Daily Traffic | 39 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 000000000118670 |