Old Irondale RD over Flat Rvr
Good Condition96 years old40 vehicles/day
Location
| State | Missouri |
| County | St. Francois |
| Location | S 28 T 36 N R 4 E |
| Carries | Old Irondale RD |
| Crosses | Flat Rvr |
| Coordinates | 37.80963, -90.60557 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Slab |
| Total Length | 55.1 ft (16.8 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 22.6 ft (6.9 m) |
| Deck Area | 115.9 sq m |
| Main Spans | 2 |
| Year Built | 1930 (reconstructed 1991) |
Traffic
| Avg Daily Traffic | 40 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 15770 |