SR 309 over Mud River
Fair Condition71 years old6,788 vehicles/day
Location
| State | Ohio |
| County | Marion |
| Location | 2.61 Mi E Of Sr98 |
| Carries | SR 309 |
| Crosses | Mud River |
| Coordinates | 40.63083, -82.98522 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 73.2 ft (22.3 m) |
| Max Span | 27.6 ft (8.4 m) |
| Deck Width | 40.0 ft (12.2 m) |
| Deck Area | 272.1 sq m |
| Main Spans | 3 |
| Year Built | 1955 |
Traffic
| Avg Daily Traffic | 6,788 (2015) |
| Truck Traffic | 14% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 5101832 |