RT Bb S over Isum CR
Fair Condition60 years old1,437 vehicles/day
Location
| State | Missouri |
| County | Jefferson |
| Location | S 30 T 42 N R 4 E |
| Carries | RT Bb S |
| Crosses | Isum CR |
| Coordinates | 38.34241, -90.62647 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 5 (Fair) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 40.4 ft (12.3 m) |
| Max Span | 14.1 ft (4.3 m) |
| Deck Width | 39.0 ft (11.9 m) |
| Deck Area | 146.4 sq m |
| Main Spans | 2 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 1,437 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 8391 |