Mo 21 S over Salt Pine CR
Good Condition103 years old5,370 vehicles/day
Location
| State | Missouri |
| County | Washington |
| Location | S 3039 T 39 N R 3 E |
| Carries | Mo 21 S |
| Crosses | Salt Pine CR |
| Coordinates | 38.06937, -90.74476 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 36.7 ft (11.2 m) |
| Max Span | 12.8 ft (3.9 m) |
| Deck Width | 60.7 ft (18.5 m) |
| Deck Area | 207.2 sq m |
| Main Spans | 2 |
| Year Built | 1923 (reconstructed 1933) |
Traffic
| Avg Daily Traffic | 5,370 (2024) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 4641 |