Mo 21 S over Meramec Rvr Crd Meramec
Fair Condition86 years old18,038 vehicles/day
Location
| State | Missouri |
| County | St. Louis |
| Location | S 13 T 43 N R 4 E |
| Carries | Mo 21 S |
| Crosses | Meramec Rvr Crd Meramec |
| Coordinates | 38.46292, -90.41489 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Truss - Thru |
| Total Length | 648.0 ft (197.5 m) |
| Max Span | 264.1 ft (80.5 m) |
| Deck Width | 51.8 ft (15.8 m) |
| Deck Area | 3120.5 sq m |
| Main Spans | 3 |
| Year Built | 1940 (reconstructed 2009) |
Traffic
| Avg Daily Traffic | 18,038 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 5881 |