Mo 231 S over Is 255
Fair Condition19 years old41,695 vehicles/day
Location
| State | Missouri |
| County | St. Louis |
| Location | S 1 T 43 N R 6 E |
| Carries | Mo 231 S |
| Crosses | Is 255 |
| Coordinates | 38.49481, -90.30199 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 240.2 ft (73.2 m) |
| Max Span | 120.1 ft (36.6 m) |
| Deck Width | 102.7 ft (31.3 m) |
| Deck Area | 2291.2 sq m |
| Main Spans | 2 |
| Year Built | 2007 |
Traffic
| Avg Daily Traffic | 41,695 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 7 |
| Lanes Under Bridge | 8 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 31869 |