ST Clair AVE WB over Harding Ditch
Good Condition86 years old5,900 vehicles/day
Location
| State | Illinois |
| County | St. Clair |
| Location | 1.5 M W Ill 157 |
| Carries | ST Clair AVE WB |
| Crosses | Harding Ditch |
| Coordinates | 38.60761, -90.07800 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 53.8 ft (16.4 m) |
| Max Span | 50.2 ft (15.3 m) |
| Deck Width | 39.0 ft (11.9 m) |
| Deck Area | 195.2 sq m |
| Main Spans | 1 |
| Year Built | 1940 (reconstructed 1986) |
Traffic
| Avg Daily Traffic | 5,900 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 082003400000000 |