Ms-1117 ST Johns A over Ravine
Fair Condition54 years old1,400 vehicles/day
Location
| State | Illinois |
| County | Lake |
| Location | 3.3 M N Lake Cook RD |
| Carries | Ms-1117 ST Johns A |
| Crosses | Ravine |
| Coordinates | 42.20018, -87.80273 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 154.9 ft (47.2 m) |
| Max Span | 51.2 ft (15.6 m) |
| Deck Width | 42.0 ft (12.8 m) |
| Deck Area | 604.2 sq m |
| Main Spans | 3 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 1,400 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 049655200000000 |