US 45 & Il 21 over Aptakisic Creek
Good Condition18 years old33,400 vehicles/day
Location
| State | Illinois |
| County | Lake |
| Location | 1.0 M N Of Lake-cook |
| Carries | US 45 & Il 21 |
| Crosses | Aptakisic Creek |
| Coordinates | 42.16324, -87.92041 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 76.4 ft (23.3 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 83.3 ft (25.4 m) |
| Deck Area | 591.8 sq m |
| Main Spans | 3 |
| Year Built | 2008 |
Traffic
| Avg Daily Traffic | 33,400 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 049019400000000 |