Lake Shore Drive over Main Br Chicago Riv
Poor Condition89 years old102,000 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 402 N & 520 E |
| Carries | Lake Shore Drive |
| Crosses | Main Br Chicago Riv |
| Coordinates | 41.88853, -87.61417 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 4 (Poor) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Movable - Bascule |
| Total Length | 352.4 ft (107.4 m) |
| Max Span | 264.1 ft (80.5 m) |
| Deck Width | 107.3 ft (32.7 m) |
| Deck Area | 3512.0 sq m |
| Main Spans | 1 |
| Year Built | 1937 (reconstructed 1988) |
Traffic
| Avg Daily Traffic | 102,000 (2024) |
| Truck Traffic | 1% |
| Lanes On Bridge | 8 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 016603000000000 |