Lasalle Street over Trolley Car Tunnel
Poor Condition115 years old4,750 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | S. Of Chicago River |
| Carries | Lasalle Street |
| Crosses | Trolley Car Tunnel |
| Coordinates | 41.88627, -87.63247 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 3 (Serious) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 107.9 ft (32.9 m) |
| Max Span | 105.6 ft (32.2 m) |
| Deck Width | 34.4 ft (10.5 m) |
| Deck Area | 345.4 sq m |
| Main Spans | 1 |
| Year Built | 1911 (reconstructed 1945) |
Traffic
| Avg Daily Traffic | 4,750 (2022) |
| Truck Traffic | 13% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016617500000000 |