N Lasalle ST over Main Br Chicago Rv
Poor Condition98 years old18,600 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 307 N Lasalle St. |
| Carries | N Lasalle ST |
| Crosses | Main Br Chicago Rv |
| Coordinates | 41.88799, -87.63257 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 3 (Serious) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Movable - Bascule |
| Total Length | 326.4 ft (99.5 m) |
| Max Span | 242.1 ft (73.8 m) |
| Deck Width | 86.0 ft (26.2 m) |
| Deck Area | 2606.9 sq m |
| Main Spans | 1 |
| Year Built | 1928 (reconstructed 1971) |
Traffic
| Avg Daily Traffic | 18,600 (2022) |
| Truck Traffic | 5% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 016603200000000 |