Il 58 (dempster S over N Br Chicago River
Fair Condition60 years old34,900 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 0.6 M E Il 43 |
| Carries | Il 58 (dempster S |
| Crosses | N Br Chicago River |
| Coordinates | 42.04089, -87.78787 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 77.1 ft (23.5 m) |
| Max Span | 74.1 ft (22.6 m) |
| Deck Width | 99.7 ft (30.4 m) |
| Deck Area | 714.4 sq m |
| Main Spans | 1 |
| Year Built | 1966 (reconstructed 1981) |
Traffic
| Avg Daily Traffic | 34,900 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016094200000000 |