100th ST over Calumet River
Poor Condition99 years old3,100 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 3300 E 100th Street |
| Carries | 100th ST |
| Crosses | Calumet River |
| Coordinates | 41.71382, -87.54305 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 4 (Poor) |
| Substructure | 4 (Poor) |
| 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 | 233.6 ft (71.2 m) |
| Deck Width | 62.0 ft (18.9 m) |
| Deck Area | 1880.5 sq m |
| Main Spans | 1 |
| Year Built | 1927 (reconstructed 1992) |
Traffic
| Avg Daily Traffic | 3,100 (2022) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016604200000000 |