US 20 over Grand Calumet River
Good Condition20 years old19,844 vehicles/day
Location
| State | Indiana |
| County | Lake |
| Location | 01.03 E SR 312 |
| Carries | US 20 |
| Crosses | Grand Calumet River |
| Coordinates | 41.61441, -87.48071 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Box Beam - Single/Spread |
| Total Length | 169.9 ft (51.8 m) |
| Max Span | 55.8 ft (17 m) |
| Deck Width | 79.7 ft (24.3 m) |
| Deck Area | 1258.7 sq m |
| Main Spans | 3 |
| Year Built | 2006 |
Traffic
| Avg Daily Traffic | 19,844 (2021) |
| Truck Traffic | 6% |
| Lanes On Bridge | 5 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 005190 |