31st Street over Salt Creek
Good Condition24 years old17,600 vehicles/day
Location
| State | Illinois |
| County | DuPage |
| Location | 0.6mi E Of Il-83 |
| Carries | 31st Street |
| Crosses | Salt Creek |
| Coordinates | 41.83247, -87.94510 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 143.7 ft (43.8 m) |
| Max Span | 54.1 ft (16.5 m) |
| Deck Width | 82.3 ft (25.1 m) |
| Deck Area | 1099.4 sq m |
| Main Spans | 3 |
| Year Built | 2002 |
Traffic
| Avg Daily Traffic | 17,600 (2024) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 922 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 022305000000000 |