I-39/US 51 SB over Sandy Creek
Fair Condition38 years old9,700 vehicles/day
Location
| State | Illinois |
| County | LaSalle |
| Location | 1.23 Mi N Of Ill 18 |
| Carries | I-39/US 51 SB |
| Crosses | Sandy Creek |
| Coordinates | 41.13718, -89.07539 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 151.9 ft (46.3 m) |
| Max Span | 49.5 ft (15.1 m) |
| Deck Width | 43.0 ft (13.1 m) |
| Deck Area | 606.5 sq m |
| Main Spans | 3 |
| Year Built | 1988 |
Traffic
| Avg Daily Traffic | 9,700 (2023) |
| Truck Traffic | 36% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 050021200000000 |