Science Ridge Road over Spring Creek
Poor Condition43 years old500 vehicles/day
Location
| State | Illinois |
| County | Whiteside |
| Location | 3 Mi NW Sterling |
| Carries | Science Ridge Road |
| Crosses | Spring Creek |
| Coordinates | 41.81933, -89.76740 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 75.1 ft (22.9 m) |
| Max Span | 71.9 ft (21.9 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 208.4 sq m |
| Main Spans | 1 |
| Year Built | 1983 |
Traffic
| Avg Daily Traffic | 500 (2021) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 098451300000000 |