Science Ridge Road over Elkhorn Creek
Fair Condition68 years old2,300 vehicles/day
Location
| State | Illinois |
| County | Whiteside |
| Location | 1 Mi NW Of Sterling |
| Carries | Science Ridge Road |
| Crosses | Elkhorn Creek |
| Coordinates | 41.82311, -89.72018 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 229.7 ft (70 m) |
| Max Span | 87.9 ft (26.8 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 637 sq m |
| Main Spans | 3 |
| Year Built | 1958 (reconstructed 1963) |
Traffic
| Avg Daily Traffic | 2,300 (2021) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 098302600000000 |