Dean RD over Rock Creek
Fair Condition40 years old50 vehicles/day
Location
| State | Illinois |
| County | Whiteside |
| Location | 4 Mi NW Of Coleta |
| Carries | Dean RD |
| Crosses | Rock Creek |
| Coordinates | 41.92703, -89.87169 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 66.9 ft (20.4 m) |
| Max Span | 63.3 ft (19.3 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 173.4 sq m |
| Main Spans | 1 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 50 (2021) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 098361300000000 |