Tr-51 Kinsman RD over Armstrong Run
Fair Condition12 years old75 vehicles/day
Location
| State | Illinois |
| County | Grundy |
| Location | .69 S Dupont Road |
| Carries | Tr-51 Kinsman RD |
| Crosses | Armstrong Run |
| Coordinates | 41.29619, -88.57479 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 69.6 ft (21.2 m) |
| Max Span | 66.9 ft (20.4 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 173.8 sq m |
| Main Spans | 1 |
| Year Built | 2014 |
Traffic
| Avg Daily Traffic | 75 (2024) |
| Truck Traffic | 35% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 032314600000000 |