Tr 450 over Grindstone Creek
Fair Condition40 years old50 vehicles/day
Location
| State | Illinois |
| County | Adams |
| Location | 1.0 Mi NE Kingston |
| Carries | Tr 450 |
| Crosses | Grindstone Creek |
| Coordinates | 39.83307, -91.01118 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 53.1 ft (16.2 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 118.3 sq m |
| Main Spans | 1 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 50 (2024) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 001336000000000 |