Ch 21 over Curtis Creek
Fair Condition72 years old4,750 vehicles/day
Location
| State | Illinois |
| County | Adams |
| Location | S City Limits Quincy |
| Carries | Ch 21 |
| Crosses | Curtis Creek |
| Coordinates | 39.90424, -91.37773 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 91.9 ft (28 m) |
| Max Span | 34.1 ft (10.4 m) |
| Deck Width | 30.2 ft (9.2 m) |
| Deck Area | 257.6 sq m |
| Main Spans | 3 |
| Year Built | 1954 |
Traffic
| Avg Daily Traffic | 4,750 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 001301200000000 |