Il 23 over Coon Creek
Fair Condition15 years old3,250 vehicles/day
Location
| State | Illinois |
| County | McHenry |
| Location | 0.6 M S I-90 Toll |
| Carries | Il 23 |
| Crosses | Coon Creek |
| Coordinates | 42.17068, -88.61994 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 144.0 ft (43.9 m) |
| Max Span | 48.9 ft (14.9 m) |
| Deck Width | 48.2 ft (14.7 m) |
| Deck Area | 645.3 sq m |
| Main Spans | 3 |
| Year Built | 2011 |
Traffic
| Avg Daily Traffic | 3,250 (2023) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2021 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 056027700000000 |