Il 23 over Riley Creek
Fair Condition24 years old5,200 vehicles/day
Location
| State | Illinois |
| County | McHenry |
| Location | 1.2 M N I-90 Toll |
| Carries | Il 23 |
| Crosses | Riley Creek |
| Coordinates | 42.19531, -88.61814 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 5 (Fair) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 35.4 ft (10.8 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 44.9 ft (13.7 m) |
| Deck Area | 148.0 sq m |
| Main Spans | 3 |
| Year Built | 2002 |
Traffic
| Avg Daily Traffic | 5,200 (2023) |
| Truck Traffic | 22% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 056007000000000 |