Il 23 over Kishwaukee R Overflo
Good Condition17 years old6,450 vehicles/day
Location
| State | Illinois |
| County | McHenry |
| Location | 1.3 Mi. N. US 20 |
| Carries | Il 23 |
| Crosses | Kishwaukee R Overflo |
| Coordinates | 42.26734, -88.60850 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 39.4 ft (12 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Area | 160.8 sq m |
| Main Spans | 3 |
| Year Built | 2009 |
Traffic
| Avg Daily Traffic | 6,450 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 922 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 056008300000000 |