Howison RD over Somonauk Creek
Fair Condition59 years old275 vehicles/day
Location
| State | Illinois |
| County | DeKalb |
| Location | 705n 1200e |
| Carries | Howison RD |
| Crosses | Somonauk Creek |
| Coordinates | 41.73344, -88.71535 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Channel Beam |
| Total Length | 68.9 ft (21 m) |
| Max Span | 33.1 ft (10.1 m) |
| Deck Width | 26.6 ft (8.1 m) |
| Deck Area | 170.1 sq m |
| Main Spans | 2 |
| Year Built | 1967 |
Traffic
| Avg Daily Traffic | 275 (2021) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 019531300000000 |