Howison Road over Somonauk Creek
Good Condition45 years old275 vehicles/day
Location
| State | Illinois |
| County | DeKalb |
| Location | 885n 1200e |
| Carries | Howison Road |
| Crosses | Somonauk Creek |
| Coordinates | 41.76034, -88.71530 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 39.0 ft (11.9 m) |
| Max Span | 36.1 ft (11 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 97.6 sq m |
| Main Spans | 1 |
| Year Built | 1981 |
Traffic
| Avg Daily Traffic | 275 (2021) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 48 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 019531700000000 |