Tr 31 (iberg Rd) over Spanker Branch
Good Condition32 years old200 vehicles/day
Location
| State | Illinois |
| County | Clinton |
| Location | 640e Iberg RD |
| Carries | Tr 31 (iberg Rd) |
| Crosses | Spanker Branch |
| Coordinates | 38.70679, -89.58768 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 61.7 ft (18.8 m) |
| Max Span | 59.1 ft (18 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 161.7 sq m |
| Main Spans | 1 |
| Year Built | 1994 |
Traffic
| Avg Daily Traffic | 200 (2020) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 48 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 014403700000000 |