Big Mound RD over I-39 & US 51
Good Condition46 years old225 vehicles/day
Location
| State | Illinois |
| County | Ogle |
| Location | 1.5 Mi S Of Ill 72 |
| Carries | Big Mound RD |
| Crosses | I-39 & US 51 |
| Coordinates | 42.07885, -89.02237 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 256.2 ft (78.1 m) |
| Max Span | 104.0 ft (31.7 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 710.7 sq m |
| Main Spans | 2 |
| Year Built | 1980 |
Traffic
| Avg Daily Traffic | 225 (2022) |
| Truck Traffic | 32% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 071005000000000 |