Tynan Road Ch C41 over Mazon River
Fair Condition64 years old600 vehicles/day
Location
| State | Illinois |
| County | Grundy |
| Location | 0.45 N. Bracville RD |
| Carries | Tynan Road Ch C41 |
| Crosses | Mazon River |
| Coordinates | 41.23464, -88.37054 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 183.7 ft (56 m) |
| Max Span | 68.6 ft (20.9 m) |
| Deck Width | 31.2 ft (9.5 m) |
| Deck Area | 532 sq m |
| Main Spans | 3 |
| Year Built | 1962 (reconstructed 2010) |
Traffic
| Avg Daily Traffic | 600 (2024) |
| Truck Traffic | 29% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 032324000000000 |