Tr 311 over Trib To Marys River
Good Condition50 years old450 vehicles/day
Location
| State | Illinois |
| County | Randolph |
| Location | 1 Mi E Of Chester |
| Carries | Tr 311 |
| Crosses | Trib To Marys River |
| Coordinates | 37.92389, -89.78454 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Channel Beam |
| Total Length | 36.1 ft (11 m) |
| Max Span | 34.1 ft (10.4 m) |
| Deck Width | 26.2 ft (8 m) |
| Deck Area | 88 sq m |
| Main Spans | 1 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 450 (2024) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 079421400000000 |