Tr-159a over Marys River
Good Condition23 years old50 vehicles/day
Location
| State | Illinois |
| County | Randolph |
| Location | 4 Miles SE Of Sparta |
| Carries | Tr-159a |
| Crosses | Marys River |
| Coordinates | 38.07340, -89.64682 |
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 | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 104.0 ft (31.7 m) |
| Max Span | 102.4 ft (31.2 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 231.4 sq m |
| Main Spans | 1 |
| Year Built | 2003 |
Traffic
| Avg Daily Traffic | 50 (2024) |
| Truck Traffic | 14% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 079416300000000 |