Roby Road over Griffiths Creek
Good Condition15 years old950 vehicles/day
Location
| State | Illinois |
| County | Sangamon |
| Location | S Edge Mechanicsburg |
| Carries | Roby Road |
| Crosses | Griffiths Creek |
| Coordinates | 39.80413, -89.39705 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (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 | 65.0 ft (19.8 m) |
| Max Span | 65.0 ft (19.8 m) |
| Deck Width | 40.0 ft (12.2 m) |
| Deck Area | 241.6 sq m |
| Main Spans | 1 |
| Year Built | 2011 |
Traffic
| Avg Daily Traffic | 950 (2022) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 322 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 084350900000000 |