Ill 336 NB over Rock Creek
Fair Condition32 years old5,800 vehicles/day
Location
| State | Illinois |
| County | Adams |
| Location | 2mi N I172/24 Int |
| Carries | Ill 336 NB |
| Crosses | Rock Creek |
| Coordinates | 40.03587, -91.30465 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 229.0 ft (69.8 m) |
| Max Span | 113.2 ft (34.5 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 921.4 sq m |
| Main Spans | 2 |
| Year Built | 1994 |
Traffic
| Avg Daily Traffic | 5,800 (2023) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 001008300000000 |