Il 31 NB Exit Ram over Crystal Creek
Good Condition13 years old1,200 vehicles/day
Location
| State | Illinois |
| County | McHenry |
| Location | 0.1 M S Algonquin RD |
| Carries | Il 31 NB Exit Ram |
| Crosses | Crystal Creek |
| Coordinates | 42.16799, -88.29681 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 138.5 ft (42.2 m) |
| Max Span | 131.6 ft (40.1 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 438.9 sq m |
| Main Spans | 1 |
| Year Built | 2013 |
Traffic
| Avg Daily Traffic | 1,200 (2021) |
| Truck Traffic | 12% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 056007900000000 |