Ch 21 Sand RD over I-88 & Stream
Good Condition51 years old400 vehicles/day
Location
| State | Illinois |
| County | Whiteside |
| Location | 2.5 Mi. Nw. Erie |
| Carries | Ch 21 Sand RD |
| Crosses | I-88 & Stream |
| Coordinates | 41.68034, -90.13154 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 541.3 ft (165 m) |
| Max Span | 184.4 ft (56.2 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 1501.5 sq m |
| Main Spans | 3 |
| Year Built | 1975 |
Traffic
| Avg Daily Traffic | 400 (2021) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 098005600000000 |