Harmon RD over Drainage Ditch
Good Condition29 years old325 vehicles/day
Location
| State | Illinois |
| County | Lee |
| Location | 1 Mi S Rock Islnd RD |
| Carries | Harmon RD |
| Crosses | Drainage Ditch |
| Coordinates | 41.79788, -89.55370 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 44.6 ft (13.6 m) |
| Max Span | 43.0 ft (13.1 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 123.8 sq m |
| Main Spans | 1 |
| Year Built | 1997 |
Traffic
| Avg Daily Traffic | 325 (2022) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 222 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 052333100000000 |