Porter RD over Five Mile Branch
Good Condition27 years old10 vehicles/day
Location
| State | Illinois |
| County | Lee |
| Location | 1 Mi NW Of Harmon |
| Carries | Porter RD |
| Crosses | Five Mile Branch |
| Coordinates | 41.73682, -89.57092 |
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 | 41.7 ft (12.7 m) |
| Max Span | 39.0 ft (11.9 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 108.0 sq m |
| Main Spans | 1 |
| Year Built | 1999 |
Traffic
| Avg Daily Traffic | 10 (2017) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 222 |
| Inspection Frequency | Every 48 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 052430200000000 |