Tr 21a over Stream
Good Condition30 years old10 vehicles/day
Location
| State | Illinois |
| County | Knox |
| Location | Nw1/4sec15r2et13n |
| Carries | Tr 21a |
| Crosses | Stream |
| Coordinates | 41.12289, -90.26789 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 25.3 ft (7.7 m) |
| Max Span | 25.3 ft (7.7 m) |
| Deck Area | 56.2 sq m |
| Main Spans | 1 |
| Year Built | 1996 |
Traffic
| Avg Daily Traffic | 10 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 225 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 048502700000000 |