Fas 661(ch 20) over Kaskaskia River
Fair Condition89 years old600 vehicles/day
Location
| State | Illinois |
| County | Coles |
| Location | N Of Cooks Mills |
| Carries | Fas 661(ch 20) |
| Crosses | Kaskaskia River |
| Coordinates | 39.58323, -88.41357 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 278.9 ft (85 m) |
| Max Span | 76.1 ft (23.2 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 858.5 sq m |
| Main Spans | 4 |
| Year Built | 1937 (reconstructed 1981) |
Traffic
| Avg Daily Traffic | 600 (2024) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 015005600000000 |