Ill 100 over Seahorne Branch
Fair Condition90 years old550 vehicles/day
Location
| State | Illinois |
| County | Fulton |
| Location | 2.25 Mi N Marbletown |
| Carries | Ill 100 |
| Crosses | Seahorne Branch |
| Coordinates | 40.26195, -90.17755 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 27.6 ft (8.4 m) |
| Max Span | 25.6 ft (7.8 m) |
| Deck Width | 43.0 ft (13.1 m) |
| Deck Area | 110.0 sq m |
| Main Spans | 1 |
| Year Built | 1936 (reconstructed 1991) |
Traffic
| Avg Daily Traffic | 550 (2023) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 029002300000000 |