Tr 503 over Otter Creek
Fair Condition38 years old1,700 vehicles/day
Location
| State | Illinois |
| County | LaSalle |
| Location | N 16th RD E 2110 |
| Carries | Tr 503 |
| Crosses | Otter Creek |
| Coordinates | 41.16473, -88.75743 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| 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 | 51.2 ft (15.6 m) |
| Max Span | 47.9 ft (14.6 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 113.9 sq m |
| Main Spans | 2 |
| Year Built | 1988 |
Traffic
| Avg Daily Traffic | 1,700 (2020) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 050352500000000 |