Tr-20-a over Spring Creek
Fair Condition96 years old100 vehicles/day
Location
| State | Illinois |
| County | LaSalle |
| Location | E 1st N 3630 |
| Carries | Tr-20-a |
| Crosses | Spring Creek |
| Coordinates | 41.46020, -89.14600 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 34.1 ft (10.4 m) |
| Max Span | 32.2 ft (9.8 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 75.9 sq m |
| Main Spans | 1 |
| Year Built | 1930 (reconstructed 1983) |
Traffic
| Avg Daily Traffic | 100 (2016) |
| 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 | 050307800000000 |