Pr 181 17.9 Km over Unknown Creek
Poor Condition86 years old6,300 vehicles/day
Location
| State | Puerto Rico |
| County | San Lorenzo Municipio |
| Location | 10.4 Km North Of Patillas |
| Carries | Pr 181 17.9 Km |
| Crosses | Unknown Creek |
| Coordinates | 18.09278, -66.00078 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 54.5 ft (16.6 m) |
| Max Span | 18.7 ft (5.7 m) |
| Deck Width | 26.6 ft (8.1 m) |
| Deck Area | 134.5 sq m |
| Main Spans | 3 |
| Year Built | 1940 |
Traffic
| Avg Daily Traffic | 6,300 (2017) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 004151 |