Puerto Rico Highway 138
| Ruta 138 | ||||
| Avenida Luis Muñoz Marín | ||||
| Route information | ||||
| Maintained by Puerto Rico DTPW | ||||
| Length | 2.6 km (1.6 mi) | |||
| Major junctions | ||||
| South end | PR-14 / PR-153 San Ildefonso | |||
| PR-150 in San Ildefonso | ||||
| North end | PR-155 in Pasto | |||
| Location | ||||
| Country | United States | |||
| Territory | Puerto Rico | |||
| Municipalities | Coamo | |||
| Highway system | ||||
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Puerto Rico Highway 138 (PR-138) is a north–south bypass located west of downtown Coamo, Puerto Rico. This road extends from PR-155 to the junction of PR-14 with PR-153 and is known as Avenida Luis Muñoz Marín.