Texas Park Road 100
| Ocean Boulevard | ||||
PR 100 highlighted in red | ||||
| Route information | ||||
| Maintained by TxDOT | ||||
| Length | 13.918 mi (22.399 km) | |||
| Existed | February 29, 1968–present | |||
| Major junctions | ||||
| South end | SH 100 at the Queen Isabella Causeway in Port Isabel | |||
| North end | Padre Island National Seashore | |||
| Location | ||||
| Country | United States | |||
| State | Texas | |||
| Counties | Cameron | |||
| Highway system | ||||
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Park Road 100 (PR 100) is a park road in the Rio Grande Valley in Cameron County, in the U.S. state of Texas. It runs along South Padre Island through the town of the same name.