Highway 44 is part of land bridge project running across the Kra Isthmus.

[1][2] Route 44 is part of land bridge project of Thailand's southern seaboard.

Route 44 was slated to connect seaports on both the western and eastern coasts of Thailand.

However, the project is currently stalled and nothing has been built but the roadways, leaving the centre of the highway empty.

In Krabi Province, it starts at Amphoe Ao Luek and passes through Plai Phraya.