Route 58 is a two-mile (3.2 km) road that stretches from Route 50 in Lihue to the junction of Wapaa Road with Hawaii 51 near Nawiliwili Harbor on Kauaʻi island.

Route 58 begins at an intersection with Route 50 at the Kukui Grove Shopping Center, one of the few major shopping areas on Kauaʻi island.

About halfway down route 58 is the Grove Farm Museum.

[1] From the southern end of route 58, Niumalu Road provides access to Nawiliwili Beach Park and Niumalu Beach Park.

[2] The entire route is in Lihue, Kauai County.