Yes, even though the state is a set of islands, there are
interstate highways in Hawaii. All four of the state’s interstate
highways are located on the island of Oahu, including:
-
H1 - runs east-west
along the southern side of the island;
-
H2 - runs north/south
from H1 through Mililani;
-
H3 - runs east/west
from H1 to the eastern side of the island;
-
H201 - a short
four-mile interstate that runs between two exits on H1 outside of Honolulu.