#H3 HAWAII SERIES#
H-1 west does not have access to H-201 at this point.įrom here H-1 runs through the city of Honolulu along a series of underpasses and viaducts. Access is provided by a left exit from H-1 east only. Two miles past the airport exit, three lanes exit the freeway at exit 18A to join Nimitz Highway toward Waikiki, while half a mile later the remaining two lanes make a sharp turn south as H-1 reaches another major interchange with the east end of Interstate H-201. H-1 westbound viewed from Ward Avenue near downtown Honolulu It is both the southernmost and westernmost signed Interstate Highway in the United States. West of Middle Street, H-1 is also known as the Queen Liliʻuokalani Freeway this name is shown on some roadmaps. East of Middle Street in Honolulu (exit 19A), H-1 is also known as the Lunalilo Freeway and is sometimes signed as such at older signs in central Honolulu.
H-1 goes from Route 93 (Farrington Highway) in Kapolei to Route 72 (Kalanianaole Highway) in Kāhala. Despite the number, this is an east–west highway the 'H'-series (for Hawaii) numbering reflects the order in which routes were funded and built. The highway is located on the island of O‘ahu. Interstate H-1 (abbreviated H-1) is the longest and busiest Interstate Highway in the US state of Hawaii.