Interstate H-1
Interstate H-1 is an intrastate interstate highway in Hawai'i, United States, on the island of O'ahu. Despite the number, this is an east-west highway—the 'H'-series (for Hawai'i) numbering reflects the order in which routes were funded and built. H-1 goes from Makakilo at Hawai'i State Rte. 93 (Farrington Highway) to Kāhala at State Rte. 72 (Kalaniana'ole Highway).
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. West of Middle Street, H-1 is also known as the Queen Liliuokalani Freeway; this name is shown on some roadmaps.
Length
| Miles | km
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|
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| 27 | 43 | Hawaii
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|
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| 27 | 43 | Total
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Major Cities, Towns, and Sites Along the Route
Intersections with other Interstates
Spur Routes
- A portion of the Moanalua Freeway is designated as Interstate H-201. Until mid-2004, it was signed as Hawaii State Route 78. An unconfirmed rumor suggests that the reason this interstate was unsigned for fifteen years after it was designated is because the Hawaii Department of Transportation couldn't find an interstate sign that could accommodate the four characters "H201". (Even though the hyphen is technically in the name, HDOT doesn't put it on newer signs.) The attached image is an artist's rendering of an H-201 sign; the artist had to use the FHWA "B" font (the skinniest font in use) to make the H201 fit on the sign.
Notes
This was the first freeway of any kind built in the Hawaiian Islands. The portion of H-1 that runs through downtown Honolulu opened in 1953 as the Mauka Arterial; it was added to the Interstate system when Hawaii became a state.
