Interstate H-1
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| Interstate H1 Main route of the Interstate Highway System |
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| Length: | 27.16 mi[1] (43.71 km) | ||||
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| Formed: | 1953-1959 | ||||
| West end: |  Route 93 in Kapolei, HI |
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| Major junctions: |
 H-2 in Pearl City, HI H-3 in Halawa, HI |
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| East end: |  Route 72 in Honolulu, HI |
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Interstate H-1 (abbreviated H-1) is the busiest interstate highway in Hawaii, United States, located on the island of O‘ahu. 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. H-1 goes from Kapolei at Hawai‘i State Rte. 93 (Farrington Highway) to Kāhala at State Rte. 72 (Kalanianaole 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. It is the westernmost interstate highway in the United States.
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[edit] Route description
Interstate H-1 begins near the Campbell Industrial Park in the town of Kapolei, Hawaii. West of this point, Hawaii state route 93 (Farrington Highway) continues toward Waianae. The freeway continues east, passing the community of Makakilo until reaching the junction with state routes 750 (north to Kunia) and 76 (south to Ewa Beach).
H-1 then continues along the northern edge of Waipahu approximately 3 miles until its junction with Interstate H-2. It then continues east through the towns of Pearl City and Aiea for approximately 5 miles to the complex Halawa Interchange, where it meets Interstates H-3 and H-201. The highway then turns south for two miles, then east soon after the exits for Hickam Air Force Base and Pearl Harbor. At this point, the highway runs along a viaduct above state route 92 (Nimitz Highway), passing to the north of Honolulu International Airport.
Two miles past the airport exit, three lanes exit the freeway at exit 18A to join Nimitz Highway toward Waikiki, while the remaining two lanes make an S-curve to join the east end of Interstate H-201. From here H-1 runs through the city of Honolulu along a series of underpasses and viaducts. H-1 ends in the Kahala district of Honolulu near Kahala Mall, where state route 72 (Kalanianaole Highway) ends.
[edit] Major cities
Bolded cities are officially-designated control cities for signs.
[edit] History
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.
[edit] Major intersections
- Interstate H-2 in Pearl City, Hawaii
- Interstate H-201 in Hālawa, Hawaii
- Interstate H-3 in Hālawa, Hawaii
- Interstate H-201 in Honolulu, Hawaii
[edit] 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.
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Auxiliary routes of Interstate H1 | |
| Current and Future (F) | Former | |
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Hawaii | |
[edit] References
- ^ Route Log - Main Routes of the Eisenhower National System Of Interstate and Defense Highways - Table 1
[edit] External links
| Main Interstate Highways (multiples of 5 in pink) |  |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 5 | 8 | 10 | 12 | 15 | 16 | 17 | 19 | 20 | 22 | 24 | 25 | 26 | 27 | 29 | 30 |
| 35 | 37 | 39 | 40 | 43 | 44 | 45 | 49 | 55 | 57 | 59 | 64 | 65 | 66 | 66 (W) | 68 | |
| 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 (W) | 76 (E) | 77 | 78 | 79 | 80 | 81 | 82 | ||
| 83 | 84 (W) | 84 (E) | 85 | 86 (W) | 86 (E) | 87 | 88 (W) | 88 (E) | 89 | 90 | ||||||
| 91 | 93 | 94 | 95 | 96 | 97 | 99 | (238) | H-1 | H-2 | H-3 | ||||||
| Unsigned | A-1 | A-2 | A-3 | A-4 | PRI-1 | PRI-2 | PRI-3 | |||||||||
| Lists | Main - Auxiliary - Suffixed - Business - Proposed - Unsigned Gaps - Intrastate - Interstate standards - Replaced |
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