Interstate H-1
From Wikipedia, the free encyclopedia
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 | ||||
Major junctions: |
H-2 in Pearl City H-201 in Aiea H-3 in Halawa |
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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 Route 93 (Farrington Highway) in Kapolei to Route 72 (Kalanianaole Highway) in Kāhala. 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 Liliʻuokalani 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 SR 750 (north to Kunia) and SR 76 (south to Ewa Beach).[2]
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.[2]
Major cities Bolded cities are officially-designated control cities for signs |
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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.
H-1 has a maximum posted speed limit of 60 mph (100 km/h) west of the Kunia-Ewa-Waipahu interchange; a 55 mph (90 km/h) speed limit for the remaining section running to the airport, and a 50 mph (80 km/h) speed limit on the Lunalilo freeway section that runs within the Honolulu area, with a few 45 mph (73 km/h) sections.
[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. This section has been largely unchanged since its inception and its design suffers from having too many on/off ramps, short distanced on-ramps, and on-ramps that enter the freeway almost immediately before an off-ramp (opposite of current design standards). The 'new' section of H-1 was, however, built to modern freeway standards.
[edit] Exit list
County | Location | Mile[3] | # | Destinations | Notes |
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Honolulu | Kapolei | 0.00 | Route 93 west (Farrington Highway) | Westbound exit and eastbound entrance; west end of H-1 | |
1.12 | 1A | Campbell Industrial Park, Barbers Point Harbor (Route 95) | Signed as exit 1 westbound | ||
1.18 | 1B | Makakilo, Kapolei, Kalaeloa | Eastbound exit and westbound entrance | ||
2.21 | 2 | Makakilo, Kapolei, Kalaeloa (Route 901) | Westbound exit and eastbound entrance | ||
Waipahu | 6.49 | 5 | Route 76 south / Route 750 north – Kunia, Waipahu, Ewa | Signed as exits 5A (south) and 5B (north) westbound | |
8.20 | 7 | Waikele, Waipahu | |||
9.40 | 8 | Route 99 north (Kamehameha Highway) – Waipahu, Pearl City | Eastbound exit and westbound entrance; signed as exits 8A (south) and 8C (north) | ||
9.74 | 8B | H-2 north – Mililani, Wahiawa | Signed as exit 8A westbound | ||
8B | Waipahu (Route 7101) | Westbound exit and eastbound entrance | |||
Pearl City | 11.62 | 10 | Pearlridge, Pearl City, Waimalu | ||
Halawa | 14.20 | 13A | Route 78 west – Aiea, Pearlridge | ||
14.61 | 13B | H-3 east / H-201 east – Kaneohe, Honolulu | Signed as 13A eastbound | ||
13B | Halawa Heights, Aloha Stadium (Route 7241) | Eastbound exit and westbound entrance | |||
Honolulu | 16.65 | 15A | Route 99 west – Arizona Memorial, Aloha Stadium | Westbound exit and eastbound entrance | |
16.85 | 15B | Route 92 west – Hickam AFB, Pearl Harbor | Signed as 15 eastbound | ||
16.06 | 15 | Route 92 east (Nimitz Highway) | Eastbound exit and westbound entrance | ||
17.77 | 16 | Honolulu International Airport | |||
19.60 | 18 | Route 92 west (Nimitz Highway) | Westbound exit and eastbound entrance | ||
19.12 | 18A | Route 92 east (Nimitz Highway) – Waikiki | Eastbound exit and westbound entrance | ||
19.34 | 18B | Middle Street, Dillingham Boulevard (Route 7415) | Eastbound exit and westbound entrance | ||
20.36 | 19A | Middle Street (Route 7415) | Westbound exit only | ||
20.36 | 19B | H-201 west – Fort Shafter, Aiea | Westbound exit and eastbound entrance | ||
20.56 | 20A | Route 63 north (Likelike Highway) | |||
20B | Houghtailing Street | Westbound exit only | |||
20.80 | 20B | Route 98 east (Vineyard Boulevard) | Eastbound exit and westbound entrance | ||
21.35 | 20C | Palama Street | Westbound exit only | ||
21A | School Street | Westbound exit and eastbound entrance | |||
22.31 | 21A | Route 61 (Pali Highway) | Signed as exit 21B westbound | ||
22.77 | 21B | Punchbowl Street | Eastbound exit and westbound entrance | ||
22 | Route 98 west (Vineyard Boulevard) | Westbound exit and eastbound entrance | |||
23.10 | 22 | Kinau Street | Eastbound exit and entrance | ||
23 | Lunalilo Street | No eastbound exit | |||
24.06 | 23 | Punahou Street | Eastbound exit and westbound entrance | ||
25.07 | 24A | Bingham Street | Eastbound exit and westbound entrance | ||
24A | Wilder Avenue | Westbound exit only | |||
25.30 | 24B | University Avenue | |||
25.62 | 25A | King Street - Waikiki, Honolulu Zoo | |||
25B | Kapiolani Boulevard | Westbound exit and eastbound entrance | |||
26.10 | 25B | 6th Avenue | Eastbound exit and westbound entrance | ||
26.83 | 26A | Koko Head Avenue | Eastbound exit and westbound entrance | ||
27.53 | 26B | Waialae Avenue | Signed as exit 26 westbound | ||
28.16 | 27 | Kilauea Avenue | Westbound exit and eastbound entrance | ||
Route 72 east (Kalanianaole Highway) | Eastbound exit and westbound entrance; east end of H-1 |
[edit] Auxiliary routes
- A portion of the Moanalua Freeway is designated as Interstate H-201. Until mid-2004, it was signed as Route 78.
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[edit] References
- ^ Route Log - Main Routes of the Eisenhower National System Of Interstate and Defense Highways - Table 1
- ^ a b Google Maps street maps and USGS topographic maps, accessed December 2007 via ACME Mapper
- ^ Delorme. Street Atlas USA [map], Toggle Measure Tool edition. (2007) Retrieved on 2007-06-03.
[edit] External links
Interstate Highways (multiples of 5 in pink) | Main|||||||||||||||||||
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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 | 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 | Primary | Main - Intrastate - Suffixed - Future - Gaps | |||||||||||||||||
Auxiliary | Main - Future - Unsigned | ||||||||||||||||||
Other | Standards - Business - Bypassed |