Interstate H201 and Route 78
Interstate H-201 (formerly Hawaii Route 78) is a short, 4.7 mile loop freeway between I-H1 and I-H3 at the Halawa Interchange, and I-H1 at Middle Street. Originally part of Moanalua Road, the road was upgraded in stretches during the 1980's to a limited access freeway.
The oldest limited access section of I-H201 was built as part of Route 72 in 1959-1960, between the Kahauiki Interchange with the eventual I-H1 west to Puuloa Street at Moanalua Gardens. When Route 72 was renumbered to Interstate H1, the orphaned section of Route 72 became Route 78.
I-H201 was included in the Interstate Highway system in 1989, but remained signed as Route 78 until 2004. I-H201 primarily serves the communities of Moanalua, Salt Lake and Fort Shafter. However, most local drivers use it as a shortcut to the longer Interstate H1 between Waikiki and Ewa.
East
Beginning at a wye interchange with Route 99 (Kamehameha Highway) south at Aiea, Route 78 runs east along the Moanalua Freeway directly into a directional cloverleaf interchange (Exit 1 A) with I-H1 and I-H201 east.
02/05/24
East
A ramp from Route 99 north (Kamehameha Highway) merges with Route 78 one quarter mile from Exit 1 A to I-H1 east. I-H201 commences ahead on a 4.7 mile course along the Moanalua Freeway.
02/05/24
Passing north of Aloha Stadium, I-H201 (former Route 78) reaches Exit 1 A for I-H1 east to Joint Base PHH (Pearl Harbor-Hickam) and Honolulu International Airport (HNL). I-H201 continues along the Moanalua Freeway toward Honolulu while Exit 1 C connects with I-H3 (John A Burns Freeway) to Kaneohe.
02/05/24
Exit 1 B joins Interstate H201 (Moanalua Freeway) east with Kahuapaani Street south to Foster Village and Aloha Stadium. Kahuapaani Street ties into Salt Lake Boulevard by Halawa.
02/05/24
Kahuapaani Street (Route 7241) leads southwest from I-H201 (Moanalua Freeway) to the southern parking lots for Aloha Stadium. Until 2017, the venue was home to the NFL Pro Bowl.
Kahuappahi Street continues north to Halawa Heights Road and Ulune Street.
02/05/24
Salt Lake Boulevard west to Route 99 serves as the connection to the Pearl Harbor area.
08/09/10
Exit 1 C loops onto Interstate H3 (John A. Burns Freeway) east to Kanehoe.
02/05/24
I-H3 provides one of three routes across the Koolau Range between Honolulu and Kanehoe. Variable message signs for the freeway indicate closures due to inclement weather. A split diamond interchange (Exit 2) joins I-H201 with Red Hill and Aliamanu Military Reservation next.
02/05/24
Interstate H3 originates at the Halawa Interchange with I-H1 east of Aloha Stadium.
02/05/24
A frontage road system (Moanalua Road) lines I-H201 between Aliamanu Drive and Ala Napunani Street. Red Hill Naval Reservation lies to the north. Moanulua Valley follows to the east via Ala Aolani Street.
02/04/24
The only mainline confirming marker for Interstate H201 east is posted beyond the on-ramp from Ala Napunani Street.
02/04/24
Exit 3 joins Interstate H201 (Moanalua Freeway) with Route 7310 (Jarrett White Road) leading north to Tripler Army Medical Center.
02/04/24
Route 7310 follows Puuloa Road south from Exit 3 to Salt Lake Boulevard (Route 7311).
02/04/24
Puuloa Road ties in from Route 92 (Nimitz Highway) east of Honolulu International Airport (HNL).
02/04/24
A parclo interchange joins I-H201 with Funston Road at Fort Shafter.
02/04/24
A collector distributor roadway follows the Moanalua Freeway east to a ramp with N King Street at Middle Street.
02/04/24
Passing under Middle Street, I-H201 and the Moanalua Freeway conclude as I-H1 returns, overtaking the Lunalilo Freeway eastward toward central Honolulu.
02/04/24
West
Interstate H-201 leaves from the Kahauiki Interchange with I-H1 (Lunalilo Freeway) west ahead of a slip ramp (Exit 19) to Kaua Street.
08/15/19
I-H1 shifts westward from the Lunalilo Freeway at I-H201 onto the Queen Liliuokalani Freeway to HNL Airport.
02/05/24
The Kahauiki Interchange predates the completion of I-H1 between the Nimitz Highway viaduct and I-H201/Route 78 in 1986.
08/15/19
Interstate H1 west passes above I-H201 (Moanalua Freeway) and below Middle Street. Exit 4 departs in a quarter mile for parallel Kaua Street to Fort Shafter.
02/05/24
Exit 4 leaves Interstate H-201 for Kaua Street to Fort Shafter and Kikowaena Street (Route 7341) to Ahua Street.
02/05/24
Puuloa Road (former Route 66) ties into a diamond interchange (Exit 3) with I-H201 from the south. Puuloa Road connects Jarrett White Road and the Moanalua Freeway with Route 92 (Nimitz Highway) east of Honolulu International Airport (HNL).
02/05/24
Route 7310 (Jarrett White Road) connects Exit 3 with Tripler Army Medical Center to the north.
02/05/24
A short collector distributor roadway lines Interstate H201 west between the Kaua Street entrance ramp and Exit 3 to Puuloa Road (Route 7310) and Jarrett White Road (Route 7345) north.
02/05/24
Continuing northwest along Interstate H201, the succeeding exit is a split diamond interchange connecting to Ala Aolani Street and Ala Napunani Street.
02/05/24
Ala Aolani Street travels north to Moanalua Valley while Ala Napunani Street heads south to Salt Lake Boulevard. Moanalua Road continues west along a frontage road system to Ala Kapuna Street.
Interstate H-3 joins I-H201 with Kaneohe and Marine Corps Base Hawaii (MCBH) in one mile.
02/05/24
I-H201 turns west by Red Hill toward I-H3 (John A. Burns Freeway) and the Halawa Interchange with I-H1 and Route 78. The majority of traffic exits to I-H1, with some continuing north on I-H3.
02/05/24
Exits 1 D/E partition for Interstate H3 eastbound to Kanehoe and Ulune Street (Route 7239) west to Kahaupaani Street (Route 7241) south.
02/05/24
Exit 1 E serves Halawa with connections to Camp HM Smith and Halawa Heights via Halawa Heights Road. Interstate H3 travels northeast from Exit 1 D into Halawa Valley en route to the Tetsuo Harano Tunnels spanning the Koolau Range.
02/05/24
Interstate H3 (John A. Burns Freeway) travels 15.32 miles north from the Halawa Interchange to MCBH Kanoehoe Bay near Kailua.
02/05/24
Exit 1 E ties into Ulune Street ahead of the intersection with Kahuapaani Street. Kahuapaani Street leads southwest to Salt Lake Boulevard near Aloha Stadium. Ulune street parallels Interstate H1 west toward the Aeia area.
08/09/10
I-H201 continues west to a directional cloverleaf interchange with Interstate H1. Exit 1 C joins I-H1 west to Pearl City and Waipahu while the Moanalua Freeway extends 0.74 miles beyond I-H1 as Route 78 to Route 99 (Kamehameha Highway) and Aiea.
02/05/24
I-H1 west connects with I-H2 north 4.7 miles beyond Exit 1 C. These trailblazers stand within the parclo A2 interchange at Ulune Street and Kahuapaani Street..
02/05/24
A loop ramp from Kahuapaani Street adds traffic to Exit 1 C for I-H1 westbound. There is no access from the Moanalua Freeway west to Interstate H1 east.
02/05/24
West
The final exit from the Moanalua Freeway joins Route 78 with Moanalua Road west to Aiea, Pearlridge and Waiau.
02/05/24
Route 78 (Moanalua Road) defaults onto Route 99 (Kamehameha Highway) west to Pearlridge and Pearl City. Moanalua Road meanders on a parallel course to Kamehameha Highway from Aiea to Pearlridge and Interstate H1 at Exit 10.
02/05/24
An access road joins Moanualua Road south with Route 99 east (Kamehameha Highway) to the Pearl Harbor National Memorial.
02/05/24
The unnumbered exit for Moanalua Road departs from Route 78 at a pedestrian bridge to Aloha Stadium. Forthcoming Route 99 (Kamehameha Highway) constitutes a commercial arterial from Aiea west through Pearl City.
02/05/24
Aiea Access Road spans Route 78 south from Moanalua Road to a wye interchange with Kamehameha Highway south to Aloha Stadium and Joint Base Pearl Harbor-Hickam.
08/15/19
Route 78 concludes at a wye interchange with Route 99 (Kamehameha Highway) at Laulima Street (former Route 72) and below the Skyline light rail line.
08/15/19
scenes
The Moanalua Road service roads accompany I-H201 between Ala Napuani Street (Route 7349) and Ala Kapuna Street.
08/15/19
Kahuapaani Street (Route 7241) heads south from the Halawa Heights community to meet I-H201 adjacent to the Halawa Interchange with I-H1.
08/18/19
The entrance ramp for I-H1 westbound loops away from Ulune Street (Route 7239) east of Kahuapaani Street.
08/18/19
A loop ramp connects Kahuapaani Street south with I-H201 (Moanaula Freeway) eastbound directly beyond Ulune Street. I-H201 links with I-H3 east to Kaneohe at the succeeding exit.
08/18/19
Ulune Street parallels I-H1 northwest to Aiea and IH-201 east to Halawa Valley Street to Halawa Valley.
08/18/19
Ulune Street curves southeast from Pohue Street to Kahuapaani Street and a parclo A2 interchange with Interstate H201.
08/18/19
The exchange joining Kahuapaani Street with the Moanula Freeway lies between the exchanges joining I-H201 with I-H1 and I-H3.
08/18/19
Kahuapaani Street north becomes Halawa Heights Road en route to Camp H.M. Smith. South from Ulune Street and I-H201, Kahuapaani Street (Route 7241) heads 0.88 miles to Salt Lake Boulevard (Route 7311) near Aloha Stadium.
08/18/19
The last set of trailblazers posted along Ulune Street east at Kahuapaani Street.
08/18/19
Trailblazers for I-H3/H201 east posted along Ulune Street west at Kahuapaani Street.
08/09/10
Kahuapaani Street south at the entrance ramp for Interstate H201 (Moanalua Freeway) east to I-H3 and Honolulu.
08/18/19
Photo Credits:
- Brent Ivy: 02/04/24, 02/05/24
- Larry Epstein: 08/09/10
- Andy Field: 08/15/19, 08/18/19
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Page Updated Sunday February 11, 2024.