Kalanianaʻole Highway

Kalanianaʻole Highway
Name	Kalanianaʻole Highway
Native name	Alanui Kalanianaʻole
Type	State highway
Route	72
Length mi	17.0
Direction a	West
Terminus a	Ala Moana Center intersection
Direction b	East
Terminus b	Haleiwa — note: eastern terminus near Hanauma Bay
Location	Oʻahu, Honolulu County, Hawaiʻi

Kalanianaʻole Highway Kalanianaʻole Highway is a major arterial roadway on the island of Oʻahu in Hawaiʻi that runs along the southeastern and windward coasts between urban Honolulu and communities near Makapuʻu Point, Hanauma Bay, and the eastern shore. The route connects commercial centers, residential neighborhoods, and recreational sites, serving local traffic, commuter flows to Downtown Honolulu, and access to state parks, beaches, and educational institutions such as University of Hawaiʻi at Mānoa. The highway forms part of the island’s transport network linking to corridors like Interstate H-1, Pali Highway (Route 61), and Fort Weaver Road.

Route description

The highway begins near central Honolulu and proceeds eastward through neighborhoods including Kaimukī, Hawaii Kai, and ʻAina Haina, paralleling coastal features such as Diamond Head, Maunalua Bay, and Koko Head. It provides access to landmarks like Ala Moana Center, Kapiʻolani Park, Honolulu Zoo, Hanauma Bay Nature Preserve, and Makapuʻu Point Light. Along the corridor the road intersects major routes including Interstate H-1, Pūʻōhala Street, and Kalanianaʻole Expressway connections, and links to local streets serving communities such as Kāhala, Waialae Iki, Hālawa, and Waimanalo. The alignment includes multi-lane segments, signalized intersections, roundabouts near developments like Hawaii Kai Towne Center, and scenic overlooks providing views toward Kaneohe Bay and the Koʻolau Range.

History

The roadway follows precontact and nineteenth-century paths used by Native Hawaiian communities linking fishponds, heiau, and trails that connected ʻEwa to windward settlements like Kaneohe. During the Kingdom of Hawaiʻi era and the subsequent Territory of Hawaiʻi period, road improvements were undertaken to serve plantations, military facilities such as Fort Ruger, and burgeoning residential developments associated with families like the Dole and institutions such as Bishop Museum. Mid-twentieth-century expansion paralleled the growth of Naval Station Pearl Harbor support activities and the post‑World War II suburbanization that produced neighborhoods served by routes including Ala Moana Boulevard and Nimitz Highway. Later state projects in the Hawaiʻi Department of Transportation era addressed coastal erosion, stormwater drainage influenced by projects tied to Coral Reef protection, and upgrades for events hosted by organizations such as Hawaiʻi Tourism Authority and Honolulu Authority for Rapid Transportation.

Major intersections

Key junctions along the corridor include the interchange with Interstate H-1 near central Honolulu, connections to Ala Moana Center via arterials that serve Ward Village and Magic Island, intersection with Kaimukī collectors serving Kapiʻolani Community College and Diamond Head State Monument, junctions providing access to Hanauma Bay and Makapuʻu Beach, links to Fort Ruger Road, and crossings near ʻEwa–windward connectors that tie into routes serving Kaneohe Bay marinas and commercial centers such as Kahala Mall and Hawaii Kai Towne Center. Intersections with local roads provide transfers to bus corridors operated by entities like TheBus and access to emergency services at facilities such as Straub Medical Center and Pali Momi Medical Center.

Traffic and safety

Traffic volumes vary seasonally with surges during tourism peaks associated with events at Aloha Stadium, holiday periods connected to Merrie Monarch Festival-related travel patterns, and weekend recreational trips to beaches including Hanauma Bay and Makapuʻu Beach Park. Congestion hotspots frequently appear near Ala Moana Center and the Hawaii Kai commercial district; safety concerns have prompted measures addressing collisions near coastal ruts, pedestrian crossings used by visitors to Diamond Head State Monument, and bicycle access sought by advocates including Hawaiʻi Bicycling League. Countermeasures implemented over time involve speed limit adjustments influenced by Hawaiʻi Revised Statutes, installation of traffic-calming improvements supported by Honolulu Department of Transportation Services, and coordination with first responders from agencies like Honolulu Police Department and Hawaii Emergency Management Agency.

Public transportation and services

The corridor is served by bus routes operated by TheBus linking to hubs such as Ala Moana Center, Downtown Honolulu, and transfer points for Honolulu Rail Transit connections. Park-and-ride lots, shuttle services for attractions like Hanauma Bay Nature Preserve operated in coordination with the Division of State Parks, and private tour operators affiliated with companies such as Hawaii Visitors and Convention Bureau offer access for tourists. Utilities and maintenance along the route involve coordination with Hawaiian Electric Industries, Board of Water Supply, City and County of Honolulu, and Hawaiʻi Department of Transportation for resurfacing, signal timing, and emergency response routing.

Cultural and environmental significance

The highway traverses areas rich in Native Hawaiian cultural sites, traditional fisheries like the Kāneʻohe Fishponds, and historic landmarks tied to families and institutions such as Queen Liliʻuokalani-era sites and the Bishop Estate (Kamehameha Schools). Coastal ecosystems adjacent to the route include coral reefs protected under initiatives by NOAA, marine sanctuaries recognized by Hawaiʻi State Division of Aquatic Resources, and restoration projects involving organizations like The Nature Conservancy and Hawaii Marine Animal Response. Environmental challenges include shoreline change studied by researchers at University of Hawaiʻi Sea Grant and conservation planning undertaken by Office of Planning, State of Hawaiʻi and local community groups such as Hawaii Kai Neighborhood Board and Kailua Community Association.

Category:Roads in Honolulu County, Hawaii