Part 1; the history of Hawaii Route 3800
Phase 1 construction of the Kahului Airport Access Road began on November 8, 2013. The Kahului Airport Access Road was intended to supplement existing Hawaii Route 36A on Keolani Place as the primary access to Kahului Airport. The Kahului Airport Access Road was planned as an expressway by the Airport Division of the Hawaii Department of Transportation. Phase 1 of the Kahului Airport Access Road consisted of 1.1-miles of new roadway which was paid for by way of an 80% Federal/20% State split in funding. Phase 2 of the Kahului Airport Extension Road was slated to begin during 2014. Phase 2 of the Kahului Airport Extension Road included construction of the Lanui Loop at the Kahului Airport Terminal. Kahului Airport Extension Road was assigned the designation of Hawaii Route 3800.