H-1 Freeway Pearl City and Waimalu Viaduct Improvements Project Thursday, May 09, 2024 12:50 PM from Department of Transportation HONOLULU – The Hawaiʻi Department of Transportation (HDOT) informs highway users that the H-1 Freeway Improvements Project, from the Halawa Interchange to the H-1/H-2 Split, is anticipated to begin on...