The Hanalei Refuse Transfer Station will have temporary service changes on December 12, accepting only bagged trash, and will close on December 13 for maintenance. Normal operations resume December 14.

Honolulu's Daniel K. Inouye International Airport is closing Runway 4R nightly for runway improvement work, with late flights rerouted and potential noise increase for nearby residents.

HDOT is repaving Nimitz Highway, causing nighttime lane closures starting December 8, impacting westbound traffic on Kalihi Stream Bridge. Schedule alterations are due to the H-1 Airport Viaduct project and weather conditions.

Hawaii's HDOT adjusts H-1 freeway weekend closure schedules for the Salt Lake Rehabilitation Project, including additional lane closures on select December weekends.

Hawaii's HDOT reschedules traffic signal mast arm installations on Kailua Road, causing brief intermittent closures on Dec. 8-9, with minor delays expected.

Road repairs and traffic-calming features are being installed on Waiehu Beach Road from Dec. 8-12, causing lane closures and potential delays for drivers.

A new EV charging station is being built at Princeville Library on Kaua'i, funded by the NEVI program and managed by HDOT, with construction ongoing until June 2026.

Likelike Highway in Hawaiʻi reopens after repairs on downed utility poles; further streetlight fixing will prompt a temporary lane closure on December 4.

Kauai County announces lane closures on Koolau Road from Dec. 3 to 19, 2025, for repaving work, advising travelers to expect delays and plan accordingly.

Kapaʻa residents will experience inconvenience due to Kawaihau Road utility work throughout December, part of the Kapaʻa Homesteads Tank Project for new water storage tanks and storm drain improvements.

Construction begins on Kapiolani Boulevard, Honolulu, near Isenberg Street, to rehabilitate a culvert, affecting traffic with weekday work and lane closures for about a year.

The Kīlauea Roundabout will undergo permanent striping from Dec 1-12, resulting in detours and the closure of Kolo Road access to Kūhiō Highway on weekdays.

DAGS has begun construction on a new $8 million base yard in Honokaʻa, Hawaii, which will enhance workspace and efficiency for maintaining state facilities.