Highways

LĪHUʻE, Hawaiʻi – The Hawaiʻi Department of Transportation (HDOT) notifies highway users of a single lane closure on Kaumualiʻi Highway (Route 50) for emergency guardrail repair between mile post 5.4 to 5.6 near Kāhili Road on Tuesday, September 30, from 8:30 a.m. to 2:30 p.m. Alternating traffic will be routed through the open lane.   ...
Read More Emergency guardrail repair on Kaumualiʻi Highway on Tuesday, September 30

KAHULUI, Hawai‘i – The Hawai‘i Department of Transportation (HDOT) announces that the Final Environmental Impact Statement (FEIS) for the Honoapi‘ilani Highway Improvements Project has been published in the Federal Register and the state’s Environmental Notice. The complete FEIS can be found on the Environmental Protection Agency site here and the state FEIS can be found ...
Read More Final Environmental Impact Statement released for Honoapi‘ilani Highway Improvements Project

HONOLULU – The Hawaiʻi Department of Transportation (HDOT) notifies the public of daytime work on the Wai‘alae Viaduct of the H-1 Freeway for seismic retrofits along the median.  Work will occur on weekdays on Monday, Sept. 29 through Friday, Oct. 3 from 8:30 a.m. to 2 p.m. One left lane in each direction will be ...
Read More Daytime single-lane closures on H-1 Wai‘alae Viaduct begin Monday, Sept. 29

HILO, Hawaiʻi – The Hawaiʻi Department of Transportation (HDOT) notifies highway users that improvements to the Hakalau bridge, on Hawaiʻi Belt Road (Route 19) near mile post 15.3, will begin on Thursday, September 25. Work hours will be from 8:30 a.m. to 3 p.m. Monday through Friday.   Lane closures may be necessary during the ...
Read More Hakalau bridge rehabilitation to begin Thursday, September 25

LĪHUʻE, Hawaiʻi — The Hawaiʻi Department of Transportation (HDOT) notifies highway users that slope stabilization at the Waikoko Hairpin turn has been completed, and the required, round-the-clock closure of a single lane is over. The closure affected the makai, Haʻena-bound lane of Kuhio Highway (Route 560) at milepost 4.7 (Waikoko Hairpin Turn) from Thursday, January ...
Read More 24/7 Lane closure at Waikoko Hairpin Turn completed

Update 9/25/25: Overnight striping work has been completed around mile marker 14 on Honoapi‘ilani Highway (Route 30). There will be no further lane closures in the area this week.  Update 9/23/25: There will be no alternating of traffic tonight near mile marker 14 on Honoapi‘ilani Highway (Route 30).  Instead traffic will be shifted and two ...
Read More Update: Traffic to be alternated at night on Honoapi‘ilani Highway for striping work

KAHULUI, Hawai‘i – The Hawai‘i Department of Transportation (HDOT) is notifying motorists that portions of Haleakalā Highway (Route 36A) and Kalā Road, both near Kahului Airport, will be closed for paving work. The closure will be from 10 p.m., Saturday, Sept. 20 to 5 a.m., Sunday, Sept. 21. Haleakalā Highway on the west side of ...
Read More Portions of Haleakalā Highway and Kalā Road near Kahului Airport to be closed overnight for paving

Pilot Will Collect Data on Noise Levels and Origin for Two Years; Will Not Issue Tickets HONOLULU – The Hawai‘i Department of Transportation (HDOT) announces the noise detection pilot authorized in Act 63 (23) will begin on Sept. 15 with installation of a noise detection camera on the H-3 Freeway at the Halekou Interchange (junction ...
Read More Noise camera installations begin September 15

LĪHUʻE, Hawaiʻi – The Hawaiʻi Department of Transportation (HDOT) notifies road users that the work requiring full nighttime closures of Kūhiō Highway (Route 560) between Hanalei Plantation Road and ʻŌhiki Road, has been completed.   The closure, which ran from July 8, 2025 to September 12, 2025 was necessary for the reconstruction of the pavement ...
Read More Full nighttime closure of Kūhiō Highway at Hanalei Hill complete

KAHULUI, Hawai‘i – The Hawai‘i Department of Transportation (HDOT) is notifying highway users that portions of Nāpilihau Street and Honoapi‘ilani Highway (Route 30) near Nāpili Plaza will be closed on Saturday, Sept. 13 as crews will be installing a new traffic signal at the intersection. The 8 a.m. to 6 p.m. closure will involve using ...
Read More Closures on Nāpilihau Street and Honoapi‘ilani Highway Saturday for traffic signal installation