The Hawaii Department of Transportation announced on May 4 that there will be overnight lane closures on Piʻilani Highway (Route 31) near ʻOhukai Road and Piʻikea Avenue. The closures are scheduled from 8 p.m. on Friday, May 8 to 6 a.m. on Saturday, May 9.
The department said the inner single lane in each direction near ʻOhukai Road will be closed while crews replace delineators. One lane will remain open for through traffic in both directions during this period. The delineators are intended to remind drivers that left turns from the highway onto nearby commercial entryways are not allowed.
In addition, the inner southbound lane at the Wailea side of the intersection with Piʻikea Avenue will also be closed as workers install delineators between the northbound left-turn pocket and the inner southbound lane. This installation is designed to prevent vehicles traveling in the inner southbound lane from encroaching into the northbound left-turn pocket.
All work is weather permitting, and updates or changes to construction schedules can be found on HDOT’s social media pages.
According to the official website, the Hawaii Department of Transportation manages facilities including multiple airports for domestic and international carriers, commercial harbors, and a statewide highway system. The department functions as part of the executive branch of state government according to its official website. It operates across all six major Hawaiian islands with responsibility for 11 commercial service airports, four general aviation airports, nine commercial harbors, and over 2,400 lane miles of highways according to its official website.
The department aims to deliver a safe, efficient, accessible and sustainable transportation system that supports mobility for people and goods while fostering economic growth and quality of life according to its official website. Collaboration with federal agencies such as the Federal Aviation Administration, U.S. Coast Guard and Federal Highway Administration—as well as county planning departments—is also part of HDOT’s operations according to its official website.

