The Honolulu Rail Transit Project is being built in three operating segments:

SKYLINE SEGMENTS 1 & 2 (East Kapolei to Middle Street) //
Skyline Segments 1 and 2 are now open, providing service from East Kapolei to Middle Street.

Skyline is an automated, driverless rail system operating along approximately 15 miles of elevated guideway, with the exception of a 0.6-mile at-grade section at Hālaulani (Leeward Community College) Station. The system includes 13 stations, 19 four-car trains, and a Rail Operations Center.

Skyline is powered by electricity through a third-rail system. The City’s Department of Transportation Services (DTS) is responsible for operating and maintaining Skyline, as well as the City’s bus and paratransit services. The Honolulu Authority for Rapid Transportation (HART) is responsible for the design and construction of the rail system, known as “Skyline.”

SEGMENT 3 (Middle Street to Civic Center) //

Utility Relocations: Utility relocation work along Dillingham Boulevard continues to move forward. Roadway improvements, including road widening and paving, are also ongoing. Utility work along Dillingham Boulevard is expected to be completed by the end of 2026.

The August 2025 groundbreaking for the City Center Guideway and Stations (CCGS), also known as Segment 3, marked the start of the next major phase of work. This phase includes the design and construction of approximately three miles of elevated guideway and six stations: Mokauea (Kalihi), Niuhelewai (Honolulu Community College—Kapālama), Kūwili (Iwilei), Hōlau (Chinatown), Kuloloia (Downtown), and Kaʻākaukukui (Civic Center).

In October 2025, contractor Tutor Perini Corporation began major drilling operations in Iwilei along Kaʻaahi Street and in Downtown Honolulu along Nimitz Highway. In December 2025, the contractor also completed construction of a temporary trestle at Awa Street to support shaft drilling activities in the Nuʻuanu Stream.

With foundation work well underway, construction of the first above-ground column is anticipated by the end of the first quarter of 2026. Throughout 2026, vertical elements of the guideway are expected to emerge along the corridor, with columns rising from newly completed shafts and providing the community with its first look at the future elevated structure in Segment 3.

Segment 3 is currently scheduled to be ready for passenger service in 2031.

As part of the station design process, HART and Tutor Perini Corporation are hosting Neighborhood Design Workshops to gather community input on each of the six future CCGS stations. The first round of workshops for all six stations was completed in November 2025. The second and final round began in December 2025 and will continue through early 2026.

*Construction activities, schedules, and traffic impacts are subject to change.