HONOLULU — The Honolulu Authority for Rapid Transportation has authorized Nan Inc. to proceed with the so-called “mauka shift,” relocating utility infrastructure along Dillingham Boulevard in an effort to save money and create enough space to accommodate the rail line without having to move above-ground power lines.

What You Need To Know

  • The $496.3 million project was awarded to Nan Inc.  in August

  • Major utility infrastructure will be relocated along Dillingham Boulevard from the corner of Kamehameha Highway and Laumaka Street to the corner of Dillingham Boulevard and Kaaahi Street

  • Construction is expected to start before the end of the year, a few months earlier than expected, and continue until the first quarter of 2026

  • Multiple construction sites will be active at the same time and both daytime and nighttime work is expected; for some aspects of the project, all-day/all-night work will be required

The $496.3 million project, which was awarded to Nan in August, involves moving major utilities infrastructure along Dillingham Boulevard from the corner of Kamehameha Highway and Laumaka Street to the corner of Dillingham Boulevard and Kaaahi Street.

Construction is expected to start before the end of the year, a few months earlier than expected, and continue until the first quarter of 2026.

According to HART, the relocation will involve infrastructure for storm drainage, sanitary sewer, water main, gas/fuel, electrical and communications. It will also include road improvements, traffic signal systems, street lighting and service reconnections.

Multiple construction sites will be active at the same time and both daytime and nighttime work is expected. For some aspects of the project, all-day/all-night work will be required.

The project will also require certain traffic lanes and sidewalks to be temporarily closed and on-street parking in some areas temporarily unavailable.

Nan will host virtual informational community meetings each month. For updates on upcoming meetings or traffic information, visit honolulutransit.org.

Michael Tsai covers local and state politics for Spectrum News Hawaii.