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FAQs

What will be done specifically?

This project will:
  • Extend the sixth lane of the H-1 Freeway heading Ewa-bound from the Kaonohi Street overpass in Aiea to the Pearl City/waimalu off-ramp at the Waiau Interchange
  • Restore lane and shoulder widths to meet current design criteria
  • Increase capacity to meet current and future traffic demands
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Why is this project needed?

With the island population shifting to Central and Leeward Oahu, approximately 226,000 VEHICLES use this stretch of H-1 each day, creating a major bottleneck in the afternoon that stretches back to Kalihi. By the year 2022, the number of vehicles using that stretch of H-1 is projected to increase to approximately 283,900 vehicles.

The Waimalu Viaduct was originally constructed in 1969. At the time, the anticipated traffic volume it would carry by the year 1988 was 88,650 vehicles/day. This represents a 320% increase in the originally expected traffic volume.
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How long will the work last?

Construction will run about 18 months from June 2004 through January 2006.

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At what times of the day will the work be done?

While the contractor will be allowed to work around-the-clock along the H-1 viaduct, much of the construction along the freeway will be done overnight to least impact traffic.

Work below in the Waimalu Gardens neighborhood will be done on weekdays from 7 a.m. to 6 p.m. No work will be done below the H-1 in the Waimalu area on the weekends.

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How will the DOT keep us informed about construction hours and scheduled lane closures for the project?

We plan to open up a phone hotline about two weeks before the project begins in June to answer questions and complaints. A similar hotline system was put in place during an 18-month construction project along the H-1 corridor through urban Honolulu from 2000 to 2001. Mailers and fliers will also be distributed to the surrounding Waimalu neighborhood and Central/Leeward Oahu neighborhood boards about the project status. We will also send out press releases to the various media (TV/radio/newspaper) on any lane closures.

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