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Survey crew working on eroded red hardpan terrain on Kahoʻolawe with the ocean and a distant island behind
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Environmental & Specialty

Kahoʻolawe Island Environmental Restoration

Client

State of Hawaiʻi

Location

Kahoʻolawe

Years

1997–ongoing

Scope

Military ordnance support, erosion control, and site remediation

Challenge

The island has no pier, power grid, or water supply. Work also required ordnance clearance and controls for culturally sensitive ground.

Approach

Royal moved equipment and supplies by sea and coordinated earthwork with ordnance-clearance and cultural-monitoring teams.

Result

The work included erosion control, hardpan treatment, and preparation for native restoration.

Erosion-control berms and native plantings across restored hardpan on Kahoʻolawe

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Castle & Cooke Residential Development

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