Trouble in Paradise — Shoreline Erosion Threatens Maui Infrastructure — Problems and Solutions

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by Russell H. Boudreau, Moffatt & Nichol, 3780 Kilroy Airport Way, Long Beach, CA 90806,,
Robert V. Sloop, Moffatt & Nichol, 3780 Kilroy Airport Way, Long Beach, CA 90806,,

Document Type: Proceeding Paper

Part of: Solutions to Coastal Disasters 2008:

Abstract: Moffatt & Nichol (M&N) conducted a shoreline analysis for the Kahului Wastewater Reclamation Facility (WWRF) site, owned and operated by the County of Maui. The facility is located on an eroding sandy beach which was a critical factor in an alternatives analysis for an expansion/relocation evaluation for the County. The purpose of the shoreline study was to quantify shoreline erosion trends, assess potential causes for erosion, estimate the time before the erosion reaches critical facilities, and develop preliminary shoreline protection alternatives. The shoreline erosion rates at the facility can be as high as 6 feet/year, and critical facilities could be threatened within 14 years. Alternatives included no-action, beach nourishment, beach nourishment with sand retention measures, and shore protection.

Subject Headings: Shoreline | Erosion | Infrastructure | Coastal management | Water reclamation | Beach nourishment | Site investigation | Waste sites |

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