MAKAWAO – The leaking, redwood Waikamoi flume would be replaced with an aluminum channel supported by an aluminum truss along its entire 1.1-mile length, retaining precious surface water for drought-plagued Upcountry residents and providing a safe working platform for employees of the Department of Water Supply.
The flume channels water from the Haipuaena Stream to the vicinity of Waikamoi Stream and eventually into the water department’s upper Kula system, which supplies water to residents of Kula, Waiakoa, Keokea, Ulupalakua and Kanaio.
The $10 million to $15 million flume replacement project, which is pending necessary approvals, is expected to begin in the last quarter of this year and take about two years go complete, according to plans submitted to the state Office of Environmental Quality Control.
The office published the department’s draft environmental assessment and anticipated finding of no significant impact last week in its current issue of The Environmental Notice. It is available online at oeqc.doh.hawaii.gov/Shared%Documents/Environmental_Notice/current_issue.pdf.
Public comments are due June 22.
Maui County Council Member Joe Pontanilla, chairman of the council’s Budget and Finance Committee, said Saturday that more than $10 million has been appropriated for the flume replacement project in the current county budget.
Located in the Koolau Forest Reserve, the flume was originally built in the 1930s out of redwood timbers and rock and concrete masonry foundations, according to the draft environmental assessment. In 1974 and 1975, the flume box was replaced with redwood planking, although portions of the timber bridges that were built in the 1930s were kept in place. Continue reading