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HDR: Kenai bluff‑stabilization construction complete; monitoring, vegetation expected to show stability in 1–2 years
Summary
HDR engineering told the Kenai City Council that construction of a roughly 4,700‑foot bluff‑stabilization berm finished in October, placing more than 60,000 cubic yards of rock; engineers said the structure protects the bluff toe from episodic wave/ice events, but long‑term bluff retreat due to chronic processes will require vegetation and monitoring.
Ronnie McPherson of HDR Engineering updated the Kenai City Council Dec. 3 on the bluff‑stabilization project and described construction, performance expectations and monitoring plans.
McPherson said construction—completed Oct. 11—used a barge‑based method to place about 26,500 cubic yards of armor rock and roughly 36,000 cubic yards of core and bedding rock along about 4,700 linear feet of bluff from Cemetery Creek upstream. The armor, bedding and a…
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