Commission on Water Resource Management

Permit Application Review:

SCAP.6578.2: Stream Channel Alteration Permit Application, Kaneha Reservoir Dam Remediation, Kealia and Anahola Streams, Kapaa, Kauaʻi, Tax Map Key(s): (4) 4-7-001:001; 4-7-002:005
Applicant: Kealia Irrigation Company, Inc.
Landowner: Cornerstone Hawaii Holdings
Project Summary: The project proposes to rehabilitate the Kaneha Reservoir Dam by dewatering the reservoir and diverting flow from the reservoir during construction operations, leveling the embankment crest, removing soft materials from the upstream and downstream embankment shell foundations, re-grading the upstream and downstream slopes of the embankment, relocating the spillway to the right abutment and enlarging it to safely pass the probable maximum flood, sliplining an upstream portion of the existing outlet tunnel with a centralized and grouted HDPE pipe which will transition to a reinforced concrete encased HDPE pipe in the downstream unlined portion of the outlet tunnel, installing a reinforced concrete stilling basin, constructing a new seepage collection system, and installing instrumentation for monitoring purposes. The portion of the project involving work in the stream channel is the outlet tunnel and reinforced concrete stilling basin.
File Size: 3.3 MB
Comment Deadline: May 10, 2026