HCC §27-25
Rules for building near drainage facilities
Read the official text at hawaiicounty.gov ↗This section says that new buildings or major improvements next to drainage facilities outside flood zones need approval from the public works director. The director can ask for more information, like flood studies or drainage reports, to check flood risk. You cannot change the drainage facility without approval.
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The ordinance, as written (Hawaiʻi County) — Standards for improvements adjacent to drainage facilities
A copy, taken August 21, 2026. The version published by Hawaiʻi County is the one that governs, and it may have changed since. Check it before relying on anything here.
New construction, improvements to repetitive loss structures, and substantial improvements proposed adjacent to drainage facilities outside of the special flood hazard areas identified on the Flood Insurance Rate Maps shall be subject to review and approval of the director of public works. (a) Upon request by the director of public works, further information concerning base flood elevation, floodways, surface water runoff, existing and proposed drainage patterns, and other information, including a detailed flood elevation study, drainage report, and findings and opinions by a licensed professional civil engineer, shall be provided to evaluate potential flooding. (b) The director of public works shall determine the applicability of the various development and construction standards provided in this chapter based upon information available from a Federal, State, or other source, including information provided by the permit applicant. (c) A drainage facility shall not be modified, constructed, lined, or altered in any way to accommodate the improvement without the approval of the director of public works. (1993, ord 93-78, sec 3; am 2001, ord 01-108, sec 1; am 2007, ord 07-169, sec 16.)27-25
Published by the County of Hawaiʻi Office of the County Clerk.
LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.