HomeMy WebLinkAboutExhibit L_v1.pdfFLOOD1UUN MANAGEMENT § 27-16
(B) The certification of lowest floor elevation;
(C) The certification of floodproofing for spaces below the base flood elevation;
(D) The certification of final pad elevation where n site is filled above the base
flood elevation;
(E) The certification that an encroachment in the floodway will not result in
any increase in flood levels during base flood discharge; and
(I) The certification of elevation and structural support for structures in the
coastal high hazard area.
(3) Notification of actions that may alter the boundaries of flood hazard areas on
Federal Emergency Management Agency Flood Insurance Rate Maps.
(A) The floodplain administrator shall notify the council of the following
actions when they relate to areas located within Hawaii County:
(i) A Federal Emergency Management Agency initiated map study or
restudy of flood hazard areas;
(ii) A floodplain administrator initiated map revision process, pursuant
to part 65 of the National Flood Insurance Program Regulations; and
(iii) A floodplain administrator initiated map revision process, pursuant
to a Federal Emergency Management Agency Cooperative Technical
Partners Initiative.
(B) Notification shall consist of a written message from the floodplain
administrator to the County council and shall be submitted to the County
council as soon as practical, but no litter than sixty days after the date the
department of the floodplain administrator initiates any of the actions
described in paragraph (3)(A) of this section. Notification shall include,
but not be limited to:
(i) Identification of the stream or general area being studied or revised;
and
(ii) The name of the entity undertaking the flood mapping study,
restudy, or revision process.
(4) Interpretation of maps.
The floodplain administrator shall make interpretations where needed, as to
the exact location of the boundaries of the areas of special flood hazards (for
example, where there appears to be it conflict between a mapped boundary and
actual field conditions). A person contesting the location of the boundary shall
be given a reasonable opportunity to appeal the interpretation as provided in
article 5.
(5) Initiating changes in base flood elevations.
Whenever base flood elevations increase or decrease or result in a mappable
alteration of the boundaries of any special flood hazard area, as a result of
physical changes affecting flooding conditions, its soon as practical, but no
litter than six months after the date such information becomes available, the
floodplain administrator shall notify the Federal Emergency Management
Agency of the changes by submitting technical or scientific data through the
Letter of Map Revision process. Such it submission is necessary so that upon
27-15 SUPP. 4 (7.2018)
§ 27-16 HAWAII COUNTY CODE
confirmation of those physical changes affecting flooding conditions, risk
premium rates and floodplain management requirements will be based upon
current data.
(6) Using other base flood data.
When base flood elevation data has not been provided in accordance with
section 27-6, the floodplain administrator shall obtain, review, and reasonably
utilize any base flood elevation and floodway data available from a Federal or
State agency, or other source, in order to administer article 4. Any such
information shall be submitted to the floodplain administrator for
consideration.
(7) Whenever a watercourse is to be altered or relocated:
(A) Require that the flood carrying capacity of the altered or relocated portion
of said watercourse is maintained;
(B) For riverine situations, notify the State of Hawaii department of land and
natural resources (commission on water resource management) and all
adjacent property owners, prior to such alteration or relocation of a
watercourse, and submit evidence of such notification to the Federal
Emergency Management Agency; and
(C) Whenever a proposed alteration or relocation occurs that would
significantly change the base flood elevation or result in a mappable
alteration of the boundaries of any special flood hazard area, technical
and scientific data through the Conditional Letter of Map Revision shall
be submitted to and approved by the Federal Emergency Management
Agency. Such a submission is necessary so that upon completion of those
physical changes affecting flooding conditions, risk premium rates and
floodplain management requirements will be based upon current data.
Work to be performed under an approved Conditional Letter of Map
Revision shall be subject to the following:
(i) Work shall not begin on any on -site development affecting or
impacting the floodplain until an approved Conditional Letter of Map
Revision is received from the Federal Emergency Management
Agency; and
(ii) Within sixty days of receiving final approval from the floodplain
administrator for the completion of the alteration or relocation of a
watercourse, the request for a Letter of Map Revision, and all other
information required by the Letter of Map Revision process shall be
submitted to the Federal Emergency Management Agency.
(8) Violations.
Take action to remedy violations of this chapter as specified in article 6.
(1993, ord 93-78, sec 3; am 2001, ord 01-108, sec 1; am 2007, ord 07-169, sec 9; am 2017,
ord 17-56, sec 8; am 2018, ord 18-25, sec 3.)
SUPP.4 (7-2018) 27-16