Applicability. This Section shall apply to all lands within the jurisdiction of the City of Parkville, Missouri identified as numbered and unnumbered A Zones and AE Zones on the Flood Insurance Rate Maps (FIRMs) for Platte County listed on Map Panels 29165C0295D, 29165C0313D, 29165C0360D, 29165C0370D, 29165C0376D, 29165C0377D, 29165C0378D, 29165C0379D, 29165C0383D, 29165C0386D, 29165C0387D, 29165C0391D, and 29165C0392D, dated April 2, 2015, and including future official revisions.
1.
Floodplain Administrator. The Community Development Director shall be the Floodplain Administrator under this Section. The Floodplain Administrator shall review all permits for compliance with this Section and assure that all necessary permits have been obtained from Federal, State or local governmental agencies from which prior approval is required by Federal, State or local law.
2.
Flood Insurance Study. The Flood Insurance Study (FIS) and standard engineering methods are used for analyzing flood hazards, including the following interrelated steps:
a.
Selection of base flood based on expected frequency of occurrence, the area inundated, and the depth of inundation. In general, it is the flood which could be expected to have a one-percent chance of occurrence in any one (1) year as shown on the Federal Insurance Administrator's FIS, and illustrative materials for Platte County dated April 2, 2015, as amended.
b.
Calculation of water surface profiles based on standard hydraulic engineering analysis and capacity of the stream channel and overbank areas to convey the regulatory flood.
c.
Computation of a floodway required to convey this flood without increasing flood heights more than one (1) foot at any point.
d.
Delineation of floodway encroachment lines within which no development is permitted that would cause any increase in flood height.
e.
Delineation of flood fringe, i.e., that area outside the floodway encroachment lines, but still subject to inundation by the base flood.
3.
Permit Required. No development located within the special flood hazard areas of this community shall be located, constructed, extended, converted or structurally altered without a permit demonstrating full compliance with the terms of this Section.
4.
Permit Procedures. In association with other procedures in Chapter 403, a floodplain development permit shall:
a.
Describe the land on which the proposed work is to be done by lot, block and tract, house and street address, or similar description that will readily identify and specifically locate the proposed structure or work;
b.
Identify and describe the work to be covered by the floodplain development permit;
c.
Indicate the use or occupancy for which the proposed work is intended;
d.
Indicate the assessed value of the structure and the fair market value of the improvement;
e.
Specify whether development is located in the designated flood fringe or floodway;
f.
Identify the existing base flood elevation and the elevation of the proposed development;
g.
Give such other information as reasonably may be required by the Floodplain Administrator;
h.
Be accompanied by plans and specifications for proposed construction; and
i.
Be signed by the permittee or his authorized agent who may be required to submit evidence to indicate such authority.
5.
Review Criteria. In applying the standards of this Section, the Floodplain Administrator shall verify that:
a.
The flood-carrying capacity is not diminished and shall be maintained within the altered or relocated portion of any watercourse;
b.
A record of the actual elevation (in relation to mean sea level) of the lowest floor, including basement, of all new or substantially improved structures;
c.
A record of the actual elevation (in relation to mean sea level) that the new or substantially improved non-residential structures have been floodproofed;
d.
Floodproofing techniques for non-residential structures shall be certified by a registered professional engineer or architect; and
e.
Notification by the applicant of adjacent communities and the Missouri State Emergency Management Agency (Mo SEMA) shall be required prior to any alteration or relocation of a watercourse and evidence of this notice shall be given to the Federal Emergency Management Agency (FEMA).
6.
Warning And Disclaimer Of Liability. The degree of flood protection required by this Section is considered reasonable for regulatory purposes and is based on engineering and scientific methods of study. Larger floods may occur on rare occasions or the flood heights may be increased by man-made or natural causes, such as ice jams and bridge openings restricted by debris. This Section does not imply that areas outside the floodway and flood fringe or land uses permitted within these areas will be free from flooding or flood damage. This Section shall not create a liability on the part of the City of Parkville, any officer or employee for any flood damages that may result from decisions or actions in reliance on this Section.