[Ord. No. 1054 Art. 1 §A, 9-11-2002; Ord. No. 1091 §§1 — 3(App. A §460.010), 9-24-2003; Ord. No. 1288, 2-27-2009]
A.
Approval Of Draft Ordinance By Kansas Chief Engineer Prior To Adoption. The following floodplain management regulations, as written, were
approved in draft form by the Chief Engineer of the Division of Water
Resources of the Kansas Department of Agriculture on February 19,
2009.
B.
Kansas Statutory Authorization. The legislature of the State
of Kansas has in K.S.A. 12-741 et seq., and specifically in K.S.A.
12-766, delegated the responsibility to local governmental units to
adopt floodplain management regulations designed to protect the health,
safety and general welfare. Therefore, the City Council of Mission,
Kansas, ordains as follows.
[Ord. No. 1054 Art. 1 §B, 9-11-2002; Ord. No. 1091 §§1 — 3(App. A §460.020), 9-24-2003; Ord. No. 1288, 2-27-2009]
A.
Flood Losses Resulting From Periodic Inundation. The special
flood hazard areas of Mission, Kansas, are subject to inundation which
results in loss of life and property, health and safety hazards, disruption
of commerce and governmental services, extraordinary public expenditures
for flood protection and relief, and impairment of the tax base; all
of which adversely affect the public health, safety and general welfare.
B.
General Causes Of The Flood Losses. These flood losses are
caused by:
C.
Methods Used To Analyze Flood Hazards. The Flood Insurance
Study (FIS) that is the basis of this Chapter uses a standard engineering
method of analyzing flood hazards, which consist of a series of interrelated
steps.
1.
Selection
of a base flood that is based upon engineering calculations which
permit a consideration of such flood factors as its expected frequency
of occurrence, the area inundated, and the depth of inundation. The
base flood selected for this Chapter is representative of large floods
which are characteristic of what can be expected to occur on the particular
streams subject to this Chapter. The base flood is the flood that
is estimated to have a one percent (1%) chance of being equaled or
exceeded in any one (1) year as delineated on the Federal Insurance
Administrator's FIS and illustrative materials dated August 3, 2009,
as amended, and any future revisions thereto.
2.
Calculation
of water surface profiles that are based on a standard hydraulic engineering
analysis of the capacity of the stream channel and overbank areas
to convey the regulatory flood.
3.
Computation
of a floodway required to convey this flood without increasing flood
heights more than one (1) foot at any point.
4.
Delineation
of floodway encroachment lines within which no development is permitted
that would cause any increase in flood height.
5.
Delineation
of floodway fringe, i.e., that area outside the floodway encroachment
lines but still subject to inundation by the base flood.
[Ord. No. 1054 Art. 1 §C, 9-11-2002; Ord. No. 1091 §§1 — 3(App. A §460.030), 9-24-2003; Ord. No. 1288, 2-27-2009]
A.
It is the purpose of this Chapter to promote the public health, safety and general welfare; to minimize those losses described in Article I, Section 460.020(A); to establish or maintain the community's eligibility for participation in the National Flood Insurance Program (NFIP) as defined in 44 Code of Federal Regulations (CFR) 59.22(a)(3); and to meet the requirements of 44 CFR 60.3(d) and K.A.R. 5-44-4 by applying the provisions of this Chapter to:
1.
Restrict
or prohibit uses that are dangerous to health, safety or property
in times of flooding or cause undue increases in flood heights or
velocities;
2.
Require
uses vulnerable to floods, including public facilities that serve
such uses, be provided with flood protection at the time of initial
construction; and
3.
Protect
individuals from buying lands that are unsuited for the intended development
purposes due to the flood hazard.
