[Ord. No. 202323-014, 10-10-2023]
The Legislature of the State of Missouri has in Section 79.110,
RSMo., delegated the responsibility to local governmental units to
adopt floodplain management regulations designed to protect the health,
safety, and general welfare of the public. Therefore, the Board of
Aldermen of the City of Sparta, Missouri, ordains as follows.
[Ord. No. 202323-014, 10-10-2023]
A. Flood
Losses Resulting From Periodic Inundation. The special flood hazard
areas of the City of Sparta, Missouri, are subject to inundation which
result 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:
1. The cumulative effect of development in any delineated floodplain
causing increases in flood heights and velocities; and
2. The occupancy of flood hazard areas by uses vulnerable to floods,
hazardous to others, inadequately elevated, or otherwise unprotected
from flood damages.
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 given year as delineated on the Federal
Insurance Administration's (FIS), and illustrative materials for Christian
County, dated November 2, 2023, as amended, and any future revisions
hereto.
2. Calculation of water surface profiles 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 flood fringe, i.e., that area outside the floodway
encroachment lines, but still subject to inundation by the base flood.
[Ord. No. 202323-014, 10-10-2023]
A. It is the purpose of this Chapter to promote the public health, safety, and general welfare of the public; to minimize those losses described in Article
I, Section
405.020(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) 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 which 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.