HomeMy WebLinkAbout87-18 Amending Article 17-1/2, Title 13, to Clarify Floodproofing Standards in Flood Hazard AreaORDINANCE NO. 87-/R'
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY
OF COSTA MESA, CALIFORNIA, AMENDING ARTICLE
17-1/2, TITLE 13 OF THE COSTA MESA MUNICIPAL
CODE, TO CLARIFY FLOODPROOFING STANDARDS IN
THE FLOOD HAZARD AREA.
The City Council of the City of Costa Mesa does hereby ordain as follows:
SECTION 1: The City Council of the City of Costa Mesa hereby finds
and declares as follows:
A. That the Department of Water Resources (DWR) under contract with
the Federal Emergency Management Agency (FEMA) reviewed the City's Flood-
plain Ordinance and found four sections that were not in canpliance with
National Flood Insurance Program (NFIP) floodplain management criteria.
B. That NFIP criteria require that the City revise its floodplain
management regulations to continue eligibility for participation in NFIP.
Accordingly, the City Council of the City of Costa Mesa herewith
amends Article 17-1/2, Title 13 as hereafter set forth:
SECTION 2: Amend Section 13-2611 Procedures and Development Standards
by adding a requirement that all development proposals be reviewed to assure
that all other required State and Federal permits have been obtained, adding
a requirement that adequate drainage paths be provided for structures on
slopes in zones AH and A0, changing the elevation requirement in zone AO
frau one (1) foot above the crown of the nearest street to two (2) feet above
the highest adjacent grade, and deleting anchoring standards which apply to
resisting wind forces instead of resisting hydraulic forces as follows:
(1)(b) Review the proposed development to assure that all other re-
quired State and Federal permits have been obtained.
(1)(c) Review of all permits to determine that the site is reasonably
safe from flooding.
I
(1)(d) Review of all development permits to determine if the proposed
development adversely affects the flood carrying capacity of the area of
special flood hazard. For purposes of this article, "adversely affects"
means that the cumulative effect of the proposed development when combined
with all other existing and anticipated development will increase the water
surface elevation of the base flood more than one foot at any point.
(4)(d) New construction and substantial improvement of any structure
in Zone AO shall have the lowest floor, including basement, elevated to or
above the depth number specified on the FIRM. If there is no depth number
on the FIRM, the lowest floor, including basement, shall be elevated at
least two feet above the highest adjacent grade. Nonresidential structures
may meet the standards in subsection 13-261(4)(e). Upon completion of the
structure, a registered professional engineer shall certify that the eleva-
tion of the structure meets this standard and such certification shall be
provided to the Development Services Director.
(4)(f) Require adequate drainage paths around structures on slopes
to guide flood waters around and away from proposed structures within
Zones AH and AO.
(7)(a) All manufactured homes and additions to manufactured homes
shall be anchored to resist flotation, collapse, or lateral movement.
SECTION 3.
This Ordinance shall take effect and be in full force thirty (30) days
from and after the passage thereof, and prior to the expiration of fifteen
(15) days from its passage shall be published once in the ORANGE COAST
DAILY PILOT, a newspaper of general circulation, printed and published in
the City of Costa Mesa or, in the alternative, the City Clerk may cause to
be published a summary of this Ordinance and a certified copy of the text
of this Ordinance shall be posted in the office of the City Clerk five (5)
days prior to the date of adoption of this Ordinance, and within fifteen
(15) days after adoption, the City Clerk shall cause to be published the
aforementioned summary and shall post in the office of the City Clerk a
certified copy of this Ordinance together with the names of the members of
the City Council voting for and against the Same_
PASSED AND ADOPTED this d
ATTEST:
City Clerk of the City of CoAa Mesa
APPROVED AS TO FORM:
City torney
STATE OF CALIFORNIA )
COUNTY OF ORANGE ) ss.
CITY OF COSTA MESA )
Mayor of the City of Costa Mesa
I, EILEEN P. PHINNEY, City Clerk and ex -officio Clerk of the City Coun-
cil of the City of Costa Mesa, hereby certify that the above and foregoing
Ordinance No. was introduced and consideredection b ectio at a
regular meeting of said City Council held on the 07Z4 day of ,
1987, and thereafter passed nd adopted s a w ole at a regular meeting of
said Council held on the day of 11JA,1987, by the following
roll call vote:
AYES: COUNCIL MEMBERS: /vr&ev�
NOES: COUNCIL MEMBERS: '7j_
ABSENT: COUNCIL MEMBERS: 127.0"K -
IN WITNESS WHEREOF, I have hereb set my ha aff'xed the Seal
of the City of CostaMesa this day of n , 1987.
City Clerk and ex -officio Clerk of he
City Council of the City of Costa esa
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