HomeMy WebLinkAbout04/05/1994, C-4 - FLOOD DAMAGE PREVENTION REGULATIONS. 11111tli lljjj�A11llj MEETING DATE:
������ Cl-W 0 San u,Us �$�SpO April 5, 1994
COUNCIL AGENDA REPORT ITEM NUMBER: A
FROM:
Michael D. McCluskey, Public Works Direct6r:
Prepared by: Gerald W. Kenny, Supervising Civil Engineer
SUBJECT:
Flood Damage Prevention Regulations.
CAO RECOMMENDATION:
Give final passage to Ordinance No. 1259 (1994 Series) amending Sections 17.84.030,
17.84.110, 17.84.130 and 17.84.160 of the City's Flood Damage Prevention Regulations.
BACKGROUND:
The City Council passed Ordinance No. 1259 (1994 series) to print on March 15, 1994. The
Council must now hold a public hearing and consider final passage of the ordinance. The public
has received notice of this hearing in the Telegram-Tribune. No public comments have been
received to date, except as noted in the March 15 Council staff report.
ALTERNATIVES:
Option 1: Refer ordinance back to staff with specific direction as to any desired changes.
FISCAL IMPACT:
No direct impact on the City.
CONCURRENCES:
The Community Development. Director and City Attorney concur with the recommended action.
As noted in the March 15 staff report, staff notified developers, engineers and surveyors
associations, as well as the BIA and Chamber of Commerce, of the proposed amendments. The
Central Coast Chapter of the California Land Surveyors Association submitted comments. Their
comments were discussed in that report.
Attachment: Ordinance No. 1259 (1994 Series)
G:\...\FEMA\OrdFinal.REP
ORDINANCE NO. 1259 (1994 Series)
AN ORDINANCE OF THE CITY OF SAN LUIS OBISPO AMENDING SECTIONS
17.84 . 030, 17.84. 1101 17.84 . 130 AND 17 .84 . 160 OF THE MUNICIPAL CODE
REGARDING FLOOD DAMAGE PREVENTION REGULATIONS
BE IT ORDAINED by the Council of the City of San Luis Obispo as
follows:
SECTION 1. Section 17.84 .030, paragraghs (I) , (J) and (CC) of
the Municipal Code of the City of San Luis Obispo are hereby
amended to read:
I. "Flood Insurance Rate Map (FIRM) " means the official
map, dated July 7, 1981, on which the Flood Insurance
Administration has delineated both the areas of special flood
hazards and the risk premium zones applicable to the community.
J. "Flood Insurance Study" means the official report,
dated October 1978, revised July 7, 1981, provided in which the
Flood Insurance Administration has provided flood profiles, as well
as the Flood Hazard Boundary-Floodway Map and the water surface
elevations of the base flood.
CC. "Substantial improvement" means any repair,
reconstruction or improvement of a structure, the cost
(cumulatively, within any five-year period) of which equals or
exceeds fifty percent of the market value of the structure either
before the improvement or repair is begun, or, if the structure has
been damaged and is being restored, before the damage occurred.
For the purposes of this definition, substantial improvement
is considered to occur when the first alteration of any wall,
ceiling, floor or other structural part of the building commences,
0-1259
Ordinance No. 1259 (1994 Series)
Page Two
whether or not that alteration affects the external dimensions of
the structure. The term shall not, however, include either:
1. Any project for improvement of a structure to comply
with existing state or local health, sanitary or safety code
specifications which are solely necessary to assure safe living
conditions; or,
2 . Any alteration of a structure listed on the National
Register of Historic Places, listed on the State Inventory of
Historic places or listed on the City's Historical and
Architectural Element of the General Plan.
SECTION 2. Section 17.84. 110 is hereby amended to add paragraph
G. to read:
G. Subdividers and/or Developers shall apply for and obtain
Letters of Map Revisions from the Federal Emergency Management
Agency when physical changes constructed with developments affect
flooding conditions which would change special flood hazard zones.
SECTION 3. Section 17.84 . 130, paragraph C.2. , is hereby amended
to read:
C.2. Obtain and record the actual elevation (in relation to
mean sea level, 1929 NGVD) of the lowest floor (including basement)
of all new or substantially improved structures;
SECTION 4. Section 17 .84 . 160 is hereby amended to read:
A. New construction and substantial improvement of any
structure shall have the lowest floor, including basement, elevated
�-�-3
Ordinance No. 1259 (1994 Series)
Page Three
to at least one foot above the level of the base flood elevation,
or, at least one foot greater than the depth number above the
highest adjacent grade in AO Zones.
B. EXCEPTION: The City Engineer may allow commercial,
industrial or other non-residential structures to be "floodproofed"
in developed areas, when elevating the lowest floor above the base
flood elevation is not feasible and/or the surrounding developments
are not built above the base flood elevation, together with the
attendant utility and sanitary facilities, and shall meet the
following conditions:
1. Be floodproofed to one foot above the base flood level, or
at least one foot greater than the depth number above the highest
adjacent grade in AO Zones, so that the structure, including
utilities and plumbing facilities, is watertight with walls
substantially impermeable to the pressure of water.
2 . Have structural components capable of resisting hydrostatic
and hydrodynamic loads and buoyancy; and
3 . Require for all new construction and substantial improve-
ments, that fully enclosed areas below the lowest floor that are
subject to flooding shall be designed to automatically equalize
hydrostatic flood forces on exterior walls by allowing for the
entry and exit of floodwaters. Designs for meeting this require-
ment must either be certified by a registered .professional engineer
or architect, or meet or exceed the following minimum criteria:
2-#.,O{
Ordinance No. 1259 (1994 Series)
Page Four
a. Either a minimum of two openings having a total net area
of not less than one square inch for every square foot of
enclosed area subject to flooding shall be provided, the
bottom of all openings shall be no higher than one foot above
grade. Openings may be equipped with screens, louvers, valves
or other devises provided that they permit the automatic entry
and exit of floodwaters; or
b. Be certified to comply with a local floodproofing standard
approved by the Federal Insurance Administration.
4 . Be certified by a registered professional engineer or
architect that the standards of this subsection are satisfied.
Such certification shall be provided to the City Engineer.
C. Manufactured Homes.
1. All new and replacement manufactured homes and additions to
manufactures homes shall:
A. Be elevated so that the lowest floor is at least one foot
above the based flood elevation; and
B. Be securely anchored to a permanent foundation system to
resist flotation, collapse or lateral movement.
SECTION 5. A summary of this ordinance, approved by the City
Attorney, together with the ayes and noes, shall be published at
least five (5) days prior to its final passage in the Telegram-
Tribune, a newspaper published and circulated in said City, and the
same shall go into effect at the expiration of thirty (30) days
Ordinance No.1259 (1994 Series)
Page Five
after its said final passage. A copy of the full text of this
ordinance shall be on file in the office of the City Clerk on
and after the date following introduction and passage to print and
shall be available to any interested member of the public.
INTRODUCED AND PASSED TO PRINT by the Council of the City of San
Luis Obispo at a meeting held on the 15th day of March 1994 .
On motion of Roalman seconded by
Romero and on the following roll call vote:
AYES: Council Members Roalman, Romero, Rappa, and Settle
NOES: Mayor Pinard
ABSENT: None
MAYOR Peg inard
ATTEST:
Y CL D e G a wel
APPROVED AS TO FORM:
1 Alytort y
G:�,.\FEMA\F1ccdReg.0rd