HomeMy WebLinkAbout92-209 - ResolutionsREF~I/JTIONNO. 92-209
A RESOI//F/ON OF THE CITY COUNCIL OF THE CITY OF RANCMO
CIEAMIqGA, CALIFORNIA, MAKING EXPRESS FINDINGS AND
DETERMINATIONS THAT MDDIFICATIONS TO THE CITY'S BUTTDINS
REGUIATIONS, AS ADOPTMD BY ORDINANCE NO. 497 ARE
REASONABLY NECESSARY BEEAUSE OF LOCAL CLIMATIC,
G~OLOGICAL OR TOPOGRAPHICAL CONDITIONS
A. Recitals.
(i) California Health and Safety COde Sections 17978.5 and 17958.7
allow a city tomake such modificationstotherequ~rements of the regulations
adopted pursuant to Health and Safety Code Section 17922 as it determines to
be reasonablynecessarybecauseof local conditions;
(ii) Prior to making the modifications permitted under Section
17958.5 of the California Health and Safety Code, this Council is required to
make an express finding that such modifications or changes are needed in
accordance withCalifornia Health and Safety Code Section 17958.7.
(iii)
have occurred.
All legal prerequisites to the adoption of this Resolution
B. F~din~s.
NOW, THEREFORE, the City Council of the City of Rancho Cucamonga
does hereby find and determine as follows:
1. In all respects as set forth in the Recitals, Part A, of this
Resolution.
2. This Council does hereby expressly find and determine that the
amendments set forth in Ordinance No. 497, as are more fully described belch,
are reasonably necessary because of local climatic, geological or topographic
conditions. This express finding is supported by and based upon the follc~ing
specific findings and determinations.
(a) Geological:
The City of Rancho Cucamonga is primarily located in
an alluvial fan formed frc~n erosion of the San Gabriel
mountains, said alluvial fan consisting largely of
rocky, granular, and highly erodible soil formations;
A unique geological condition exists within the City
of Rancho Cucamonga in that five earthquake faults are
present, which create the potential for severe seismic
damage and fire hazards. There is potential also for
damage to roadways and impairment of access for fire
equilment to respond to ~encies in the event of a
severe earthquake.
Resolution No. 92-209
Page 2
(b)
c)
Topographical:
The topography of the City of Rancho Cucamonga is
generally that of a gently sloping inclined plane
which projects from the base of the San Bernardino
Mountains, at an elevation in excess of 2,400 feet
above sea level, in a southerly direction where the
elevation is approximately 1,400 feet lower. Natural
slopes of 8 percent or greater generally occur in the
northern third of the City. In many cases, slopes in
the foothills exceed 40 percent. There are also
locations where steeper topography occurs in the
southern portion of the City. All of these
topographical conditions have created slower response
times of ~ vehicles into the high growth
areas, due to the extraordinary uphill slope of the
land.
Adverse topographical conditions exist thr~out a
substantial part of the City of Rancho Cucamonga that
give rise to excessive flooding. Flood control
facilities are not adequate to handle the water flow
that occurs during major rains. Scee of the streets
in the city are actually designed and used for flood
contro 1 purposes, thus making f ire and emergency
access difficult during flood conditions.
As a consequence, many of the streets within the City
are impa/red during such flood conditions and such
flooding causes physical aamage to the streets and the
accumulation of debris, all of which hinder the access
of fire equipment to respond to fire emergencies.
Climate:
Extreme high wiras, C:X:XL,kL~Z"LI.y referred to as Santa Ana
winds, are generated frc~n the desert and reach the
developed areas within City bcur~aries at velocities,
sceetimes in excess of 80 mph.
The City of Rancho Cucamonga is located in a piedmont
area at the base of the San Gabriel mountains, said
location characterized by a warm and dry climate;
The above weather conditions, coupled with flammable
vegetation in the City results in wildland fires,
which draw existing fire fighting forces frcm
structure protection duties for extended periods of
Resolution No. 92-209
Page 3
time. This results in extended response times to
structnlre fires when such personnel and equipment are
c~t.,t,~tted to non-structural protection.
The Uniform Building Code, as adopted by the State
Building Standards C~,~ssion, has no requirements for
anchorage of small detached accessory buildings
against wind forces, and has inadequate requirements
for anchorage of certain roofing materials;
The Uniform Building Code as adopted by the State
Department of Housing and Community Develo[p_nt is
adopted on a statewide basis without specific
consideration for the above stated geologic,
topographic and climatic conditions.
C. Resolution:
NOW, THEREFORE, the City Council of the City of Ranch· Cucamonga
does herebyresolve as follows:
1. Modifications of Sections 3204(d), 3204(e) Table 32-A, Sections
3802(h), and 3803 of the Uniform Building Code, 1991 Edition, are necessary
due to local climatic and topographic oonditions of warm, dry, intense winds
tending to propagate and extend f ires into surrounding structures and
grasslands, and to make access for fire fighting apparatus difficult.
2. Modifications of Figure 29-1, Figure A of Chapter 70, and
Sections 7004, 7008, 7010, and 7013 of the Uniform Building Code, 1991
Edition, are necessary due to geological conditions of rocky, granular soils
which subject cut and fill slopes to rapid erosion.
3. Modification of Sections 2907(b), 3208(b)3, 3208(b)5, andTables
32-B-1, 32-D-1 and 32-D-2, Uniform Building Code, 1991 Edition, are necessary
due tothe local climatic condition of periodic high windsmakinganchorage of
small buildings and certain roofing materials imperative.
D. The City Clerk shall, and hereby is directed to, forthwith upon the
adoption of this Resolution, file a certified copy of this Resolution,
together with certified copies of Ordinance No. 497 with the California
Department of Housing and C~,..onity Development as required by Section 17958.7
of the California Health and Safety Code.
Resoldion No. 92-209
Page4
Tne City Clerk shall certify to the adoption of this Resolution.
PASS}I), APPROVED, and ADOPTS]3 this 1st day of July 1992.
Alexander, Buquet, Stout, Williams, Wright
AYES:
NOES: None
ABS~qT: None
Dennis L. StoUt, Mayor
I, DRR~ J. ADAMS, CITY cTr.k-~Q~< Of the City of Rancho Cucamonga,
California, do hereby certify that the foregoing Resolution was duly passed,
approved, and adopted by the City Council of the City of Rancho Cucamonga,
California, at a regular meeting of said City Council held on the 1st day of
July 1992.
Executed this 2nd day of July 1992, at Rancho Cucamonga, California.