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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.