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HomeMy WebLinkAboutReso 28-1975RESOLUTION NO. 28-75 CITY COUNCIL, CITY OF SOUTH SAN FRANCISCO, STATE OF CALIFORNIA A RESOLUTION FINDING AND DETERMINING THAT, BECAUSE OF LOCAL CONDITIONS, THE PUBLIC HEALTH, SAFETY, WELFARE AND NECESSITY, REQUIRE CHANGES OR MODIFICATIONS TO CERTAIN PROVISIONS OF THE UNIFORM BUILDING CODE, 1973 EDITION, AS PUBLISHED BY THE INTER- NATIONAL CONFERENCE OF BUILDING OFFICIALS, AND AS ADOPTED BY REFERENCE, AND MADE APPLICABLE TO THE CITY OF SOUTH SAN FRANCISCO. WHEREAS, pursuant to the provisions of Sections 50022.1, et seq., of the Government Code, this Council proposes to adopt by reference the "Uniform Building Code, 1973 Edition," as published by the International Conference of Building Officials, and WHEREAS, in connection therewith, certain changes or modifications are proposed to be made to the substantive provisions of said Uniform Building Code, which changes or modifications are ~easonable and necessary because of local conditions, and WHEREAS, Section 17958.7 of the California Health and Safety Code requires, insofar as such changes or modifications relate to apartment houses, hotel s, motel s, and dwel 1 ings and bui 1 dings and structures accessory thereto, that the governing body of a city, before making any'modifications or changes to such Uniform Code, shall make an express finding that such modifications or changes are needed; NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of South San Francisco as follows: In connection with the adoption of the ordinance entitled "An Ordinance of the City of South San Francisco Regu- lating Buildings, Structures, and Acts Related Thereto; Providing for lo Permits, Fees and Penalties; Repealing Ordinance No. 574, and Adopting by Reference the International Conference of Building Officials' Uniform Building Code and Uniform Building Code Standards, 1973 Editions," it is hereby expressly found and determined that the following changes or modi- fications to the aforesaid Uniform Building Code, insofar as the same relate to apartment houses, hotels, motel's, and dwellings, and buildings and structures accessory thereto, are reasonable and necessary because of 1 ocal condi ti ons: 1. Section 2623 Minimum Slab Thickness. (a) The minimum thickness of concrete floor slabs supported directly on the ground shall be not less than three and one-half inches (3½"). (b) Following-are the requirements .for concrete slabs on ground used as a finish floor or as a base. for other floor finish in habi tab 1 e rooms: 1. Minimum thickness of reinforced concrete three and one-hal f inches (3½"). 2. Membrane water-proofing or water-proofing acceptable to the Building Official shall be provided. Extend to exterior walls or beyond the limits of habitable rooms and turned up to top of slab. 3. A granular material shall be placed .under concrete slab and shall be of proper consistency and thickness to retard capillary action and shall be approved by the Building Official. FINDINGS: The minimum thickness, membrane and granular placement required by this modification are necessary because without the installation of same as prescribed, moisture from under- ground springs, high water table combined with heavy rainfall after saturating or contributing to soil saturation would be carried through the slab by capillary action to the floor coverings above creating a damp condition and presenting a health hazard to the building occupants. 2, 2. Section 2903(c) Grading and Drainage. The concrete cover beneath the floor system of a building shall be graded to a low point so as to provide ~positive drainage to the exterior. If the exterior grade is higher than the grade beneath the floor system, a positive drain system shall be installed subject to approval of the Building Official. The exterior grade around every building shall be sloped away from the building by a minimum grade of one-half inch per foot (½" per 1') for a distance of thirty inches (30"). Grading for drainage shall be arranged so as to drain toward the sidewalk om street gutter, except where alternate methods are approved by the Bui 1 ding Official. FINDINGS: The grading requirements and/or drain systems required by this modification are necessary because without the installation of same as prescribed, moisture from underground springs, high- water table, combined with heavy rainfall would accumulate beneath the floor system thereby creating a damp condition contributing to mildew and dryrot and present a health hazard to the building occupants. 3. Section 2907 Footings. (h) . Concrete Coverage. Every building.or portion thereof, in order to minimize dampness, a concreLe covering having a minimum thickness of two inches (2") shall cover all otherwise exposed earth within the founda ti on wal 1 s. (i) Group H and I Occupancies. A minimum of two (2) half-inch (½") steel reinforcing bars shall be placed in continuous foundation of all Group H and I Occupancies, with one such rod placed three inches (3") from the top of the foundation and the other three inches (3") from the bottom of the footing. FINDINGS: The concrete coverage required by the modification set forth in Subsection (h) is necessary because without the installation of same as prescribed, moisture from the saturated ground combined with humidity would cause dampness within the founda- tion and generate mildew and dryrot in the subarea wood framing members. The reinforcing bars required by the modification set forth in Subsection (i) are necessary because without the instal- lation of same as prescribed, building failure could result in the event of a severe earthquake, and the San Andreas Fault, with a severe earthquake potential, passes through the City of South San Francisco. . 4.. Section 3802(b) Automatic .Fire Extinguishing Systems; Where Required. 12. (a) Any building or structure having a total floor area of 10,000 square feet or more; or (b) Any building or structure Which is 40 feet or more in height, as defined in this Code; or (c) Any building or structure which is three (3) stories or more, irrespective of height, as set forth in (b)' above, as defined in this Code. FINDINGS: The automatic fire extinguishing systems required by this modification set forth in Subsection 12(a), (b) and (c) are necessary because the installation of same as prescribed will furnish a reasonable level of fire protection for tl~e said types of structures and occupants thereof. 5. Chapter 46. Moving Buildings. Section 4601 Bond. In addition to all other requirements of the Buildinq Code relating to the moving_of buildings and structures, no permit for the moving of buildings and struCtures shal'! be granted by the Building Official until the applicant shall have filed with the Building Official (a) a corporate surety bond in favor of the City, in the sum of not less than One Thousand Dollars ($1,000.00) nor more than One Hundred Thousand Dollars ($100,000.00), in such amount, however, as the Building Official may determine, which bond shall be conditioned that the applicant will strictly comply with all conditions and provisions of this article, and of any provision of the City of South San Francisco relating to the moving of buildings or structures, and of any order, rule or regulation which may be hereafter passed or adopted by the Council, and that such person will pay any and all dam- ages which may result, by reason of the moving of the building or struc- ture, to any fence, hedge, tree, pavement, street, sidewalk, curb, gas pipe, water pipe, sewer pipe, electric wire or pole supporting the same, or to any public or private property, and (b) an undertaking to indem- nify and save harmless the City and its elective officers, agents and employees against all liabilities, claims, actions, judgments,, cost or any expense which may in anywise accrue against the City or any of them caused by the issuance of said permit or moving of such buildings or structures. Section 4602 Place and Manner of Removal. In 'addition to all other requirements of the Building Code, relating to the moving of buildings or structures, all removals made under any permit granted for such moving shall be done over and along only the street, or streets designated in such permit, and at the times therein specified, and shall be done in a careful manner to the satisfaction of the Building Official and the Superintendent of Streets. e Section 4603 Time Limited During Which Buildings To Be Left Standing on Any Block. No person owning or having charge of the removal of any building or structure being moved over any street, shall permit such building or structure to be, or stand, on any street within the limits of any one block for a period of more than twenty-four' (24) hours. Section 4604 Prevention of Injury to Street. No person owning or .. having charge of the removal of any building.or struc- ture being moved over any street, shall allow or cause injury to any fence,, hedge, tree, pavement, street, sidewalk, curb, gas pipe, water pipe, sewer pipe, electric wire or pole supporting same, or any other public or private-property by reason of such removal. FINDINGS: The regulations regarding moving buildings set forth in this modification are necessary to reasonably protect public and private property and minimize interference with the orderly management of traffic in the City of South San Francisco. 6. Sections and subsections of Chapter 70 as hereinafter set forth. Chapter 70 __ 7003 Permits Required. Except for the following,I no person-shall . do any grading without first having obtained a grading permit from the Building Official, which term when used in this chapter shall mean the Director of Public ~Ser_vilce_s.. 'All fill less than 1 foot in depth, and placed on natural terrain with a slope flatter than five horizontal to one vertical, or less than 3 feet .in depth, not intended to support structures, which does not exceed 50 cubic yard. s on~ any one lot and does not' obstruct a drainage Course. 2, Grading for the purpose of agricultural irrigation or culti-' vation. Be . 7OO4 (a) (b) Hazards. Whenever the Building Official determines that any exist-.-' ing excavation or embankment or fill on private property has become a hazard to life and limb, or endangers property,' or adversely affects the safety, use or stability of a public way or drainage channel, the owner of the property upon which the excavation or fill is located, or other person or agent in control of said property, upon receipt o~ notice in writing from the Building Official shall within the .period specified therein repair or eliminate such excavation or embankment so as to eliminate the hazard and be in conformance with the requirements of this Code. ,. : The owner of any property on which an excavation Or fill has been made, shall maintain in good condition and repair all retaining walls, cribbing, drainage structures, planted slopes~ natural water courses and surface drainage. . · 7006 (e) Grading Permit Requirements. Soil Engineering Report. The soil engineering report required by Subsection (c) shall include data regarding the nature, distribution and strength of existing soils, conclusions and recommendations for grading procedures and design criteria for corrective measures when necessary, and opinions and recommendations covering adequacy of sites to' be developed by the proposed grading. e Soil engineering report on engineering grading shall, include results of at least one triaxial compression test or a direct sh'ear test, where applicable; sieve analysis of coarse and fine aggregates; show the location of water table; loca- tion of test bore holes and compaction tests. Where public improvements involve streets, the soils report shall include results of R value tests, taken for the native material over which the improvement is to be made. R values at both' 300 psi exudation pressure and the expansive pressure shall be included. .. In expansive soils such as clay, where the fill is greater than 6 feet, a thorough analysis for slope stability of the grading shall be provided which contains a minimum slope stability factor of safety of 1.15. Where clay strata exist, the soil engineering report shall include the thickness of clay strata, its depth below sur-. face and its effect with regard to settlement of founda- tions of improvements and shall be supported by consolida- tion test results. The Building Officia1 may require additional tests as required, and the costs of these tests shall be borne by the developer. The results of these tests will be included in the soil engineer- ing report. Recommendations included in the report and approved by the · Building Official shall be incorporated in the grading plans or specifications. 7, (f) (h) Engineering Geology Report. The engineering geology report required by Subsection (c) shall include an adequate descrip- tion of the geology of the site, conclusions and recommenda- tions regarding the effect of geologic conditions on the proposed development, and opinions and recommendations covering the adequacy of sites to be developed by 'the proposed graSing. W. ben springs and ground water are encountered upon excava- tion, the engineering geology report shall describe, in detail, measures for the permanent drainage, of water from the proposed construction site. Where borings show extensively thick soft strata or clay,- a map showing the boun~la~ri'es of such strata and its thick- ness shall also be'a part of engineering geology report. Recommendations included in the report and approved by the · Building Official shall be incorporated in the grading plans or specifications. Transportation Routes. The routes along which fill and grading material, will be transported shall be designated by 'the Building Official. : . . .. Further Subdivision Grading. In subdivision work where grading is completed in accordance with the plans and specifications, and further grading is proposed, a new grading permit may be required and all such grading shall. be in conformance with this chapter and other related provisions of the Uniform Building Code. 8. (J) (k) Hours. No grading or any work in connection therewith including the import and export of earth materials shall be conducted between the hours of 6:00 PM and 7:00 AM of any day, nor on Saturday or Sunday at any time without prior written approval of the Building Official. Grading in Public Right-of-Way. No person shall do any grading in public right-of-way or a public easement without first obtaining an encroachment permit from the Building Official. - 7008 (b) Public Nuisances and Immediate Hazardous Conditions. Bonds. -The owner and contractor shalll conduct the grading work . in such a manner as not to 'create a present public nuisance or immediate public hazard and shall file a corporate surety bond with the Building Official' in a sum not less thanI ' : $50-,000 to assure remedial 'work required, to abate any present public nuisance or immediate public hazar~ so created, if such a bond is required by the Building Official. . The Building Official may reasonably reduce the amount of the corporate surety bond based on the discretionary deter- mination as to the scope of any anticipated remedial work, but in no case to a sum of less than $10,000. In lieu of a surety bond the applicant may file a cash I)ond or instrument of credit with the Building Official in an amount equal to that which would be required in the surety bond .' 9'. (c) Liability Insurance. The Building Official may, before issuing the permit, require that the applicant for a permit file a certificate showing that he is insured against claims for damages for personal injury as well as cl'aims for property damage, including damage to the City by deposit or washing of material onto City streets or other public improvements, which may arise from or out of the performance of the work, whether such performance be by himself, his subcontractor or any person directly.or indirectly employed by him, and the amount of such insurance shall be at least $100,000 and $300,000 public liability,, and $100,000 property damage. Any such insurance shall include protection against liability . . .. arising from completed operations provided the cause of action therefor existed at the time of project completion. - Any such insurance shall be written by .a company Which meets with the approval of the City Attorney and shall insure the City, its officers, agents and employees against loss or. lia~bility which may.arise from each occurrence during the performance of or which may result from any work herein required to be done. .. 7ozo(c) Preparation of Ground.. The ground surface shall be prepared to receive fill by removing vegetation, noncomplying fill, topsoil and other unsuitable materials as determined by the soil engineer, and, where the slopes'are five to one or 10. .(e) steeper,· by benching into sound bedrock or other competent material. The owner shall be responsible for notifying the Building Official for inspection of various stages of the prepared ground. Compaction. All fills shall be compacted to a minimum of 90 percent of maximum density as determined by U.B.C. Standard No. 70-1. Field density shall be determined in accordance with U.B.C. Standard. No. 70-2 or equivalent as approved by the Building Official. No field_density test in accordance with U.B.C. Standard 70-2 shall be taken until location of samples and results of tests under U.B.C. Stand, ard 70-1 have been furnished.to the Building Official and he thereafter approves thee tests. 7011 (a) . · (b) (c) Setbacks. The tops and the toes of cut and fill slopes shall be set back from property boundaries as far as necessary for safety of the adjacent properti'es and to prevent damage resulting from water, runoff or erosion of the slopes. The tops and the toes of cut and fill slopes shall be set back from structures as far as is necessary for adequacy of foundation support and to prevent damage as a result of water runoff or erosion of the slopes. Unless otherwise recommended in the approved soil engineering and/or engineering geology report and shown on the approved 11. (d) grading plan, setbacks shall be no less than shown in · Table No. 70-C. In the absence of any designation of the proper location of the lot or parcel on which a building is to be erected or on which grading work is to be done, the Building Official may require that the lot or parcel be surveyed .and staked by a Registered Land Surveyor or Registered Civil Engineer. 7012 (c) {d) Drainage and Terracing' Subsurface Drainage. Cut and fill slopes shall be provided with subsurface drainage as necessary for stability. Sub- . surface drainage shall be provided as recommended by the soil engineering and/or engineering geology report, and be approved by the Building Official. Where no soil engineer- ing repor't is required, all subdrains shall be backfilled with an approved filter material, the thickness a~d grading size of the filter material shall be approved by the Building Official. Disposal. All drainage .facilities shall be designedltO · , · carry waters to the nearest practicable drainage way approved by the Building Official and/or other appropriate jurisdiction as a safe place to deposit such waters. If drainage 'facil- ities discharge onto natural ground, riprap may be required. Drainage facilities for the disposal of water from ditches 12. or terraces may include C.M.P. pipe of adequate size con- nected to an existing drainage system or an alternate diS- charge method as approved by the Building Official. An approved inlet 'structure shall be provided to permit the flow from the ditches to enter the C.M.P. 'pipe. Anchorages along slope shall be approved by the Building Official. At least two percent gradient toward approved drainage facilities from buildi.n§ pads will be required unless waived by the Building Official for nonhilly.terrain. EXCEPTION' The gradient from the building pad may' be one percent where building construction , and erosion control will be completed-' · ' before hazardous conditions can occur. - 7o 4(.g) Inspections. AllI grading subject to pemit shall be subject to inspections, including- 1. Initial Inspection. When the permittee is ready to begin work on an excavation or fill, notification shall be given to the Building Official at least two {2} days before any grading is done. 2. Rough Grading. When all rough grading has been com- pleted. 3. Final. When all work, including installation of all drainage structures and other protective devices has been completed. ~ 13. The Building Official shall approve the work inspected or give written notice to permittee and owner of the remedial work required to conform with the plans and specifications aha the provisions of this Chapter. 7016 Restriction of Work During Rainy Season. The'period between November I and May i is hereby determined to be the period ,~, w, lcn heavy ralnTal~ normal)y occurs in the City of South San Francisco. During this period no grading work in excess of 200 cubic yards will be authorized on any single grading site under permit where the Building Official determines that such work will endanger.the public health or safety. -, PreviouslY authorized grading work which extends into the rainy season shall be protected by incorporating temporary erosion control devices. Plans of erosion control devices shall be submitted to the Building Official and design approval obtained not later than October i of the coming rainy season.- The design of desilting basins which dis- _ charge into City streets or natural water courses shall be under the control of.the Building Offici'al' All temporary. ero§ion control and devicJs including the desilting basins shall be installed not later than November 1. The Building Official, in the performance of his duties, · . may add: 14. 1. Regulations as to the use of public streets and places in the course of the work. 2. Requirements for safe and adequate drainage of th'e site. 3. A requirement that approval of the Building Official be secured before'any work which has been commenced may be discontinued. 4. A requirement that men and equipment be proVided at the site during storms to prevent incomplete work from endan- gering life or property. 5~ Requirements for fencing of excavation or fills which would be hazardous without such fencings.- 7017 Liability. The City of South San Francisco relies upon" Section 17956 of the Health and Safety Code in enacting Chapter 70 as amended herein of the Uniform Building Code, 1973 Edition, which provides that the City shall not be' liable for any injury which arises out of any act or omission of the City or other enforcement agency or a public employee or any other person under Sections17953, 17954 or 17955. FINDINGS: The said additions and deletions are necessary to (1) clarify the provisions of Chapter 70 and particulary'the said several sections and subsections as same apply to the soil and weather conditions in the City and (2) further implement the provisions of Chapter 70 and particularly the said several sections and subsections as same apply to the soil conditions, grading" works and facilities and weather conditions in the City and assure effective compliance with said provisions. 15. BE IT FURTHER RESOLVED that this resolution which contains the modifica- tions authorized by Health and Safety Code Section' 17958.7 and the express. findings required by said section, shall be available as a public record-and a copy thereof shall be filed with the California Department of Housing and Community Development by the City Cler. k. I hereby certify that the foregoing Resolution was regularly intro- dUced and adopted by the City Council of the City of South San Francisco at a regular meeting held on the lgth day of February 19 75 by the following vote- AYES, COUNCILMEN Richard A. Battaglia, Terry J. Mirri, Leo Padreddii ! and Warren Steinkamp '~ ~' ,. None NOES, " ABSENT, " F. Frank Mammini ATTEST; The aforegoing Resolution was filed with the California Department of Housing and Community Development on the 20th day of February , 1975. rt ur . Ro~ondi, )City Clerk 16.