SAFETY & SEISMIC SAFETY ELEMENT - Las Vegas
SAFETY & SEISMICSAFETY ELEMENTexecutive summaryfire hazard safetyflood control hazard safetyseismic hazard safetynoise hazard safetyhazardous material safetylandslide hazard safetyimplementationAdopted byCity Council 8-4-10
The City of Las Vegas Safety & Seismic Safety Elementof the Las Vegas 2020 Master Planwas adopted byCity Council on August 4, 2010Safety & Seismic Safety Element(Ordinance 6103).Safety & Seismic Ele;MPlan;indd;rs/8-4-10
CITY OF LAS VEGAS SAFETY & SEISMIC SAFETY ELEMENTTABLE OF CONTENTSEXECUTIVE SUMMARY. 1Introduction .3Relationship To The Master Plan .4FIRE HAZARD SAFETY. 5Background .5Level Of Service: Existing Inventory.6Level Of Service: Future Inventory .6Automatic Aid Agreements .7Land Use .7FLOOD CONTROL HAZARD SAFETY .13Introduction .13Regional Flood Control Planning .13Stormwater Management .14Stormwater Quality.15Service Standards .16The System .16The CCRFCD System .16The City System.16Current Development Needs .16Addressing Future Needs .18Issues .18Goal, Objectives, Policies, And Programs .19SEISMIC HAZARD SAFETY .21Seismicity/Earthquake Hazards.21Topography And Soil Types .24Subsidence.28Summary .36Issues .36Goal, Objectives, Policies, And Programs .37Safety & Seismic Ele;MPlan;indd;rs/8-4-10Table of ContentsNOISE HAZARD SAFETY.39Introduction .39Effects Of Noise .41Noise Mitigation Methods.42Noise Issues .43Goal, Objectives, Policies, And Programs .45i
HAZARDOUS MATERIAL SAFETY .49Introduction .49The Radioactive Waste Issue: The City’s Position.49Impacts Of Nuclear Waste Transportation .50Issues On Nuclear Waste .50Goal, Objectives, Policies, And Programs .59LANDSLIDE HAZARD SAFETY.61IMPLEMENTATION .61DEFINITIONS.63REFERENCES .65Table of ContentsMAPS12345678910111213TABLES12345iiExisting Fire Stations, City Of Las Vegas.9Las Vegas, Clark County & North Las Vegas Fire Stations .10LVFR Bomb Squad Response Area.11Population Density, City Of Las Vegas .12Flood Control Facilities, City Of Las Vegas .17Existing Fault Lines, City Of Las Vegas .22Seismic Risk Map Of The United States .23Soils Map/Soils Classifications, City Of Las Vegas.26Subsidence Potential, City Of Las Vegas .30Existing Land Subsidence/Soil Compressibility, City Of Las Vegas .34Existing Land Use With Fault Lines, City Of Las Vegas .35Airport Noise Exposure, City Of Las Vegas .46Approved Heliports, City Of Las Vegas .47Soil Impacts.27Specific Cases Of Damage Caused By Subsidence .31Land Use Noise Compatibility Guidelines .40Land Use Compatibility .41Common Outdoor And Indoor Noises .42Safety & Seismic Ele;MPlan;indd;rs/8-4-10
EXECUTIVE SUMMARYThe Nevada Revised Statutes (NRS), which sets out planning lawfor the State of Nevada, mandates the preparation of comprehensive,long-term general plans, known as master plans. The NRS also identifies a series of required elements to be covered by the master plan forentities located within counties of more than 400,000 persons. ThisSafety & Seismic Safety Element is a required element of the MasterPlan per NRS 278.160.For purposes of the City of Las Vegas, the Safety & Seismic SafetyElement will address the following sub-elements: Fire HazardsFlood HazardsSeismic HazardsNoise HazardsHazardous MaterialsLandslide HazardsAs an element of the City’s Master Plan, the planning horizon forthe Safety & Seismic Safety Element is 20 years, with updates scheduled every five years. This element has been prepared, as an amendment to and augmentation of the Master Plan, through input fromvarious cities, citizen groups, and public agencies directly responsiblefor providing the services addressed in this plan. Each of the following sub-elements includes the following recommendations: Fire Protection Services: Mitigate both natural and man-madefire hazards found in the City of Las Vegas.The Fire & Rescue Department will continue to identify fire hazards and develop policies to respond in case of an emergency. Flood Control Hazards: Provide infrastructure to mitigate issuescaused by excessive rainfall.Safety & Seismic Ele;MPlan;indd;rs/8-4-10Executive SummaryDue to natural and man-made factors, flooding is a criticalconcern of many within the entire Las Vegas Valley. Because ofthe regional significance and consequences of this issue, stepshave been taken by the jurisdictions within the Valley to addressthis matter in a cohesive manner, mainly through the creationof the Clark County Regional Flood Control District (CCRFCD) in1985. This agency has identified the critical areas of the Valleythat are prone to flooding, or are major causes of flooding, anddeveloped a master plan for the construction of facilities (detention basins, channels) that will prevent property damage and/orinjury or loss of life as a result of this storm water runoff and associated flooding. The construction of these facilities will also aidin the prevention of water contamination at the primary sourceof drinking water for Las Vegas: Lake Mead.1
Seismic Hazards: Mitigate damage to property related to geologic hazards found in Las Vegas.There are three (3) geologic factors that greatly influence developmentpatterns and practices within the City of Las Vegas: seismic, soil composition, and subsidence. Seismically, a number of faults are present throughout the City of LasVegas, thus construction practices have to take this factor into consideration, although no major earthquakes have ever been reported in ClarkCounty. The soils present within the City of Las Vegas are directly attributed tothe topography and physiographic conditions that prevail in this portionof the state, and have a great impact on the development of a particularsite. Some of the soils found locally have a high alkaline content, whichcompromises the integrity of untreated steel and concrete, while otherscould jeopardize a building’s foundation due to the shrink/swell potential of soil (the reaction of the soil when water is introduced). The Cityshould continue to monitor these areas of concern, and require measures to address adverse soil conditions on a case-by-case basis. Arguably, the most severe geologic hazard present within the Cityof Las Vegas would be the problem of subsidence, or the lowering ofthe earth’s crust. Due to the continued withdrawal of water from theground, and other natural and man-made phenomenon, certain sections of the city have experienced ground subsidence, which oftenresults in severe damage to a structure’s integrity, as evidenced by anumber of documented cases. Efforts to address the problem, throughgroundwater recharge and/or tighter building controls and requirements, should continue. Noise Hazards: Mitigate excessive noise pollution within the City.Executive SummaryAs the City of Las Vegas continues to become an increasingly urbanizedmunicipality (as a result of the rapid growth rate and sprawling growthpatterns), the urban noise levels that result from increased activity arelogically going to increase as well. These increased levels are expectedto have a number of impacts on the health and welfare of the residents,including non-auditory, speech interference, and sleep interference.The City of Las Vegas should take a proactive approach to mitigate noiseimpacts on the general population. This can be accomplished throughproper zoning and site design measures, the use of open space buffers,and the construction of noise barriers where appropriate. Hazardous Materials: Mitigate any negative effects from the movement of hazardous materials within City limits.In Las Vegas, the issue of hazardous materials is primarily focused on thedisposal of nuclear waste, and a proposal by the Federal Governmentto utilize Yucca Mountain (within the Nevada Test Site) as a nuclear2Safety & Seismic Ele;MPlan;indd;rs/8-4-10
waste disposal facility. There are several questions raised aboutthis proposal including health risks to general population alongtransportation routes, highway transportation risks, accidentpotential, performance of nuclear waste holding containers,and the amount of waste anticipated for transportation andstorage. In response to growing concerns about the shipmentof such hazardous materials through the city of Las Vegas, theCity Council recently declared the city to be a nuclear-free zone.The city should continue to closely monitor this issue and devise a plan to safeguard the residents of the community in theevent the transportation of nuclear waste crosses into the city’sboundaries. Landslide Hazards: Mitigate damage caused by landslideswithin the city.The topography found within the city limits does not pose a riskof landslides.INTRODUCTIONThe Safety & Seismic Safety Element is intended to providepolicy direction to the city with regard to issues that affect the safety,health and welfare of the general public. The range of safety issuesaddressed through this Element are covered under the followingsections: Fire HazardsFlood HazardsSeismic HazardsNoise HazardsHazardous MaterialsLandslide HazardsUnder each of these headings, this Element will: Inventory the number and location of public facilities intended toaddress a particular component; Identify established policies and standards, where they exist, toaddress safety issues; Identify gaps or shortcomings that may exist in the current structure of policies and standards; and Propose policies and actions intended to address areas ofconcern.Safety & Seismic Ele;MPlan;indd;rs/8-4-10Executive SummaryFor purposes of this element, unfamiliar terms are defined in theDefinitions section and unfamiliar concepts will be discussed in detailas they are introduced.3
RELATIONSHIP TO THE MASTER PLANThe Nevada Revised Statutes require the preparation and adoption of a comprehensive, long-term general plan for the physical development of the city. For cities like LasVegas, which is located in a county having a population of 400,000 or greater, state lawrequires the master plan to address 18 different subject areas. A safety plan and a seismicsafety plan are both required components per NRS and are both specifically addressed bythis Safety & Seismic Safety Element. Additionally, this Element addresses noise hazardswithin the city.This Element forms a component part of the Las Vegas 2020 Master Plan. It is intended to address where possible, the goals, objectives and policies of the Las Vegas 2020Master Plan document that was approved by City Council in September 2000. In particular, this Element addresses Objective 7.3 of the Master Plan capstone document, whichstates:“To ensure that public safety problems are fully and adequately identified and thatlong term solutions are identified and implemented by the respective local governmentdepartments and agencies vested with those responsibilities.”As a follow up to this objective, the document contains a number of policies whichare addressed by this Element. These policies focus on protective services, noise issues,seismic activity and hazardous material. These policies are as follows:POLICY 7.3.2: That the City continue to provide efficient and cost effectiveservices and facilities for fire prevention, fire suppression, hazardousmaterial control and emergency medical care for the City of Las Vegasand assist Clark County as deemed appropriate in the provision ofthese services for County islands and County areas north of CheyenneAvenue and west of Decatur Boulevard.POLICY 7.3.3: That the City participate with local governments within the LasVegas Valley, and with other levels of government, to research, monitor and assess the effect on public safety and property that may arisefrom geologic hazards such as seismic activity, from land subsidenceand related groundwater usage practices, and from poor soil conditions such as collapsible and expansive soils.POLICY 7.3.4: That the City establish and enforce maximum acceptable levelsfor noise within residential and public areas in conjunction with stateand local agencies.Executive SummaryPOLICY 7.3.8: That the City coordinate with the appropriate entities to ensurethat any contaminants from federal facilities, such as the Nevada TestSite and Yucca Mountain, do not flow into the Valley water supply as aresult of seismic activities or other forces of nature. The City will ensurethat wastes of all types are disposed of in an appropriate manner.The policies and actions contained in the following sections of this Safety & SeismicElement have been designed to comply with and implement the broader general goals,objectives and policies of the Master Plan as listed above.4Safety & Seismic Ele;MPlan;indd;rs/8-4-10
FIRE HAZARD SAFETYThe geographic condition of the city of Las Vegas does not present a natural fire risk, such as wild land fire. For those fires consideredman-made, whether intentional or unintentional, most occur in buildings. In 2006, Las Vegas Fire & Rescue obtained Accredited Agencystatus through the Commission for Fire Accreditation International(CFAI). Part of this designation requires the department to conduct athorough community risk assessment for all possible hazards within itsjurisdiction for which it provides responses services.In order to perform community risk assessment, department staffidentifies fire types and assigns a score for the hazard level, probabilityof the occurrence of a fire event, and the likely consequences of thefire event (i.e., economic or loss of life), which yields a total risk score.Based on the risk score for each hazard type, the appropriate level ofdeployment (number of firefighters and equipment) is determined foreach classification, resulting in the department’s fire safety plan forman-made fire hazards.The purpose of this section of the Safety and Seismic Safety Planis to explain how the services of Las Vegas Fire & Rescue (LVFR) will beincorporated in the accomplishment of public safety in a comprehensive manner. Discussion will detail how LVFR will interact with the cityof Las Vegas per Policy 7.3.2 of the 2020 Master Plan.BACKGROUNDLas Vegas Fire & Rescue operates under a vision statement, mission statement, and strategic business plan that aligns to City Councilpriorities and promotes community risk reduction and safety. TheDepartment’s mission is “to provide fire, medical, and other emergency response and prevention services to residents, businesses, andvisitors so they can live
Safety & Seismic Safety Element is a required element of the Master Plan per NRS 278.160. For purposes of the City of Las Vegas, the Safety & Seismic Safety Element will address the following sub-elements: Fire Hazards Flood Hazards Seismic Hazards Noise Hazards Hazardous Materials Landslide Hazards
The Seismic Tables defined in Pages 5 & 6 are for a seismic factor of 1.0g and can be used to determine brace location, sizes, and anchorage of pipe/duct/conduit and trapeze supports. The development of a new seismic table is required for seismic factors other than 1.0g and must be reviewed by OSHPD prior to seismic bracing. For OSHPD,
EXAMPLE 9 SEISMIC ZONE 1 DESIGN 1 2018 Design Example 9 Example 9: Seismic Zone 1 Design Example Problem Statement Most bridges in Colorado fall into the Seismic Zone 1 category. Per AASHTO, no seismic analysis is required for structures in Zone 1. However, seismic criteria must be addressed in this case.
SC2493 Seismic Technical Guide, Light Fixture Hanger Wire Requirements SC2494 Seismic Technical Guide, Specialty and Decorative Ceilings SC2495 Seismic Technical Guide, Suspended Drywall Ceiling Construction SC2496 Seismic Technical Guide, Seismic Expansion joints SC2497 Seismic
Peterson, M.D., and others, 2008, United States National Seismic Hazard Maps ․ Frankel, A. and others, Documentation for the 2002 Update of the National Seismic Hazard Maps ․ Frankel, A. and others, 1996, National Seismic Hazard Maps Evaluation of the Seismic Zoninig Method ․ Cornell, C.A., 1968, Engineering seismic risk analysis
To develop the seismic hazard and seismic risk maps of Taungoo. In developing the seismic hazard maps, probabilistic seismic hazard assessment (PSHA) method is used. We developed the seismic hazard maps for 10% probability of exceedance in 50 years (475 years return period) and 2 % probability in 50 years (2475 years return period). The seisic
This analysis complied with these provisions by using the USGS 2014 National Seismic Hazard Map seismic model as implemented for the EZ-FRISK seismic hazard analysis software from Fugro Consultants, Inc. For this analysis, we used a catalog of seismic sources similar to the one used to produce the 2014 National Seismic Hazard Maps developed by .
the seismic design of dams. KEYWORDS: Dam Foundation, Probabilistic Seismic Hazard Maps, Seismic Design 1. INTRODUCTION To perform seismic design or seismic diagnosis, it is very important to evaluate the earthquake hazard predicted for a dam site in order to predict earthquake damage and propose disaster prevention measures. There are two .
America’s Problem-Solving Courts: The Criminal Costs of Treatment and the Case for Reform CYNTHIA HUJAR ORR President, NACDL San Antonio, TX JOHN WESLEY HALL Immediate Past President, NACDL Little Rock, AR NORMAN L. R EIMER Executive Director, NACDL Washington, DC EDWARD A. M ALLETT President, FCJ Houston, TX KYLE O’D OWD Associate Executive Director For Policy, NACDL Washington, DC .
