Glendale (PDF) - Hazard Mitigation Web Portal - State of California

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Natural Hazards Mitigation PlanCity of Glendale, CaliforniaSection 9 – Landslides1. Complete a detailed survey and assessment of existing developments in areasrecognized to be vulnerable to potential slope failures (for instance, the VerdugoMountains, the San Rafael Hills, and at the base of the San Gabriel Mountains).2. Protect existing development and population where appropriate by physical controlssuch as drainage, slope-geometry modification, protective barriers, and retainingstructures.3. Implement monitoring or warning systems. For instance, in the San Francisco Bayarea, the USGS, in cooperation with the National Weather Service, operated a systemfor real-time warnings for storm-related slope failures (Keefer et al., 1987). Using acombination of tracking storm systems, measuring actual rainfall with a network of raingauges, and comparing thresholds for the initiation of debris flows, they were able toissue Flash Flood/Debris Watches during the most intense storms (Wilson, 1997).This would be especially valuable for developments adjacent to burned watersheds.4. Post warning signs in areas of potential slope instability5. Encourage homeowners to use landscaping methods that help stabilize the hillsides.6. Incorporate recommendations for potential slope instability into geologic and soilengineering reports for additions and new grading.7. Educate the public about slope stability, including the importance of maintainingdrainage devices. USGS Fact Sheet FS-071-00 (May, 2000) and the CGS Note 33(November, 2001) provide public information on landslide and mudslide hazards. Theseare available on the internet (see Appendices A and B).Landslide Mitigation Action ItemsThe landslide mitigation action items below provide direction on specific activities that the City,organizations, and residents of Glendale can undertake to reduce risk and prevent loss fromlandslide events. Each action item is followed by ideas for implementation, which can be usedby the steering committee and local decision makers in pursuing strategies for implementation.Short Term - Landslide #l:Action Item: Improve knowledge of landslide hazard areas and understanding of vulnerabilityand risk to life and property in hazard-prone areas.2006 PAGE 9 - 13
Natural Hazards Mitigation PlanCity of Glendale, CaliforniaSection 9 – LandslidesIdeas for Implementation:♦ Update the landslide map for the city of Glendale to show areas where rockfalls,debris flows and surficial mass wasting events are reported, especially during wetwinters.♦ Develop public information to emphasize economic risk when building onpotential or historical landslide areas.Coordinating Organization:Timeline:Plan Goals Addressed:Constraints:Hazard Mitigation Advisory Committee1 -2 YearsProtect Life and PropertyPending Funding and Available PersonnelShort Term - Landslide #2:Action Item: Encourage construction and subdivision design that can be applied to steepslopes to reduce the potential adverse impacts from development.Ideas for Implementation:♦Increase communication and coordination between the City’s Departments.Coordinating Organization:Timeline:Plan Goals Addressed:Constraints:Hazard Mitigation Advisory Committee1 – 2 YearsIncrease awareness of mitigation issues through thecoordination of all City resources and departments.Pending Funding and Available PersonnelShort Term - Landslide #3:Action Item: Identify safe evacuation routes in high-risk debris flow and landslide areas.Ideas for Implementation:♦ Identify potential debris removal resources.♦ Increase participation in regional committee planning for emergencytransportation routes.♦ Identify and publicize information regarding emergency transportation routes.Coordinating Organization: Public Works, EngineeringTimeline:1 – 3 YearsPlan Goals Addr essed: Protection of Life and more efficient response ofemergency personnel.Constraints:Pending Funding and AvailablePersonnel2006 PAGE 9 - 14
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City CouncilDave Weaver, MayorRafi
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Table 4-2: STAPLEE Ranking of Actio
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NOTES:This map is intended for gene
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City of GlendaleUpdateHazard Mitiga
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Similar to Safety ElementIncludesEa
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HospitalsPartnershipsWithin City an
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Impact on CityMost significant area
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Glendale (PDF) - Hazard Mitigation Web Portal - State of California

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