DOCSLIB.ORG

California Geological Survey Debris Flow Inundation

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
California Geological Survey Debris Flow Inundation M EMORANDUM DATE: OCTOBER 31, 2018 TO: Mr. William R. Short Acting State Geologist California Geological Survey 801 K Street, MS 12-20 Sacramento, CA 95814 FROM: Jeremy Lancaster (CGS - Acting Supervising Engineering Geologist) Team Lead SUBJECT: Holy Fire Debris Flow Inundation Hazard Assessment within Riverside County Cal OES Mission #: Deployment Date: 2018-SREOC-51612 September 9, 2018 Team Members (CGS): Jeremy Lancaster – Team Lead (PG, CEG) Don Lindsay – Co Lead (PG, CEG, CE, GE) Brian Swanson (PG, CEG) Pete Roffers (PG, GIS Support) Sol McCrea (CFM, GIS Support) Introduction The Holy Fire began on August 6, 2018 in Holy Jim Canyon on the upper west flank of the Santa Ana Mountains. The fire burned 23,136 acres of land within Riverside and Orange counties before it was fully contained on September 13, 2018. Eighty percent (80%) of the burn area was within the Cleveland National Forest and the remainder was within private State Responsibility Areas or Riverside County. The fire destroyed twelve residences in Orange County and six more in Riverside County. Governor Brown declared a state of emergency for Riverside and Orange counties on August 9th. A U. S. Forest Service (USFS) Burn Area Emergency Response (BAER) Team was mobilized to validate the Soil Burn Severity (SBS) map and to assess potential post-fire hazards and mitigation for areas under Federal responsibility (USFS, 2018). Most of the Holy Fire area had not burned within the prior 40 to 70 years and the BAER team found that 85% of the area burned at moderate or high severity soil burn severity, which is unusually high (Nicita and Halverson, 2018). The validated SBS map was submitted to the U. S. Geological Survey Mr. William R. Short October 31, 2018 Holy Fire Debris Flow Inundation Hazard Assessment Riverside County – Cal OES Mission Task No. 2018-SREOC-51612 (USGS) post-wildfire landslide hazards group, where models of potential debris flow probability and volume were generated for the Holy Fire on August 22, 2018 (USGS, 2018). This modeling indicates a high probability for debris flows in the major canyons within the burn area under expected rainfall intensities and for generation of substantial volumes of debris. Due to the increased potential for debris flows and flooding under post-fire conditions and the presence of extensive residential development down-slope of the burn area, particularly in Riverside County, CAL FIRE mission-tasked a California Watershed Emergency Response Team (WERT) to assess potential Values-at-Risk (VARs). CAL FIRE and CGS led the response team with support from DWR, and the team coordinated closely with the USFS BAER Team and with representatives of the Riverside County Flood Control and Water Conservation District (RCFCWCD) throughout the response effort. The WERT identified 79 VARs and presented a summary of findings to Riverside County personnel at a close-out meeting on August 30 to assist in the county’s initial response planning efforts. The WERT report was finalized and posted on the CAL FIRE website on September 28, 2018 (CAL FIRE, 2018a). Most of the VARs identified by the WERT are within Riverside County. Purpose and Scope Riverside County requested additional assistance through CalOES for CGS to prepare maps illustrating areas subject to high and low energy debris flow inundation in Riverside County, following the approach developed in the aftermath of the January 9, 2018 Santa Barbara debris flow event (see attachment in Thomas Fire WERT report (CAL FIRE, 2018b)). In response to the Cal OES mission task request, CGS assembled a team with a background in geomorphology and debris flow hazard assessmentPreli minar y , and GIS support personnel, to conduct the requested assessment. CGS met with RCDCWCD staff on September 11, 2018 and agreed on the following scope of work: • Task 1: Conduct field review and appraisal of existing available data. Identify and recommend acquisition of additional data. • Task 2: Review and provide input to preliminary hazard mapping developed by the county. • Task 3: Rapidly map the potential extent of debris flows and sediment-laden floods within and down gradient of the Holy Fire burn perimeter within Riverside County based on current conditions, including: Distribution, age and type of alluvial fan deposits. Identification and position of alluvial fan topographic apices, and possible hydrographic apices. Presence of features on the landscape suggestive of past debris flow activity. Map and catalog “accessible” locations that may impact the conveyance capacity of local channels (i.e. channel constrictions or “choke points”). Consideration of event-based inundation. scenarios developed for downstream urbanized areas 2 Mr. William R. Short October 31, 2018 Holy Fire Debris Flow Inundation Hazard Assessment Riverside County – Cal OES Mission Task No. 2018-SREOC-51612 • Task 4: Assist Riverside County in the development of a decision matrix based on four levels of risk tiered to four different triggering rainfall events that could be used to support operational response decisions. Develop recommendations for additional work Develop this project report Task 1 of this assessment began with reconnaissance field work from September 10 to 12, 2018, and was followed by discussions with the county and recommendations for additional information, including, high resolution lidar, aerial photography, and hydrology data. Task 2 was completed at the request of RCFCWD on 9/26/2018 by reviewing the “draft Holy Fire Risk Map” prepared by the county. After historic aerial photos of the area were assembled and lidar imagery was obtained and processed by RCFCWCD to produce detailed, post-fire topography, CGS completed Task 3 field mapping between October 10 through 12. An overview of geomorphic conditions by canyon and table of aerial photo review notes is attached in Appendix B and C, respectively. The results of the above listed tasks are included in this report and its associated attachments. As with the January 2018 Santa Barbara County response, the primary objective of Task 3 is to rapidly identify channel constrictions where avulsions may occur during storm events and to qualitatively delineate areas of potential inundation by high and low energy flows. Procedures for this task include: • Review of historic aerial photography to Prelie minar y valuate geomorphic expression of past flood and debris flow events in order to characterize recent flood and debris flow activity • Review of historic aerial photography and locations where manmade alterations may influence flow paths of debris flows. • Map and catalog channel constrictions (natural or manmade) or bends that may limit, or block, the conveyance capacity of local channels, which could force future flows out of their channels (avulsion) and generate debris flows and debris-laden flooding away from established flow paths. • Consideration of mapped channel constrictions and existing channel capacities by reviewing HEC RAS models at channel constriction locations. • Preparation of maps illustrating areas subject to potential high and low energy flows. The purpose of this rapid approach is to provide a general understanding of the potential extent of debris flow inundation based on geomorphic factors. Quantitative modeling of potential flow paths was not a part of the scope of work. Concurrent with the preparation of the qualitative high and low energy map, CGS provided assistance to Riverside County emergency management personnel, RCFCWCD, and CalOES in the development of a decision matrix based on four levels of risk tiered to four different triggering rainfall events that could be used by emergency response managers and personnel to develop appropriate operational needs and logistics. The rainfall thresholds in this matrix were based on published relationships from previous events, debris flow thresholds identified by the USGS for the Holy Fire area combined with input from the NWS, and input from Riverside County. 3 Mr. William R. Short October 31, 2018 Holy Fire Debris Flow Inundation Hazard Assessment Riverside County – Cal OES Mission Task No. 2018-SREOC-51612 Background The following sections provide general background information on fire-induced effects on runoff and the unique characteristics and hazards associated with debris flows, mud flows, and flash floods. The observations and results obtained during this assessment are discussed thereafter. Discussions pertaining to the geologic, geomorphic, and climatic characteristics within the impacted areas and upslope source areas are provided separately in the WERT and BAER Team reports already completed for the Holy Fire (CAL FIRE, 2018a; USFS, 2018). Fire-induced Impacts on Runoff Vegetation on natural, unburned slopes supports and protects the soil, creates a litter covered surface that acts to reduce raindrop impact and soil detachment, intercepts rainfall and provides evapotranspiration that reduces the availability of water to generate runoff. When the vegetation is burned during wildfires, the benefits provided by the vegetative cover are lost and runoff in the watershed is increased, both in overall streamflow volume and peak flow. Thus, post-fire flows are flashier than normal with more frequent flood events, especially in the first two to five years following a fire (Cannon et al., 2008; USGS, 2005). For this reason, post-wildfire runoff can be disproportionately large for the size of the watershed (Moody et.al., 2013). In general, the denser the pre-fire vegetation and the longer the fire residence time, the more severe the effects of the fire are on soil hydrologic function. This is because aside from consuming vegetation and vegetative litter, fire can promote the formation of water repellent layers at or near the surface of soils which subsequently increases runoff. The two primary ways in which soil infiltration is affected by fire is by soil sealing and the creation of water-repellent (hydrophobic) soils near the surface. Soil sealing is caused by the infilling of surface voids in Preli minar y the soil by fine-grained clay and ash exposed and mobilized by raindrop impact after fire (Larsen et al., 2009).
Load more

Recommended publications
  • CAL FIRE California Climate Investments (CCI) Program - Forest Health Research Grant Applications -- FY 2020/2021 2021/2022
    CAL FIRE California Climate Investments (CCI) Program - Forest Health Research Grant Applications -- FY 2020/2021 2021/2022 Requested Research Project ID Applying Organization Project Title County Brief Project Description Funds Project Type We leverage two existing long-term studies, Treatment Alternatives for Young Stand Resilience and Fire-Fire Surrogate, at Blodgett Experimental Forest to determine how prescribed fire Influence of prescribed burn season on tree season and forest age influence tree survival, soil microbial University of California, 20-RP-AEU-078 survival, soil microbial resilience, and carbon El Dorado $500,000 resilience, carbon strength, and greenhouse gas (GHG) General Riverside cycling in mixed conifer forests emissions in mixed conifer forests. Our team will address whether conducting prescribed fires in spring vs. fall reduces or exacerbates GHG emissions to help inform forest management plans. Fire weather forecasts are typically available for the next 7-14 days. This study will develop and extend fire weather forecast capability out to 6 weeks (i.e., subseasonal time scale), from Development of Subseasonal Fire Weather seven global forecast models. Machine learning will help quantify 20-RP-AEU-118 University of Miami Forecasts for Prescribed Fire and Wildfire Statewide $500,000 and improve forecast reliability and accuracy. A prototype system General Decision Support: Accuracy and Reliability will issue real-time forecasts to the public via a web application, which will allow for improved allocation of resources, planning, and public messaging for land and air managers, emergency response, and other stakeholders. This project will investigate fire spread between discrete fuels separated by a gap, specifically between discrete pieces of vegetation and between vegetation and structures through Worcester Polytechnic Development of Engineering Tools for Exposure 20-RP-AEU-172 Amador $500,000 experiments and modeling.
    [Show full text]
  • Geomorphic Classification of Rivers
    9.36 Geomorphic Classification of Rivers JM Buffington, U.S. Forest Service, Boise, ID, USA DR Montgomery, University of Washington, Seattle, WA, USA Published by Elsevier Inc. 9.36.1 Introduction 730 9.36.2 Purpose of Classification 730 9.36.3 Types of Channel Classification 731 9.36.3.1 Stream Order 731 9.36.3.2 Process Domains 732 9.36.3.3 Channel Pattern 732 9.36.3.4 Channel–Floodplain Interactions 735 9.36.3.5 Bed Material and Mobility 737 9.36.3.6 Channel Units 739 9.36.3.7 Hierarchical Classifications 739 9.36.3.8 Statistical Classifications 745 9.36.4 Use and Compatibility of Channel Classifications 745 9.36.5 The Rise and Fall of Classifications: Why Are Some Channel Classifications More Used Than Others? 747 9.36.6 Future Needs and Directions 753 9.36.6.1 Standardization and Sample Size 753 9.36.6.2 Remote Sensing 754 9.36.7 Conclusion 755 Acknowledgements 756 References 756 Appendix 762 9.36.1 Introduction 9.36.2 Purpose of Classification Over the last several decades, environmental legislation and a A basic tenet in geomorphology is that ‘form implies process.’As growing awareness of historical human disturbance to rivers such, numerous geomorphic classifications have been de- worldwide (Schumm, 1977; Collins et al., 2003; Surian and veloped for landscapes (Davis, 1899), hillslopes (Varnes, 1958), Rinaldi, 2003; Nilsson et al., 2005; Chin, 2006; Walter and and rivers (Section 9.36.3). The form–process paradigm is a Merritts, 2008) have fostered unprecedented collaboration potentially powerful tool for conducting quantitative geo- among scientists, land managers, and stakeholders to better morphic investigations.
    [Show full text]
  • Seasonal Flooding Affects Habitat and Landscape Dynamics of a Gravel
    Seasonal flooding affects habitat and landscape dynamics of a gravel-bed river floodplain Katelyn P. Driscoll1,2,5 and F. Richard Hauer1,3,4,6 1Systems Ecology Graduate Program, University of Montana, Missoula, Montana 59812 USA 2Rocky Mountain Research Station, Albuquerque, New Mexico 87102 USA 3Flathead Lake Biological Station, University of Montana, Polson, Montana 59806 USA 4Montana Institute on Ecosystems, University of Montana, Missoula, Montana 59812 USA Abstract: Floodplains are comprised of aquatic and terrestrial habitats that are reshaped frequently by hydrologic processes that operate at multiple spatial and temporal scales. It is well established that hydrologic and geomorphic dynamics are the primary drivers of habitat change in river floodplains over extended time periods. However, the effect of fluctuating discharge on floodplain habitat structure during seasonal flooding is less well understood. We collected ultra-high resolution digital multispectral imagery of a gravel-bed river floodplain in western Montana on 6 dates during a typical seasonal flood pulse and used it to quantify changes in habitat abundance and diversity as- sociated with annual flooding. We observed significant changes in areal abundance of many habitat types, such as riffles, runs, shallow shorelines, and overbank flow. However, the relative abundance of some habitats, such as back- waters, springbrooks, pools, and ponds, changed very little. We also examined habitat transition patterns through- out the flood pulse. Few habitat transitions occurred in the main channel, which was dominated by riffle and run habitat. In contrast, in the near-channel, scoured habitats of the floodplain were dominated by cobble bars at low flows but transitioned to isolated flood channels at moderate discharge.
    [Show full text]
  • Flash Point the Official Publication of the San Luis Obispo Fire Investigation Strike Team, Inc
    Flash Point The Official Publication of the San Luis Obispo Fire Investigation Strike Team, Inc. In this issue Forensic Fire Death Investigation Class 2018 FFDIC Progress Report Proctor Profiles John Madden Awards Active Arson Cases Carr Fire Jeremy Stoke SLOFIST Executive Board John Madden, CEO Barb Kessel, CFO Dr. Elayne Pope, Chief of Train- ing Another successful class with live fire demonstrations in San Luis Obispo. Dr. Robert Kimsey, Secretary- Students from all over the world came to attend the week long class. A spe- Forensic Sciences Director cial thank you to all the proctors and logistical support staff who made this Tim Eckles, Chief of Safety another great workshop. Dennis Byrnes, Chief of Logistics Jeff Zimmerman. Editor SLOFIST is a 501 © (3) Non-profit organization Box 1041, Atascadero, CA 93423 Www.slofist.org Copyright 2018 SLOFIST Inc. Class Objectives Met with Great Results According to John Madden this was the best class so far. A special thank you SLOFIST Directors to all the proctors and logistical support staff who made this another great Jeremy Davis, Chairman of BOD workshop. Hours of preparation made the program run smoothly . The pro- Eric Emmanuelle, Director posed dates for next years class is June 24-28, 2019, please mark your cal- Jeremy Kosick, Director, Web Master endars and plan on attending. Dr. Alison Galloway, Director Several students had the op- Danielle Wishon, Director portunity to explore career options in both the fire ser- vices and law enforcement fields. Intern Lovey Corneil got to suit up and extinguish one of the live burns and at- tack a fire with CDC fire crew in full PPE.
    [Show full text]
  • Variable Hydrologic and Geomorphic Responses to Intentional Levee Breaches Along the Lower Cosumnes River, California
    Received: 21 April 2016 Revised: 29 March 2017 Accepted: 30 March 2017 DOI: 10.1002/rra.3159 RESEARCH ARTICLE Not all breaks are equal: Variable hydrologic and geomorphic responses to intentional levee breaches along the lower Cosumnes River, California A. L. Nichols1 | J. H. Viers1,2 1 Center for Watershed Sciences, University of California, Davis, California, USA Abstract 2 School of Engineering, University of The transport of water and sediment from rivers to adjacent floodplains helps generate complex California, Merced, California, USA floodplain, wetland, and riparian ecosystems. However, riverside levees restrict lateral connectiv- Correspondence ity of water and sediment during flood pulses, making the re‐introduction of floodplain hydrogeo- A. L. Nichols, Center for Watershed Sciences, morphic processes through intentional levee breaching and removal an emerging floodplain University of California, Davis, California, USA. restoration practice. Repeated topographic observations from levee breach sites along the lower Email: [email protected] Cosumnes River (USA) indicated that breach architecture influences floodplain and channel hydrogeomorphic processes. Where narrow breaches (<75 m) open onto graded floodplains, Funding information California Department of Fish and Wildlife archetypal crevasse splays developed along a single dominant flowpath, with floodplain erosion (CDFW) Ecosystem Restoration Program in near‐bank areas and lobate splay deposition in distal floodplain regions. Narrow breaches (ERP), Grant/Award Number: E1120001; The opening into excavated floodplain channels promoted both transverse advection and turbulent Nature Concervancy (TNC); Consumnes River Preserve diffusion of sediment into the floodplain channel, facilitating near‐bank deposition and potential breach closure. Wide breaches (>250 m) enabled multiple modes of water and sediment transport onto graded floodplains.
    [Show full text]
  • 2416 Cades Way Vista, California 92081 (760) 599–1813 David
    20190628-5298 FERC PDF (Unofficial) 6/28/2019 4:41:30 PM 2416 Cades Way Vista, California 92081 (760) 599–1813 [email protected] June 28, 2019 The Honorable Kimberly D. Bose, Secretary Federal Energy Regulatory Commission 888 First Street NE Washington, DC 20426 RE: Lake Elsinore Advanced Pumped Storage Project FERC Project No. 14227 Submittal of Study 28 Fire Study Dear Secretary Bose, The Nevada Hydro Company, (the “Company”) filed an application for an original license with the Federal Energy Regulatory Commission (“Commission”) for the Lake Elsinore Advanced Pumped Storage facility, FERC Project No. 14227 (the “Project”) on October 2, 2017. In response to the Commission’s June 15, 2018 request for additional studies, January 22, 2019 request for additional information, and May 13, 2019 letter approving the Fire Study Plan, with modifications, the Company herein submits its Fire Study Report (Study 28). The Commission’s May 13, 2019 letter requested the Company to file the results of the modified Fire Study by June 30, 2019. The Company has actively solicited information required to complete the Fire Study Report from the U.S. Department of Agriculture, Forest Service (“USFS”) and the enclosed study report represents the Company’s best efforts to complete the study in the absence of the USFS information. The Company notes that there are a small number of yellow highlights throughout the document – particularly Section 6 and Section 7 – where additional operation-specific information is needed from the USFS. While more detailed information specific to USFS operations and capabilities will be helpful to understand the impact of the proposed project on USFS fire suppression capabilities, the information provided in the Study Report submitted herewith addresses the objectives of the Commission’s June 30, 2019 study request letter by including a robust analysis of fire risk and fuel loading, potential project effects on fire suppression activities, and the availability of the upper reservoir water for firefighting.
    [Show full text]
  • Unit Strategic Fire Plan
    Unit Strategic Fire Plan CAL FIRE/Riverside County Fire May 2020 CAL FIRE/Riverside Unit Strategic Fire Plan Page 1 Table of Contents SIGNATURE PAGE .........................................................................................3 EXECUTIVE SUMMARY ..................................................................................4 SECTION I: UNIT OVERVIEW UNIT DESCRIPTION .......................................................................................6 UNIT PREPAREDNESSAND FIREFIGHTING CAPABILITIES ............................... 12 SECTION II: COLLABORATION DEVELOPMENT TEAM .................................................................................................................... 14 SECTION III: VALUES AT RISK IDENTIFICATION OF VALUES AT RISK ............................................................ 17 COMMUNITIES AT RISK ................................................................................. 22 SECTION IV: PRE‐FIRE MANAGEMENT STRATEGIES FIRE PREVENTION ........................................................................................ 24 ENGINEERING & STRUCTURE IGNITABILITY................................................... 27 INFORMATIONANDEDUCATION ................................................................... 28 VEGETATION MANAGEMENT ..................................................................... 29 SECTION V: PRE‐FIRE MANAGEMENT TACTICS DIVISION / BATTALION / PROGRAM PLANS .................................................. 41 APPENDIX A: HIGH PRIORITY PRE‐FIRE PROJECTS .......................................
    [Show full text]
  • Holy Fire Watershed Report
    Burned Area Emergency Response Holy Fire Cleveland National Forest Hydrology and Watershed Specialist Report August 25, 2018 Overview of Horsethief Canyon above Interstate 15 Submitted by: Kelsha L. Anderson, Angeles National Forest Hydrologist I. Objectives This report summarizes the results from the hydrologic assessment of the Holy Fire in the center of the Santa Ana Mountains as part of the Burned Area Emergency Response (BAER). II Potential Values at Risk Values at Risk (VARs) on Forest Service land (FS) are addressed in Appendix D. Many VARs that could be impacted by the fire are on adjacent private, state, county, or local government lands. The State Watershed Emergency Response Team conducted a detailed analysis of non-FS VARs that will be published in a separate document. The FS BAER team and State WERT team collaborate and share information during post-fire assessments to ensure VARs are identified. On private lands, the primary contact for treatments is the USDA Natural Resources Conservation Service (NRCS). III. Resource Condition Assessment Fire and Site Description The Holy Fire started on August 06, 2018 at 1:30pm (suspected arson). As of August 21, 2018 the fire had burned 22,982 acres (90% contained). The burn occurred adjacent to California State Highway 74 and Interstate 15. Much of the Holy Fire last burned between 1940-80’s. Table 1: Fire History in Holy Fire Perimeter Holy Fire area impacted Fires of Note Coldwater Canyon Silverado (1987), Unnamed (1942) Mayhew Canyon Indian (1966), Wright Cyn (1942) Indian Canyon
    [Show full text]
  • Finley Creek Alluvial Fan Geomorphic and Hydraulic Analyses and Implications for Restoration
    FINLEY CREEK ALLUVIAL FAN GEOMORPHIC AND HYDRAULIC ANALYSES AND IMPLICATIONS FOR RESTORATION Jeanne E. Godaire, Geomorphologist, Bureau of Reclamation, Denver, Colorado, [email protected]; Sean Kimbrel, Hydraulic Engineer, Bureau of Reclamation, Denver, Colorado, [email protected] INTRODUCTION Finley Creek, located on the Olympic Peninsula in western Washington, is a tributary of the Quinault River upstream of Lake Quinault. Previous observers have noted recent progressive lateral movement of the channel toward the eastern side of the Finley Creek alluvial fan, and aggradation and perching of the channel in the vicinity of the North Shore Road Bridge. The relationship between Finley Creek and the Quinault River is one of a long-term dynamic interaction between a large alluvial fan and mainstem river. The current sediment production from Finley Creek is of critical concern due to ongoing dredging at North Shore Road Bridge and the potential environmental effects of the dredging both upstream and downstream of the bridge (NPS, 2005) and sediment deposition and lateral Quinault River channel migration (GeoEngineers, 2011). Previous studies on Finley Creek have documented historical channel change using rectified aerial photography (Bountry et al. 2005) and the problems associated with aggradation and erosion on sections of Finley Creek (Kennard, 2009; Smillie, 2001; Jackson and Smillie, 1994). The objectives of this study are to (1) provide a geomorphic analysis of conditions on Finley Creek in order to place current conditions into a long term context and to identify areas of potential avulsion and lateral erosion; and (2) conduct hydraulic modeling of various scenarios to guide the evaluation of alternatives for addressing aggradation near the North Shore Road Bridge and improvement of aquatic habitat on Finley Creek.
    [Show full text]
  • 2018 FIRE DEPARTMENT COMPARISON: Call Average Per Fire Agency Annual Budget Number of Stations Calls Per Year Population Total Personnel Station
    IDYLLWILD FIRE PROTECTION DISTRICT 2018/19 FY First Qtr Review OBJECTIVES: • 18/19 FY Department Overview: • Meeting Our Mission. ✓Ensuring the Highest Quality and Professional Service. ❑ Review response data. ❑ Review the IFPD Training and Certification program. ❑ Discuss our Focus and Direction. ❑ Looking Ahead. ✓Financial Responsibility, Efficiency and Reliability. ❑ Revenue review. ❑ Expenditure review. ❑ Fee for service review. (ambulance/mutual aid) ❑ Parity review. OUR MISSION The mission of the Idyllwild Fire Protection District is to protect lives, property and the environment through the provision of comprehensive integrated “All Risk” Fire Protection, Emergency Medical Services and other Emergency Services that result in social, economic and environmental benefits for the people of Idyllwild. OUR CITIZENS ARE OUR MISSION IFPD Response Data (10yr avrg. ) • Medical Aid Service 676 77% • Fire 38 5% • Hazardous Conditions 26 3% • Public Service 64 8% • False Alarm 37 4% • Special Incident type/Other 27 3% • TOTALS: 868 100% IFPD RESPONSE DATA: 2017/18 Response Data 2018/19 Response Data 5.48% 2.74% 6.04% 1.13% False Alarm Special Inc. False Alarm Special Inc. 6.72% 4.15% Public Service Public Service 3.24% 3.40% Hazardous Cond Hazardous Cond 6.72% 7.55% Fire Fire 75.09% 77.74% EMS EMS RESPONSE DATA (CONT.) • Average call Statistics: 2018/19 • Daily : % of overlapping calls: 39.57% ✓ Incident Average – 2.38 Dispatch Times ✓ Daily Transport Average – 1.5 Dispatch to Responding: ▪ Monthly : EMS Calls: .42 sec. ✓ Incident Average – 72 Fire Calls: 1:01 min/sec. ✓ Monthly Transport Average – 44 ▪ Annually : Dispatch to on Scene: ✓ Incident Average – 800-1100 (868 – 10yr.
    [Show full text]
  • WUI Program...1
    Page 1 Ferguson Fire - Brush Engine 1 Crew INSIDE THIS QUARTER: WUI Program................... 1 Calls & Response Stats.... 2 Mutual Aid Assignments. 2 This year’s WUI program was a success with a total clearance of 235 Prevention Unit Stats...... 3 acres. The crew performed fuels reduction around the residences, tribal buildings, and road system on the reservation. Defensible space Traffic Accidents.............. 4 was maintained up to 100 feet around the homes and tribal buildings. Fireline Medic.................. 4 The program runs each year from June through September with a Training & Testing........... 5 crew between 7 to 10 individuals, including a crew boss and assistant Misc.................................. 6 crew boss. The Bureau of Indian Affairs funded Email the Battalion Chief’s this year’s WUI program by way of [email protected] mkennedy@pechanga -nsn.gov grant at a total of $109,252.00. [email protected] Or Call Pechanga Fire Department at (951)770-6001 Page 2 Pechanga Fire Department Quarterly Report Pechanga Fire Department personnel actively participated in this year’s wildland fires, CALLS both operational and administratively. The following is a breakdown of fire personnel that participated in mutual aid assignments this quarter. EMS Calls 273 Fires 10 . FC Chris Burch: Dispatched to the Klamathon Fire in Siskiyou County on July 5th, and Public Assistance 2 the Carr Fire in Shasta County on July 25th as Planning Section Chief, working closely Good Intent 27 with the Incident Commander to plan and organize the tactics, strategy and False Alarms 3 resources needed to suppress the fire. Hazardous Condition 1 .
    [Show full text]
  • FRIPP INLET, SOUTH CAROLINA Timothy W. Kana P
    SCALES & SIGNATURES OF EPISODIC SAND BYPASSING AT A TIDE-DOMINATED INLET — FRIPP INLET, SOUTH CAROLINA Timothy W. Kana PhD, PG1, Steven B Traynum MS1, and Haiqing Liu Kaczkowski PhD, PE1 This paper provides a case example of meso-scale sand circulation and volumes in a tide-dominated inlet (Fripp Inlet, South Carolina, USA) and the adjacent barrier island. Episodic bypassing is the dominant process controlling shoreline change in this area (Gaudiano & Kana 2001). The scale of bypassing in this case has proven to be more than adequate to restore a highly eroding armored beach along Fripp Island. Upward of 2.7 million cubic meters (m³) shifted from the ebb-tidal delta of Fripp Inlet to a central oceanfront area of Fripp Island between 1989 and 2012. This volume, representing roughly 10 percent of the ebb-tidal delta volume, provided natural nourishment equivalent to nearly 600 cubic meters per meter of shoreline (m³/m) along the nearly 5-kilometer (km) long barrier island. The volume density varied greatly with some beach segments widening by more than 500 m. Prior to the bypassing events, there was no beach at high tide along most of the island. The paper discusses the possible trigger for recent bypassing events and documents changes in Fripp Inlet. Channel rotation into a seawall, southerly deflection of the ebb-delta centroid, and large inputs of sand from the adjacent barrier island appear to have produced conditions promoting large releases of sand to Fripp Island. While the influx of sand has restored much of the oceanfront, full restoration of a sandy beach along the inlet margin will require a channel avulsion or realignment such that the principal erosion-causing process—ebb jet in the main channel—no longer encroaches on the seawall.
    [Show full text]