1 Resolution No. 2025-09
May 22, 2025
RESOLUTION NO. 2025-09
A RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF
MORENO VALLEY, CALIFORNIA RECOMMENDING THAT THE CITY
COUNCIL ADOPT THE UPDATED CITY OF MORENO VALLEY LOCAL
HAZARD MITIGATION PLAN 2022 -2023 AND INCORPORAT E THE
PLAN INTO THE SAFETY ELEMENT OF THE 2006 GENERAL PLAN
(GENERAL PLAN AMENDMENT PEN25-0066)
WHEREAS, the City of Moreno Valley is a general law city and a municipal corporation of the State of California (City); and
WHEREAS, the City is subject to various natural, human- caused, and technological hazards; and
WHEREAS, the goal of a Local Hazard Mitigation Plan (LHMP) is to develop potential mitigation strategies to reduce and/or eliminate the potential loss of life, property damage, and environmental impacts caused by natural, human- caused, and technological hazards; and
WHEREAS, the Disaster Mitigation Act of 2000 requires all cities, counties, and special districts to update a LHMP every five (5) years in order to be eligible for and to receive disaster mitigation funding from the Federal Emergency Management Agency (FEMA); and
WHEREAS, the City established a Planning Team of various community stakeholders and partners and undertook a comprehensive planning effort in developing the LHMP by organizing resources, assessing risks, developing a mitigation strategy, and establishing a LHMP monitoring process; and
WHEREAS, the City developed the updated LHMP in accordance with the Disaster Mitigation Act of 2000, followed FEMA's 2011 and 2023 Local Hazard Mitigation Plan policy guidance; and
WHEREAS, pursuant to the provisions of Section 9.02.200 (Public Hearing and Notification Procedures) of the Moreno Valley Municipal Code and Government Code section 65905, a public hearing was scheduled before the Moreno Valley Planning Commission for May 22, 2025, and notice thereof was duly published and posted in the Press-Enterprise newspaper on May 10, 2025; and
WHEREAS, on May 22, 2025, the Planning Commission, after providing the required notice, conducted the duly -noticed public hearing as prescribed by law to consider the Local Hazard Mitigation Plan and General Plan Amendment at which time all interested persons were provided with an opportunity to testify and present evidence, the Planning Commission voted to recommend that the City Council adopt the Local Hazard Mitigation Plan and incorporate it into the Safety Element of the General Plan. 2 Resolution No. 2025-09
May 22, 2025
NOW, THEREFORE, THE PLANNING COMMISSION OF THE CITY OF MORENO VALLEY, CALIFORNIA, DOES HEREBY RESOLVE AS FOLLOWS:
Section 1. RECITALS AND EXHIBITS
That the foregoing Recitals and the attached Exhibits are true and correct and are hereby incorporated by reference.
Section 2. EVIDENCE AND RECORD
That the Planning Commission has considered all the evidence submitted in the record of proceedings for consideration of the Proposed Project, including, but not limited to, the following:
• Moreno Valley General Plan (2006);
• All public notices issued by the City of Moreno Valley with regard to the Local Hazard Mitigation Plan and associated General Plan Amendment; • All staff reports, attachments, and related documents prepared by the City of Moreno Valley for the Local Hazard Mitigation Plan and associated General Plan Amendment;
• Testimony and/or comments from all persons provided in written format or correspondence at, or prior to, the public hearing; and • All documents and websites used, referenced, or incorporated by reference to the Local Hazard Mitigation Plan and associated General Plan Amendment.
Section 3. RECOMMENDATION OF APPROVAL OF THE LOCAL HAZARD
MITIGATION PLAN AND ASSOCIATED GENERAL PLAN
AMENDMENT
That based on evidence submitted in the record of the proceedings of the Local Hazard Mitigation Plan and associated General Plan Amendment, the Planning Commission hereby recommends that the City Council adopt the Local Hazard Mitigation Plan, which consists of:
• General Plan Amendment (PEN25-0066), that in summary, amends the applicable General Plan to incorporate by reference the Local Hazard Mitigation Plan, which should be approved and adopted by Resolution.
Section 4. EFFECTIVE DATE
That this Resolution shall take effect immediately upon its adoption.
Section 5. SEVERABILITY
That if any provision, section, paragraph, sentence or word of this Resolution be rendered or declared invalid by any final court action in a court of competent jurisdiction or by reason of any preemptive legislation, the remaining provisions, sections, paragraphs, sentences or words as hereby adopted shall remain in full force and effect. 3 Resolution No. 2025-09
May 22, 2025
Section 6. CERTIFICATION
That the City Clerk shall certify as to the adoption of this Resolution and shall cause the same to be processed in the manner required by law.
Section 7. REPEAL OF CONFLICTING PROVISIONS
That all provisions of any resolution in effect prior to the effective date of this Resolution as adopted by the Planning Commission that are in conflict with the provisions of this Resolution are hereby repealed.
Section 8. CERTIFICATION
That the Planning Commission Secretary shall certify as to the adoption of this Resolution and shall cause the same to be processed in the manner required by law. [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]
4 Resolution No. 2025-09
May 22, 2025
PASSED AND ADOPTED THIS 22nd day of May, 2025.
CITY OF MORENO VALLEY
PLANNING COMMISSION
____________________________________
Alvin DeJohnette, Chairperson
ATTEST:
__________________________________________
Angelica Frausto-Lupo, Community Development Director
APPROVED AS TO FORM:
__________________________________________
Steven B. Quintanilla, City Attorney
Exhibits:
Exhibit A: Local Hazard Mitigation Plan
5 Resolution No. 2025-09
May 22, 2025
EXHIBIT A
LOCAL HAZARD MITIGATION PLAN
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Revised: 2022-23
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Moreno Valley Hazard Mitigation Plan
Revised: December 2022
TABLE OF CONTENTS
Plan Adoption ................................................................................................................ 10 Executive Summary ...................................................................................................... 13 Chapter 1: Community Profile ...................................................................................... 16
1.1 Planning Area Description .................................................................................... 16
1.2 Population/Demographics ................................................................................. 17 Table 1-2: Population .............................................................................................. 17 Table 1-2.1: Ethnic Breakdown ............................................................................... 17
1.3 Climate ............................................................................................................... 19 Table 1-3: Moreno Valley Climate by Month .......................................................... 19
1.4 Land Use ............................................................................................................ 20 Figure 1-4 Land Use Map 2022 – Revised 8/1/22 .................................................. 21 Chapter 2: The Planning Process ................................................................................ 22
2.1 Planning/Coordination ........................................................................................ 22
2.2 Public Participation............................................................................................. 25
2.3 Plan Maintenance .............................................................................................. 27 Table 2.3-1 Examples Of Mitigation Strategy Supporting Documents .................... 29 Chapter 3: Risk Assessment Overview ........................................................................ 33
3.1 Introduction ...................................................................................................... 33
3.2 Inventory of Assets & Building Lifeline Inventory .............................................. 33 Table 3-2: Transportation System Lifeline Inventory .............................................. 34 Table 3-2.1: Utility System Lifeline Inventory ......................................................... 34 Table 3-2.2: Other Critical Facilities ....................................................................... 36 Figure 3-2: Critical Facilities Map – Revised August 1, 2022 .................................. 37 Table 3-2.3: Moreno Valley Historical Sites ........................................................... 38
3.3 Summary of Hazards ....................................................................................... 39 Table 3-3: Moreno Valley Hazard Location, Severity and Probably ........................ 40 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Table 3-3.1: Summary of Relationships of Hazards ............................................... 42 Table 3-3.2: Major Declarations ............................................................................. 43
3.4 Profiling Hazards ............................................................................................. 45 Chapter 4: Earthquake ................................................................................................. 45
4.1 Earthquake Profile – Overview/Location ......................................................... 45 Figure 4-1: Right-Lateral Strike-Slip Fault ............................................................... 46 Figure 4-1.1: city Geologic Faults and Liquefaction – Rev. August 31, 2022 ......... 47 Figure 4-1.2: Moreno Valley Area Ground Shaking Map ....................................... 48
4.1.1 Earthquake Profile – Previous Occurrences ................................................... 49 Table 4-1: History of Major So. California Earthquakes ......................................... 50
4.1.2 Earthquake Profile – Probability of Future Events ........................................... 52 Table 4-1.1: Earthquake Probability near Moreno Valley: ....................................... 52
4.2 Earthquake Vulnerability – Overview/Impact .................................................... 53
4.2.1 Earthquake Vulnerability – Potential Impact and Losses ................................. 53
4.2.2 Building Damage ............................................................................................... 55 Table 4-2: Expected Building Damage by Occupancy ............................................ 55 Table 4-2.1: Expected Damage to Essential Facilities ............................................ 56 Table 4-2.2 Expected Damage to the Transportation Systems .............................. 56 Table 4-2.3: Expected Utility System Facility Damage ........................................... 57 Table 4-2.4: Expected Utility System Pipeline Damage (Site Specific) ................... 57 4-2.3 Casualties ......................................................................................................... 58 Table 4-2.6: Causality Estimates ............................................................................ 58 4-2.4 Economic Loss ................................................................................................. 60 Table 4-2.7: Building-Related Economic Loss Estimates ....................................... 60 Table 4-2.8: Transportation System Economic Losses ........................................... 62 Figure 4-2: Earthquake Scenario- Critical Facilities– Rev. August 16, 2022 .......... 63 Figure 4-2.1: Earthquake Scenario - Transportation (Rail, Highway, Bridges) ...... 64 Moreno Valley Hazard Mitigation Plan
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Figure 4-2.2: Earthquake Scenario - Utility Damage .............................................. 65 Figure 4-2.3: Earthquake Scenario- Commercial Building Damage....................... 66 Figure 4-2.4: Earthquake Scenario - Residential Building Damage ....................... 67 Chapter 5: Wildland and Urban Fires ........................................................................... 68
5.1 Wildland and Urban Fires Profile – Overview .................................................. 68
5.1.1 Wildland and Urban Fires Profile – Previous Occurrences ............................. 68 Table 5-1: History of Fire in Moreno Valley and Surrounding Areas ...................... 69
5.1.2 Wildland and Urban Fires Profile – Probability of Future Events ..................... 70
5.2 Wildland and Urban Fires Vulnerability Overview/ Impact ................................... 70
5.2.1 Wildfire Vulnerability – Potential Loss ............................................................. 71 Table 5-2: Potential Financial Loss Near High Fire Area by Type .......................... 71 Chapter 6: Flooding ...................................................................................................... 73
6.1 Flooding Profile – Overview ............................................................................ 73 Table 6-1: City Maintained Open Channels ............................................................ 74 Figure 6-1: Moreno Valley Flood Zones 100- & 500-Year Zones – Revised July 18, 2022 ........................................................................................................................ 75
6.1.1 Flooding Profile – Previous Occurrences ........................................................ 76 Table 6-1.1: History of Flooding in Moreno Valley ................................................. 76
6.1.2 Flooding Profile – Probability of Future Events ............................................... 76
6.2 Flooding Vulnerability – Overview/Impact ....................................................... 77
6.2.1 Flooding Vulnerability – Repetitive Loss ......................................................... 78
6.2.2 Flooding Vulnerability – Potential Loss ........................................................... 78 Table 6-2: Potential Financial Loss in Flood Zones by Type .................................. 78 Chapter 7: Drought ....................................................................................................... 78
7.1 Drought Profile – Overview ............................................................................. 78
7.1.1 Drought Profile – Previous Occurrences ......................................................... 79 Table 7-1: History of Droughts ................................................................................ 79
7.1.2 Drought Profile – Probability of Future Events ................................................ 80 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
7.2 Drought Vulnerability – Overview/ IMPACT/ Development Trends ...................... 80
7.2.1 Drought Vulnerability – Potential Loss ............................................................ 81 Chapter 8: Landslide .................................................................................................... 81
8.1 Landslide Profile – Overview ........................................................................... 82 Figure 8-1: Moreno Valley Slope Analysis – Revised August 16, 2022 ................. 83
8.1.1 Landslide Profile – Previous Occurrences ...................................................... 84 Table 8-1: History of Landslides ............................................................................. 84
8.1.2 Landslide Profile – Probability of Future Events .............................................. 84
8.2 Landslide Vulnerability – Overview/Impact ...................................................... 84
8.2.1 Landslide Vulnerability – Potential Loss .......................................................... 85 Chapter 9: Insect Infestation ........................................................................................ 85
9.1 Insect Infestation Profile – Overview ............................................................... 85 Figure 9-1: Imported Fire Ant Quarantine .............................................................. 86
9.1.1 Insect Infestation Profile – Previous Occurrences ............................................ 87 Table 9-1: History of Insect Infestation .................................................................. 87 Figure 9-2: West Nile Virus Activity in California 2022 ............................................ 90
9.1.2 Insect Infestation Profile – Probability of Future Events .................................. 91
9.2 Insect Infestation Vulnerability – Overview/Impact .......................................... 91
9.2.1 Insect Infestation Vulnerability – Potential Loss .............................................. 91 Chapter 10: Extreme Weather ...................................................................................... 92
10.1 Extreme Weather Profile – Overview ............................................................ 92
10.1.1 Extreme Weather Profile – Previous Occurrences ........................................ 92 Table 10-1: History of Extreme Weather ................................................................. 93
10.1.2 Extreme Weather Profile – Probability of Future Events ............................... 94
10.2 Extreme Weather Vulnerability – Overview/Impact ....................................... 94 Table 10-2: National Weather Service Weather Advisories .................................... 95
10.2.1 Extreme Weather Vulnerability – Potential Loss ........................................... 97 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Chapter 11: Severe Wind ............................................................................................. 97
11.1 Severe Wind Profile – Overview ................................................................... 97 Table 11-1: National Weather Service Wind Advisories ......................................... 97
11.1.1 Severe Wind Profile – Previous Occurrences ............................................... 98 Table 11-2: History of Severe Wind/Tornadoes Near Moreno Valley .................... 99 Figure 11-1.1: Enhanced Fujita Scale ................................................................... 100
11.1.2 Severe Wind Profile – Probability of Future Events..................................... 100
11.2 Severe Wind Vulnerability – Overview/Impact ............................................ 100
11.2.1 Severe Wind Vulnerability – Potential Loss ................................................. 101 Chapter 12: Dam Failure/Inundation .......................................................................... 102
12.1 Dam Failure/Inundation Profile – Overview ...................................................... 102 Table 12-1: Pigeon Pass and Perris Dam Information Summary ......................... 103
12.1.1 Dam Failure/Inundation Profile – Previous Occurrences ............................... 104
12.1.2 Dam Failure/Inundation Profile – Probability of Future Events .................... 104
12.2 Dam Failure/Inundation Vulnerability – Overview/IMPACT .............................. 104
12.2.1 Dam Failure/Inundation Vulnerability – Potential Loss .................................. 105 Figure 12-2: City of Moreno Valley Evacuation Map – Revised September 6, 2022 .............................................................................................................................. 106 Chapter 13: Pipeline ................................................................................................... 107
13.1 Pipeline Profile – Overview ......................................................................... 107
13.1.1 Pipeline Profile – Previous Occurrences ..................................................... 110 Table 13-1 Moreno Valley Area Natural Gas and Sewer Line Incidents ............... 110
13.1.2 Pipeline Profile – Probability of Future Events ............................................ 111
13.2 Pipeline Vulnerability – Overview/Impact .................................................... 111
13.2.1 Pipeline Vulnerability – Potential Loss ........................................................ 112 Chapter 14: Transportation ........................................................................................ 113
14.1 Transportation Profile – Overview .................................................................... 113 Figure 14-1: City of Moreno Valley Transportation Map ....................................... 115 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Figure 14-1.1: City of Moreno Valley Air Crash Hazard Area Map........................ 116
14.1.1 Transportation Profile – Previous Occurrences ........................................... 117 Table 14-1: Moreno Valley Transportation History of Incidents ........................... 117
14.1.2 Transportation Profile – Probability of Future Events .................................. 118
14.2 Transportation Vulnerability – Overview/Impact .......................................... 118
14.2.1 Transportation Vulnerability – Potential Loss .............................................. 119 Chapter 15: Power Outage ......................................................................................... 119
15.1 Power Outage Profile – Overview ............................................................... 119
15.1.1 Power Outage Profile – Previous Occurrences ........................................... 119
15.1.2 Power Outage Profile – Probability of Future Events .................................. 122
15.2 Power Outage Vulnerability – Overview/Impact .......................................... 122
15.2.1 Power Outage Vulnerability – Potential Loss .............................................. 123 Chapter 16: Hazardous Materials Accident ................................................................ 124
16.1 Hazardous Materials Profile – Overview ..................................................... 124 Figure 16-1: City of Moreno Valley Hazardous Materials Site Locations Map – Revised Sept. 26, 2022 ........................................................................................ 125 Figure 16-1: PART 2: City of Moreno Valley Hazardous Materials Site Locations Map – Rev. Sept. 26, 2022 ................................................................................... 125
16.1.1 Hazardous Materials Profile – Previous Occurrences ................................. 127 Table 16-1: Moreno Valley Hazardous Materials Incident History ....................... 127
16.1.2 Hazardous Materials Profile – Probability of Future Events ........................ 128
16.2 Hazardous Materials Vulnerability – Overview/Impact ................................ 128
16.2.1 Hazardous Materials Vulnerability – Potential Loss .................................... 129 Chapter 17: Terrorist Attack ........................................................................................ 129
17.1 Terrorist Attack Profile – Overview .............................................................. 129
17.1.1 Terrorist Attack Profile – Previous Occurrences ......................................... 130 Table 17-1: History of Moreno Valley Terrorist Attack Incidents of Concern ......... 131 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Table 17-1: History of Moreno Valley Terrorist Attack Incidents of Concern (cont’d) .............................................................................................................................. 132
17.1.2 Terrorist Attack Profile – Probability of Future Events ................................. 132
17.2 Terrorist Attack Vulnerability – Overview/Impact ......................................... 132
17.2.1 Terrorist Attack Vulnerability – Potential Loss ............................................. 134
18.1 Civil Unrest Profile – Overview .................................................................... 134
18.1.1 Civil Unrest Profile – Previous Occurrences ............................................... 134 Table 18-1: History of Moreno Valley Civil Demonstrations ................................. 134
18.1.2 Civil Unrest Profile – Probability of Future Events .................................... 135
18.2 Civil Unrest Vulnerability – Overview/Impact ............................................... 135
18.2.1 Civil Unrest Vulnerability – Potential Loss .................................................... 135 Chapter 19: Pandemic Flu/Disease ............................................................................ 136
19.1 Pandemic Flu/Disease Profile – Overview .................................................. 136
19.1.1 Pandemic Flu/Disease Profile – Previous Occurrences .............................. 137 Table 19-1: Disease Outbreaks in the Moreno Valley Area ................................. 138
19.1.2 Pandemic Flu/Disease Profile – Probability of Future Events ..................... 139
19.2 Pandemic Flu/Disease Vulnerability – Overview/Impact ............................. 139
19.2.1 Pandemic Flu/Disease Vulnerability – Potential Loss ................................. 139 Chapter 20: Mitigation Strategy .................................................................................. 141
20.1 Introduction .................................................................................................. 141
20.2 Capability Assessment ................................................................................. 141 Table 20-1: Example of Regulatory Capabilities ................................................... 141 Table 20-1.1: Example of Administrative and Technical Capabilities ................... 144 Table 20-1.2: Fiscal Mitigation Capabilities .......................................................... 145
20.3 Local Hazard Mitigation Strategies and Progress ......................................... 147
20.4 National Flood Insurance Program .............................................................. 191 APPENDIX A ........................................................................................................ 194 ABBREVIATIONS, ACRONYMS, AND INITIALISMS ........................................... 194 Moreno Valley Hazard Mitigation Plan
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APPENDIX B ........................................................................................................ 197 MEETING DOCUMENTATION ............................................................................. 197
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
PLAN ADOPTION
The City of Moreno Valley Local Hazard Mitigation Plan (LHMP) has been reviewed and approved by the Governor ’s Office of Emergency Services (C al OES) and the Fed eral Emergency Management Agency (FEMA).
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
EXECUTIVE SUMMARY
The City of Moreno Valley’s Local Hazard Mitigation Plan ( LHMP ) is designed to identify the City’s hazards, estimate the probability of future occurrences, and set goals to mitigate potential risks to reduce or eliminate long -term natural or man - made hazard risks to human life and property for the City and its reside nts. The City of Moreno Valley LHMP is written so that all stakeholders can understand Moreno Valley’s hazard risks and the City’s corresponding mitigation strategy.
The City’s mitigation efforts are continuous with a goal to develop and maintain a viable plan. Hazard mitigation responsibility rests with everyone and the City of Moreno Valley encourages its citizens to do mitigation planning at every level – at home, in the workplace, and in their communities .
The 2022 LHMP is an update to Moreno Valley’s 2016-2017 LHMP which the Moreno Valley City council adopted on November 9, 2017 (resolution no. 201 7- 55).
The City of Moreno Valley L HMP was prepared pursuant to the requirements of the Robert T. Stafford Disaster Relief and Emergency Assistance Act (Stafford Act), as amended by Section 322 of the Disaster Mitigation Act of 2000 and the 44 Code of Federal Regulations (CFR) Part 201 – Mitigation Planning , to achieve eligibility and potentially secure mitigation funding through Federal Emergency Management Agency (FEMA) Flood Mitigation Assistance, Pre -Disaster Mitigation, and Hazard Mitigation Grant Programs.
The goals of the plan are to: 1) Protect life, property, and the environment; 2) Provide public a wareness; 3) Protect the continuity of government ; and 4) Improve emergency management, preparedness, collaboration, and outreach.
The mitigation plan is divided into 3 parts.
• Part 1 provides a profile of the City of Moreno Valley and describes the local planning process, as well as public participation. It also provides a process for monitoring, evaluating, and updating the plan.
• Part 2 provides a detailed assessment of the risks asso ciated with each hazard and historical information on past occurrence. Part 2 also discusses vulnerabilities from each hazard, the impact to Moreno Valley and its citizens and when data is available, it provides information on the potential loss.
• Part 3 provides information about the city’s mitigation goals to reduce or avoid long-term vulnerabilities to the hazards that may affect the City of Moreno Valley Moreno Valley Hazard Mitigation Plan
Revised: December 2022
and an action plan for those goals, with an emphasis on prioritization and implementation.
The plan will be implemented upon FEMA approval.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
PART 1
INTRODUCTION
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
CHAPTER 1: COMMUNITY PROFILE
1.1 PLANNING AREA DESCRIPTION
The City of Moreno Valley officially incorporated on December 3, 1984 , as a California general law municipality . Moreno Valley is comprised of three , once-rural communities (Sunnymead, Edgemont and Moreno Beach) and is located in the northwestern portion of Riverside County, approximately 66 miles east of Los Angeles, 42 miles west of Palm Springs, and 100 miles north of San Diego. Moreno Valley is situated in a crescent of land bounded by the Box Springs Mountains to the north, the hills of the Badlands to the east and the mountains of Lake Perris State Recreati on Area to the southeast . The surrounding and adjacent jurisdictions include: the City of Riverside ; the City of Perris ; March Air Reserve Base; the San Jacinto Wildlife Area; and Lake Perris State Recreation Area.
Moreno Valley is approximately 51.56 square miles and is situated along two major transportation corridors: State Route 60 (SR-60) runs east-west and bisects the city and Interstate 215 (I-215), which runs north-south against the westerly city limits.
The elevation of Moreno Valley ranges from a low of approximately 1,550 feet to a high of 1,800 feet. Moreno Valley gradually slopes to the south and southwest with the higher elevations north of SR-60 and the lower elevations southerly near March Air Reserve Base. The City of Moreno Valley rests primarily on bedrock geology known as the Perris Block, a large mass of granitic rock generally bounded by the San Jacinto Fault, the Elsinore Fault, the Santa Ana River, and a non-defined southeast boundary.
There are a few small ponds and lakes scattered throughout the city. In addition, Lake Perris is located south of the City. Moreno Valley is located within the Santa Ana River and the San Jacinto River watersheds, with the majority of the city being within the watershed of the San Jacinto River.
The topography and climate combine to make the air basin an area of high air pollution potential. The basin fails to meet state and federal air quality standards for four of the six criteria pollutants including : ozone; nitrogen dioxide ; carbon monoxide ; and fine particulate matter.
The natural habitat is largely disturbed by urban development, weed abatement or agricultural activities. The city also supports other native, semi -native and non -native plants. Moreno Valley has a rich diversity of wildlife species located mostly in undeveloped portions of the city including mule deer; coyotes; bobcats; badgers; and gray fox. The city also includes a few species listed under the Endangered Species Act such as: Stephen’s kangaroo rat ; the California gnatcatcher ; the Least Bell’s Vireo; and the San Bernardino kangaroo rat. Potentially listed species include : the orange throated whiptail; the San Diego horned lizard; and the short-nosed pocket mouse.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
1.2 POPULATION/DEMOGRAPHICS
The City of Moreno Valley has a projected annual growth rate of 1.88 in 20221. Moreno Valley is the second most populous city in Riverside County and the 21 st largest in the State of California. The 2022 population in Moreno Valley is reported at 225,553 2, thus creating more community exposure to natural and man-made hazards.
TABLE 1 -2: POPULATION
Population
219,640 2021
225,553 Projected in 2022
Source: The Nielsen Company
The 2010 United States Census reported the racial makeup of Moreno Valley was 80,969 White, 34,889 African American, 1,721 Alaska Native, 11,867 Asian, 1,117 Pacific Islander, 51,741 were from other races and 11,061 were from two or more races. Hispanic or Latino of any race was 105,169. The 2020 Census reports are:
TABLE 1 -2.1: ETHNIC BREAKDOWN
2020 Population
Description Total Percent
White Alone 67,108 32.15%
African American 37,225 17.83%
Native American 920 0.44%
Asian Alone 11,517 5.52%
Pacific Islander 754 0.36%
1 The World Population Review, 2022
2 The Nielsen Company (2022), an industry leader in analyzing key population indicators, to provide a comprehensive view of the most relevant demographic trends and projections affecting the city Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Some Other Race
Alone 79,184 37.93%
Two or More Races 12,043 5.77%
Source: The U.S. Census Bureau
Moreno Valley Hazard Mitigation Plan
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The median age in Moreno Valley is 30. 9, 30.1 years for males, and 31.9 years for females. According to the 20 20 Census, Moreno Valley had over 51,545 households.
Approximately 84.4% of Moreno Valley’s households are made up of families and 15.6% are non-families. The average household size is 4.32.
As part of ongoing business and as part of continual planning process, elements of current and future growth are considered in this and other plans within the City.
1.3 CLIMATE
Moreno Valley is in a semi -arid area of western Riverside County just east of the San Bernardino Mountains and south of the San Gabriel Mountains. Within the Köppen climate classification system, which is a widely used global climate classification system, Moreno Valley is located in the CSA (Mediterranean Climate) class.
The average annual mean temperature for January is 5 6 degrees. In July, the average mean temperature is 78 degrees. The highest recorded temperature was 117 degrees in September 2016. During the summer, the average high temperature ranges from 90 to 100 degrees Fahrenheit. According to the California Department of Water Resources, annual rainfall can vary greatly from year to year, but averages in the region are from 11 to 14 inches annually.
TABLE 1 -3: MORENO VALLEY CLIMATE BY MONTH 3
3 http://weathercurrents.com/morenovalley/Climate.do Retrieved June 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
1.4 LAND USE
Land use within Moreno Valley has been primarily residential, which includes approximately 60,000 homes/apartments. Other land uses include commercial and industrial. There are approximately 2,005 commercial businesses, with several planned developments on the horizon which will increase the amount of residential use and commercial business within the city. Current development trends as shown in Appendix C illustrate upcoming development projects which are distributed throughout the city and are situated in various hazard -prone areas. As development continues, it will follow established zoning and land use requirements in accordance with the city’s General Plan.
Ongoing development will increase the city’s vulnerability to identified hazards including, but not limited to earthquakes, landslides, subsidence/settlement, floods, inundation, and wildland fire.
Agricultural production land is concent rated in the eastern portion of the city. A joint civilian and military airport (March Air Reserve Base) is located at the southwestern boundary. The State of California owns and operates two regional recreation and open space areas: the San Jacinto Wildlife Area and the Lake Perris State Recreation Area at the southern boundary. (See Figure 1.4).
Neighboring land uses include the San Jacinto Wildlife Area, which is located near the southeastern boundary of the City of Moreno Valley and was created by the S tate of California as mitigation for the loss of wildlife habitat. Part of the San Jacinto Wildlife Area is within the historic floodplain of the San Jacinto River and is subject to periodic flooding.
The resulting floodwater, known as Mystic Lake, has been known to inundate the area for months or years at a time. The neighboring area of Lake Perris State Recreation Area is situated along the southern boundary of the City. Riverside County operates Box Springs Mountain Park along the northwest city boundary.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 1 -4 LAND USE MA P 2022 – REVISED 8/1/22
Moreno Valley Hazard Mitigation Plan
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CHAPTER 2: THE PLANNING PROCESS
2.1 PLANNING/ COORDINATION
The City of Moreno Valley Fire Department Office of Emergency Management (OEM) staff regularly coordinates and collaborates with city departments, local agencies, neighboring communities, businesses, and other stakeholders. OEM will be the lead division overseeing the plan. OEM will utilize participants on the City’s LHMP Planning Team to regular ly consult and assist with the update and maintenance of the plan . Although there are documented formal meetings of the City Planning Team, it should be noted that during the update process, OEM regularly connects with and consults various members of the team as well as other departments and stakeholders.
The overall approach to the City of Moreno Valley Local Hazard Mitigation Pl an during this update cycle was to develop a review and assess the natural and man- made hazards to the City of Moreno Valley and to determine ways to reduce those risks, and to prioritize and outline potential mitigation strategies. As part of this, each department, or divisions, through their participation, provided subject matter expertise about their discipline and any relative plans, procedures, processes, rules, reports, studies, or other regulations to ensure adherence and inclusion to all.
During the process, OEM staff voluntarily participated in Operational Area Planning Committee (OAPC), a quarterly meeting of all emergency managers and planners within the County. OEM also elected to participate on the Riverside County Operational Area Multi -Jurisdiction Local Hazard Mitigation Plan Subcommittee where partic ipants regularly exchange ideas and plan details . OEM further demonstrated their commitment to the plan update by joining the OA MJLHMP Steering Committee which hosted regular meetings and workshops where the LHMP process was discussed with multiple agencies and non-profits throughout Riverside County.
The dates of these meetings and other planning activities can be seen in the list below and documentation of each of these events can be found in the Appendix C Supporting Documents section of the plan.
• June 2022 City update process started
• June 15, 2022 - Riv. Co. Operational Area Multi-Jurisdictional LHMP Steering Committee Meeting (OA MJLHMP)
• July 6, 2022 - City Executive Team LHMP Briefing & Kickoff Meeting Moreno Valley Hazard Mitigation Plan
Revised: December 2022
• July 28, 2022 - Riv. Co. Operational Area Planning Committee • July 28, 2022 - City LHMP Planning Team Kickoff Meeting • July – November 2022 - Department Plan Section updates • August 3, 2022 – OA MJLHMP Steering Committee meeting • August 8, 2022 – LHMP Process Review Meeting with County EMD • August 17, 2022 – OA MJLHMP Workshop
• August 25, 2022 – Non-Profit & Faith-Based Organizations Presentation • September 11-12, 2022 City Employee Community Emergency Response Team Training
• September 2022 - Launched updated p ublic-facing LHMP Review & Feedback Site (plan has always been on this site for public viewing and remains open for public comment year-round regardless of plan status) • October 5, 2022 – OA MJLHMP Steering Committee meeting • October 11, 2022 - Public Feedback Meeting #1
• October 13, 2022 - Public Feedback Meeting #2
• October 14-16, 2022 -City Community Emergency Response Team Trng. • January 4, 2023 – OA MJLHMP Steering Committee meeting • February 8, 2023 – Draft Plan posted on City LHMP Website for public review and comment
• February 8, 2023 – Flyers posted at City Facilities for Community Input and Feedback on the plan
• February 14, 2023 – Will present LHMP update and draft plan to Riv.
University Health Systems Medical Center Emergency Management Committee during Open Forum
• March 29, 2023 – Post Cal OES review and findings discussion via TEAMs
The City’s LHMP was under taken and prepared in accordance with FEMA standards and 44 CFR §201.6(d)(3).
In June of 2022, OEM began the process of the five-year update of the LHMP. Key subject-matter-experts (SMEs), department-level contacts , and personnel from city departments were identified for participation in the update process as part of the Citywide LHMP Planning Team. An in-depth review of the existing plan was undertaken to identify areas requiring update.
Further, each plan chapter and section were dissected, and a responsible and appropriate city department was assigned. Consideration was taken to assign the section to the appropriate SME and contact. The task list ultimately became the List of Duties by Department and was used for task assignments and tracking.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
On July 6, 2022 OEM presented the LHMP Plan Update Briefing and Kickoff meeting to Executive Leaders within the City to obtain their support of the plan revision process and membership of the City Planning Team . An Attendance Roster is included in Appendix B. Upon acceptance from the Executive Team, OEM then assembled a Citywide LHMP Planning Team which met July 28, 2022.
At this meeting OEM hosted the formal LHMP Planning Team Kick-off Meeting.
This meeting served to reintroduce the LHMP and outline the List of Duties by Department, expectations, and project deadlines. City Management lent support to OEM staff to help relay the criticality and importance of participation in the update process by all city departments. The Attendance Roster can be found in Appendix B. It should be noted that during the planning process , any internal or external stakeholders not identified on the City Planning Team, were consulted accordingly. The City Planning Team consisted of:
• Emergency Management – Diana Rockot, Division Manager • Building & Safety – James Verdugo, Division Manager
• Electric Utility – Jeannette Olko, Division Manager
• Fire Dept. (CAL FIRE/Riv. Co. Fire Dept.) – Jesse Park, Fire Chief • GIS – Janice Nollar-Conrad, GISP, GIS Administrator
• Maintenance & Operations – Joseph Mattox, Division Manager • Parks & Community Services – Jeremy Bubnick, Director • Police (Riv. Co. Sheriff’s Dept.)
• Planning – Sean Kelleher, Planning Official
• Media – Matthew Bramlett, Public Information Officer
Shortly after the LHMP Planning Kickoff Meeting, the List of Duties by Department was distributed via electronic mail (e -mail) which required team members to review/revise the sections, chapters, narratives, and supplemental information.
Revised metrics, timelines, updated maps and narratives were reviewed and implemented into the LHMP accordingly between June and December.
OEM and SMEs continued to collaborate to review hazards, identify and update mitigation strategies. Department updates included history of disasters, mitigation efforts and a ranking of local hazards. Fire Department and Planning reviewed and updated building codes as they relate to hazard mitigation.
Neighboring communities we re invited to participate in the update of the c ity’s LHMP during the quarterly Operational Area Planning Committee (OAPC) meeting and the ongoing MJLHMP Steering Committee meetings. Most neighboring communities are in the process of updating the ir respective LHMP’s therefore jurisdictions often share and hear updates and efforts of surrounding partners Moreno Valley Hazard Mitigation Plan
Revised: December 2022
which contributes to enhancement of efforts. Interjurisdictional connections were used to ask questions and seek guidance from other jurisdictions.
Public input and feedback were and continues to be sought throughout the planning process and beyond. During the planning process, the City updated its LHMP landing page on its website to make review and feedback of the plan easy for the whole community. The 2017 plan was available from 2017 until October of 2022. In October 2022, the public was again provided an opportunity at the beginning of this plan revision cycle to provide feedback on the current plan so those could be included in the new revision. In February 2023 the new draft plan was placed on this site for public comments. Once the plan is approval and adopted, the plan will remain on the website for public review and comment at all times.
2.2 PUBLIC PARTICIPATION
During the last update cycle of the City’s LHMP in 2016 -17, the City began advertising the plan and allowing residents to provide feedback year-round on their website at: www.moval.org/oem.
In September 2022, this site was updated to create a City website landing page dedicated to the LHMP. The page is available at: www.moval.org/lhmp. This site will remain active on an ongoing basis to allow residents access to view and comment on the plan at any time. On the site, the community can access the plan and provide feedback via a brief online survey. To date, no public comments have been received on this website.
In addition to website access of the plan year-round for the public, OEM also has participated in a number of various meetings, trainings, and outreach activities to solicit input from the community. Below is a list of the highlights of these activities, however, a complete library of documents supporting attendance at these, and numerous other events is available in Appendix B of this plan.
During Community Emergency Response Team (CERT) trainings that were offered by the City on September 9-11, 2022 and October 14-16, 2022, significant time was spent during module 1 : Preparedness, discussing the LHMP elements, the role in plays in the City , and the importance of community feedback. There were several slides dedicated to the City planning update efforts and class participants were provided the link to the online survey or a hard copy of the survey.
On September 12, 2022 OEM conducted a public presentation at the Moreno Valley Senior Center , in English and Spanish, where the LHMP was highlighted Moreno Valley Hazard Mitigation Plan
Revised: December 2022
and discussed. Participants were provided information about the plan and were encouraged to visit the website at www.moval.org/lhmp to read the plan and complete the survey.
On September 14, 2022, OEM presented to the Moreno Valley Chamber of Commerce, Business in Action group. An overview of the LHMP was presented during this meeting. Businesses were encouraged to review the plan and to use the plan as an aide in developing business continuity and emergency plans. Once again, participants were encouraged to visit the City LHMP website at:
www.moval.org/lhmp to provide input and feedback on the plan.
September 21 -22, 2022 City OEM hosted a Community Emergency Response Team (CERT) training for City employees, many of whom also reside in the City .
During this course, participants were given an overview of the LHMP, its role, and the importance of community feedback. Participants were provided the website and hard copy survey’s and were encouraged to review the plan and complete the survey.
On October 11th and 13th, 2022, Public meetings were conducted to allow residents and members of the community the opportunity to review the existing plan, ask questions of the City Emergency Manager, Planning Official, and the Capital Improvement Engineer. The meetings allowed subject matter experts to engage on various projects and topics as they relate to the LHMP. Documentation of each event is found in Appendix B of this plan. During these meeting, and in an ongoing effort to ensure whole community participation, OEM ensured that at each meeting, a certified American Sign Language interpreter and certified Spanish interpreter were present. During both meetings, the entire meeting was presented in English and American Sign Language . The October 13 th meeting required use of the Spanish interpreter, in addition to the Sign Language and English presenters. At both meetings, members of the City Planning & En gineering Department and Capital Projects Team were present to answer questions.
Upon completing the draft of the 2022 LHMP, the updated draft plan was once again placed on the www.moval.org/lhmp website for community input on February 8, 2023. Additionally, flyers advertising the opportunity to provide feedback were provided at the following City facilities that are frequented by and visible to residents, visitors, and stakeholders:
• Public Safety Building (front door)
• City Hall (bulletin board and front desk)
• CRC (brochure/literature holder)
• Cottonwood Golf Center (brochure/literature holder)
• BERC (brochure/literature holder)
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
• Senior Center (concierge desk)
The flyer was also posted to City social media sites Facebook and Instagram on February 9, 2023. The post will be periodically re-posted until March 1, 2023 and encourages the community to review and provide feedback on the plan.
Any feedback received during the community input period of February 1, 2023 through March 1, 2023, will be reviewed for possible inclusion in the plan prior to submission to FEMA or the City Council for adoption. Then, upon approval of the 2022 LHMP, it will again be posted on the City website for all residents to view and provide feedback on an ongoing basis. Any comments or feedback collected from the website will be incorporated as appropriate during the next revision cycle.
On February 10, 2023, a status update of the draft plan status was provided to City LHMP Planning Team members. This update encouraged departments and divisions to review the plan again and provide any final changes by March 1, 2023.
On February 10, 2023 the draft 2022 -23 plan was provided to Operational Area partners for submission to Cal OES Mitigation division for a pre-review. A complete FEMA crosswalk was completed and submitted to Cal OES for their review. On March 9, 2023, the draft plan with four minor findings was provided back to the City. On March 29, 2023, OEM organized a meeting with stakeholders to discuss the necessary steps to address the findings. The plan is expected to be final and ready for City Council adoption by mid-April.
2.3 PLAN MAINTENANCE
The City of Moreno Valley LHMP remains an important tool to reduce the effects of hazards within the city. According to 44 Code of Federal Regulations §201.6(c)(4), the plan must have a maintenance strategy that includes a method and schedule for monitoring, evaluating, and updating the plan; a process for incorporating into existing planning mechanisms; and a strategy for continuing public involvement.
Method/Schedule for Monitoring the Plan:
The LHMP includes mitigation strategies that look to reduce long -term vulnerabilities to the hazards identified. This provides a framework for activities that the city can choose to implement over the next five years. The effectiveness of the plan depends on the incorporation of the action items into existing city plans, policies, and programs.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
OEM staff, under direction of the Fire Chief, will assume the lead role of monitoring the mitigation plan and coordinating with City Planning Team members from within the appropriate departments, divisions, and programs to ensure that the identified mitigation goals and actions are incorporated into plans, policies, and existing city programs and that such monitoring includes ensuring positive movement towards accomplishing outlined mitigation strategies and projects.
OEM may confer with city staff to perform annual reviews of the LHMP and its implementation. The goal will be to discuss any hazard events that occurred during the prior year and their impact on the City of Moreno Valley; evaluate the mitigation goals and actions to determine if the timeline is appropriate; determine what plans, policies and procedures need to be updated as a result of the LHMP; and to determine if additional mitigation actions need to be added; and to discuss new mitigation grant funding opportunities.
Evaluating and Updating the Plan:
As required by the 44 Code of Federal Regulations §201.6(d)(3), the City of Moreno Valley will update the LHMP every five years. OEM staff is responsible for the update every five years and will follow the following process during the update:
➢ OEM will convene the LHMP Planning Team and stakeholders at minimum every five years to update the plan; however, ongoing evaluation will be performed by Planning Team members in the way of continually working on the identified projects and strategies. .
➢ Using the best available guidance, information and technology, regulatory policies and procedures, each chapt er will be reviewed and updated to determine if changes are needed.
➢ The mitigation strategies will be reviewed and revised to account for any initiatives completed, discontinued and/or chan ged and to account for changes in the risk assessment or new city policies identified through other planning mechanisms, as appropriate (such as the general plan). ➢ The draft update will be sent to the hazard mitigation planning committee , SMEs, and other stakeholders for review and comment.
➢ The public will be given an opportunity to comment on the update prior to adoption. OEM will request the mitigation area of the city website be updated for ease of public review and comments of the draft plan. Other efforts, such as social media posting, etc. will be included to ensure notification to the public of hazard mitigation planning meetings held and inviting them to attend.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
➢ After the public comments have been reviewed and implemented, OEM will forward the revised LHMP to CalOES for pre-review. Upon receiving feedback, OEM will implement required updates and finalize the plan. ➢ OEM wil l submit the plan back to Cal OES for final review. OEM will simultaneously submit for City Council adoption and the State will forward the plan to FEMA for approval.
Incorporation into existing planning mechanisms:
The City LHMP serves as a guiding document for many aspects of City planning efforts. Specifically, the LHMP serves as a foundational document for the Moreno Valley Utility (MVU) Wildfire Mitigation Plan . Many elements within this plan are integrated in the MVU plan given the enormous intersection of mitigation and utility services.
The hazard mitigation plan also provides the City of Moreno Valley with an opportunity to review and expand on policies, plans and existing city programs.
The LHMP will be provided to those involved in development of the General Plan; Environmental Impact Report; Emergency Operations Plan (EOP); Evacuation, Mass Care, and Terrorism EOP annexes; and city ordinances to insure that consistency is maintained.
Whenever there are substantive changes to the LHMP, those involved in planning mechanisms will be included in the review process. It is the intent of this plan and the personnel within the City LHMP Planning Team to identify local planning mechanisms where hazard mitigation actions can be incorporated. Examples of how these mechanisms are incorporated are demonstrated below:
TABLE 2.3 -1 EXAMPLES OF MITIGATION STRATEGY SUPPORTING
DOCUMENTS
Regulatory Tool Comments
General plan
MoVal 2040: Comprehensive General Plan for
the City of Moreno Valley (June2021).
Utilized Safety Element to incorporate and
develop mitigation strategies.
Master Drainage Plan
Planning guide for the location and sizing of local
drainage facilities to be constructed by
developers and others within the area, updated
and adopted October 13, 2015. Utilized for
public outreach and educational awareness.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Zoning ordinance Municipal Code Title 9 Planning and Zoning.
Utilized for development trends.
Subdivision ordinance Municipal Code Title 9, Chapter 9.14 (Land Divisions). Utilized for development trends.
Site plan review requirements
Municipal Code Title 9, Chapter 9.02.030
(Development review process). Utilized for
development trends
Floodplain ordinance
Municipal Code Title 8, Chapter 8.12 (Flood
damage prevention and implementation of
National Flood Insurance Program (NFIP))
includes flood damage prevention and
implementation of the national flood insurance
program (NFIP). Utilized for public outreach and
educational awareness.
Water conservation ordinance
Municipal Code Title 9, Chapter 9.17
(Landscape and Water efficiency requir ements)
addresses water conservation. Utilized for public
outreach and educational awareness.
Stormwater ordinance
Municipal Code Title 8, Chapter 8.10(Storm
water/urban runoff management and discharge
controls). Utilized for public outreach and
educational awareness.
Regulatory Tool Comments
Wildfire ordinance
Municipal Code Title 6, Chapter 6.04
(Abatement of Public Nuisances). Utilized for
public outreach and educational awareness.
Building Standards Code
Utilize Approved 2019 California Building Codes;
Latest adoption expected late 2019 with effective
date of January 1, 2020.
Fire and Safety Standards
Utilize Approved 2019 Fire and Safety
Standards; Latest adoption expected late 2019
with effective date of January 1, 2020.
Fire department ISO rating Rating: class 4 urban/9 rural Erosion or sediment control
program
Municipal Code Title 8, Chapter 8.21.160
(Erosion Control) and Municipal Code Title 9,
Chapter 9.17.110 (Erosion Control/Slope
Planting). Utilized for public outreach and
educational awareness.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Riverside County Flood Control
and Water Conservation
District
Master Drainage Plan
Three (3) master drainage plans (Sunnymead
Area, West End, Moreno). Utilized for public
outreach and educational awareness.
Regional Water Quality Control
Board Regulations
All proposed septic systems must comply;
prevents groundwater contamination.
Santa Ana Watershed Project
Authority Water Resources
Plan
Protects water quality in the Santa Ana
watershed. Eastern Municipal Water Dist rict
(which serves the City of Moreno Valley) is a part
of the Santa Ana Watershed.
National Pollutant Discharge
Elimination System
Protects water resources from pollutants in
runoff.
Capital Improvements Plan
The Capital Improvements Plan (CIP) is
updated annually. Utilized to develop project
budget, priorities, and develop mitigation
strategies.
Economic Development Plan 2-year plan; Utilized for community profile.
Emergency Operations Plan Emergency Operations Plan, March 2018 Strategy for Continuing Public Involvement:
The City of Moreno Valley continue s its public involvement including making the most up to date LHMP available for review on the city website and at the public library; encouraging public comments; and involving the public i n the update process. These strategies will include the use of traditional media and social media outlets, such as the city website. Information about the plan, the planning process, importance of resident involvement, are regularly communicated in public meetings, trainings, and other forums. All of these mechanisms will be facilitated by OEM and/or other departments as appropriate. The City website offers easy options for providing input about the plan; residents can call, email, or complete a brief survey.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
PART 2
RISK ASSESSMENT
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
CHAPTER 3: RISK ASSESSMENT OVERVIEW
3.1 INTRODUCTION
A risk assessment provides the factual basis for determining strategies to reduce losses from identified hazards. Conducting a risk assessment can provide information on the location of hazards, the probability, the severity, and the risk to life, property, and the environment. This chapter will provide information about the impact of each hazard and the severity, probability, and potential losses.
3.2 INVENTORY OF ASSETS & BUILDING LIFELINE INVENTORY
To assist in assessing the risks of hazards that may affect the city of Moreno Valley , critical facilities , historical sites, and other assets are identified below. Where possible, HAZUS -MH was utilized. HAZUS -MH is a regional earthquake loss estimation mo del that was developed by the federal emergency management agency and the national institute of building sciences.
Critical/essential facilities: the impact to critical/essential facilities has the potential to be significant, not only for the financial l oss, but also it would severely affect the city’s ability to respond to , and recover from , incidents.
Building Inventory
Hazus estimates that there are 56 thousand buildings in the region which have an aggregate total replacement value of 15,595 (millions of dollars).
Transportation and Utility Lifeline Inventory
Within Hazus, the lifeline inventory is divided between transportation and utility lifeline systems. There are seven (7) transportation systems that include highways, railways, light rail, bus, ports, ferry, and airports. There are six (6) utility systems that include potable water, wastewater, natural gas, crude & refined oil, electric power, and communications. The lifeline inventory data are provided in Tables 3-2 and 3-2.1.
The total value of the lifeline inventory is over 12,570.00 (millions of dollars). This inventory includes over 1,908 kilometers of highways, 71 bridges, 16,606 kilometers of pipes.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
TABLE 3 -2: TRANSPORTATION SYSTEM LIFELINE INVENTORY
System Component # of
Locations/Segments
Replacement value
(millions of dollars)
Highway Bridges 71 111.60
Segments 658 11824.90
Tunnels 0 0.00
Subtotal 11936.50
Railways Bridges 0 0.00
Facilities 0 0.00
Segments 174 414.20
Tunnels 0 0.00
Subtotal 414.20
Light Rail Bridges 0 0.00
Facilities 0 0.00
Segments 8 53.70
Tunnels 0 0.00
Subtotal 53.70
Bus Facilities 0 0.00
Subtotal 0.00
Airport Facilities 1 10.70
Runways 1 38.00
Subtotal 48.60
Total 12453.00
Source: Hazus
TABLE 3 -2.1: UTILITY SYSTEM LIFELINE INVENTORY
System Component # of
Locations
Replacement value
(millions of dollars)
Potable Water Distribution Lines N/A 166.10
Facilities 1 39.30
Pipelines 0 0.00
Subtotal 205.40
Wastewater Distribution Lines N/A 99.60
Facilities 1 78.60
Pipelines 0 0.00
Subtotal 178.20
Natural Gas Distribution Lines N/A 66.40
Facilities 0 0.00
Pipelines 0 0.00
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Subtotal 66.40
Electric Power Facilities 0 0.00
Subtotal 0.00
Communicatio
n
Facilities 5 0.60
Subtotal 0.60
Total 450.60
Source: Hazus
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
TABLE 3 -2.2: OTHER CRITICAL FACILITIES
Critical/Essential Facility Type Qty Value, if known *
City Hall 1 $19,635,865
Emergency Operations Center 1 $2,762,375
Public Safety Building 1 $13,606,557
Conference and Recreation Center (EOC
Family Care Center) 1 $12,252,110
Corporate Yard 1 $12,799,244
Animal Shelter 1 $3,324,417
Annex #1 1 $2,579,800
Fire Stations 7 $13,859,620
Electric Utility (MVU) 1 $21,097,778
City Library 1 $3,684,543
Hospitals/Urgent Care/Dialysis 8 N/A
Residential Care Facilities 134 N/A
College 1 N/A
Schools (5 high schools,9 middle schools,
28 elementary schools, 10 charter
schools)
61 N/A
Pharmacies 19 N/A
Total: 239 $105,602,309
* Note: Value estimates are based on insured values which were established through an appraisal conducted by the Public Employer Risk Management Association (PERMA).
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 3 -2: CRITICAL FACILITIES MAP – REVISED AUGUST 1, 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
TABLE 3 -2.3: MORENO VALLEY HISTORICAL SITES
Historical
Site
Approx
. Year
Built
Description
Value of
Structure
(Assessor’s
data)
21730 Bay
Ave 1947 A bungalow style house, located on the north
side of Bay Avenue, east of Edgemont Street.
$ 32,611.00
21613
Cottonwoo
d Ave
1930
A vernacular wood frame style house that is
located on the south side of Cottonwood Avenue
and east of the Old I-215 Frontage Road.
$ 15,277.00
21768
Cottonwoo
d Ave
1941
A Moorish style house located at the northeast
corner of Cottonwood Avenue and Edgemont
Street. This house appears eligible for listing in
the California Register of Historical Resources.
$ 128,626.00
13694
Edgemont
St
1920
A vernacular wood frame style house that is
located on the east side of Edgemont Street
between Brill Road and Bay Avenue.
$ 33,282.00
24638 Fir
Ave 1915
A vernacular wood frame style house that is
located on the north side of Fir Avenue and east
of Indian Street next to the flood control channel.
$ 84,290.00
23741
Hemlock
Ave
1910
A vernacular wood frame style house that is
located on the south side of Hemlock Avenue
and east of Graham Street.
$ 384,927.00
24215 Fir
Ave 1891
The New English style First Congregational
Church thought to be built in 1891 and was
relocated to the current address.
$ 178,737.00
28780
Alessandro
Blvd
1928
A Mission style structure with wood and stucco
siding and arched entry. The former Old Moreno
School may be eligible for the California
Register of Historical Resources. Renovation of
the structure to convert it for use as a private
residence was approved by the city in 2004.
$ 753,108.00
27476
Cottonwoo
d Ave
1928
Vernacular adobe style residence that is located
on the north side of Cottonwood Avenue, east of
Nason Street.
$ 142,563.00
12130
Theodore
St.
1920
Vernacular wood frame style house located on
the east side of Theodore Street and south of
Ironwood Avenue.
$ 32,161.00
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Historical Sites: The potential impact from natural or man-made hazards to historic buildings and structures could be significant. The most important historic structure in Moreno Valley is a Mission St. (Wilyle structure with wood and stucco siding and arched entry. The former Old Moreno School, located at 28780 Alessandro Boulevard, may be eligible for the California Register of Historical Resources. Renovation of the structure to convert it for use as a private residence was approved by the city in 2004. The historical sites in Moreno Valley are valued at a little over 2 million.
Commercial and Residential Properties: The City of Moreno Valley has approximately 43,913 residential homes and apartments, valued at approximately $8,248,802,141.
The Nielson Report projects the residential housing in Moreno Valley to increase to 60,191 in 2017. There are approximately 2,005 commercial businesses located in Moreno Valley.
3.3 SUMMARY OF HAZARDS
This section will provide a summary of the hazards that impact the City of Moreno Valley, along with information on the severity and probability of each hazard, as well as the relationships of each hazard to other hazards.
Severity and Probability Methodology
Collaboration between departments, divisions, programs, surrounding agencies, citizens and other stakeholders identified and ranked natural and man-made hazards that would likely affect the City of Moreno Valley (Table 3-3). To assist in ranking the identified hazards, the following scale for rating was utilized:
Severity Probability
0 – Does not apply 0 – Does not apply
1 – Negligible damage/injuries 1 – Unlikely to happen
2 – Limited damage/injuries 2 – Possible (1%-10% chance in next year) 3 – Critical damage/injuries 3 – Likely (10%-100% chance in next 10 years) 4 – Catastrophic dam. 4 – Highly likely (near 100% in next year) 12400
Theodore
St.
1915
There are three homes on the property that are
part of the Anco Ranch, which was built
sometime around 1915.
$ 564,555.00
27913
Cottonwoo
d Ave
1885
1937
1940
There are three structures on the property which
include a wood frame residence built in 1885, an
adobe style block building that was moved to the
site in 1937 and a large concrete block building
dating from the 1940’s. This site was designated
as a city landmark by the City’s Environmental
and Historical Preservation Board on 09/12/11.
No value
identified, city
owned
property.
TOTAL: $564,555.00
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
TABLE 3 -3: MORENO VALLEY HAZARD LOCATION, SEVERITY AND
PROBABLY
Hazard Location Severity
(0-4)
Probability
(0-4)
Earthquake Citywide 4 3
Wildland and
Urban Fires
Citywide, especially at Box Springs
(northwest area), San Timoteo Canyon
(north end), Reche Canyon (northeast
area)
3 3
Flooding Citywide, especially on the east end of
the city 3 3
Drought Citywide 2 3
Landslide Mostly in the eastern portion of the city 2 2 Insect
Infestation Citywide 1 2
Extreme
Weather Citywide 2 3
Severe Wind Citywide 2 3
Dam
Failure/Inundati
on
Perris Dam inundation southeast
corner of Moreno Valley and Pigeon
Pass Dam (during periods of extensive
flooding along the downstream
watercourse)
2 2
Pipeline Citywide 2 2
Transportation
Citywide and SR-60 and I-215; San
Timoteo Canyon, north of city and
along I-215; west end, near March Air
Reserve Base
2 2
Power Outage Citywide 3 4
Hazardous
Materials Citywide 3 2
Terrorist Attack Citywide 4 2
Civil Unrest Citywide 2 2
Pandemic
Flu/Disease Citywide 3 2
Relationships of Hazards
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Table 3 -3.1 shows a summary of the relationships between hazards, often called cascading hazards. For example, a flood may trigger other hazards, such as a landslide.
A civil disorder may cause fires or may be a cause of terrorism. Another example is earthquakes, which may cause fires, pipeline incidents, hazardous materials incidents, and power outages.
It is worth noting that climate change, although not itself recognized as a stand -alone hazard within this plan, it may be worthy of considering when discussing other hazards and their relationships. It can be difficult to scientifically say whether a hazard is occurring or worsened as a result of “Mother Nature” or climate change. Additionally, it can be difficult to measure whether or not it is or will in the future, affect the outcome of a specific hazard.
Moreno Valley Hazard Mitigation Plan
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TABLE 3 -3.1: SUMMARY OF RELATIONSHIPS OF HAZARDS
Summary of Major Declarations
Table 3-3.2 shows a list of major declarations affecting the City of Moreno Valley and surrounding areas.
May Cause
Other Hazards
Hazard
Description
Earthquake
Fire
Flooding
Drought
Landslide
Insect Infestation
Extreme Weather
Dam Failure
Pipeline
Transportation
Power Outage
Hazardous Materials
Nuclear
Terrorist Attack
Civil Unrest
Pandemic/Disease
Earthquake X X X X X X X X X X
Fire X X X X X X X X
Flooding X X X X X X X X X X
Drought X X X X X
Landslide X X X X X X
Insect Infestation X X
Extreme Weather X X X X X X
Dam Failure X X X X X X X
Pipeline X X X X X X
Transportation X X X X X
Power Outage X X X X
Hazardous
Materials X X X
Nuclear X X
Terrorist Attack X X X X X X X X X X X X
Civil Unrest X X X X X X X
Pandemic/Disease X X X
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
TABLE 3 -3.2: MAJOR DECLARATIONS 4
Year Disaster
Type
Federal/State
Cost
Riverside
County
Cost
Moreno
Valley
Cost
Disaster
Programs
Given
Categories
2003 Wildfires
DR-1498 $133 million $240,568 N/A PA, IA &
HMGP A & B
2005
Severe
Storms
DR-1577
$228 million $1,327,801 $23,164 PA, IA &
HMGP A-G
2005
Severe
Storms
DR-1585
$75 million $1,485,753 $16,275 PA &
HMGP A & G
2007
Severe
Freeze
DR-1689
$23 million N/A N/A HMGP
2007 Wildfires
DR-1731 $146 million $264,977 $7,220 PA, IA &
HMGP A & B
2008 Wildfires
DR-1810 $59 million $20,377 N/A PA, IA &
HMGP A & B
2010
Severe
Winter
Storms
DR-1884
N/A $452,105
Preliminary
Damage
Report
$195,000
PA, IA &
HMGP A-G
20115
Severe
Winter
Storms
DR-1952
$37 million $262,945 N/A PA &
HMGP A-G
4 https://www.fema.gov/locations/california#declared-disasters Retrieved July 2022
5 https://www.fema.gov/locations/california#declared-disasters Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
2020
COVID-
19 Pandemic
ONGOING ONGOING ONGOING
Coronavirus
State and
Local
Recovery
FUNDS
(SLFRF)
N/A
2021
Fawn Fire
(FM-
5417-CA)
$25.6 million N/A N/A PA B & H
2022
Coastal
Fire
(FM-
5439-CA)
$12.07 billion N/A N/A PA & IA A-G
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
3.4 PROFILING HAZARDS
Hazard profiles are designed to assist in evaluating the hazards that can impact the Moreno Valley area by comparing a number of hazard factors. Each type of hazard has unique characteristics and the impact associated with a specific hazard can vary depending on the severity and location of each event. Further, the probability of occurrence of a hazard in a given location impacts the priority assigned to that hazard.
Beginning in Chapter 4, each identified hazard will be profiled with an overview of the hazard that includes previous occurrences, probability of future events, its impact, and potential losses.
CHAPTER 4: EARTHQUAKE
Moreno Valley Rating: Severity = 4 Probability = 3
4.1 EARTHQ UAKE PROFILE – OVERVIEW /LOCATION
There are three major faults/fault zones that directly affect Moreno Valley. They are the southern section of the San Andreas Fault, the San Jacinto Fault Zone, and the Elsinore Fault Zone. The San Jacinto Fault Zone is con sidered to be the most active fault in Southern California. It is the closest fault to Moreno Valley and runs through the eastern portion of the city, followed by the Elsinore Fault Zone which is located approximately 12- 18 miles south of Moreno Valley. The San Andreas Fault Zone is located approximately 15-20 miles north of Moreno Valley (see Figure 4 -1.1). The largest earthquake to occur within 100 miles of Moreno Valley was the 7. 4 magnitude Hector Mine earthquake in 1999.
San Andreas Fault
The San Andreas Fault Zone is a major geologic feature of North America and consists of several major and numerous minor , branches, especially in southern California. This fault zone runs approximately 4 to 10 miles under the Earth’s crust, making earthquakes from the San Andreas Fault Zone more destructive in nature.
The San Andreas Fault Zone enters the Inland Empire through the Cajon Pass, separating the San Gabriel Mountains from the San Bernardino Mountains. The fault becomes extremely complex in this area, dividing into several right -lateral elements that run somewhat parallel to each other. Principal among these, are two fault zones that have a significant impact on Moreno Valley. They are the San Jacinto Fault Zon e and the Elsinore Fault Zone. The slip rate on the southern section of the San Andreas Fault Zone, which runs from the Mojave Desert south towards the Salton Sea before reaching the United States border with Mexico, is 24 millimeters per year. Earthquakes along this Moreno Valley Hazard Mitigation Plan
Revised: December 2022
section of the S an Andreas Fault are typically above 6.0 in magnitude. Geologists estimate that this fault could produce an 8.2 magnitude earthquake.
The last significant earthquake that occurred over the section of the San Andreas Fault that runs south from Cajon Pass was on December 8, 1812. Geologists estimate that the earthquake was over 7.0 in magnitude with an epicenter near the City of Wrightwood.
Shortly after that earthquake, in 1857, an earthquake ruptured the San Andreas Fault from Monterey down to the Cajon Pass.
San Jacinto Fault Zone
The San Jacinto Fault Zone extends for 180 miles through the counties of San Bernardino, Riverside, San Diego, and Imperial and is comprised of the very active Imperial and Superstition Hill faults. The San Jacinto Fault Zone is a right lateral strike- slip fault ( Figure 4-1) that branches westward from the San Andreas Fault and runs parallel to the Elsinore Fault. It is also considered one of the more seismically active fault zones in Southern California with a slip ra te of 12 millimeters per year. Both the San Jacinto fault and Elsinore fault are classified as part of the San Andreas Fault system.
The San Jacinto Fault Zone does extend through the eastern part of Moreno Valley and has the potential to host a 7.2 magnitude earthquake.
Elsinore Fault Zone
The Elsinore Fault is a large right -lateral strike-slip fault (Figure 4-1) and is part of the trilateral split of the San Andreas Fault and runs parallel to that fault. Though its 111 miles in length makes it one of the larger faults in the area, it is extremely quiet. This fault zone forms a complex series of pull -apart basins, with the largest basin being known as La Laguna. The La Laguna basin is partially filled with water from Lake Elsinore and is the terminus for the San Jacinto River. The slip rate of this fault is 4 millimeters per year and is capable of producing a qu ake of 6.5 - 7.5 in magnitude. Geologists estimate that the interval between major rupture events on the Elsinore is 250 years. The last known major earthquake occurred northwest of the City of Lake Elsinore in 1910.
FIGURE 4-1: RIGHT -LATERAL STRIKE -SLIP FAULT 6
6 US Geological Survey
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FIGURE 4 -1.1 : CITY GEOLOGIC FAULTS AND LIQUEFACTION – REV. AUGUST 31, 2022
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Earthquake Related Hazards
Ground shaking, landslides, liquefaction, and amplification are the specific hazards associated with earthquakes. The severity of these hazards depends on several factors, including soil and slope conditions, proximity to the fault, earthquake magnitude, and the type of earthquake.
Ground Shaking
Ground shaking is the motion felt on the earth's surface caused by seismic waves generated by the earthquake. It is the primary cause of earthquake damage. The strength of ground shaking depends on the magnitude of the earthquake, the type of fault, and distance from the epicenter. Buildings on poorly consolidated and thick soils will typically see more damage than buildings on consolidated soils and bedrock. Figure 4-1.2 shows the shaking intensity for the City of Moreno Valley . The darker shaded areas indicate greater potential for shaking.
FIGURE 4 -1.2: MORENO VALLEY AREA GROUND SHAKING MAP 7
7 California Department of Conservation Retrieved December 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Earthquake-Induced Landslides
Earthquake-induced landslides are secondary earthquake hazards that occur from ground shaking. They can destroy roads, buildings, utilities, and other critical facilities necessary to respond and recover from an earthquake. Many communities in Southern California have a high likelihood of encountering such risks, especially in areas with steep slopes. The abundant shales and siltstones underlying the Badlands are highly porous in the Moreno Valley area and do not hold together well when wet, which can lead to slope instability and landslides.
Liquefaction
Liquefaction occurs when ground shaking causes surface soils, primarily sands and silts, to become saturated with water and temporarily lose strength, causing it to become sticky liquid. This results in the loss of soil strength and the soil's ability to support weight.
Buildings and their occupants are at risk when the ground can no longer support these buildings and structures. Many communities in Southern California are built on ancient river bottoms a nd have sandy soil. In some cases, this ground may be subject to liquefaction, depending on the depth of the water table.
Although the city has seen no evidence of liquefaction events occurring in the community nor has any geotechnical report recently su bmitted to the city identify liquefaction hazards, the Riverside County General Plan has identified a range of liquefaction susceptibility in Moreno Valley from very low with deep groundwater in the northern and eastern portions of the community to very hi gh with shallow groundwater generally west of Perris Boulevard.
Amplification
Soils and soft sedimentary rocks near the earth's surface can modify ground shaking caused by earthquakes. One of these modifications is amplification. Amplification increases the magnitude of the seismic waves generated by the earthquake. The amount of amplification is influenced by the thickness of geologic materials and their physical properties. Buildings and structures built on soft and unconsolidated soils can face greater risk. Amplification can also occur in areas with deep sediment filled basins and on ridge tops.
4.1.1 EARTHQUAKE PROFILE – PREVIOUS OCCURRENCES
Table 4-1 shows some of the more notable earthquakes in the Southern California region, many of which were felt in the City of Moreno Valley.
Moreno Valley Hazard Mitigation Plan
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TABLE 4 -1: HISTORY OF MAJOR SO. CALIFORNIA EARTHQUAKES 8 Year
Richter
Scale
Magnitude
Description
1890 6.5 Occurred in the same region as the 1890 earthquake. 1899 6.4 San Jacinto earthquake destroys San Jacinto and Hemet and was strongly felt in Moreno Valley.
1910 5.0 Occurred on the Elsinore fault northwest of the City of Lake Elsinore.
1918 6.9 San Jacinto earthquake strikes the same area that was damaged by an earthquake 19 years earlier.
1923 6.3
North San Jacinto Fault earthquake damaged the San
Bernardino and Redlands area. This the last known time
that this fault, which runs under the I-215/I-10 interchange, ruptured in this area. The epicenter was located just
northeast of Moreno Valley in San Timoteo Canyon.
1937 6.0 Terwilliger Valley earthquake was in the same general area as the 1890 earthquake.
1942 6.3 Fish Creek Mountains earthquake was south of the Ocotillo airport.
1954 6.2 Arroyo Salada earthquake was west of the Salton Sea. 1968 6.5 Borrego Mountain Earthquake was northeast of Ocotillo Wells
1987 6.6 Superstition Hills earthquake near the Salton Sea 1992 7.2
Occurred near Landers, California and caused the rupture of five different faults. Those faults were: Johnson Valley, Landers, Homestead Valley, Emerson, and Camp Rock.
1992 7.3
Occurred 3 hours after the Landers Earthquake with an
epicenter near Big Bear, CA, just 34.4 miles from Moreno Valley.
1994 6.8
Northridge Earthquake occurs in a neighborhood of the
City of Los Angeles and is located 78.8 miles from Moreno Valley
1999 7.4 Hector Mine Earthquake, located 25 miles from the Landers Earthquake and just 61 miles from Moreno Valley
8 https://www.earthquakeauthority.com/California-Earthquake-Risk/California-Earthquake-History- Timeline Retrieved July 2022
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2010 5.4
Borrego Springs earthquake believed by seismologists to have been possibly triggered by the strong earthquake
which occurred near Calexico in 2010.
2016 4.3
Cal OES issued an earthquake advisory for all Southern
California counties following a series of small magnitude earthquakes that occurred in Bombay Beach (located in
Imperial County and south of where the San Andreas fault ends). This swarm included a 4.3 magnitude quake on
Sept. 26.
2020 5.8
After a foreshock with a magnitude of 4.6 two days earlier, on June 24, a magnitude 5.8 earthquake struck about 12
miles southeast of Lone Pine, in Inyo County. People felt the shaking as far away as 350 miles northwest in San
Francisco and 230 miles east in Las Vegas.
2021 6.0
The quakes were a result of normal faulting and strike slip faults near the Antelope Valley fault, which runs north- south along the Sierra Nevada range front.
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4.1.2 EARTHQUAKE PROFILE – PROBABILITY OF FUTURE EVENTS The probably rating for this hazard is a 3, which means that there is a 10% to 100% chance that it will occur within the next year.
The City of Moreno Valley could be affected by large earthquakes occurring in many parts of the Southern California region. However, the degree to which the earthquakes are felt, and the damages associated with them may vary. At risk from earthquake damage are critical facilities, buildings, bridges, highways, and roads; hazardous materials facilities; sewer, water, and natural gas pipelines; earth dams; petroleum pipelines; and private property located in the city. The relative or secondary earthquake hazards, which are liquefaction, ground shaking, amplification, and e arthquake-induced landslides, can be just as devastating as the earthquake.
The USGS estimates that there is a greater than 99% chance of a major earthquake occurring within 31 miles of Moreno Valley within the next 50 years (Figure 4-1-1).
TABLE 4-1.1 : EARTHQUAKE PROBABILITY NEAR MORENO VALLEY 9:
Richter Scale Magnitude Probability
5.0 99.501%
5.5 94.990%
6.0 87.448%
6.5 76.579%
7.0 54.907%
7.1 50.349%
7.2 45.852%
7.3 40.525%
7.4 34.995%
7.5 28.236%
7.6 20.881%
7.7 14.239%
7.8 9.058%
7.9 5.362%
8.0 2.562%
9 https://www.earthquakeauthority.com/California-Earthquake-Risk/Faults-By-County Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
4.2 EARTHQUAKE VULNERABILITY – OVERVIEW /IMPACT
The severity rating for this hazard is a 4, which means that there is a potential for catastrophic damage, causing multiple deaths, complete shutdown of critical facilities for 30 days or more and/or more than 50% of property has a potential to be damaged.
As shown in Figure 4 -1.1, the probability of a major earthquake occurring near Moreno Valley within the next 50 years is close to 100%. Even if a major earthquake is located in the surrounding area, it will have a severe impact to the City of Moreno Valley. Seismic shaking and aftershocks associated with the earthquake can cause damage to a wide - spread area. The hazards associated with aftershocks are the same as the main shock and may cause significant damage or disruption as well.
4.2. 1 EARTHQUAKE VULNERABILITY – POTENTIAL IMPACT AND LOSSES Earthquakes can cause devastating injuries and loss of life and damage to infrastructure, structures, personal belongings and more. Earthquakes and its a ftershocks can cause other hazards such as pipeline ruptures, dam failures, landslides, soil liquefaction , flooding, fires, power outages, hazardous materials incidents, and civil unrest. There are no known repetitive loss properties.
HAZUS-MH Summary: For purposes of analyzing the impact and estimating potential loss HAZUS-MH was utilized.
The scenario for the HAZUS-MH earthquake risk assessment was a n event measuring
6.5 on the Richter magnitude scale occurring on the San Jacinto Fault. The longitude of the scenario epicenter was 33°57'10.8"N 117°08'52.8"W (33.952999, -117.148003). The depth of the scenario event was 10.00 km (6.21 miles), with a rupture length of 18.20 km (11.3 miles).
Current residential count was found using the Riverside Cou nty Assessor Parcel Layer.
Parcels were overlaid onto the zoning layer. All of the parcels that fell within a residential zone were selected out. From that selection, another query was run to pull all the parcels out with a structure value over $10,000. The final query returned all records that fall within Residential Zoning and have a structure value over $10,000. The count on the residential buildings is 43,913. The structure value is derived from the Assessor Parcel table. The value total for the selected parcels is $8,248,802,141.
The commercial business licenses were found by querying out all records with a location of commercial (Location type = commercial). This resulted in a selection set of data that are identified by the Finance Department as a commercial business. The count of businesses in the city based on the 2022 economic data is 4,500.
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The Critical Facilities layer was comprised of the Business License layer and existing Moreno Valley GIS layers. Residential Care Facilities ( 134), Hospitals (2), Urgent Care (2), and Pharmacies (19) were created from the Business License database. The rest of the Critical Facilities were created from existing GIS layers resulting with a total of 259 facilities.
Four overcrossing bridges on SR -60 were built in 1964 and are outdated. They consist of: SR -60/Indian Street Overcrossing ; SR -60/Moreno Beach Drive Overcrossing ; SR- 60/Redlands Avenue Overcrossing ; and SR -60/Theodore Street Overcrossing. All are two-lane bridges over the SR -60 freeway. With respect to federal inspection coding standards, SR -60/Indian and SR -60/Moreno Beach are considered to be structurally deficient, and SR -60/Redlands is considered to be f unctionally obsolete. The SR - 60/Moreno Beach overpass is currently under construction and is set for completion by the end of 2023. All of these structures could experience varying levels of damage in an earthquake event and could severely impact regional traffic. Three of the four structures (SR-60/Moreno, SR-60/Redlands, and SR-60/Theodore) are located in the “severe” area of ground shaking shown on Figure 4 -2.1. All four structures have inadequate vertical clearance according to current standards and could severely impact transportation of goods and oversized loads.
Development Trends: Future development of buildings, residential structures, critical facilities, and infrastructure are expected to comply with the most recent Uniform Building Code seismic design standards. New development is shown in Appendix C.
This plan and all elements of it, include considerations for the ever-expanding economic and development expansion that is ongoing.
Potential Impact and Losses: On the next several pages, you will find information about the potential impact and losses that may be experienced in the City of Moreno Valley.
HAZUS-MH was utilized to analyze the impact and cost.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
4.2.2 BUILDING DAMAGE
Building Damage
Hazus estimates that about 8,797 buildings will be at least moderately damaged. This is over 16.00 % of the buildings in the region. There are an estimated 305 buildings that will be damaged beyond repair.
Table 4-2 below summarizes the expected damage by general occupancy for the buildings in the region.
TABLE 4 -2: EXPECTED BUILDING DAMAGE BY OCCUPANCY
None Slight Moderate Extensive Complete
Count (%) Count (%) Cou
nt (%) Cou
nt (%) Cou
nt (%)
Agriculture 27 0.10 19 0.10 14 0.20 5 0.46 2 0.65
Commercial 729 2.59 425 2.16 385 5.27 141 11.7
3 34 11.2
3 Education 45 0.16 27 0.14 19 0.26 6 0.53 1 0.47
Government 19 0.07 9 0.05 7 0.10 3 0.24 1 0.27
Industrial 153 0.54 98 0.50 100 1.37 41 3.38 12 3.80
Other
Residential 821 2.91 746 3.79 939 12.8
9 614 51.1
0 156 51.2
3 Religion 72 0.25 41 0.21 32 0.44 12 1.01 3 1.07
Singly
Family
26,31
5 93.3
8 18,33
6 93.0
7 5,79
4 79.4
7 379 31.5
5 96 31.2
8 Total 28,18
1 19,70
0 7,29
0 1,20
2 305
Source: Hazus
Essential Facility Damage
Before the earthquake, the region had 419 hospital beds available for use. On the day of the earthquake, the model estimates that only 236 hospital beds (56.00%) are available for use by patients already in the hospital and those injured by the earthquake.
After one week, 93.00% of the beds will be back in service. By 30 days, 100.00% will be operational.
Moreno Valley Hazard Mitigation Plan
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TABLE 4 -2.1: EXPECTED DAMAGE TO ESSENTIAL FACILITIES
Classification Total
# of Facilities
At Least
Moderate
Damage > 50%
Complete
Damage > 50%
With Functionality
> 50% on Day 1
Hospitals 2 0 0 2
Schools 68 0 0 41
EOCs 0 0 0 0
Police Stations 1 0 0 1
Fire Stations 2 0 0 2
Source: Hazus
Transportation and Utility Lifeline Damage
Table 4-2.2 provides damage estimates for the transportation system.
TABLE 4 -2.2 EXPECTED DAMAGE TO THE TRANSPORTATION SYSTEMS System Component
Number of Locations
Locations
/Segment
With at
Least Mod.
Damage
With
Complete
Damage
With Functionality >
50%
After Day
1 After Day
7 Highway Segments 658 0 0 634 634
Bridges 71 5 0 66 68
Tunnels 0 0 0 0 0
Railways Segments 174 0 0 174 174
Bridges 0 0 0 0 0
Tunnels 0 0 0 0 0
Facilities 0 0 0 0 0
Light Rail Segments 8 0 0 0 0
Bridges 0 0 0 0 0
Tunnels 0 0 0 0 0
Facilities 0 0 0 0 0
Bus Facilities 0 0 0 0 0
Airport Facilities 1 0 0 1 1
Runways 1 0 0 1 1
Source: Hazus
Tables 4-2.3 through 4-2.5 provide information on the damage to the utility lifeline systems. Table 4-2.3 provides damage to the utility system facilities. Table 4-2.4 provides estimates on the number of leaks and breaks by the pipelines of the utility systems. For electric power and potable water, Hazus performs a simplified system Moreno Valley Hazard Mitigation Plan
Revised: December 2022
performance analysis. Table 4-2.5 provides a summary of the system performance information.
TABLE 4 -2.3: EXPECTED UTILITY SYSTEM FACILITY DAMAGE
System
# of Locations
Total # W/
Moderate Damage
Complete
Damage
With Functionality > 50%
After Day 1 After Day 7
Potable Water 1 1 0 0 1
Wastewater 1 0 0 0 1
Natural Gas 0 0 0 0 0
Oil Systems 0 0 0 0 0
Electrical
Power
0 0 0 0 0
Communications 5 0 0 5 5
Source: Hazus
TABLE 4 -2.4: EXPECTED UTILITY SYSTEM PIPELINE DAMAGE (SITE
SPECIFIC)
System
Total
Pipelines
Length
(kms)
Number of
Leaks
Number of
Breaks
Potable
Water
8,303 1296 324
Wastewater 4,982 929 232
Natural Gas 3,321 266 67
Oil 0 0 0
Source: Hazus
Table 4-2.5: Expected Potable Water and Electric Power System Performance Total # of
Households
Number of Households without Service
At Day
1 At Day
3 At Day
7 At Day 30 At Day 90
Potable
Water 58,002
6,661 4,545 1,261 0 0
Electric
Power
0 0 0 0 0
Source: Hazus
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
4-2.3 CASUALTIES
Hazus estimates the number of people that will be injured and killed by the earthquake.
The casualties are broken down into four (4) severity levels that describe the extent of the injuries. The levels are described as follows:
· Severity Level 1: Injuries will require medical attention, but hospitalization is not needed.
· Severity Level 2: Injuries will require hospitalization but are not considered life-threatening
· Severity Level 3: Injuries will require hospitalization and can become life threatening if not promptly treated.
· Severity Level 4: Victims are killed by the earthquake.
The casualty estimates are provided for three (3) times of day: 2:00 AM, 2:00 PM and 5:00 PM. These times represent the periods of the day that different sectors of the community are at their peak occupancy loads. The 2:00 AM estimate considers that the residential occupancy load is maximum, the 2:00 PM estimate considers that the educational, commercial, and industrial sector loads are maximum and 5:00 PM represents peak commute time.
Table 4-2.6 provides a summary of the casualties estimated for this earthquake.
TABLE 4 -2.6: CAUSALITY ESTIMATES
Level 1 Level 2 Level 3 Level 4
2 AM Commercial 4 1 0 0
Commuting 0 0 0 0
Educational 0 0 0 0
Hotels 0 0 0 0
Industrial 7 2 0 0
Other-
Residential
60 11 1 2
Single
Family
112 13 0 1
2 PM
Total
Commercial
184
248
26 58
2 8
3 16
Commuting 0 0 0 0
Educational 100 22 3 6
Hotels 0 0 0 0
Industrial 55 13 2 3
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Other-
Residential
13 2 0 0
Single
Family
24 3 0 0
5PM
Total
Commercial
439
178
98 42
14 6
26 12
Commuting 2 3 5 1
Educational 8 2 0 0
Hotels 0 0 0 0
Industrial 34 8 1 2
Other-
Residential
22 4 0 1
Single
Family
43 5 0 0
Total 287 63 12 16
Source: Hazus
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
4-2.4 ECONOMIC LOSS
The total economic loss estimated for the earthquake is 1,073.70 (millions of dollars), which includes building and lifeline related losses based on the region's available inventory. The following three sections provide more detailed information about these losses.
Building-Related Losses
The building losses are broken into two categories: direct building losses and business interruption losses. The direct building losses are the estimated costs to repair or replace the damage caused to the building and its contents. The business interruption losses are the losses associated with inability to operate a business because of the damage sustained during the earthquake. Business interruption losses also include the temporary living expenses for those people displaced from their homes because of the earthquake.
The total building-related losses were 1,040.08 (millions of dollars); 13 % of the estimated losses were related to the business interruption of the region. By far, the largest loss was sustained by the residential occupancies which made up over 75 % of the total loss. Table 4-2.7 below provides a summary of the losses associated with the building damage.
TABLE 4 -2.7: BUILDING -RELATED ECONOMIC LOSS ESTIMATES (Millions of Dollars)
Category Area
Single
Family
Other
Residen
tial
Commerci
al
Industri
al Others Total
Income Loss
Wage 0.00 2.21 17.33 1.03 1.14 21.70
Capital-
Related
0.00 0.94 14.58 0.62 0.30 16.44
Rental 12.75 4.72 7.98 0.31 0.56 26.33
Relocatio
n
44.86 6.31 12.66 1.35 4.85 70.03
Subtotal 57.61 14.18 52.56 3.30 6.84 134.5
0 Capital Stock Losses
Structural 70.96 13.01 20.99 5.19 5.77 115.9
2 Non-
Structural
397.99 71.01 65.54 18.58 18.88 572.0
0 Content 141.12 17.37 33.40 12.56 9.62 214.0
8 Moreno Valley Hazard Mitigation Plan
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Inventory 0.00 0.00 0.93 2.54 0.11 3.58
Subtotal 610.07 101.40 120.86 38.87 34.39 905.5
8 Total 667.68 115.58 173.41 42.17 41.24 1,040.
08 Source: Hazus
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Transportation and Utility Lifeline Losses
For the transportation and utility lifeline systems, Hazus computes the direct repair cost for each component only. There are no losses computed by Hazus for business interruption due to lifeline outages. Table 4-2.8 provide a detailed breakdown in the expected lifeline losses.
Hazus estimates the long-term economic impacts to the region for 15 years after the earthquake. The model quantifies this information in terms of income and employment changes within the region.
TABLE 4 -2.8: TRANSPORTATION SYSTEM E CONOMIC LOSSES
(Millions of Dollars)
System Component Inventory
Value
Economic
Loss
Loss Ratio
(%)
Highway Segments 11,824.90 $0.00 0.00
Bridges 111.58 $5.37 4.81
Tunnels 0.00 $0.00 0.00
Subtotal 11936.50 5.40
Railways Segments 414.23 $0.00 0.00
Bridges 0.00 $0.00 0.00
Tunnels 0.00 $0.00 0.00
Facilities 0.00 $0.00 0.00
Subtotal 414.20 0.00
Light Rail Segments 53.67 $0.00 0.00
Bridges 0.00 $0.00 0.00
Tunnels 0.00 $0.00 0.00
Facilities 0.00 $0.00 0.00
Subtotal 53.70 0.00
Bus Facilities 0.00 $0.00 0.00
Subtotal 0.00 0.00
Airport Facilities 10.65 $2.33 21.83
Runways 37.96 $0.00 0.00
Subtotal 48.60 2.30
Total 12453.00 7.70
Source: Hazus
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGU RE 4 -2: EARTHQUAKE SCENARIO - CRITICAL FACILITIES – REV. AUGUST 16, 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 4 -2.1: EARTHQUAKE SCENARIO - TRANSPORTATION ( RAIL, HIGHWAY, BRIDGES )
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 4 -2.2: EARTHQUAKE SCENARIO - UTILITY DAMAGE
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 4 -2.3: EARTHQUAKE SCENARIO - COMMERCIAL BUILDING DAMAGE
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 4 -2.4: EARTHQUAKE SCENARIO - RESIDENTIAL BUILDING DAMAGE
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
CHAPTER 5: WILDLAND AND URBAN FIRES
Moreno Valley Rating: Severity = 2 Probability = 3
5.1 WILDLAND AND URBAN FIRES PROFILE – OVERVIEW The City of Moreno Valley is subject to both wildland and urban fires. The natural vegetation in the area is highly prone to fire, as well as the urbanized portions of the city are subject to structural fires. The vegetation and geographical landscape consist of rolling hills covered in annual grasses with sage brush with no tree top canopy. The vegetation typically comes on an annual basis from annual rains which occur between the months of January and March.
A wildland fire is an uncontrolled fire in combustible vegetation that is typically found in a rural or wilderness area. Also known as a vegetation fire, brush fire, forest fire or grass fire, a wildland fire differs from other fires by its extensive size and the speed by which it can spread. These types of fires have a great potential to change direction unexpectedly and can frequently jump roads and fire breaks, making them difficult to control. Wildland fires pose a great danger to urban areas where lives and property can be severely affected.
Within the City of Moreno Valley, wildfire poses a threat to the northern and eastern portions of the city, as those areas are within the high fire hazard area.
Also, the southeast area contains the largest potential for state land threat, Lake Perris, which is a California State Park that falls under the direct protection of the City of Moreno Valley for structure and wildland protection. This area also includes a wildlife refuge area which has a ‘no fire retardant dropping area.’ Other areas of concern include Box Springs (northwest area), San Timoteo Canyon (north end) and Reche Canyon (northeast area).
5.1 .1 WILDLAND AND URBAN FIRES PROFILE – PREVIOUS
OCCURRENCES
Between 2003 and today, there were 8 wildland fires located within the City of Moreno Valley varying in size and impact. Of those, there were 11 that were over 50 acres in size. 10 The table below outlines fires exceeding 50 acres in size that impacted Moreno Valley. Since 2011, the total incident costs for fires over 50 acres is $1,178,679.17.
10 Riverside County Fire
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
TABLE 5 -1: HISTORY OF FIRE IN MORENO VALLEY AND
SURROUNDING AREAS
Year Description
2011
June 27, 2011 – A wildfire at Camino Real x Oliver burned 52 acres near the North entrance of Lake Perris State Recreational Area. No damage information was available.
2011
July 20, 2011 – A wildfire at San Timoteo Canyon Road east of Redlands Boulevard burned 71.13 acres. No damage to structure, personal property or city infrastructure. Incident cost: $253,274.89. 2011
August 6, 2011 – A wildfire at SR-60 at Gilman Springs Road burned 1,026 acres. No damage to structures, personal property or city infrastructure Incident cost: $391,725.84.
2013
May 25, 2013 – A wildfire at Gilman Hot Springs Road east of Alessandro Boulevard burned 126.64 acres. There was no damage to structures, personal property or city infrastructure. Incident cost:
$97,626.58.
2013
July 16, 2013 – A fire near Redlands Boulevard east of San Timoteo Canyon Road burned 168.09 acres. There was damage to two outbuildings and personal property with unknown dollar damage.
Mandatory evacuations ordered. No damage to city infrastructure.
Incident cost: $99,218.15.
2015
July 1, 2015 – A wildfire at Merwin Road east of Alessandro Boulevard burned 181.43 acres. A mandatory evacuation was ordered to a residential community and a fire threat was issued to a natural animal preserve. There was city damage sustained to a City of Moreno Valley water tower and property fence. There was no residential structure damage. Incident cost: $336,833.71. 2019
August 15, 2019 – A grass fire burned 3 acres at the intersection of Phyllis Avenue and Ella Avenue. The fire caused damage to several homes and outbuildings on the nearby properties. The incident cost is estimated at $250,000.
2021
May 5, 2021 – A fatality traffic collision resulted in a brush fire on Gilman Springs Road south of Alessandro Avenue. The fire burned 226 acres. There was no residential structure damage or damage to city infrastructure.
2021
May 18, 2021 - A brush fire at Alessandro Boulevard near Theodore Street burned 301 acres and threatened the San Diego Gas and Electric Power Station as well as infrastructure in the area. An evacuation order was issued for the Power Station.
2022 July 10, 2022 – A brush fire at Shetland Lane near Foxtrot Lane burned 25 acres and threatened approximately 50 homes before Moreno Valley Hazard Mitigation Plan
Revised: December 2022
being contained. There was no damage to structures, personal property or city infrastructure.
5.1 .2 WILDLAND AND URBAN FIRES PROFILE – PROBABILITY OF
FUTURE EVENTS
The probably rating for this hazard is a 3, which means that there is a 10% to 100% chance that it will occur within the next year.
Due to the natural topography, terrain, volatile fuel types and climate conditions, wildfire in Moreno Valley will continue to be an ongoing threat. Fuel, like weather, is an ever-changing variable in the fire environment and must be addressed in any fire behavior forecast. Fuel type, loading, horizontal continuity, vertical arrangement, size and shape, moisture content, chemical content, fuel bed depth and live-fuel-to-dead-fuel ratio have a profound effect on fire behavior.
The potential for large and damaging fires to Moreno Valley is present throughout much of the year. In autumn and winter, when the Santa Ana winds typically blow, the potential for a large and damaging wildfire fire is increased significantly.
As the southern region of California continues to stay in a record drought conditions due to lower than expected rain fall totals, the potential for large vegetation fires in or near the City of Moreno Valley is highly predictable for major fires. With the population size and dense residential housing in the city, the threat for larger financial loss is also highly predictable.
5.2 WILDLAND AND URBAN FIRES VULNERABILITY OVERVIEW/ IMPACT
The severity rating for this hazard is a 3, which means that there is a potential for critical damage, causing injuries and/or illnesses resulting in permanent disability, complete shutdown of critical facilities for two weeks and/or 25% to 49% of property is severely damaged.
Impact to Population and Structures: Injuries and/or deaths may occur during fires. In addition, portions of the population could be affected by smoke inhalation and heat from the fire, as well as poisonous gases that cause disorientation and drowsiness. Those affected could be requested to evacuate their homes and businesses, causing both emotional and financial hardship. Seniors and individuals with access and functional needs may need special assistance to evacuate. Structures, vehicles, and personal belongings could be damaged or destroyed by fire. This may cause civilians to take independent action which raises the threat level and situational awareness for firefighters and other public safety entities.
Impact to Essential Facilities/Historical Sites: Damage to essential facilities would impact the ability to appropriately respond to emergencies. Damage to historical sites would be particularly devastating as they would be difficult to replace.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Impact to Infrastructure: Firefighting can cause an increased demand to the water supply. Infrastructure could be affected by fires and/or evacuations.
Internal Emergency Operations Centers are activated under the auspices of the Fire Department supervision. They would coordinate evacuation centers and assist with civilian evacuations and repopulation of an area once the threat of fire has been mitigated.
Future Development Trends: With the current and expected development of commercial and residential construction, the potential and expected threat will rise. New development is shown in Appendix C.
5.2. 1 WILDFIRE VULNERABILITY – POTENTIAL LOSS
As shown on Figure 5 -2 (map), there is vulnerability to residential property, businesses and essential facilities that are located in or near high fire areas within the City of Moreno Valley. Utilizing Moreno Valley and Riverside County Assessor Data, potential loss was calculated (no contents) and the results are:
TABLE 5 -2: POTENTIAL FINANCIAL LOSS NEAR HIGH FIRE AREA
BY TYPE
Building Type High Fire Area (#, Value)
Residential 1,395 - $ 323,762,617
Commercial 4 - $ 36,330,426
Critical Facilities 22 - $ 993,486
Historic Sites 0 - $ 0
If a wildfire siege such as the one that occurred in California from October to November 1993 were to occur and damage o ccurred to 50% of the structures located in the wildfire area, the potential loss would be $571 million. There are no known repetitive loss properties.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Figure 5-2: Moreno Valley High Fire Area Map – Revised August 1. 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
CHAPTER 6: FLOODING
Moreno Valley Rating: Severity = 3 Probability = 3
6.1 FLOODING PROFILE – OVERVIEW
There are four types flooding conditions that exist within the Moreno Valley area:
flooding in defined watercourses ; ponding; sheet flow ; and dam inundation.
Flooding within defined watercourses occurs within drainage channels and immediately adjacent floodplains. Ponding occurs when water flow is obs tructed due to manmade obstacles such as the embankments of S R-60 and other roadways, where they cross -defined watercourses. Sheet flow occurs when capacities of defined watercourses are exceeded, and water flows over broad areas.
Known flood-prone areas as noted in the General Plan as well as recorded in city maintenance files, include:
• Along the Quincy Channel between Cottonwood Avenue and Cactus Avenue.
• An extensive floodplain that extends along the Oliver Street alignment from a point north of Alessandro Boulevard to John F. Kennedy Drive and extending in a southwesterly direction as far as the northeast corner of Morrison Street and Filaree Avenue and the northeast corner of Nason Street and Iris Avenue.
• Along Heacock Street and Lateral A of the Perris Valley Channel between Cactus Avenue and a point north of the intersection of Lateral A and Indian Street (next to March Air Reserve Base).
• Along Sunnymead Boulevard between Frederick Street and Graham Street. • Along Pigeon Pass Road, between Sunnymead Ranch Parkway and Lawless Road.
• Along Moreno Beach Boulevard, between Juniper Avenue and Locust Avenue.
• Along Highland Avenue, between Redlands Boulevard and Alessandro Boulevard.
• Along Locust Avenue, between Moreno Beach Boulevard and northerly city Limits.
• Along Heacock Street, between Lake Summit Drive and Reche Vista Drive. • Along Hubbard Street, between Skyland Drive and Ironwood Avenue.
• Along Cottonwood Avenue, between Nason St and Martha Crawford Street. • Alessandro Boulevard, between Gilman Springs Road and Theodore Street.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
• Neighborhood bounded by Alessandro Boulevard, Brodiaea Avenue, Redlands Boulevard, and Merwin Street.
• Miramontes Court, north of Via Solana Court.
• Easterly side of neig hborhood east of Perris Boulevard, between Covey Road and Manzanita Avenue.
The City maintains 18,420 linear feet of open channels as ahown in the chart below:
TABLE 6 -1: CITY MAINTAINED OPEN CHANNELS
Area Street From To Linear
Feet
1 Old 215 Bay Ave. Alessandro Blvd. 95
2 Davis St. Ironwood Ave. Hemlock Ave. 1,070
3 Redlands
Blvd. Juniper Ave. SR-60 6,100
4 Redlands
Blvd.
Eucalyptus
Ave. Dracaea Ave. 1,260
5 Wilmont St. Bay Ave. Brodiaea Ave. 2,575
6 Redlands
Blvd. Bay Ave. Alessandro Blvd. 1,260
7 Theodore St. SR-60 Alessandro Blvd. 4,200
8 Quincy St. Brodiaea Ave.
Cactus Ave.
(S/s) 1,590
9 Cactus Ave.
(S/s)
Wilmont St.
(E/o)
Redlands Blvd.
(W/o) 270
Several portions of the Moreno Valley area are subject to a 100 -year flood, meaning a flood with a one percent chance of occurring in any given year . 100 year and 500-year floods, as well as dam inundation, are shown on Figure 6-1.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 6 -1: MORENO VALLEY FLOOD ZONES 100 - & 500 -YEAR ZONES – REVISED JULY 18, 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
6.1.1 FLOODING PROFILE – PREVIOUS OCCURRENCES
Moreno Valley has a long history of being affected by flooding. Notable flooding incidents since 2005 include:
TABLE 6 -1.1: HISTORY OF FLOODING IN MORENO VALLEY
Year Description
2005
DR-1577, January 2005, 12 homes were damaged throughout the city from flooding. Asphalt and pavement were washed out at various sites throughout the city. Heacock and Cactus channel flooded and block public right of way. $23K public assistance.
2005
DR-1585, February 2005, flooding in the area of Reche Vista, Ironwood and Davis St., Heacock channel north of JFK Blvd; 15 homes throughout the city with minor flood damage. $16K public assistance. 2010
DR-1884 Jan 2010 – Flooding damage/road closures throughout the city.
Example of damage included: erosion of Heacock Channel (south of Iris north of Cactus) causing encroachment to the roadway. Slope and down drain repair at Reche vista; damage to retention basin/drainage swales on Redlands Blvd; and debris /road cleanup throughout city. Damage assessment for the Heacock Channel area resulted in an approximate cost of $58 million, which included damages to infrastructures (roadway and utilities), commercial and residential structures, and undevelopable industrial and commercial lands due to flood plain.
2010
DR-1952, December 2010, Flooding was citywide. Heacock channel, 10 city parks, several home were damaged from flooding. Damage to the Indian Basin while under construction for improvement; flooding of Sunnymead Boulevard and surrounding businesses between Frederick Street and Graham Street. Preliminary damage assessment $998K. 2012
Severe rain and flooding citywide resulted in numerous residential flooding east of Redlands Blvd. in the Campbell Ave., Gifford Ave., and Hotchkiss St. neighborhood areas. Numerous visual sightings of tornadoes were reported.
2015
Flash flood caused flooding damages citywide. Severe damage was reported for the residential areas located on Hubbard Street and Dunlavy Court, residential area on Kitching Street-Ivy Lane Neighborhood, on Lawless Road – Pigeon Pass Street, and Camino Del Coronado Street- Sunnymead Ranch were also affected.
6.1.2 FLOODING PROFILE – PROBABILITY OF FUTURE EVENTS The probably rating for this hazard is a 3, which means that there is a 10% to 100% chance that it will occur within the next year.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Climate change is having a profound impact on California water resources, as evidenced by changes in snowpack, sea level, and river flows. These changes are expected to continue in the future. This potential change in weather patterns can also increase flood risks.11
6.2 FLOODING VULNERABILITY – OVERVIEW/IMPACT
The severity rating for this hazard is a 3, which means that there is a potential for critical damage, causing injuries and/or illnesses resulting in permanent disability, complete shutdown of critical facilities for two weeks and/or 25% to 49% of property is severely damaged. Flooding could cause cascading hazards such as landslides, dam failure, pipeline hazards, transportation incidents, power outages, hazardous materials incidents, civil unrest, diseases, and insect infestations.
Impact to Population and Structures: Flooding can cause a huge impact to both the population and structures. Injuries and/or deaths could occur from drowning or traffic collisions, as well as, from cascading hazards such as power lines down, landslides and other hazards. Communications could be impacted by flooding and people could be evacuated from dangerous areas. Seniors and individuals with access and functional needs may need special assistance to evacuate. Structures could be damaged, as well as property.
Impact to Essential Facilities/Historical Sites: Essential facilities fall within the 100 year and 500-year flood zones and therefore could suffer damage from flooding.
Historical sites could also suffer damage.
Impact to Infrastructure: Flooding could cause power outages, which would affect traffic lights and transportation. Damage to pipelines and communication infrastructure could occur. Mud and debris could affect infrastructure.
Future Development Trends: Future development will result in an increased demand for flood control and drainage services. Moreno Valley participates in the NFIP as well as the voluntary CRS, which is administered by FEMA. The NFIP program provides federal flood insurance and federally financed loans for property owners in flood prone areas. For more information about the city’s participation in NFIP and CRS, see Chapter 20.4 National Flood Insurance Program. To qualify for federal flood insurance, the city must identify flood hazard
11 https://water.ca.gov/Programs/All-Programs/Climate-Change-Program/Climate-Change-and- Water Accessed July 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
areas and implement a system of protective controls. In addition, all development is required to comply with Riverside County Flood Control and Water Conservation District requirements for construction of master drainage plan facilities. New development is shown in Appendix C.
6.2. 1 FLOODING VULNERABILITY – REPETITIVE LOSS
There are no repetitive loss properties.
6.2.2 FLOODING VULNERABILITY – POTENTIAL LOSS
The City was unable to utilize HAZUS-MH for flooding because the data only includes river overflows. Utilizing Moreno Valley and Riverside County Assessor Data, potential loss was calculated (no contents) and the results are:
TABLE 6-2: POTENTIAL FINANCIAL LOSS IN FLOOD ZONES BY
TYPE
Building Type 100 Year Flood
(#, Value) 500 Year Flood (#, Value)
Residential 115 – $27,418,423 2,607 – $640,584,254
Commercial 30 – $10,932,260 97 – $668,845,383
Critical Facilities 1 – N/A* 22 – $ 73,299,820 Historic Sites 0 3 – $ 852,675
* Note: Structure value not in assessor data
CHAPTER 7: DROUGHT
Moreno Valley Rating: Severity = 2 Probability = 3
7.1 DROUGHT PROFILE – OVERVIEW
Drought is an extremely dry climatic period where the available water falls below statistical average for a particular region. Drought is define d by factors including rainfall, vegetation conditions, agricultural productivity, soil moisture, water levels in reservoirs a nd lakes, and stream flow. The three forms of drought include :
meteorological drought; agricultural drought; and hydrologic drought.
A meteorological drought is defined as prolonged periods of less than average precipitation; an agricultural drought is defined as insufficient moisture for an average crop yield; a hydrologic drought is defined water levels falling below sustainable levels.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
7.1.1 DROUGHT PROFILE – PREVIOUS OCCURRENCES
The City of Moreno Valley has an early history of drought when, in 1887, Frank E.
Brown sought to provide water to the barren plain that is now Moreno Valley. Mr.
Brown built a dam at Bear Valley in the San Bernardino Mountains and formed the Bear Valley Land and Water Company . This company provided water to the City of Redlands, and communities of Alessandro and Moreno Valley.
Due to a drought affecting Southern California in 1899, Mr. Brown had to terminate the water supply to what would later become the City of Moreno Valley as the City of Redlands had first rights to the water supply. As a result of the loss of water delivery, the residents of Moreno Valley were forced to leave the area in search of a more livable environment . By 1901, few people resided in Moreno Valley, and those who remained turned primarily to the dry farming of hay, grain, and grapes.12
Table 7-1 shows a chronological list of dates of severe droughts that have occurred in California:
TABLE 7 -1: HISTORY OF DROUGHTS
Year Description
1929-
1934 The most severe drought in California’s history at that time13 1943-
1951 The more severe in southern California14
1959-
1962 Was more severe in the Sierra Nevada15
1976-
1977 The single driest year on record for California16
1987-
1992
Caused 23 of California’s 58 counties to declare county-wide local states of emergency in 199117
12 https://www.morenovalleyhistoricalsociety.org/about-us Retrieved July 2022 13 https://water.ca.gov/water-basics/drought Retrieved July 2022 14 https://water.ca.gov/water-basics/drought Retrieved July 2022 15 https://water.ca.gov/water-basics/drought Retrieved July 2022 16 https://water.ca.gov/water-basics/drought Retrieved July 2022 17 http://www.water.ca.gov/drought/docs/CalDrought.pdf Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
2007-
2009
One of the more severe droughts in California’s history with 2007 setting records in the southern coastal region as one of the driest years on record.18
2012-
2014
Driest three-year period in the measured record of statewide precipitation.19
2020 -
2022 Extreme drought conditions are ongoing
7.1.2 DROUGHT PROFILE – PROBABILITY OF FUTURE EVENTS The probably rating for this hazard is a 3, which means that there is a 10% to 100% chance that it will occur within the next year.
Based on the climate change impacts and predictors, it is highly probable that Moreno Valley will be impacted by additional periods of drought over the next 10- 20 years. By the end of this century, the Sierra snowpack is projected to experience a 48-65 percent loss from the historical April 1st average. This loss of snowpack means less water will be available for Californians to use.20 Climate change is having a profound impact on California water resources, as evidenced by changes in snowpack, sea level, and river flows. These changes are expected to continue in the future and could add additional challenges for water supply reliability.21
7.2 DROUGHT VULNERABILITY – OVE RVIEW / IMPACT/
DEVELOPMENT TRENDS
The severity rating for this hazard is a 2, which means that there is a potential for limited damage, causing injuries and/or illnesses, complete shutdown of critical facilities for more than one week and/or 10% of property that is severely damaged. Drought could cause cascading incidents such as fires, flooding, insect infestations and civil unrest.
18 http://www.water.ca.gov/drought/docs/timeline-present.pdf Retrieved July 2022 19 https://water.ca.gov/-/media/DWR-Website/Web-Pages/Water- Basics/Drought/Files/Publications-And-Reports/033021_2012-16-Drought-Report_v4_ay11.pdf Retrieved July 2022
20 https://water.ca.gov/water-basics/drought Retrieved July 2022 21 https://water.ca.gov/water-basics/drought Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Impact to Population and Structures: Drought could impact the population by the imposition of water usage restrictions, thus impacting crops, livestock, land, vegetation, and urban water supplies. One of the most significant impacts could be its effect on wildfire protection. Dry vegetation has a potential to increase wildfires in and around the City of Moreno Valley. In addition, firefighting efforts may be hindered due to inadequate water supplies. Drought may also cause soil to compact and not absorb water well, thus making an area more susceptible to flooding.
Impact to Essential Facilities/Historical Sites: Essential facilities and historical sites could be impacted by inadequate water supplies and the potential for flooding in and around the site. Firefighting efforts may be hindered due to inadequate water supplies and damage to landscaping may occur.
Impact to Infrastructure: The impact of drought to infrastructure could be severe as the availability of water could be affected. Drought could affect the stream flow, snowpack, lakes, reservoirs, and groundwater levels.
Development Trends: Future development of buildings, structures, critical facilities, and infrastructure could be impacted by drought. A potential of inadequate water supply during periods of drought may need to be considered for future development. New development is shown in Appendix C.
7.2. 1 DROUGHT VULNERABILITY – POTENTIAL LOSS
Drought’s characteristics along with its far -reaching impacts make its effects on society, economy, and environment difficult, though not impossible, to identify and quantify.22 Due to the limitation of data, it is not possible to analyze the potential loss for Moreno Valley. However, there would be a significant loss from its related impact to wildfires, and the significant costs incurred to replace landscaping. There are no known repetitive loss properties.
CHAPTER 8: LANDSLIDE
Moreno Valley Rating: Severity = 2 Probability = 2
22 Understanding the Drought Phenomenon: The Role of Definitions (Wilhite & Glantz, 1985) https://water.ca.gov/-/media/DWR-Website/Web-Pages/Water-Basics/Drought/Files/Publications- And-Reports/033021_2012-16-Drought-Report_v4_ay11.pdf Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
8.1 LANDSLIDE PROFILE – OVERVIEW
The primary factors that determine an area’s susceptibility to slope instability are the underlying geologic and soils characteristics. The abundant shales and siltstones underlying the Badlands are highly porous and do not hold together well when wet, which can lead to slope instability and landslides. Cascading hazards contributing to the possibility of landslides include rainstorms and earthquakes. A “slow moving” landslide reportedly exists along Gilman Springs Road in the eastern portion of the Moreno Valley area.
A 2002 report prepared for the California Department of Transportation states that there have been over 8,500 landslides mapped within the corridor area between Gilman Springs Road and Jack Rabbit Trail. Of those, only 281 are the relatively deep, slower-moving types of landslides that typically cause damage to roadways.
The majority of the larger and deeper landslides that were mapped are dormant - mature based on the landslide features and level of erosion. Dormant -mature in this area may only mean a low l evel of activity over several decades. The small number of historic rockslides that was mapped does suggest, however, that the deeper and slower moving slides are not a very frequent occurrence in this highway corridor.
In contrast, small, shallow, rapidl y moving debris flows are very abundant in the San Timoteo Badlands. Thousands of individual flows were triggered by the storms of 1969, and hundreds of additional slides were triggered by the storms of 1998.
Overall, the debris flow process is probably the main erosional force on the slopes of the badlands.23
23 https://www.conservation.ca.gov/cgs/Documents/Landslides/Caltrans/SR_186/CT60riv.pdf Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 8 -1: MORENO VALLEY SLOPE ANALYSIS – REVISED AUGUST 16, 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
8.1.1 LANDSLIDE PROFILE – PREVIOUS OCCURRENCES
TABLE 8 -1: HISTORY OF LANDSLIDES
Year Description
2005 Slope failure in the Bonita Heights area of Moreno Valley. Amount of damage unknown.
2010
Slope failure due to winter storm impacting Duckbill and Mallow drive in Moreno Valley. Voluntary evacuations of 6 houses.
Amount of damage unknown.
2015
Mud flowing down Pigeon Pass Road and into homes on
Whitewater Circle in Moreno Valley. The mud ran off private property at the northeast corner of Pigeon Pass and Lawless roads24.
8.1.2 LANDSLIDE PROFILE – PROBABILITY OF FUTURE EVENTS The probably rating for this hazard is a 2, which means that there is between a 1% and 10% chance that it will occur within the next year.
8.2 LANDSLIDE VULNERABILITY – OVERVIEW/IMPACT
The severity rating for this hazard is a 2, which means that there is a potential for limited damage, causing injuries and/or illnesses, complete shutdown of critical facilities for more than one week and/or 10% of property is severely damaged.
Landslides could cause cascading hazards such as hazardous materials incidents, transportation incidents, power outages and pipeline incidents.
Impact to Population and Structures: There could be injuries and/or deaths from landslides due to debris flow and/or flooding. Damage to structures and personal property could occur due to the debris flow and/or flooding. People could be asked to evacuate and/or detour. Seniors and individuals with access and functional needs may need special assistance to evacuate.
Impact to Essential Facilities/Historical Sites: Essential facilities and/or historical sites are not located near landslide areas; however, they could be impacted from failure of smaller slopes, debris flow and flooding.
Impact to Infrastructure: There could be plugging of culverts and related flooding and erosion of basin overflows. Transportation corridors could be impacted, causing traffic to be detoured. Evacuations could occur.
24 https://www.pe.com/2015/07/21/moreno-valley-mud-damage-not-preventable-city-says/ Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Development Trends: Future development of buildings, structures, critical facilities, and infrastructure would not be impacted. New development is shown in Appendix C.
8.2. 1 LANDSLIDE VULNERABILITY – POTENTIAL LOSS
If there w as a landslide affecting the SR-60 San Timoteo Badlands area, the potential loss would be to people traveling on SR-60 and may not involve Moreno Valley residents. As a heavily travelled transportation corridor for products, goods and services, any prolonged impact to the highway could result in financial impacts to haulers, consumers, and impacted businesses. The California Department of Transportation (Caltrans) would be responsible for losses related to the highway.
There are no known repetitive loss properties.
CHAPTER 9: INSECT IN FESTATION
Moreno Valley Rating: Severity = 1 Probability = 2
9.1 INSECT INFESTATION PROFILE – OVERVIEW
The City of Moreno Valley is vulnerable to insect infestation such as Africanized Honeybees, Red Imported Fire Ant s, and mosquito es which can cause vector - borne diseases. By 1998, the red imported fire ants were found in most of Orange County and in parts of Riverside County. These ants can become highly aggressive if their nests are disturbed There are reports indicating people who are allergic to their venom have died.25 In the past, Moreno Valley has been subject to quarantine limiting the movement of plants and soil (Figure 9-1).
25 https://www.ars.usda.gov/arsuserfiles/60360510/publications/Klotz_et_al-2003(M-3789).pdf Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 9 -1: IMPORTED FIRE ANT QUARANTINE 26
The Africanized Honeybee is virtually indistinguishable from the common honeybee, but the Africanized Honeybees are more aggressive in defending their home or when disturbed. These bees will swarm in the hundreds to thousands in order to sting anything perceived as a threat. These attacks can be deadly in nature due to the sheer number of bee stings that an animal or person receives, resulting in onset of anaphylactic shock. The only known Africanized Honeybee hive in Moreno Valley was located in 1998 at the Moren o Valley Unified School District; however, the Africanized Honeybee has been in California since 1994 and has completely colonized numerous counties, including Riverside County.
26 https://www.aphis.usda.gov/aphis/home Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Vector-borne disease – Vector-borne diseases are among the most complex to prevent and control 27. These bacterial and viral diseases are transmitted by mosquitoes, ticks, and fleas. Due to the difficulty in tracking vector behavior vector- borne diseases pose a major public health concern.
9.1.1 INSECT INFESTATION PROFILE – PREVIOUS OCCURRENCES
TABLE 9 -1: HISTORY OF INSECT INFESTATION
Year Description
1998 Red imported fire ant, Latin name Solenopsis invicta, caused 1 square mile of Moreno Valley to be quarantined.28
1998
An Africanized Honeybee, Latin name Apis mellifera scutellata Lepeletier, attack occurred in October at the Moreno Valley Unified School District located on Perris Boulevard.29
2000 A resident in Banning, CA is killed by swarm of bees. Banning is located 22 miles north of Moreno Valley.30
2006
Red imported fire ant hive found on the football field at Canyon Springs High School. Football field was out of service for approximately one month due to the infestation.31
2010 Two horses are killed by swarming bees in the City of Menifee which is located just 17.8 miles south of Moreno Valley.32
27 https://www.cdc.gov/ncezid/dvbd/about.html Retrieved July 2022 28 https://urban.ucr.edu/sites/default/files/2020-05/1999_greenberg_et_al_fire_ants_in_ca.pdf Retrieved July 2022
29 https://www.latimes.com/archives/la-xpm-1998-dec-17-me-54929-story.html Verified November 7, 2016, Retrieved July 2022
30 https://www.pe.com/2019/09/28/woman-in-banning-is-stung-by-bees-more-than-100-times/ Retrieved July 2022
31 https://www.9news.com/article/news/weird/high-schools-main-rivals-are-fire-ants/73- 342099441 Retrieved July 2022
32 http://www.sandiegouniontribune.com/sdut-menifee-horses-killed-by-swarming-bees- 2010jun24-story.html Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
2011 Bee attack in the Arlanza area of the City of Riverside kills a horse, owner is hospitalized. Riverside is a neighboring jurisdiction to Moreno Valley.33 2011 Swarm of bees in Wildomar neighborhood attack dog. Wildomar is located 35 miles south of Moreno Valley.34
2013 A total of 35 confirmed West Nile Virus human cases reported in Riverside County.
2014 A total of 15 confirmed West Nile Virus human cases reported in Riverside County.
2014 Bark beetle found as far south as San Diego, as far east as the City of Eastvale which is located approximately 18 miles west of Moreno Valley.35 2015 Two confirmed human cases of West Nile Virus in Riverside County. A 37- year-old man and 53-year-old woman.36
2016 First Zika virus case July of 2016 in Riverside County37
33 http://latimesblogs.latimes.com/lanow/2011/07/horse-killed-bees-riverside.html Verified November 8, 2016, Retrieved July 2022,
34 http://www.nbclosangeles.com/news/local/Bees-Sward-Riverside-Neighborhood- 125669843.html Retrieved July 2022
35 http://www.latimes.com/science/la-sci-beetle-trees-20140530-story.html Retrieved July 2022 36 https://www.rivcoph.org/Portals/0/LatestNews/West_Nile_Virus_8-22-12.pdf Retrieved July 2022
37 https://abc7.com/zika-virus-mosquito-disease-cdc/1414481/ Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
In Riverside County, mosquito-borne diseases, such as West Nile Virus and Zika Virus, have been of increased concern. The West Nile Virus is a seasonal epidemic that flares up in the summer and typically continues into fall. As of November 2016, the California Department of Public Health reported 5 human cases, 16 dead birds, and 32 mosquito samples that tested positive for West Nile in Riverside County; however, there are no active reported cases in 2022.38 Figure 9-2 shows the West Nile Virus activity in California Counties as of November 2016.
Zika is spread through mosquito bites, during blood transfusions, during sex with a person infected with Zika, and from a pregnant woman to her fetus during pregnancy or around the time of birth. The Zika virus has been detected in several counties surrounding Moreno Valley. The first case in Riverside County was identified in July 2016 in a man who traveled outside the United States.39 In August 2016, the second case in Riverside County was identified when a woman became infected while traveling outside the country and is expected to completely recover, according to a press release from Riverside University Health System.40
On May 26, 2016, the California Department of Public Health issued a Health and Travel Advisory to Californians to avoid mosquito bites during travel to Latin American countries and the Caribbean where there has been increased reports of mosquito-borne disease, including Zika, chikungunya and dengue.41
38 http://westnile.ca.gov/ Retrieved July 2022
39 https://abc7.com/zika-virus-mosquito-disease-cdc/1414481/ Retrieved July 2022 40 http://www.pe.com/articles/county-810271-infected-zika.html Retrieved July 2022 41 https://www.cdph.ca.gov/Programs/OPA/Pages/NR16-033.aspx Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 9 -2: WEST NILE VIRUS ACTIVITY IN CA LIFORNIA 20 22 42
42 https://westnile.ca.gov/download?download_id=4714 Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
9.1.2 INSECT INFESTATION PROFILE – PROBABILITY OF FUTURE EVENTS
The probably rating for this hazard is a 2, which means that there is between a 1% and 10% chance that it will occur within the next year.
9.2 INSECT INFESTATION VULNERABILITY – OVERVIEW/IMPACT The severity rating for this hazard is a 1, which means that there is a potential for negligible damage, causing injuries and/or illnesses treatable with first aid, minor quality of life lost, shutdown of critical facilities and services for 24 hours or less and/or no more than 1% of property is severely damaged. Insect infestation could cause cascading hazards such as pandemic flu or disease.
Impact to Population and Structures: Injuries and/or deaths from insect infestations are likely. The amount of injuries and/or deaths is not expected to be high. Insects pose an impact to vegetation as well as structures. The bark beetle and gold spotted oak borer, for instance, devastate forests and trees and pose deadly fire and structure damage through falling into structures.
Common city trees, such as American sweetgum and maple, could become public branch-dropping hazards. Further, native trees such as the California sycamore and the coast live oak have started to succumb, creating a fire risk in the form of dead, dry tinder.43
Impact to Essential Facilities/Historical Sites: There could be an impact to essential facilities and historical sites, as well as landscaping.
Impact to Infrastructure: No impact is expected.
Development Trends: Future development of buildings, structures, critical facilities, and infrastructure could be impacted by insect infestations. Eradication costs may need to be considered. New development is shown in Appendix C.
9.2. 1 INSECT INFESTATION VULNERABILITY – POTENTIAL LOSS Insect infestation and vector -borne diseases could impact the City of Moreno Valley. Due to the difficulty in tracking vector behavior, the risk for vector -borne diseases is high. The actual cost is not known. There are no known repetitive loss properties.
43 http://www.latimes.com/science/la-sci-beetle-trees-20140530-story.html Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
CHAPTER 10: EXTREME WEAT HER
Moreno Valley Rating: Severity = 2 Probability = 3
10.1 EXTREME WEATHER PROFILE – OVERVIEW
For purposes of profiling the extreme weather hazard for this plan, extreme weather includes lightning, hail, freezing and heat. Flooding is profiled in chapter 6 and severe wind is profiled in chapter 11. Extreme weather could affect the entire City of Moreno Valley.
Lightning – Lightning is a discharge of electrical energy which creates a “bolt” when the buildup of positive and negative charges becomes strong enough.44 Lightning can strike anywhere and typically follows the shortest, easiest path to the earth, striking buildings, trees, or other objects such as poles and metal objects. Lightning can enter a building through a direct strike by striking a metal object that is attached to the building or by following a power line or unground wire fence that is attached to a building.
Hail/Freezing – Hail is a form of solid precipitation. It consists of balls or irregular lumps of ice, each of which is referred to as a hail stone. Hail formation requires environments of strong, upward motion of air with the parent thunderstorm (similar to tornadoes) and lowered heights of the freezing level (< 32 °Fahrenheit, 0 Celsius). Hail is most frequently formed in the interior of continents within the mid-latitudes of Earth, with hail generally confined to higher elevations within the tropics.45
Heat – As climate change continues to impact weather, the once summer-only heat continues to extend to other parts of the calendar year. Extreme heat may occur in the summer.
10.1.1 EXTREME WEATHER PROFILE – PREVIOUS
OCCURRENCES
Table 10-1 shows the history of extreme weather for the City of Moreno Valley and surrounding area.
44 Mitigation Ideas: A Resource for Reducing Risk to Natural Hazards https://www.ready.gov/severe-weather Retrieved July 2022 45 http://en.wikipedia.org/wiki/hail
Moreno Valley Hazard Mitigation Plan
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TABLE 10 -1: HISTORY OF EXTREME WEATHER
Year Description
2005 February 24, Lightning struck a girl in Moreno Valley. 46 2008 March 23, Hail on Moreno Beach Drive in Moreno Valley. The nickel size hail damaged awnings and trees. 47
2008 May, 22, Heavy rain from thunderstorms. 28 residences were flooded and damaged in the northeast Moreno Valley. 48
2008 December 26, Freezing temperatures in Moreno Valley, (31°)49 2010 December 30, Freezing temperatures in Moreno Valley, (32°)50 2012 August 30 – Flooding and Heavy Rain in Moreno Valley. Rainfall of
1.53 inches fell in one hour at March AFB in Riverside.51 2012 September 28 – Extreme Heat in surrounding areas. Temperatures expected to range between 99 to 109 degrees Fahrenheit.52 2013
December 5 – Freezing weather in the surrounding area. A storm is delivering a quarter inch of rain and 4 to 8 inches of snow in the mountains.53
2015
July 21 – Flooding and Heavy Rain in Moreno Valley. Downpour dumped 1.5 inches of rain on the northwest portion of the city in 45 minutes.54
2016 June 20 – Extreme Heat Conditions with temp of 109 and low humidity made fire danger high.
46 http://www.wrh.noaa.gov/sgx/document/weatherhistory.pdf 47 http://weathercurrents.com/morenovalley/PhotoDisplay.do?Id=9&Story=main/22May2008Hail 48 http://www.wrh.noaa.gov/sgx/document/weatherhistory.pdf 49 http://weathercurrents.com/morenovalley/NewsItemDisplay.do?Id=527 50 http://weathercurrents.com/morenovalley/NewsItemDisplay.do?Id=704 51 http://www.pe.com/articles/valley-652399-storm-moreno.html Retrieved July 2022 52 https://www.ncdc.noaa.gov/stormevents/ Retrieved July 2022 53 http://www.pe.com/articles/cold-682944-plants-snow.html Retrieved July 2022 54 http://www.pe.com/articles/storm-774196-city-insurance.html Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
2017 Moreno Valley experienced 36 days with temperatures over 100 degrees; conditions were dry and created high fire danger55. 2018
Moreno Valley only received just over 4” of rain the entire winter, creating dry fuel conditions. There were 26 days of 100 degree or higher heat between May and August.57
2019 Moreno Valley received 19.12” of rain this year and 32 days were above 100 degrees57.
2020
September 6th Moreno Valley experienced its highest temperature of 115 degrees o on a day that averages 82 degrees; it also received its lowest recorded temperature for the year of 31 degrees on a day that averages 54 degrees57.
2021 Moreno Valley experienced 42 days with temperatures over 100 degrees and precipitation levels peaked at 11.76” 57.
10.1.2 EXTREME WEATHER PROFILE – PROBABILITY OF FUTURE EVENTS
The probably rating for this hazard is a 3, which means that there is a 10% to 100% chance that it will occur within the next year.
10.2 EXTREME WEATHER VULNERABILITY – OVERVIEW/IMPACT The severity rating for this hazard is a 2, which means that there is a potential for limited damage, causing injuries and/or illnesses, complete shutdown of critical facilities for more than one week and/or 10% of property is severely damaged.
Extreme weather can cause cascading hazards such as pipeline incidents, transportation incidents, power outages, hazardous materials incidents, and civil unrest.
The city will open Warm and Cool centers at the Senior Center and the Library to provide drop-in sites for vulnerable individuals, seniors, the disabled, and others in need of temporary relief from the extreme weather.
To ensure the safety of the population, the city follows guidelines to prepare and respond to the effects of extreme weather that exceed what is considered normal for the geographic locale. Riverside University Health System Public Health issues extreme weather advisories in partnership with National Weather Service (NWS) as outlined below.
55 https://weathercurrents.com/morenovalley/Archive2021.do Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
TABLE 10 -2: NATIONAL WEATHER SERVICE WEATHER
ADVISORIES
Advisory Description
Heat Advisory Excessive
Heat Outlooks
Outlooks are issued when the potential exists
for an excessive heat event in the next 3-7
days. An Outlook provides information to those
who need considerable lead-time to prepare for
the event.
Excessive Heat Watches Heat watches are issued when conditions are favorable for an excessive heat event in the
next 24 to 72 hours. A Watch is used when the
risk of a heat wave has increased but its
occurrence and timing is still uncertain.
Heat Advisory A heat advisory is issued within 12 hours of the onset of extremely dangerous heat conditions.
The general rule for this Advisory is when the
maximum heat index temperature is expected
to be 100° or higher for at least 2 days and
nighttime air temperatures will not drop below
75°.
Inland Empire:
103° or higher (June-Sept) / 100° or higher
(Oct)
Mountains:
95° or higher (June-Sept) / 90° or higher (Oct)
Low Desert:
112° or higher (June-Sept) / 108° or higher
(Oct)
Moreno Valley Hazard Mitigation Plan
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Advisory Description
Excessive Heat Warning Excessive heat warning is issued within 12 hours of the onset of extremely dangerous heat
conditions. The general rule for this Warning is
when the maximum heat index temperature is
expected to be 105° or higher for at least 2
days and nighttime air temperatures will not
drop below 75°.
Inland Empire:
108° or higher (June-Sept) / 105° or higher
(Oct)
Mountains:
100° or higher (June-Sept) / 95° or higher
(Oct)
Low Desert:
115° or higher (June-Sept) / 113° or higher
(Oct)
Cold Warning A Cold Warning is issued when temperatures are expected to fall below 40˚.
Source: Community Action Partnership56
Impact to Population and Structures: The impact to the population from lightning strikes, hail or freezing and/or extreme heat could involve injuries and/or deaths.
For heat, the city’s population is susceptible to heat exhaustion and heat stroke.
The elderly, children, people with functional needs and those that have pre- existing medical conditions are especially susceptible to heat injuries during extreme heat.
Structures may be vulnerable to damage from varying types of extreme weather.
Extreme heat also has potential to impact vegetation.
Impact to Essential Facilities/Historical Sites: Essential facilities and/or historical sites may be susceptible to damage from types of extreme weather. Extreme heat may also impact vegetation.
Impact to Infrastructure: Extreme weather may cause power outages and disruptions to communications and transportation.
56 https://www.capriverside.org/ Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
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Development Trends: Since vulnerability to extreme weather is citywide, future development trends are not expected to impact the vulnerability to extreme weather. New development is shown in Appendix C.
10.2. 1 EXTREME WEATHER VULNERABILITY – POTENTIAL LOSS Multiple structures throughout the city have the potential to be impacted by extreme weather. For example, if a lightning event were to damage the Conference and Recreation Center, located on Frederic k Street, the potential loss could be from structural and infrastructure damage. The value of the building is $12,252,110 (does not include contents). It is estimated that the potential loss could b e 1% of the value, which would be $122,521. There are no known repetitive loss properties.
CHAPTER 1 1: SEVERE WIND
Moreno Valley Rating: Severity = 2 Probability = 3
11.1 SEVERE WIND PROFILE – OVERVIEW
Winds around Moreno Valley are generally cyclic, blowing from the southwest and west, especially in the summer and during the day. At night, especially during the winter, a weak offshore breeze occurs. Occasionally in the fall these cyclical breezes are interrupted by strong, dry, warm desert winds (Santa Anas) from the north/northeast.
Riverside County follows wind warnings based on NWS criteria as shown below.
TABLE 11 -1: NATIONAL WEATHER SERVICE WIND ADVISORIES
Advisory Description
High Wind Watch A High Wind Watch is issued when the following conditions are possible:
1) sustained winds of 40 mph or higher for one hour
or more
OR
2) wind gusts of 58 mph or higher for any duration.
High Wind Warning
A High Wind Warning is issued when the following
conditions are expected:
1) sustained winds of 40 mph or higher for one hour
or more
OR
2) wind gusts of 58 mph or higher for any duration.
Wind Advisory
A Wind Advisory is issued when the following
conditions are expected:
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
1) sustained winds of 31 to 39 mph for an hour or
more.
AND/OR
2) wind gusts of 46 to 57 mph for any duration.
Extreme Wind Warning
An Extreme Wind Warning is issued for surface
winds of 100 knots (115 MPH) or greater associated
with non-convective, downslope, derecho (NOT
associated with a tornado), or sustained hurricane
winds are expected to occur within one hour.
Source: National Weather Service57
11.1.1 SEVERE WIND PROFILE – PREVIOUS OCCURRENCES
The City of Moreno Valley and surrounding area has a history of chronic windstorms. While extremely rare, the Moreno Valley area is also susceptible to tornadoes. In May of 2008, two tornadoes barreled across I-215 south of March Air Reserve Base, knocking over a tractor trailer and several box cars from a nearby train.58
Figure 11-1: May 2008 Two Tornadoes Touch Down Across I-21559
57 https://www.weather.gov/lwx/WarningsDefined Retrieved July 2022 58http://www.pe.com/articles/zone-788341-elsinore-lake.html Retrieved July 2022 59 Photo From Anonymous Author
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
TABLE 11 -2: HISTORY OF SEVERE WIND/ TORNADOES NEAR
MORENO VALLEY
Year Description
1955 Tornado north of Moreno Valley60
1982 Tornado in Riverside.
1996 Tornado in Cabazon. Threw a 5-ton mobile home 30 feet. Minor damage to six other mobile homes.
1998 Tornado in Homeland, Funnel clouds in in Homeland and Moreno Valley. Damage to mobile homes on Homeland.
2005
A tornado hit Hemet. A funnel cloud was reported in Mira Loma. The tornado picked up a storage shed in Diamond Valley and threw it into a power pole.
2005 A tornado struck Hemet. Trees downed.
2005 60 -70 mph winds hit the Hemet, Canyon Lake, and Menifee region. 2006 50 mph+ winds demolished the “M” on Box Springs Mountain, above Moreno Valley
2008
May 22, Four Tornadoes touched down near Moreno Valley, one was rated on the Enhanced Fujita Scale an EF-2 and was on the ground for an exceptional 21 minutes. 9 railroad cars were derailed. A semi-truck was lifted 30 -40 feet in the air, severely injuring the driver. Damage to roofs, trailers and sheds occurred.61
2015 Wind speeds of up to 52 mph hit Moreno Valley, causing major limb loss and or tree uprooting.
The original Fujita scale, which was developed in 1971 and ranges from F0 to F5, is based upon the type and severity of damage a tornado produced. The Enhanced Fujita (EF) Scale was devised by a panel of meteorologists and engineers convened by the Wind Science and Engineering Research Center at Texas Tech University62.
60 https://data.desertsun.com/tornado-archive/california/9990151/ Retrieved July 2022 61 https://data.desertsun.com/tornado-archive/california/102641/ Retrieved July 2022 62 https://weather.com/storms/tornado/news/enhanced-fujita-scale-20130206 Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 11 -1.1: ENHANCED FUJITA SCALE 63
11.1.2 SEVERE WIND PROFILE – PROBABILITY OF FUTURE
EVENTS
The probably rating for this hazard is a 3, which means that there is a 10% to 100% chance that it will occur within the next year.
11.2 SEVERE WIND VULNERABILITY – OVERVIEW/IMPACT
The severity rating for this hazard is a 2, which means that there is a potential for limited damage, causing injuries and/or illnesses, complete shutdown of critical facilities for more than one week and/or 10% of property is severely damaged.
Severe wind could cause cascading hazards such as transportation and hazardous materials incidents, power outages, fires, and pipeline incidents.
Impact to Population and Structures: Severe wind and/or tornadoes could cause major injuries. The potential for impaled objects exists as well. Severe wind and/or tornadoes also pose damage to structures and cause an increased chance of fires.
63 https://weather.com/storms/tornado/news/enhanced-fujita-scale-20130206 Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
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Impact to Essential Facilities/Historical Sites: Severe wind and/or tornadoes could cause damage to essential facilities and/or historical sites and cause an increased chance of fires.
Impact to Infrastructure: Severe wind and/or tornadoes could cause power outages.
Development Trends: Future development of buildings, structures, critical facilities, and infrastructure could be impacted by severe winds and/or tornadoes; however, there are no recommendations for changes to development trends.
New development is shown in Appendix C.
11.2. 1 SEVERE WIND VULNERABILITY – POTENTIAL LOSS
Multiple structures throughout the city have the potential to be impacted by severe wind. For example, if a severe wind event were to occur, causing a power outage near the Moreno Valley Mall area during mall hours, the potential loss could be loss of retail sales and the cost to restore power. Due to limitation of data available, it is not possible to estimate the potential loss. There are no known repetitive loss properties.
Moreno Valley Hazard Mitigation Plan
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CHAPTER 1 2: DAM FAILURE/INUNDATION
Moreno Valley Rating: Severity = 2 Probability = 2
12.1 DAM FAILURE/INUNDATION PROFILE – OVERVIEW
Dam inundation is a potential flood hazard in several portions of Moreno Valley from two dams: Pigeon Pass Dam (Poorman’s Reservoir) and Perris Dam.
Pigeon Pass Dam: Failure of the Pigeon Pass Dam (Poorman’s Reservoir) could result in extensive flooding along the downstream watercourse. The risk of flooding due to dam failure is limited to the period during and immediately after major storms. The reservoir does not retain water throughout the year.
Perris Dam: Failure of the Perris Dam would only affect a very small area south of Nandina Avenue along the Perris Valley Storm Drain and the Mystic Lake area in the southeast corner of Moreno Valley.
In 2005, a study by the state found that the Perris Dam likely would crumble in the range of a 7.5 magnitude earthquake, unleashing billions of gallons of water across western Riverside County. After that, the lake was dropped 25 feet to a safer level and will remain there until repairs can be completed. The seismic repairs began in October 2014 and have been completed.64
During remediation, the state injected cement and soil into the deepest and m ost unstable parts of the dam's foundation so it will better withstand shaking from an earthquake. A stability berm w as built on top of the new foundation, allowing the lake to be taken to its previous level. A new outlet tower to funnel lake water into the regional drinking water system was also built.
A two-mile-long emergency channel has been constructed next to the Ramona Expressway so large water releases during a disaster would mostly be directed away from neighborhoods and into a storm drain.
The Perris dam constantly assessed and monitored.
64 http://www.water.ca.gov/lakeperris/
Moreno Valley Hazard Mitigation Plan
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Figure 12-1: Perris Dam Construction Project65
A map of Moreno Valley 100-year flood, 500 -year flood, and dam in undation is included in Chapter 6 (Figure 6-1). Table 12-1 shows a summary of Pigeon Pass and Perris Dam information.
TABLE 12 -1: PIGEON PASS AND PERRIS DAM INFORMATION
SUMMARY
Dam Height Storage
(acre-feet) Year Built Drainage Area
(square miles)
Pigeon Pass 36 900 (approx.
293,000 gal) 1958 8.71
Perris 130 2,340 (approx.
42,834,000 gal) 1973 10
65 http://www.water.ca.gov/lakeperris/ Verified November 7, 2016, Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
12.1.1 DAM FAILURE/INUNDATION PROFILE – PREVIOUS
OCCURRENCES
There are no previous occurrences of dam failure/inundation.
12.1.2 DAM FAILURE/INUNDATION PROFILE – PROBABILITY OF
FUTURE EVENTS
The probably rating for this hazard is a 2, which means that there is between a 1% and 10% chance that it will occur within the next year.
12.2 DAM FAILURE/INUNDATION VULNERABILITY –
OVERVIEW/ IMPACT
The severity rating for this hazard is a 2, which means that there is a potential for limited damage, causing injuries and/or illnesses, complete shutdown of critical facilities for more than one week and/or 10% of property is severely damaged.
For information about flooding, see Chapter 6. Dam failure/inundation could cause cascading hazards such flooding, pipeline hazards, transportation, power outages and hazardous materials incidents.
Impact to Population and Structures: The population in the dam inundation areas could be requested to evacuate. Seniors and individuals with access and functional needs may need special assistance to evacuate. An evacuation map (Figure 12-2) shows the nearby population to the inundation area. There could be damage to structures in the inundation areas affected by flood waters.
Impact to Essential Facilities/Historical Sites: Failure of the Perris Dam would only affect a very small area south of Nandina Avenue along the Perris Valley Storm Drain and the Mystic Lake area in the Southeast corner of Moreno Valley.
While two schools, Rancho Verde High School, and El Potrero Elementary School, are not located in the inundation area, they may be impacted by an evacuation. The schools near (not in) the inundation area is shown on the evacuation map (Figure 12-2). No historical sites are within the dam inundation area.
Impact to Infrastructure: An evacuation could impact transportation routes.
Development Trends: Future development will result in an increased demand for flood control and drainage services. Moreno Valley participates in the NFIP as well as the voluntary CRS, which is administered by FEMA. The NFIP program provides federal flood insurance and federally financed loans for property owners in flood prone areas. For more information about the city’s participation in NFIP and CRS, see Chapter 20.4: National Flood Insurance Program. To qualify for Moreno Valley Hazard Mitigation Plan
Revised: December 2022
federal flood insurance, the city must identify flood hazard areas and implement a system of protective controls. In addition, all development is required to comply with Riverside County Flood Control and Water Conservation District requirements for construction of master drainage plan facilities. New development is shown in Appendix C.
12.2. 1 DAM FAILURE/INUNDATION VULNERABILITY – POTENTIAL LOSS
f a dam failure occurred at Perris Dam, the potential loss would be limited to a very small area south of Nandina Avenue along the Perris Valley Storm Drain in the southeast corner of Moreno Valley. See Chapter 6 for loss es related to flooding.
There are no repetitive loss properties.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 12 -2: CITY OF MORENO VALLEY EVACUATION MAP – REVISED SEPTEMBER 6, 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
CHAPTER 1 3: PIPELINE
MORENO VALLEY RATING: SEVERITY = 2 PROBABILITY = 2
13.1 PIPELINE PROFILE – OVERVIEW
Natural gas, oil, water, and sew er are transported via pipeline, mostly by underground pipes in developed and urban areas.
Water: Most of the city’s water is imported via the California Aqueduct from northern and central California. Box Springs Mutual Water Company serves a small portion of the community, while Eastern Municipal Water District (EMWD) has been the primary purveyor of water in Moreno Valley since the early 195066.
EMWD completed a major water suppl y line along Perris Boulevard in 1954 through which water became available in 1955. The existing water companies were responsible for connecting to the main water supply system, including the Edgemont Gardens Mutual Water Company and the Sunnymead Mutual W ater Company. An underground segment of the aqueduct runs from the northwest corner of Moreno Valley to Lake Perris. Water from Lake Perris is pumped to the Mills Filtration Plant in the City of Riverside before it is distributed to Moreno Valley customers.
Natural Gas: The Southern California Gas Company maintains a comprehensive system of distribution and service lines throughout the city. In addition to local lines, two major 30-foot-wide transmission lines cross Moreno Valley. Line number “2001” is loc ated on Cottonwood Avenue and line number “2000” is located on Brodiaea Avenue. Both lines run east-west through the entire city.
There are also 8-inch and 12-inch major distribution supply lines located on Indian Avenue, running north from Brodiaea Ave through Moreno Valley. All of these are considered “high-pressure” lines, meaning that they contain over 60 pounds per square inch (psi).
There is also an aviation fuel line that runs through Moreno Valley, however, this line no longer provides fuel to March Air Reserve Base.
66 https://www.socalgas.com/ Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
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Located in the city, the Moreno Valley Pressure Limiting Station (PLS) is capable of receiving 800 million standard cubic feet per day (MMscfd) of natural gas at 850 pounds per square inch gage ( PSIG) from the Adelanto Compressor Station. The Moreno Valley PLS will allow gas from the new Adelanto to Moreno Pipeline and from the new Moreno to Whitewater Pipeline to flow into any of the existing lines at the Moreno Valley PLS.67
Sewer: Eastern Municipal Water District operates over 356 miles of sewer mains (12” and above) and six sewage lift stations to provide wastewater collection services within Moreno Valley. All wastewater is collected and conveyed to the Moreno Valley Regional Wate r Reclamation Facility located in the southwestern portion of the city and has a capacity to treat 16 million gallons of wastewater per day (mgd) and a capacity to expand to 41 mgd. Sewer services for the southwestern Moreno Valley are provided by the Edgemont Community Services District. The District provides wastewater treatment under contract with the City of Riverside. According to the District, the pipes that transmit sewage to the City of Riverside Water Quality Control Plant are over 50 years old and are in need of repair.
67 https://www.emwd.org/ Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Figure 13-1: City of Moreno Valley Pipeline Map
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
13.1.1 PIPELINE PROFILE – PREVIOUS OCCURRENCES
Moreno Valley and the surrounding area have a history of pipeline ruptures, spillage and vandalism to natural gas and sewer lines. Table 13-1 shows incidents dating from 1991.
TABLE 13 -1 MORENO VALLEY AREA NATURAL GAS AND SEWER
LINE INCIDENTS
Year Description
2008 450 gallons of sewage discharged at 13874 Rockcrest Drive68 2008 1,500 gallons of sewage discharged at 12080 Pigeon Pass69 2008 450 gallons of sewage discharged at 13874 Rockcrest Drive70 2009 2,590 gallons of sewage released at Ironwood and Talbor71 2009 270 gallons of sewage released at Pan Am and Eucalyptus72 2009 7,000 gallons of sewage released at 23650 Hemlock73 2009
Two-inch underground gas line broke on Daimler Street between Margarita Street and Bay Avenue at 2 p.m. Two homes were evacuated. Repairs took three hours.74
68 https://ciwqs.waterboards.ca.gov/ciwqs/readOnly/PublicReportSSOServlet?reportAction=criteria& reportId=sso_overview Retrieved July 2022
69 https://www.caloes.ca.gov/cal-oes-divisions/fire-rescue/hazardous-materials/spill-release- reporting Retrieved July 2022
70 https://www.caloes.ca.gov/cal-oes-divisions/fire-rescue/hazardous-materials/spill-release- reporting Retrieved July 2022
71 https://www.caloes.ca.gov/cal-oes-divisions/fire-rescue/hazardous-materials/spill-release- reporting Retrieved July 2022
72 https://www.caloes.ca.gov/cal-oes-divisions/fire-rescue/hazardous-materials/spill-release- reporting Retrieved July 2022
73 https://www.caloes.ca.gov/cal-oes-divisions/fire-rescue/hazardous-materials/spill-release- reporting Retrieved July 2022
74 https://www.pe.com/2022/06/30/riverside-residents-evacuated-after-crew-hits-gas-line/ Moreno Valley Hazard Mitigation Plan
Revised: December 2022
2011 A four-to-five-inch natural gas main was ruptured on Cactus Avenue east of Moreno Beach Drive at a construction site.75
2011 1,140 gallons of sewage discharged at 12640 Memorial Way76 2011 6,500 gallons of sewage discharged at 12926 Indian Street77 2011 4-inch gas main was struck by a backhoe at Cactus Avenue and Wilmot. 78
2016 Contractor breached 4-inch natural-gas line at Karma Automotive in the 17000 block of Perris Blvd.79
13.1.2 PIPELINE PROFILE – PROBABILITY OF FUTURE EVENTS The probably rating for this hazard is a 2, which means that there is between a 1% and 10% chance that it will occur within the next year.
13.2 PIPELINE VULNERABILITY – OVERVIEW/IMPACT
The severity rating for this hazard is a 2, which means that there is a potential for limited damage, causing injuries and/or illnesses, complete shutdown of critical facilities for more than one week and/or 10% of property is severely damaged.
Pipeline incidents could cause cascading hazards such as flooding, transportation and hazardous materials incidents, civil unrest and pandemic flu or disease.
Impact to Population and Structures: Pipeline incidents could impact the population by causing injuries, illness, or death. People affected may have to be evacuated or asked to shelter in place. Seniors and individuals with access and functional needs may need special assistance to evacuate. People could be
75 https://www.pe.com/2011/08/14/inland-police-and-fire-reports-81411 Retrieved July 2022 76 https://www.caloes.ca.gov/cal-oes-divisions/fire-rescue/hazardous-materials/spill-release- reporting Retrieved July 2022
77 https://www.caloes.ca.gov/cal-oes-divisions/fire-rescue/hazardous-materials/spill-release- reporting Retrieved July 2022
78 https://www.caloes.ca.gov/cal-oes-divisions/fire-rescue/hazardous-materials/spill-release- reporting Retrieved July 2022
79 http://www.pe.com/articles/dug-808104-perris-evacuated.html Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
asked to drink bottled water or to boil their water before drinking if sewage were to contaminate the water. Damage to structures and/or property may occur.
Impact to Essential Facilities/Historical Sites: Essential facilities and/or historical sites could be affected by pipeline incidents. Pipeline incidents could hinder emergency operations due to lack of water or evacuation of essential facilities.
Impact to Infrastructure: A pipeline incident would have a large effect on infrastructure. For instance, a sewer line rupture could contaminate water; a water line rupture could limit emergency responder’s ability to fight fires; and a natural gas rupture could cause fires, evacuations and more.
Development Trends: An increase in development is expected to result in incremental increased demand for infrastructure. Future planned development is expected to be constructed utilizing Uniform Building Codes and design standards. New development is shown in Appendix C.
13.2. 1 PIPELINE VULNERABILITY – POTENTIAL LOSS
Multiple structures throughout the city have the potential to be impacted by pipeline vulnerabilities. For example, if a gas line explosion were to occur at City Hall, the damage to the building and infrastructure could be significant and is estimated at $20 million. Additionally, a mainline event could disrupt gas delivery to and from the Adelanto area. There are no known repetitive loss properties.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
CHAPTER 1 4: TRANSPORTATION
MORENO VALLEY RATING: SEVERITY = 2 PROBABILITY = 2
14.1 TRANSPORTATION PROFILE – OVERVIEW
The City of Moreno Valley has an extensive transportation network that includes state highways, arterials and local streets, public transit, and ne arby rail. For purposes of this plan, transportation emergencies involve highways, arterials, and surface streets, as well as rail and air.
Highways and Arterials - SR-60 is a major regional east-west highway linking Moreno Valley to both neighboring and outlying communities. Additional regional east-west travel is provided by Box Springs Road/Ironwood Avenue, Sunnymead Boulevard and Alessandro Boulevard, all of which are maintained by the city.
Sunnymead Boulevard serves as the traditional commercial corridor of Moreno Valley. Alessandro Boulevard serves as a major commercial and industrial corridor at its westerly end. Other major east-west routes within the city include Eucalyptus Avenue; Cottonwood Avenue; and Cactus Avenue.
I-215 is i mmediately to the west of the city and is the primary regional route for north-south travel linking Moreno Valley to both neighboring and outlying communities. Additional regional north -south routes include Perris Boulevard, Heacock Street, Redlands Boulevard , and Gilman Springs Road. Other north - south access is provided by Moreno Beach Drive and Pigeon Pass Road/Frederick Street.
Rail - The nearest railway is the Burlington Northern Santa Fe railway which runs parallel to I-215. A major train derailment could impact the City of Moreno Valley if the crash involved a hazardous materials spill.
Air - There is an airfield located southwest of the city limits. The airfield is operated by two entities: March Air Reserve Base and the March Inland Port Airport Authority. The land at each end of the runway is subject to significant danger of aircraft accidents during takeoff and landing, or by collision. The land below the landing approach is designated as the clear zone and is located at the northeast corner of Heacock Street and Oleander Avenue in the city.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Air crash zones are mapped into various categories: areas on or adjacent to the runway; areas within the areas within the clear zone; Accident Potential Zone (APZ) I; and Accident Potential Zone (APZ) II. The risk is greatest immediately under the takeoff and landing zone located at either end of the runway(s). The accident potential within the clear zone, which extends 3,000 feet from each end of the runway, is considered to be of such high risk that few uses are acceptable.
A small area at the extreme southwest corner of the city is within the clear zone.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 14 -1: CITY OF MORENO VALLEY TRANSPORTATION MAP
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 14 -1.1: CITY OF MORENO VALLEY AIR CRASH HAZARD AREA MAP
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
14.1.1 TRANSPORTATION PROFILE – PREVIOUS OCCURRENCES
TABLE 1 4-1: MORENO VALLEY TRANSPORTATION HISTORY OF
INCIDENTS
Year Description
1998
Union Pacific train derailment occurred with 4,000 gallons of hazardous fuel near Moreno Valley in San Timoteo Canyon. Damage costs were estimated at $1.3 million.80
1999 Amateur built airplane crashes in a parking lot one mile from March Air Reserve Base.81
2003
18-wheeler tanker drives off the SR-60 overpass at Perris Boulevard.82 Tanker truck explodes shortly after impact and there was a hazardous material spill.
2003 Train derailment in San Timoteo Canyon scatters 22 rail cars and three locomotives from two trains along the tracks.83
2005 Moreno Valley Fire Department fire engine rolls off eastbound Interstate 10 at SR-60 during severe rainstorm.84
2006 Nine engines derail in San Timoteo Canyon it to be closed between Alessandro Road and Redlands Boulevard. 85
2010 Private plane runs out of fuel and crash lands in Moreno Valley at Cactus Avenue and Redlands Boulevard.86
80 Press Enterprise, 1998
81 https://planecrashmap.com/plane/ca/N3415M/ Retrieved July 2022 82 Press Enterprise Rib plunges off overpass January 8, 2003 83 https://www.latimes.com/archives/la-xpm-2003-sep-26-me-sbriefs26.2-story.html Retrieved July 2022
84 https://www.firehouse.com/lodds/news/10506325/riverside-county-calif-firefighter-killed-in- freeway-rollover Retrieved July 2022
85 https://www.trainorders.com/discussion/read.php?1,1228276 Retrieved July 2022 86 https://www.sbsun.com/2010/12/13/plane-in-nov-21-crash-that-killed-3-south-bay-men-ran-out- of-fuel/ Retrieved July 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
2010 Plane crashes near Lake Perris, killing the pilot.87 2011
18-wheeler truck turned on its side on eastbound SR-60 at Theodore due to the truck being driven too fast for the conditions. Driver was killed.
2011 18-wheeler semi-truck collides with RV on eastbound SR-60 at Perris Boulevard. 40 gallons of diesel fuel spill. 88
2015
Construction equipment on a flatbed truck struck the westbound SR-60 overpass at Theodore Street. Pieces of the overpass fell into westbound lanes, striking some vehicles.89
2019
An F-16 with live ordinance on board crashed on the border of Moreno Valley and Riverside in the unincorporated area of Riverside County.
No fatalities occurred. 90
14.1.2 TRANSPORTATION PROFILE – PROBABILITY OF FUTURE EVENTS
The probably rating for this hazard is a 2, which means that there is between a 1% and 10% chance that it will occur within the next year.
14.2 TRANSPORTATION VULNERABILITY – OVERVIEW/IMPACT The severity rating for this hazard is a 2, which means that there is a potential for limited damage, causing injuries and/or illnesses, complete shutdown of critical facilities for more than one week and/or 10% of property is severely damaged Impact to Population and Structures: Highway, arterial roads, and streets as well as air and/or rail incidents could cause severe injuries and/or deaths. They could also cause burns and/or illness due to exposure to fires and/or potential hazardous materials on board. Structures could be damaged or could be used for sheltering.
87 https://www.nbclosangeles.com/news/local/pilot-killed-in-plane-crash-near-moreno- valley/1865440/ Retrieved July 2022
88 https://kesq.com/news/2011/02/11/major-crash-on-highway-60-sends-two-to-hospital/ Retrieved July 2022
89 http://www.pe.com/articles/bridge-759303-westbound-struck.html Retrieved October 31, 2016 90 https://www.desertsun.com/story/news/nation/2019/05/16/f-16-fighter-jet-crashes-march-air- reserve-base-california/3700934002/ Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Impact to Essential Facilities/Historical Sites: Essential facilities could be damaged or impacted by cascading hazards such as power outages, pipeline ruptures or hazardous materials incidents from transportation hazards.
Impact to Infrastructure: Infrastructure could be impacted by cascading hazards such as power outages, pipeline ruptures or hazardous materials incidents from transportation hazards.
Development Trends: Development is expected to increase demand on transportation infrastructure. New residential developments in the eastern portion of the city will require the installation of additional infrastructure such as new roadways, water systems, and sewage disposal to serve these areas.
Future development will comply with adopted land use standards, policies, and ordinances and will be compatible with land uses in surrounding areas. For air hazards, only open space uses are appropriate within the clear zone. New development is shown in Appendix C.
14.2. 1 TRANSPORTATION VULNERABILITY – POTENTIAL LOSS Air: There are 3 historical sites valued at $81,170 and 27 commercial businesses valued at $42,134,023 located within the air crash zone. Data is based on the structure value received from Riverside County Assessor (October 2016). No contents were valued.
Due to the limitation of data related to rail and highway losses within Moreno Valley, it is not possible to analyze the potential loss. There are no known repetitive loss properties.
CHAPTER 15: POWER OUTAGE
MORENO VALLEY RATING: SEVERITY = 3 PROBABILITY = 4
15.1 POWER OUTAGE PROFILE – OVERVIEW
A power failure can range in magnitude and impact from a relatively modest power outage to a catastrophic regional blackout. Power outages may affect a specific area of the City of Moreno Valley or the entire city.
15.1.1 POWER OUTAGE PROFILE – PREVIOUS OCCURRENCES
The City of Moreno Valley has been affected by power outages in the past for various reasons, such as severe winds, storm s and damaged power equipment Moreno Valley Hazard Mitigation Plan
Revised: December 2022
and equipment failures. Table 15-1 shows a history of power outages affecting the City of Moreno Valley.
Table 15-1: History of Power Outages in Moreno Valley
Year Description
1998 Power outage affects Moreno Valley causing Canyon Springs High School to delay basketball games. 91
2003 High winds cause power outage in Moreno Valley.92
2005
Power outage for the Lasselle circuit occurs due to a storm. 466 Moreno Valley Utility customers are without power for 2 hours, 5 minutes.93
2006 1,175 residents are without power for 2 hours when Moreno Valley Utility’s Lasselle Circuit goes down. 94
2006 1,245 residents are without power for 3 ½ hours when Moreno Valley Utility’s Cactus circuit goes down. 95
2006 950 residents are without power for 1 hour 5 minutes when Moreno Valley Utility’s Globe circuit goes down. 96
2006 1,175 residents are without power for 5 hours, 50 minutes when Moreno Valley Utility’s Lasselle circuit goes down. 97
2006 1,245 residents are without power for 3 ½ hours when Moreno Valley Utility’s Cactus circuit goes down. 98
91 http://www.socalhoops.tierranet.com/archive/prepnotes/Feb98/riv211c.htm Retrieved September 27, 2011
92 MTV-3 provided photographs of wind event that occurred in 2003 showing downed power lines 93 Information provided by Moreno Valley Utility on September 27, 2011 94 Information provided by Moreno Valley Utility on September 27, 2011 95 Information provided by Moreno Valley Utility on September 27, 2011 96 Information provided by Moreno Valley Utility on September 27, 2011 97 Information provided by Moreno Valley Utility on September 27, 2011 98 Information provided by Moreno Valley Utility on September 27, 2011 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
2006 Power outage due to a prolonged heat wave affects Moreno Valley.99
2007
Planned power outage by Southern California affects 800 residents in the area between Moreno Beach Drive and Redlands Boulevard and extends from Eucalyptus and Dracaea avenues on the north, to Cottonwood and Bay avenues on the south.100
2009
Southern California Edison power outage affects 268,000 residents in Riverside County for 10 minutes, including residents in Moreno Valley.101
2010 Southern California Edison power outage affects residents in Riverside County, including Moreno Valley.102
2010 3,906 Moreno Valley Utility customers lose power for 58 minutes.103 2010 890 Moreno Valley Utility customers lose power for 1 hour 6 minutes.104
2010 High winds caused power outages statewide, 4,000 residents affected in Moreno Valley.105
2010 200 Moreno Valley Utility customers lose power for 14 hours 37 minutes when a vehicle collides with a capacitor bank.106 2011 Massive power outage affecting electric customers in western Arizona, Southern California, and northern Baja, Mexico has an
99 http://www.edison.com/pressroom/pr.asp?bu=sce&year=0&id=6317 Retrieved September 27, 2011
100 http://www.pe.com/localnews/morenovalley/stories/PE_News_Local_R_rpower19.5eda61.html Retrieved September 27, 2011
101 http://weathercurrents.com/morenovalley/NewsItemDisplay.do?Id=548 Retrieved September 27, 2011
102 http://www.nbclosangeles.com/news/local/Large-Power-Outage-in-Riverside-County.html Retrieved September 27, 2011
103 Information provided by Moreno Valley Utility on September 27, 2011 104 Information provided by Moreno Valley Utility on September 27, 2011 105 http://www.fema.gov/emergency/reports/2010/nat012010.shtm September 27, 2011 106 Information provided by Moreno Valley Utility on September 27, 2011 Moreno Valley Hazard Mitigation Plan
Revised: December 2022
impact on Moreno Valley as residents from those areas travel to cities with power.107
2011
Blackout continues to affect 1,808 homes and businesses in Moreno Valley where officials are uncertain of the cause and when repairs will be completed.108
2012 Power to more than 2,500 customers was cut after downed power lines draped over roofs, fences and into pools in Moreno Valley.109 2013 Equipment failure caused power outage for 1,115 Moreno Valley Utility customers for 73 minutes.110
2014 5,597 Moreno Valley Utility customers without power for 3 minutes.111
2015 All-day blackout affected 369 Moreno Valley homes, businesses112 2016 Moreno Valley blackout affected 10,000 homes113
15.1.2 POWER OUTAGE PROFILE – PROBABILITY OF FUTURE
EVENTS
The probably rating for this hazard is a 4, which means that it is highly likely and there is a near 100% chance that it will occur within the next year.
15.2 POWER OUTAGE VULNERABILITY – OVERVIEW/IMPACT
The severity rating for this hazard is a 3, which means that there is a potential for critical damage, causing injuries and/or illnesses resulting in permanent disability,
107 http://en.wikipedia.org/wiki/2011_Southwestern_United_States_blackout Retrieved September 27, 2011
108 http://www.pe.com/articles/area-628481-began-lasselle.html Retrieved November 3, 2016 109 http://www.nbclosangeles.com/news/local/Moreno-Valley-Downed-Power-Lines- 146915005.html Retrieved November 3, 2016
110 Information provided by Moreno Valley Utility on November 3, 2016 111 Information provided by Moreno Valley Utility on November 3, 2016 112 http://www.pe.com/articles/homes-769043-blackout-moreno.html Retrieved November 3, 2016 113 http://www.pe.com/articles/website-818261-nov-california.html Retrieved November 15, 2016 Moreno Valley Hazard Mitigation Plan
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complete shutdown of critical facilities for two weeks and/or 25% to 49% of property is severely damaged. Power outages could cause cascading hazards such as transportation incidents, civil unrest, and disease.
Loss of electric power could have a major impact on the City of Moreno Valley and its citizens.
Impact to Population and Structures: The impact to the population from loss of power may include disruption of power to critical medical devices. Medical conditions could be affected by an increase of temperatures due to loss of the use of air conditioners or fans. Loss of lighting and the inability to keep perishables refrigerated would also impact the population. Structures would be impacted due to loss of power to elevators, lighting, air conditioning, communications and other systems that may not operate without a generator or alternate power sources.
Impact to Essential Facilities/Historical Sites: Essential facilities would be impacted due to loss of power to elevators, lighting, air conditioning, communications and other systems that may not operate without a generator or alternate power sources. A power outage could impact emergency operations.
Historical sites within Moreno Valley would be impacted the same as structures listed above.
Impact to Infrastructure: Loss of power would severely impact infrastructure. It would affect traffic signals, which would increase in the probabilities of traffic collisions, and various types of communication infrastructure which could fail after prolonged power outage.
Development Trends: New development will result in an additional demand for electricity; however, General Plan objectives and associated policies encourage the efficient use of energy, including passive cooling with landscaping and the use of solar power. New development is shown in Appendix C.
15.2. 1 POWER OUTAGE VULNERABILITY – POTENT IAL LOSS
If a power outage were to occur citywide for eight hours, the potential would be limited to loss of perishables, cost of fuel to run generators, potential for damage to vehicles from traffic accidents and loss of income to commercial businesses.
Potential losses from days-long or longer outages could escalate exponentially in terms of financial and human costs as powered medical infrastructure fails. There are no repetitive loss properties.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
CHAPTER 1 6: HAZARDOUS MATERIALS ACCIDENT
MORENO VALLEY RATING: SEVERITY = 3 PROBABILITY = 3
16.1 HAZARDOUS MATERIALS PROFILE – OVERVIEW
Hazardous materials are any substance or combination of substances that may pose a risk to human health and safety or to the environment. Hazardous materials include toxic, corrosive, infectious, flammable, explosive and radioactive materials.
Businesses, public or private institutio ns and private households all use or generate hazardous materials to some extent. Some of the larger businesses use certain classes of hazardous materials that require accidental release scenario modeling in order to plan, prepare and respond to the worst-case scenario.
Hazardous materials are routinely manufactured, used, stored, or transported in nearly every community and could therefore occur throughout the City of Moreno Valley. The probability of hazardous materials spills is accentuated with the c ity being bordered by two major transportation corridors and that the region is susceptible to earthquakes. Loss of human and wildlife, as well as significant effects on the environment and substantial cleanup costs could have a large impact on the city.
A hazardous chemical release in the City of Moreno Valley would most likely occur either by transportation of chemicals, the use of chemicals at a business, or illegal dumping of chemical waste.
City of Moreno Valley Records indicate there is c urrently one business located in the city which exceeds the Federal and California threshold for storing chemicals and is required to file both Federal and California response plans. According to the County of Riverside Department of Environmental Health, t he City of Moreno Valley has 38 sites permitted as underground or above ground storage tank facilities; 208 sites permitted as hazardous waste generator facilities; and 314 sites permitted as hazardous chemical disclosure facilities 114 . Figure 16 -1 shows locations of hazardous material sites throughout Moreno Valley.
114 Data provided electronically November 2, 2016 by County of Riverside Department of Environmental Health at city’s Request
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 16 -1: CITY OF MORENO VALLEY HAZARDOUS MATERIALS SITE LOCATIONS MAP – REVISED SEPT. 26, 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
FIGURE 16 -1: PART 2: CITY OF MORENO VALLEY HAZARDOUS MATERIALS SITE LOCATIONS MAP – REV. SEPT. 26, 2022
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
16.1.1 HAZARDOUS MATERIALS PROFILE – PREVIOUS OCCURRENCES The following table describes hazardous materials incidents that have impacted Moreno Valley and surrounding area.
TABLE 1 6-1: MORENO VALLEY HAZARDOUS MATERIALS INCIDENT
HISTORY
Year Description
2008 Unknown amount of digester gas released at 17140 Kitching Street by Eastern Municipal Water District115
2008 30,000 cubic feet of methane gas released due to power outage at 17140 Kitching Street116
2008 70 gallons mineral oil at 21272 O'Casey Ct. due to an equipment failure of a pad mount transformer.117
2008 70 gallons mineral oil at 25944 Andre Ct due to an equipment failure of a pad mount transformer. 118
2009 Westbound SR-60 just east of mile marker 24 in Moreno Valley is an 80-gallon diesel fuel spill.119
2010
46,885 cubic feet of digester gas was released at the EMWD facility located at 17140 Kitching Street. Attributed to a power loss to the pressure gauge that controls flare offs.120
115 http://www.CalOES.ca.gov/HazardousMaterials/Documents/HazMat%20Spill%20Reports%202008.xls Retrieved September 26, 2011
116 http://www.CalOES.ca.gov/HazardousMaterials/Documents/HazMat%20Spill%20Reports%202008.xls Retrieved September 26, 2011
117 http://www.CalOES.ca.gov/HazardousMaterials/Documents/HazMat%20Spill%20Reports%202008.xls Retrieved September 26, 2011
118 http://www.CalOES.ca.gov/HazardousMaterials/Documents/HazMat%20Spill%20Reports%202008.xls Retrieved September 26, 2011
119 http://www.CalOES.ca.gov/HazardousMaterials/Documents/Hazmat%20Spill%20Reports%202009.xls Retrieved September 26, 2011
120 http://www.CalOES.ca.gov/HazardousMaterials/Documents/Hazmat%20Spill%20Reports%202010.xls Retrieved September 26, 2011
Moreno Valley Hazard Mitigation Plan
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2011
An 18-wheeler semi-truck caught fire on eastbound SR-60 at Frederick Street.
The fuel tank ruptured which caused the fire as well as a freeway closure for several hours. 121
2011 Westbound SR-60 is closed from Beaumont to Moreno Valley due to a 100- gallon fuel spill.122
2011 68 gallons of Mineral Oil spilled by Southern California Edison at 23343 Hemlock123
2011 500 gallons of Ferric Chloride spilled at 17140 Kitching Street by EMWD. Spill was contained by their containment area. 124
2014 An unknown chemical leak – in gas form – sent a firefighter and three police officers to hospital and closed down a high school in Riverside.125
16.1.2 HAZARDOUS MATERIALS PROFILE – PROBABILITY OF FUTURE EVENTS
The probably rating for this hazard is a 3, which means that there is a 10% to 100% chance that it will occur within the next year. From hazardous materials disclosures of existing businesses on file, County of Riverside Department of Environmental Health has identified 560 businesses with varying quantities, forms, and types of hazardous materials on site both interior and exterior.
16.2 HAZARDOUS MATERIALS VULNERABILITY – OVERVIEW/IMPACT The severity rating for this hazard is a 3, which means that there is a potential for critical damage, causing injuries and/or illnesses resulting in permanent disability, complete shutdown of critical facilities for two weeks and/or 25% to 49% of property is severely damaged.
121 http://www.swrnn.com/2011/01/26/highway-60-in-moreno-valley-closed-tuesday-night-by-crash-and-fire/ Retrieved September 26, 2011
122 http://www.kpsplocal2.com/news/local/story/100-Gallon-Fuel-Spill-Prompts-Badlands- Freeway/X7WvEkjOW0-5ghMaXD5h7g.cspx?rss=2276 Retrieved September 25, 2011 123 http://www.CalOES.ca.gov/HazardousMaterials/Documents/HazMat%20Spill%20Reports%202011.xls Retrieved September 26, 2011
124 http://www.CalOES.ca.gov/HazardousMaterials/Documents/HazMat%20Spill%20Reports%202011.xls Retrieved September 26, 2011
125 http://www.nbclosangeles.com/news/local/Unknown-Gas-Leak-Prompts-Evacuations-in-Areas-of- Riverside-280540172.html Retrieved November 8, 2016
Moreno Valley Hazard Mitigation Plan
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Impact to Population and Structures: Severe or prolonged exposure to hazardous materials is expected to cause injuries and/or deaths. In addition, people may be evacuated or asked to shelter in place during a hazardous materials incident. Seniors and individuals with access and functional needs may need special assistance to evacuate.
People may also be required to be decontaminated to remove the hazard from their structures, property, and clothing. There may be economic impacts as well due to cleanup and removal of hazardous materials.
Impact to Essential Facilities/Historical Sites: Exposure to hazardous materials could impact essential facilities and historical sites. Essential facilities may be closed for decontamination, thus causing an interruption to services.
Impact to Infrastructure: Runoff from hazardous materials has a potential to affect the waterways and drainage systems, as toxic substances may leach into local groundwater supplies. Also, transportation systems could be impacted due to decontamination and increased congestion from evacuation efforts.
Development Trends: Future development of buildings, residential structures, critical facilities, and infrastructure are expected to be constructed according to the most recent Uniform Building Codes and design standards and are expected to carefully consider for adding to vulnerability from hazardous materials. New development is shown in Appendix C.
16.2. 1 HAZARDOUS MATERIALS VULNERABILITY – POTENTIAL LOS S Analysis of the one business located in Moreno Valley that exceeds the Federal and California threshold for storing chemicals shows that a worst-case scenario could have a significant environmental and financial impact to the City of Moreno Valley . Due to the limitation of data available and the range of potential impacts, it is not possible to calculate the potential loss. There are no known repetitive loss properties.
CHAPTER 17: TERRORIST ATTACK
MORENO VALLEY RATING: SEVERITY = 4 PROBABILITY = 2
17.1 TERRORIST ATTACK PROFILE – OVERVIEW
Terrorism, as defined by the FBI , is "the unlawful use of force against persons or property to intimidate or coerce a government, the civilian population or any segment thereof, in the Moreno Valley Hazard Mitigation Plan
Revised: December 2022
furtherance of political or social objectives."126 The act of terrorism could involve chemicals, biological, radiological, or nuclear agents, explosives, or cyber-terrorism.
A specific location for a terrorist attack is not known; however, some of the most likely targets could be Moreno Valley locations including March Air Reserve Base (MARB); Riverside University Health System (RUHS); Kaiser Hospital; and the San Diego Gas & Electric (SDG&E) Moreno natural gas compressor station. These are some considered high -profile targets but acts of terrorism could occur anywhere within the City of Moreno Valley and has the potential to impact a portion or all of the City of Moreno Valley.
17.1.1 TERRORIST ATTACK PROFILE – PREVIOUS OCCURRENCES The City of Moreno Valley has not experienced a major terrorism attack; however, many parts of our Nation can’t say the same. From mass shootings to cars being driven into crowed streets, terrorism is something that is beginning to plaque too many communities.
Terrorism attacks can take many forms, from in cendiary devices to biological weapons to weapons of mass destruction. On September 11, 2001, the United States of America was attacked by terrorists when four airplanes were hijacked by members of Al -Qaeda. Two of these planes were crashed into the World Trade Center, one into the Pentagon, and the fourth never reached its destination as the passengers retook control of the airplane and crashed it into a field in Pennsylvania. These major terrorist attacks were followed one week later by the mailing of anthrax to two United States Senators and several news media offices, killing five people and infecting 17 others.127
Shortly after the 2011 attacks, t he City of Moreno Valley experienced four incidents of potential terror attacks in the form of unmarked whit e powder being left at area school campuses. These fours incidents occurred in October 2001, and all four incidents involved white powder being left on campus. After testing, all white powders were later determined to be non-hazardous.
Although not occurring in the City of Moreno Valley, the December 2, 2015 terrorist attack at the Inland Regional Center (IRC) did occur in the adjacent city of San Bernardino, which is approximately a 10-mile drive from the City of Moreno Valley. The IRC is a regional medical center whose primary mission is to assist people with developmental disabilities.
On this day, a mass shooting and attempted bombing incident occurred at the IRC located in the City of San Bernardino. In this attack, two suspects shot the victim-employees during
126 http://www.nij.gov/topics/crime/terrorism/pages/welcome.aspx Retrieved November 3, 2016 127 http://en.wikipedia.org/wiki/2001_anthrax_attacks
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a training meeting at the IRC. As a result of the incident, 14 victims were killed, and another 22 were wounded. A brief encounter with police also resulted in the deaths of the two suspects. Preliminary reports about the incident indicate that the suspects may have been on an Islamic jihadist mission against America.
TABLE 1 7-1: HISTORY OF MORENO VALLEY TERRORIST ATTACK
INCIDENTS OF CONCERN
Year Description
2001 White powdery substance is found at Canyon Springs High School and was treated as an anthrax incident.128
2001 White powdery substance is discovered at Sunnymead Middle School.
Substance was treated as if it was anthrax.129
2001
White powdery substance located next to a cargo container on Moreno Valley Unified School District property. Incident was initially responded to as an anthrax incident until it was determined that the white powder was chalk for marking athletic fields.130
2001 White powdery substance found at Bayside Elementary School and treated as an anthrax incident.131
2004
On the five-year anniversary of the Columbine High School attacks, a backpack with a bomb threat note is located at Canyon Springs High School.
Riverside Sheriff’s Department Hazardous Device Team detonates the backpack. Upon investigation, no parts to a bomb device were located after the backpack was detonated.
On the same day, another bomb threat was received for March Mountain High School, but no device was located. 132
2004 The city receives a phone call stating that there is a bomb located inside City Hall. The building is evacuated while the Riverside Sheriff’s Department
128 Notes from meeting with Moreno Valley Unified School District 129 http://en.wikipedia.org/wiki/2001_anthrax_attacks
130 http://en.wikipedia.org/wiki/2001_anthrax_attacks
131 http://en.wikipedia.org/wiki/2001_anthrax_attacks
132 http://www.pe.com/localnews/morenovalley/stories/PE_News_Local_bomb21.f0b0.html Retrieved September 27, 2011
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conducts a search of the facility for any potential hazardous device. No device is located.133
2010
A bomb threat note was found at Canyon Springs High School causing the campus to be evacuated while the Riverside Sheriff’s Department searched for the device. No bomb was located.134
TABLE 1 7-1: HISTORY OF MORENO VALLEY TERRORIST ATTAC K INCIDENTS OF CONCERN (CONT’D)
Year Description
2015
A mass shooting incident occurred in the neighboring City of San Bernardino. Two suspects shot and wounded 22 people, and killed another 14, before being killed during the incident. Preliminary reports after the incident indicate the suspects may have been committing Islamic Jihad against America.
2016
A cardboard box filled with assorted harmless items prompted a bomb scare that closed off a major intersection. It was determined there was nothing dangerous inside the box and the area was reopened to traffic.135
17.1.2 TERRORIST ATTACK PROFILE – PROBABILITY OF FUTURE EVENTS The probably rating for this hazard is a 2, which means that there is between a 1% and 10% chance that it will occur within the next year.
17.2 TERRORIST ATTACK VULNERABILITY – OVERVIEW/IMPACT The severity rating for this hazard is a 4, which means that there is a potential for catastrophic damage, causing multiple deaths, complete shutdown of critical facilities for 30 days or more and more than 50% of property has a potential to be damaged.
133 Meeting notes on debriefing for the evacuation of City Hall due to a bomb threat 134 http://www.instantriverside.com/2010/04/canyon-springs-high-school-bomb-threat/ Retrieved September 27, 2011
135 http://www.pe.com/articles/bomb-805907-box-moreno.html Retrieved November 3, 2016 Moreno Valley Hazard Mitigation Plan
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Impact to Population and Structures: A terrorist attack is expected to cause multiple deaths and injuries and extensive damage to structures. The amount of expected injuries and deaths is dependent on the type of terrorist event.
Impact to Essential Facilities/Historical Sites: Government buildings, schools, hospitals, critical infrastructure, special events and historical sites are especially vulnerable to terrorist attacks. The impact could be devastating, and could severely interrupt emergency response efforts, as well as government services.
Impact to Infrastructure: Depending on the type of attack, it is expected that a terrorist attack would have a severe impact on infrastructure. Depending on the type of incident, this could involve loss of electricity, water, sewer, and communications.
Development Trends: Future development of buildings, structures, critical facilities, and infrastructure could be impacted by a terrorist attack, depending on the location of the incident. The environmental impact of biological, chemical and/or radiological contamination may need to be considered prior to future development. New development is shown in Appendix C.
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17.2.1 TERRORIST ATTACK VULNERABILITY – POTENTIAL LOSS If a terrorist attack were to occur at City Hall, the structural and infrastructure damage could be approximately $25 million. There are no repetitive loss properties.
MORENO VALLEY RATING: SEVERITY = 2 PROBABILITY = 2
18.1 CIVIL UNREST PROFILE – OVERVIEW
Civil unrest typically begins as non -violent gatherings and progresses to violence. These types of incidents have a potential to escalate into destruction of property, purposefully set fires, and injury to others. Often times, injuries are restricted to po lice and individuals observed to be breaking the law. Out of control crowds have been known to throw bottles, rocks, and other projectiles. Civil unrest incidents could happen in any location, but they typically occur near government buildings.
18.1.1 CIVIL UNREST PROFILE – PREVIOUS OCCURRENCES
The City of Moreno Valley does not have a history of violent civil unrest. Fortunately, the civil demonstrations included were non-violent in nature.
TABLE 1 8-1: HISTORY OF MORENO VALLEY CIVIL DEMONSTRATIONS Year Description
2001
Protestors marched in front of the Moreno Valley police station regarding the shooting of an African American male by a Riverside County Sheriff Deputy.136 This was a non-violent protest. 2006
1,000 demonstrators gathered at Moreno Valley Community Park to demonstrate against the passage of House of Representatives Bill 4377 (H.R. 4377), a Federal law aimed at illegal immigration.
Protestors then marched to City Hall and conducted a non-violent protest regarding the passage of this Federal legislation.137 2013
Hundreds of protestors gathered at Moreno Valley City Hall to demonstrate against city council member recalls and major warehousing projects. Protestors were peaceful and conducted a non-violent protest.
136 http://la.indymedia.org/news/2001/03/5706_comment.php?theme=2 Retrieved September 26, 2011 137 http://www.pe.com/localnews/morenovalley/stories/PE_News_Local_M_mprotest02.7f76ec.html Retrieved September 26, 2011
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2016
200 protestors gathered at Sunnymead Park to demonstrate against the shooting of African Americans throughout the nation. Protestors then peacefully marched to the Moreno Valley Mall and conducted a non-violent protest.
18.1.2 CIVIL UNREST PROFILE – PROBABILITY OF FUTURE EVENTS The probably rating for this hazard is a 2, which means that there is between a 1% and 10% chance that it will occur within the next year.
18.2 CIVIL UNREST VULNERABILITY – OVERVIEW/IMPACT The severity rating for this hazard is a 2, which means that there is a potential for limited damage, causing injuries and/or illnesses, complete shutdown of critical facilities for more than one week and/or 10% of property is severely damaged.
Impact to Population and Structures: Injuries could occur to protestors or demonstrators and are often a result of resisting arrest and exposure to tear gas or mace but could also be due to protestors throwing bottles or other projectiles. Impacts to buildings and structures could involve physical damage including smashed windows; building destruction; and fire damage.
Impact to Essential Facilities/Historical Sites: Protestors could damage facilities and/or historical sites during civil unrest. Impact to essential facilities and/or historical sites could involve smashed windows, building destruction and fire damage.
Impact to Infrastructure: Protestors could damage facilities and/or historical sites during civil unrest. The impact could involve loss of electricity, water, sewer, and communications.
Development Trends: Future development of buildings, structures, critical facilities, and infrastructure would not be impacted by civil unrest. New development is shown in Appendix C.
18.2. 1 CIVIL UNREST VULNERABILITY – POTENTIAL LOSS
If civil unrest were to occur at the Public Safety Building involving, perhaps, fire, the potential loss could be $13.5 million. There are no repetitive loss properties.
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CHAPTER 19: PANDEMIC FLU/DISEASE
MORENO VALLEY RATING: SEVERITY = 3 PROBABILITY = 2
19.1 PANDEMIC FLU/DISEASE PROFILE – OVERVIEW
A pandemic is an epidemic of world-wide proportions. Throughout history there have been a number of pandemics such as smallpox, tuberculosis, measles, and polio. In recent years, pandemics include HIV/AIDS, Influenza, and Pertussis (whooping cough), and the ongoing Coronavirus (Covid-19) which began in February 2020 and continues today.
Significant public health emergencies have been affecting populations for centuries. Some of the notable pandemics in history are:
14th century , Black Death – The Black Death was a medieval pandemic that killed approximately 25 million people in Europe. This pandemic lingered for centuries.138
1918–1919, Spanish Flu – The Spanish Flu caused an estimate d 50 million deaths worldwide with nearly 675,000 of those deaths in the United States.139
1968, Influenza (H3N2) – An estimated 1 million deaths occurred worldwide with 100,000 in the United States. Most excessive deaths were in people 65 years or older.140
2005-2015 (at its peak), HIV/AIDS – HIV/AIDS has killed more than 36 million people since 1981. From 2005-2012, the annual global deaths from HIV/AIDS dropped from 2.2 million to 1.6 million.141
2020-Current, Covid-19 – Covid-19 has killed over 1 million people in the United States and nearly 6.5 million worldwide. With new variants emerging every couple of months, this pandemic could continue for years to come.
138 https://www.nationalgeographic.com/science/article/the-plague Retrieved July 2022 139 https://www.cdc.gov/flu/pandemic-resources/reconstruction-1918-virus.html Retrieved July 2022 140 http://www.cdc.gov/flu/pandemic-resources/basics/past-pandemics.html Retrieved July 2022 141 https://www.mphonline.org/worst-pandemics-in-history/ Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
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19.1.1 PANDEMIC FLU/DISEASE PROFILE – PREVIOUS OCCURRENCES In 2022 Riverside County began and continues to experience significant cases of Respiratory Syncytial Virus, or RSV, which typically causes mild, cold-like symptoms, but can be particularly serious for infants and older adults. It is the most common cause of bronchiolitis (inflammation of the small airways in the lung) and pneumonia (infection of the lungs) in children younger than 1 year old in the United States. Symptoms of RSV can include shallow or difficulty breathing, cough, poor appetite, listlessness or irritability and it can cause bronchiolitis (inflammation of the small airways in the lung) and pneumonia (infection of the lungs). Public Health officials continue ongoing public messaging campaigns about the dangers of this and other respiratory illnesses and how to prevent them. 142 The City of Moreno Valley continues to monitor case numbers affecting the population in the city and throughout the County.
In late February 2020, the City of Moreno Valley, in cooperation with the County of Riverside, was notified that a plane would be landing at March Air Reserve Base (MARB) carrying U.S. residents who had been in Wuhan, China where the original Covid-19 infections were detected. Upon repatriation of the flight, County Health officials had to determine the best means of protecting the public . Officials determined that quarantine mandates were appropriate for these and others returning to the County to prevent infection spread .
Unfortunately, others unknowing they were virus carriers, began to spread the virus all over the U.S. as they returned from abroad. Over the next several, federal, state, and local health officials navigated rapidly increasing infection and death rates worldwide. Mask mandates, closures of businesses, schools, and anything else considered non-essential were enforced, and in some cases, continue. Social distancing rules of maintaining at least 6 feet distance from anyone around you were implemented. In addition to the worldwide pandemic, some countries, including the United States, simultaneously began to struggle with supply chain shortages of essential items such as baby formula, among other things. Many of the lasting supply chain issues are still present today. The State of California and the City will end its COVID-19 emergency proclamations and emergency operation center activations, however, for many, the threat of other variants remains a constant143.
In 2009, Moreno Valley was impacted by the H1N 1 influenza epidemic in which California proclaimed a State of Emergency (April 28, 2009). From April 23, 2009, until August 28, 2010, the California Department of Public Health reported 116 severe cases, 108 intensive care unit cases, and 41 deaths in Riverside County144. The public health emergency required
142 https://www.ruhealth.org/public-health/respiratory-viruses#rsv Retrieved February 2023 143 https://www.cdph.ca.gov/ Retrieved July 2022
144 https://www.cdph.ca.gov/ Retrieved July 2022
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the activation of the Moreno Val ley Emergency Operations Center to track the epidemic; provide daily statistics to Riverside County Public Health on the status of our employees; to participate in regular c onference calls ; and to outreach information about appropriate precautions as well as provide information about vaccination . In today’s news, you often hear officials recalling this epidemic and reminding everyone that this and similar viruses can easily become problematic.
Pertussis (also known as whooping cough) is a highly contagious bacterial disease. People with pertussis experience severe coughing attacks that can last for months. During 2010, over 9,000 cases of pertussis were reported in California, including 10 infant deaths. Table 19-1 identifies disease outbreaks, including Influenza 145 and Pertussis, 146 in Riverside County.
TABLE 19-1: DISEASE OUTBREAKS IN THE MORENO VALLEY AREA Year Disease Number of Cases
2009-2010 Influenza (H1N1) 265
2010 Pertussis 461
2010-2011 Influenza 11
2011 Pertussis 176
2011-2012 Influenza 16
2012 Pertussis 31
2012-2013 Influenza 19
2013-2014 Influenza 66
2014-2015 Influenza 15
2020-Ongoing Covid-19 76,939 (as of 2/2023)
145 https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/Immunization/Influenza.aspx Retrieved July 2022 146 https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/Immunization/pertussis.aspx Retrieved July 2022 Moreno Valley Hazard Mitigation Plan
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19.1.2 PANDEMIC FLU/DISEASE PROFILE – PROBABILITY OF FUTURE EVENTS
The probability rating for this hazard is a 2, which means that there is between a 1% and 10% chance that it will occur within the next year . This does not account for the ongoing (existing) pandemic conditions caused by Covid-19.
19.2 PANDEMIC FLU/DISEASE VULNERABILITY – OVERVIEW/IMPACT The severity rating for this hazard is a 3, which means that there is a potential for critical damage, causing injuries and/or illnesses resulting in permanent disability, complete shutdown of critical facilities for two weeks and/or 25% to 49% of property is severely damaged.
Impact to Population and Structures: Due to the geographic extent of a pandemic, the entire population is vulnerable to illness, injuries, and casualties. There is no expected damage to structures; however, there could be a quarantine which would prevent people from coming or going from a particular structure or area.
Impact to Essential Facilities/Historical Sites: Essential facilities and/or historical sites could be affected if there was a quarantine initiated by Public Health. Essential functions may be limited if a large percentage of the workforce was unable to report to work, as we experienced during Covid-19.
Impact to Infrastructure: Travel will likely be restricted during a pandemic, with mandates for quarantine likely during disease outbreak periods.
Development Trends: Future development of buildings, structures, critical facilities, and infrastructure could be impacted if there were disease outbreaks requiring special treatment of development areas prior to building. New development is shown in Appendix C.
19.2. 1 PANDEMIC FLU/DISEASE VULNERABILITY – POTENTIAL LOSS When the pandemic occurred, it affected everyone, not just in our city, but worldwide. The immediate and ongoing loss to income resulting from forced business closures, people’s inability to travel or generally move -about in public and spend money , weakened, and affected every aspect of life, including the local economy. As the pandemic continues, with new variants occurring, these impacts will continue for the foreseeable future.
Transportation, commerce, businesses small and large , and everything in between , has been negatively affected, and li kely would be again during a pandemic. What is unknown is the cost for things not as tangible, such as school closures with online learning.
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PART 3
MITIGATION STRATEGY
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CHAPTER 20: MITIGATION STRATEGY
20.1 INTRODUCTION
Chapter 20 provides information about the City of Moreno Valley’s mitigation strategies, which is the blueprint for reducing losses from the identified hazards that may affect the city. This chapter will provide an assessment of Moreno Valley’s capabilities; identification of hazard mitigation strategies and status; analysis of mitigation actions; and National Flood Insurance Program compliance information. The city’s identified hazards, and their respective mitigation strategies, were developed using a Threat and Hazard Identification and Risk Assessment (THIRA) approach which includes probabilities, priorities, and potential severities.
20.2 CAPABILITY ASSES SMENT
The City of Moreno Valley ’s capabilities for implementing mitigation strategies to reduce hazards that may affect the city include legal and regulatory capabilities, administrative and technical capabilities, fiscal capabilities and outreach and other capabilities.
Legal and Regulatory Capabilities: Moreno Valley formally adopts, regularly reviews, and updates regulatory policies such a general plan, along with implementing regulations such as zoning ordinances, subdivision ordinances, and specific plans. Table 20-1 is an example of regulatory capabilities that assist the City of Moreno Valley in its mitigation strategies.
TABLE 20-1: EXAMPLE OF REGULATORY CAPABILITIES
Regulatory Tool Comments
Floodplain ordinance
Municipal Code Title 8, Chapter 8.12 (Flood damage
prevention and implementation of National Flood Insurance Program (NFIP)) includes flood damage prevention and
implementation of the national flood insurance program
(NFIP). Utilized for public outreach and educational
awareness.
Water conservation
ordinance
Municipal Code Title 9, Chapter 9.17 (Landscape and
Water efficiency requirements) addresses water
conservation. Utilized for public outreach and educational awareness.
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Regulatory Tool Comments
Stormwater
ordinance
Municipal Code Title 8, Chapter 8.10(Storm water/urban
runoff management and discharge controls). Utilized for public outreach and educational awareness.
Wildfire ordinance
Municipal Code Title 6, Chapter 6.04 (Abatement of Public Nuisances). Utilized for public outreach and educational awareness.
Building Standards
Code
Utilize Approved California Building Codes; Latest adoption was July 1, 2022, with effective date of January 1, 2023.
Fire and Safety
Standards
Utilize Approved 2016 Fire and Safety Standards; effective date of January 1, 2017.
Fire department ISO
rating Rating: class 4 urban/9 rural
Erosion or sediment
control program
Municipal Code Title 8, Chapter 8.21.160 (Erosion Control) and Municipal Code Chapter 9.17.110 (Erosion
Control/Slope Planting). Utilized for public outreach and educational awareness.
Riverside County
Flood Control and
Water Conservation
District
Master Drainage
Plan
Three (3) master drainage plans (Sunnymead Area, West
End, Moreno). Utilized for public outreach and educational awareness.
Regional Water
Quality Control
Board Regulations
All proposed septic systems must comply; prevents
groundwater contamination
Santa Ana
Watershed Project
Authority Water
Resources Plan
Protects water quality in the Santa Ana watershed. Eastern Municipal Water District (which serves the City of Moreno Valley) is a part of the Santa Ana Watershed.
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Regulatory Tool Comments
National Pollutant
Discharge
Elimination System
Protects water resources from pollutants in runoff.
Capital
Improvements Plan
The Capital Improvements Plan (CIP) is updated annually.
Utilized to develop project budget, priorities, and develop mitigation strategies.
Economic
Development Plan 2-year plan, 2022. Utilized for community profile.
Local Emergency
Operations Plan Emergency Operations Plan, March 2018
Several mitigation goals and objectives are included in the city’s General Plan to assist with mitigation efforts. A good example is Goal S -1, along with a few corresponding objectives and policies:
Goal S-1: Protect life and property from natural and humanmade hazards.
Policy S.1 -1: Continue to restrict the development of habitable structures within Alquist - Priolo Earthquake Fault Zones consistent with State law.
Policy S.1-2: In areas of high liquefaction risk (see MoVal 2040: General Plan Map S -2), require that project proponents submit geotechnical investigation reports and demonstration that the project conforms to all recommended mitigation measures prior to City approval.
Policy S.1 -14: Require new development in Very High Fire Hazard Severity Zones (VHFHSZs) to prepare a Fire Protection Plan that minimizes risks by: Assessing site-specific characteristics such as topography, slope, vegetation type, wind patterns etc.; Siting and designing development to avoid hazardous locations (e.g. through fire breaks) to the extent feasible; Incorporating fuel modification and brush clearance techniques in accordance with applicable fire safety requirements and carried out in a manner which reduces impacts to environmentally sensitive habitat to the maximum feasible extent; Using fire -safe building materials and des ign features, consistent with the adopted Municipal Code and Fire and Building Code standards; Using fire-resistant landscaping; and Complying with established standards and specifications for fuel modification, defensible space, access, and water facilities.
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Goal S-2: Provide effective response to disasters and emergencies.
Policy S.2-1: Use the adopted Local Hazard Mitigation Plan and Emergency Operations Plan to guide actions and investments for emergency preparedness and response.
Another example of regulatory capabilities is Moreno Valley Municipal Code, Title 9, Chapter
9.17, which addresses water conservation and waste. Specifically, 9.17.160 (Landscape Water Use Efficiency Enforcement), states that the city will coordinate with the loca l water purveyors and encourage landscape water use efficiency such as tiered water rate structure; allocation-based conservation water pricing structure; irrigation audits and/or irrigation surveys.
As part of day-to-day business, the City is always exploring if there is a need to revise or enhance existing policies, procedures, processes, ordinances, plans, etc. Upon identified need of any such updates, revisions, or removals of such, the City, through documented processes and procedures would move accordingly to ensure such actions are completed.
The City takes proactive steps to regularly evaluate if existing capabilities, plans, procedures, strategies, etc. align with mitigation projects and activities. In the event there is a need for revisions, updates to these, or if new ones are necessary, the City will take appropriate steps to do so. Mitigation capabilities, whether administrative, fiscal, or other, and mitigation strategies must work together and as such, must be closely aligned to support each project and the overall mitigation program.
Administrative/Technical Capabilities: Table 20-1.1 gives an example of the personnel responsible for activities related to mitigation for the City of Moreno Valley.
TABLE 2 0-1.1: EXAMPLE OF ADMINISTRATIVE AND TECHNICAL
CAPABILITIES
Personnel Resources Department/Position
Engineer with knowledge of land
development/land management practices
Public Works Department/City
Engineer
Engineer/Professional trained in construction
practices related to buildings and/or
infrastructure
Community Development
Department/ Building and Safety
Supervisor and/or Building Official
Engineer with an understanding of natural
hazards
Public Works Department /City
Engineer
Floodplain manager Public Works Department /City
Engineer
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Personnel Resources Department/Position
Personnel skilled in GIS applications Financial & Administrative Services Department/GIS Analyst
Building Official Community Development
Department Building Official
Scientist familiar with local natural hazards N/A
Emergency Manager Fire-Office of Emergency
Management Division Manager
Grant writers All Departments
Cost benefit/analysis staff
Financial and Administrative
Services and Public Works
Departments
Example of Fiscal Capabilities: Table 20-1.2 shows an example of financial tools and resources that the city could potentially use to help fund mitigation activities.
TABLE 20 -1.2: FISCAL MITIGATION CAPABILITIES
Financial Resources Comments
Community Development Block Grants Requires council approval Capital improvements project funding Requires council approval Authority to levy taxes for specific purposes Requires voter approval Fees for water, sewer, gas, or electric services Utility tax; voter approval Impact fees for new development Requires council approval Incur debt through general obligation bonds Requires voter approval Incur debt through special tax bonds Requires voter approval Hazard Mitigation Grant Program (HMGP) Apply when available & projects meet requirements
Building Resilient Communities (BRIC) Grants Apply when available & projects meet requirements
Climate Adaptation Grants Apply when available & projects meet requirements
Drought Resilience Grants Apply when available & projects meet requirements
Cal CAP Seismic Safety Grants Apply when available & projects meet requirements
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Financial Resources Comments
Other Federal, state, or local grants that may
become available
The City has a new grants division
dedicated to seeking grant funding
sources for all-hazards mitigation and
other City-related projects
An example of a successful grant mitigation award is a storm drain project the city applied for as a result of a presidentially declared winter storm disaster (DR-1731). The project is to install a storm drain system in the middle of the tract bounded by R edlands Boulevard and Merwin Street, from Alessandro Boulevard to Campbell Avenue, and connected to an existing open channel on the southwest corner of Redlands Boulevard and Brodiaea Avenue. The project would provide the Moreno Townsite area with 100 -year storm level of protection. The lack of a proper storm drain system in the neighborhood has resulted in flooding events in almost every storm. The project is under design using grant funds.
Outreach and Other Capabilities
The City provides fire safety classes, through the Community Emergency Response Team (CERT) program to the community several times a year and partners with businesses and local agencies to provide information outreach during community events. The city also participates in regional mass care and shelter planning and incorporates planning for access and functional needs individuals. In addition, the city has designated a cooling center if needed during a heat emergency and a heating center for cold, winter days. The Police Department and the California Department of Transportation have a plan to divert traffic from Highway in the event of major traffic accidents.
Expansion and Improvement:
Planning & Regulatory: AB2140 compliance may entitle the City to additional mitigation grant funding and/or long-term recovery funds. This expansion alone could potentially elevate the City’s opportunities to obtain funding for much needed mitigation projects.
Admin/Technical: Given the critical nature of mitigation efforts, the City strives to expand and improve existing capabilities and resources whenever possible. Such efforts begin with day-to-day activities such as training and purchasing the latest technologies. Some of the ways the City will look to expand and improve existing administrative and technical capabilities specifically in the future include but are not limited to expansion of GIS capabilities and utilization of GIS technologies in more mitigation applications. Long—term training of engineers who assess or perform mitigation projects to better utilize the technology. Expansion may also include the utilization of more artificial intelligence (AI) Moreno Valley Hazard Mitigation Plan
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software in the future. Existing technologies and personnel may be able to expand capabilities with the addition of such new technology to better identify potential hazards.
Financial (Fiscal): The City is seeking to hire a high-level grant writing executive to ensure that the City is taking advantage of all potential grant funding opportunities, including critical mitigation grants.
Education & Outreach: The City will look to expand outreach and education promoting events such as the Great Shakeout to businesses and residents within the City.
Additionally, the City will explore opportunities for expanded promotion of the Firewise program to residents and businesses.
20.3 LOCAL HAZARD MITIGATION STRATEGIES AND PROGRESS The next several pages will provide a summary of the mitigation strategies that were chosen for reducing the potential losses identified in the hazard risk assessment. Each mitigation strategy shows the priority ranking, responsible department/division/pro gram, timeframe, funding, cost, and the status. In addition, the associated hazard(s) and relevant chapter from the LHMP is identified for each mitigation measure. The LHMP’s overall goals were identified in the Executive Summary in the beginning of the plan. They are:
1. Protect life, property, and the environment.
2. Provide public awareness.
3. Protect continuity of government; and
4. Improve emergency management, preparedness, collaboration, and outreach.
Priority Ranking: Several factors were considered to dete rmine the mitigation priority ranking for each mitigation measure. The highest priority ranking was assigned to those mitigation measures that met three criteria: 1) greatest potential for protecting life and property; 2) greatest potential for maintaining critical city functions and operability following a disaster; and 3) achievability in terms of community support, and cost effectiveness. Each mitigation action is assigned a priority ranking as follows:
Critical: Most important goals/actions (may be short-term or long-term) High: To be implemented in the short-term future
Moderate: To be implemented when funding/resources become available.
Benefit/Cost Review: The benefits of proposed projects were weighed against costs as a part of the project prioritization process to determine if the proposed project should be ranked critical, high, or moderate. Where possible, an actual benefit/cost analysis ratio was provided.
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Previous Mitigation Projects: Listed in the bullets below are the mitigation projects from the City’s 2017 LHMP that were completed. All incomplete projects from this plan are listed in the Mitigation Strategy section as projects still to be completed.
• Replace the existing functionally obsolete SR-60/Redlands Avenue Overcrossing two-lane bridge with a four-lane bridge. Obtain funds and request Caltrans and City Council approval to perform environmental studies, design, and construction. This project from the 2017 plan is currently in the design phase. Refer to Mitigation Strategy 4.7 below for additional details.
• Replace the existing functionally obsolete SR-60/Theodore Avenue Overcrossing two-lane bridge with a four or six-lane bridge. Obtain funds and request Caltrans and City Council approval to perform environmental studies, design, and construction. This project from the 2017 plan is currently in the design phase. Refer to Mitigation Strategy 4.8 below for additional details.
• Ensure that minimum building standards are implemented to safeguard life, limb, health, property, and public welfare by regulating and controlling the design, construction, quality of materials, use and occupancy, location and maintenance of all buildings and structures within the City of Moreno Valley. Adopt current California Building Standards Code, California Code of Regulations, Title 24, the California Building Code, California Mechanical Code, California Residential Code, California Plumbing Code, California Fire Code, and the California Electrical Code and adopting other regulations relating to Building and Fire Prevention requirements. This project from the 2017 plan was co mpleted in 2017. Refer to Mitigation Strategy 6.14 below for additional details.
• For the flooding problems at Hubbard Street and Dunleavy Court neighborhood, the ultimate solution is to construct a storm drain system to collect flows from the upstream end, run off along Hubbard Street with inlets at Dunlavy Court and lateral streets and carry them to the existing Line H -1 on Ironwood Avenue in the City of Moreno Valley. This project from the 2017 plan was completed in 2019. Refer to Mitigation Strategy 6.13 below for additional details.
• Encourage public participation in the city’s hazard mitigation update process by designating a Hazard Mitigation web page in the Emergency Section of the city website that is specific to the City of Moreno Valley Local Hazard Mitigation Plan.
This project from the 2017 plan was completed during the update of that plan as well as during the update of this plan. Although complete, the concept of soliciting input from residents about the plan remains an ongoing effort.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Mitigation Strategies and Status: Beginning on the next page, grouped by identified hazard, is a summary of the city’s new and updated strategies that serve to mitigate the hazards that may affect the City of Moreno Valley.
Each Mitigation Strategy and Status includes information about actual or potential funding sources. The City prioritizes seeking any available federal, state, or local mitigation gran ts including but not limited to: Building Resilient Communities (BRIC), Hazard Mitigation Grant Program (HMGP), Cal Trans grants, Utility Infrastructure grants, etc. It should also be noted that grants often have a very specific target capability they are lo oking to award for which may cause certain projects to be ineligible for a given grant year or grant cycle. Grants may also have target demographics, such as vulnerable populations , that they are looking to ensure the funds will directly benefit, which may or may not align with some projects given their geographic location . Other complexities of grant awards can be incomplete project funding. Many of the projects noted in this plan carry significant price tags that a single grant may not cover , rendering th e funds unattainable if other supplemental funding is not immediately available. By listing the potential grant funding sources for each strategy, this does not imply that those are the only potential funding sources the City may seek , it only indicates that those are the most common, probable, or likely to be sought.
The Mitigation Strategies section also contains information about timeframe. The timeframe is generally a reference towards when the project was last included in the LHMP (if applicable). References to “ongoing” generally refer to the fact the project is not completed as of the time of this revision.
Status within this section generally refers to the overall project status. Some reveal assessed meaning they were assessed and ev aluated during the 2017 plan and ongoing again, referring to the fact that the project remains ongoing.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Mitigation Strategies
Chapter 4 – Earthquake
4.1 Mitigation
Strategy:
New Mitigation Strategy – Minimize the potential for loss of life and protect the community from the physical injury and property damage due to seismic ground shaking and secondary effects.
Require all new development projects, existing critical and essential facilities, and struc tures to comply with the City of Moreno Valley Municipal Code.
Priority: Critical
Responsible Dept: Building & Safety; Land Development
Timeframe: 2017- Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? Utilize Approved California Building Codes; Latest adoption was July 1, 2022, adopting the 2022 Building Codes with effective date of January 1, 2023.
Does this capability require an update to support this
mitigation effort? No, Code updates are required every 3 years. No update needed specifically as a result of this strategy.
Assessed
C
Chapter 4 – Earthquake
4.2 Mitigation
Strategy:
Mitigation Update – Reduce fault rupture and liquefaction hazards through the identification and recognition of potentially hazardous conditions and areas as they relate to the San Jacinto fault zone and the high and very high liquefaction hazard zones.
Require all new devel opment projects produce geologic studies and comply with mitigation for fault rupture hazards in accordance with the Alquist-Priolo Special Study Zones Act.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Priority: Critical
Responsible Dept: Land Development; Planning
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort utilizes approved California Building Codes.
Does this capability require an update to support this
mitigation effort? No
Assessed
C\
Chapter 4 – Earthquake
4.3 Mitigation
Strategy:
New Mitigation Strategy – Reduce potential for loss of life, property, and damage from earthquake events. Encourage public participation and usage of Cal OES’ “MyHazards” tool to discover hazards in their area (earthquake, flood, fire, and tsunami) and learn steps to reduce personal risk.
Priority: High
Responsible Dept: Office of Emergency Management
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or
local grant opportunities
Plan Goal(s)*: 1, 2
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? Ongoing community outreach efforts about the LHMP and
general disaster preparedness outreach as part of the General Plan goals.
Does this capability require an update to support this
mitigation effort? Yes, LHMP must be updated every 5 years.
No update needed specifically as a result of this strategy.
Assessed
Chapter 4 – Earthquake
4.4 Mitigation
Strategy:
Mitigation Update – Protect historic buildings from geologic hazards. Evaluate historic buildings relative to the need for mitigation of geologic hazards, while weighing their historical value against the potential hazard of their collapse.
Priority: Moderate
Responsible Dept: Building & Safety
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP), Climate
Adaptation Grants, Drought Resilience
Planning, CalCAP Seismic Safety, and
other Federal, State, or local grant
opportunities
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? Building Standards
Code – Historical
Building Code and
Existing Building
Code
Utilize Approved California Building
Codes; Latest adoption was July 1,
2022, adopting the 2022 Building Codes
with effective date of January 1, 2023.
Does this capability require an update to support this
mitigation effort? Yes, Code update required every 3 years. No update needed specifically as a result of this strategy.
Assessed
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Chapter 4 – Earthquake
4.5 Mitigation
Strategy:
Mitigation Update – Replace the existing structurally deficient SR- 60/Moreno Beach Drive two-lane bridge with a six-lane bridge and complete the SR -60/Moreno Beach improvements. Obtain funds and request City Council approval to complete design and perform construction.
Priority: Critical
Responsible Dept: Capital Projects
Timeframe: November 2022 – November 2023
Funding/Cost: Federal, TUM F, Local Shares
secured/approx. $29 million
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation assists in supporting the Capital Improvement Plan and Federal Highway Bridge Program.
Does this capability require an update to support this
mitigation effort? Yes, CIP is reviewed and updated
periodically. No update needed specifically as a result of this strategy.
Ongoing. The project could provide a new Moreno Beach
Drive/SR-60 bridge that meets current seismic
standards/requirements. The project could mitigate earthquake hazards by providing a new bridge that meets current seismic standards. The project is under the right-of-way phase. Design completion and construction funds are not identified.
Chapter 4 – Earthquake
4.6 Mitigation
Strategy:
Mitigation Update – Replace the existing structurally deficient SR- 60/Indian Street Overcrossing two -lane bridge with a two or four - lane bridge. Obtain funds and request Caltrans and City Council approval to perform environmental studies, design, and
construction.
Priority: Critical
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Responsible Dept: Capital Projects
Timeframe: 207 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Supporting
Capability:
Plan Goal(s)*: 1
What identified capability supports this mitigation effort? This mitigation assists in supporting the Capital Improvement Plan and Federal Highway Bridge Program
Does this capability require an update to support this
mitigation effort? Yes, CIP is reviewed and updated
periodically. No update needed specifically as a result of this strategy.
Status: The project could provide a new Indian Street bridge that meets current seismic standards/requirements. The project is under preliminary study for timeline and funding opportunities.
Chapter 4 – Earthquake
4.7 Mitigation
Strategy:
Mitigation Update – Replace the existing functionally obsolete SR-60/Redlands Avenue Overcrossing two -lane bridge with a four-lane bridge. Obtain funds and request Caltrans and City Council approval to perform environmental studies, design, and construction.
Priority: Critical
Responsible Dept: Capital Projects
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Plan Goal(s)*:
1 Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation assists in supporting the Capital Improvement Plan and Federal Highway Bridge Program.
Does this capability require an update to support this
mitigation effort? Yes, CIP is reviewed and updated
periodically. No update needed specifically as a result of this strategy.
Ongoing. The project could provide a new Redlands Avenue bridge that meets current seismic standards/requirements. The project is under preliminary study for timeline and funding opportunities.
Chapter 4 – Earthquake
4.8 Mitigation
Strategy:
Mitigation Update – SR-60/World Logistics Center Parkway Project:
Replace the existing functionally obsolete SR -60/Theodore Avenue Overcrossing two-lane bridge with a four or six-lane bridge. Obtain funds and request Caltrans and City Council approval to perform environmental studies, design, and construction.
Priority: Critical
Responsible Dept: Capital Projects
Timeframe: January 2022 to December 2025 (tentative)
Funding/Cost: Funds identified for environmental studies and preliminary engineering; funds needed for
design and construction
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP), Climate
Adaptation Grants, Drought Resilience Planning,
CalCAP Seismic Safety, and other Federal,
State, or local grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Capital Improvement Plan and Federal Highway Bridge Program.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Status:
Does this capability require an update to support this mitigation effort? Yes, CIP is reviewed and updated periodically. No update needed specifically as a result of this strategy.
In progress. The project could provide a new WLC/Theodore Street bridge that meets current seismic standards/requirements. The project is under environmental and preliminary engineering studies.
Chapter 4 – Earthquake
4.9 Mitigation
Strategy:
New Mitigation Strategy – Replace the existing functionally obsolete SR- 215/Cactus Avenue Overcrossing two -lane bridge with a four or six -lane bridge. Obtain funds and request Caltrans and City Council approval to perform environmental studies, design, and construction.
Priority: High
Responsible Dept: Capital Projects
Timeframe: January 2024 to December 2027 (tentative)
Funding/Cost: Funds identified for environmental studies and preliminary engineering; funds needed for design
and construction
City continues to explore BRIC, Hazard Mitigation
Grant Funding (HMGP), Climate Adaptation Grants,
Drought Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local grant
opportunities
Plan Goal(s)*: S-1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation assists in supporting the Capital Improvement Plan and Federal Highway Bridge Program
Does this capability require an update to support this mitigation effort? Yes, CIP is reviewed and updated periodically. No update needed specifically as a result of this strategy.
Assessed and Ongoing. The project could provide a new Cactus Avenue bridge that meets current seismic standards/requirements. The project is under environmental and preliminary engineering studies.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Chapter 5 – Wildland and Urban Fires
5.1 Mitigation
Strategy:
Mitigation Update – Ensure that property in or adjacent to wildland areas is reasonably protected from wildland fire hazard, consistent with the maintenance of a viable natural ecology. Continue ongoing inspection programs for hazardous fuel and abatement on occupied and vacant parcels. Encourage programs to minimize the fire hazard, including but not limited to, the prevention of fuel build -up where wildland areas are adjacent to urban development. For new construction and significant tenant improvement, continue adherence to existing city Municipal Code standards.
Priority: High
Responsible Dept: Code Enforcement; Fire
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP), Climate
Adaptation Grants, Drought Resilience
Planning, CalCAP Seismic Safety, and other
Federal, State, or local grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? CA Fire Code; General Plan
Does this capability require an update to support this mitigation effort? Yes, codes are updated periodically, and General Plan is reviewed and updated periodically. No update needed specifically as a result of this strategy.
Assessed
Chapter 5 – Wildland and Urban Fires
5.2 Mitigation
Strategy:
Mitigation Update – Ensure that uses within urbanized areas are planned and designed consistent with applicable provisions of relevant regulatory policies. Ensure that ordinances, resolutions, and policies relating to urban development are consistent with the requirements of Moreno Valley Hazard Mitigation Plan
Revised: December 2022
acceptable fire safety, including requirements for smoke detectors, emergency water supply and automatic fire sprinkler systems.
Priority: Critical
Responsible Dept: Building & Safety; Fire
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP), Climate
Adaptation Grants, Drought Resilience
Planning, CalCAP Seismic Safety, and other
Federal, State, or local grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? Utilize Approved California Building Codes; Latest adoption was July 1, 2022, adopting the 2022 Building Codes with effective date of January 1, 2023.
Does this capability require an update to support this mitigation effort? Yes, Code update required every 3 years. No update needed specifically as a result of this strategy.
Assessed
Chapter 5 – Wildland and Urban Fires
5.3 Mitigation
Strategy:
Mitigation Update – Protect life and property from the potential fire hazard from improper or careless use, storage, treatment, and disposal of hazardous materials and waste. Require all land use applications and approvals to be consistent with applicable provisions of relevant regulatory policies.
Priority: Critical
Responsible Dept: Fire; Land Development; Riverside
County Department of Environmental
Health
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? These efforts are supported by numerous laws, standards, and ordinances within each discipline. CA Fire Code outlines requirements for storage, disposal, etc. of waste which is supported and implemented by Fire Prevention and County Env.
Health.
Does this capability require an update to support this
mitigation effort? Yes, state, municipal, and local codes require periodic updating. No update needed specifically as a result of this strategy.
Assessed
Chapter 5 – Wildland and Urban Fires
5.4 Mitigation
Strategy:
Mitigation Update – Protect life and property from potential fire hazard by limiting development in safety zones according to identified land uses. Within the safety zones (e.g., Air Crash Hazard Zones and Clear Zones), residential uses shall not be permitted, and business uses shall be restricted to low intensity uses as defined in regulatory policies including the March Air Reserve Base Air Installation Compatible Use Zone Report, as amended from time to time.
Priority: High
Responsible Dept: Planning; March Joint Powers Authority (MJPA); March Air Reserve Base
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP), Climate
Adaptation Grants, Drought Resilience
Planning, CalCAP Seismic Safety, and other
Federal, State, or local grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
What identified capability supports this mitigation effort? These efforts are supported by numerous laws, standards, and ordinances Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Status:
within each discipline. City General Plan and ordinances support economic development which is further supported by Fire Prevention and Planning ordinances.
Does this capability require an update to support this mitigation effort? Yes, plans and ordinances must be periodically updated. No update needed specifically as a result of this strategy.
Assessed
Chapter 5 – Wildland and Urban Fires
5.5 Mitigation
Strategy:
New Mitigation Strategy – Identify areas of high fire risk. Work with GIS to identify and create a special wildfire layer to designate high - risk areas for use on the city’s website.
Priority: High
Responsible Dept: Fire; GIS
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Plan Goal(s)*: 1, 2
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? CA Fire Code and CA Wildfire Mitigation Plans, as well as internal Fire Prevention standards and codes.
Does this capability require an update to support this mitigation effort? Yes, plans and codes require periodic review and updating.
No update needed specifically as a result of this strategy.
Assessed
Chapter 5 – Wildland and Urban Fires
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
5.6 Mitigation
Strategy:
New Mitigation Strategy – Reduce potential for damage from fire.
Outreach and education to property owners about defensible space around structures and general abatement on vacant parcels.
Priority: High
Responsible Dept: Code Enforcement; Fire
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Plan Goal(s)*: 1, 2
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? CA Fire Code and CA Wildfire Mitigation Plans, as well as internal Fire Prevention standards and codes.
Does this capability require an update to support this mitigation effort? Yes, plans and codes require periodic review and updating.
No update needed specifically as a result of this strategy.
Assessed
Chapter 5 – Wildland and Urban Fires
5.7 Mitigation
Strategy:
New Mitigation Strategy – Reduce response time for fire events.
Construct new four-lane bridge across Perris Valley Channel at Indian Street with some flood control improvements.
Priority: High
Responsible Dept: Capital Projects
Timeframe: 2023 to 2025 (tentative)
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP), Climate
Adaptation Grants, Drought Resilience
Planning, CalCAP Seismic Safety, and
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
other Federal, State, or local grant
opportunities
Plan Goal(s)*: S-1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation assists in supporting the Capital Improvement Plan and Federal Highway Bridge Program.
Does this capability require an update to support this mitigation effort? Yes, CIP is reviewed and updated periodically. No update needed
specifically, as a result of this strategy.
Pending
Chapter 5 – Wildland and Urban Fires
5.8 Mitigation
Strategy:
New Mitigation Strategy – Reduce response time for fire events.
Construct two -lane road for missing section of Heacock Street connecting it down to Harley Knox.
Priority: High
Responsible Dept: Capital Projects
Timeframe: 2024-2025
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP), Climate
Adaptation Grants, Drought Resilience
Planning, CalCAP Seismic Safety, and
other Federal, State, or local grant
opportunities
Plan Goal(s)*: S-1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation assists in supporting the Capital Improvement Plan.
Does this capability require an update to support this mitigation effort? Yes, CIP is reviewed and updated periodically. No update needed specifically as a result of this strategy.
Assessed and pending
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Chapter 6 – Flooding
6.1 Mitigation
Strategy:
Mitigation Update – Reduce the potential from flood damage. Permit only acceptable land use development in 100-year floodplain. Review project proposals to ensure that they meet the accepted land use for the location. Require all land use applications and approvals to be consistent with applicable provisions of relevant regulatory policies.
Priority: High
Responsible Dept: Capital Projects, Land Development
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP), Climate
Adaptation Grants, Drought Resilience
Planning, CalCAP Seismic Safety, and other
Federal, State, or local grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists to support the National Flood Insurance Program floodplain ordinance
Does this capability require an update to support this mitigation effort? No
Ongoing
Chapter 6 – Flooding
6.2 Mitigation
Strategy:
Mitigation Update – Locate critical facilities, such as hospitals, fire stations, police stations, public administration buildings and schools outside of flood hazard areas. Review land use and flood maps to ensure proposed critical facilities are not within flood prone areas.
Priority: High
Responsible Dept: Capital Projects; Land Development
Timeframe: Ongoing
Funding/Cost: Current funding source & cost unknown
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP), Climate
Adaptation Grants, Drought Resilience
Planning, CalCAP Seismic Safety, and other
Federal, State, or local grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the National Flood Insurance Program flood ordinance.
Does this capability require an update to support this mitigation effort? No
Assessed and pending
Chapter 6 – Flooding
6.3 Mitigation
Strategy:
Mitigation Update – Improve storm and water flow. Design, construct and maintain street and storm drain flood control systems to accommodate 10 year and 100-year storm flows, respectively. Determine potential projects to mitigate known flood areas due to inadequate storm drain and flood control channels.
Priority: High
Responsible Dept: Capital Projects; Land Development
Timeframe: 2017 - Ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Plan Goal(s): 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
Pending project identification.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Chapter 6 – Flooding
6.4 Mitigation
Strategy:
Mitigation Update – Improve/widen the existing 1.0 mile of incised earthen channel with concrete side walls and invert along Heacock Street from Cactus Avenue to Perris Valley Drain Lateral “A”.
Priority: High
Responsible Dept: Capital Projects
Timeframe: Completed
Funding/Cost: Joint venture with March Joint Powers
Authority (MJPA) , March Air Reserve
Base, and Riverside County Flood
Control and Water Conservation District;
$18.7 million
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
In progress. The project, currently under design, could provide the area along Heacock Channel with 100 -year storm level of protection. The existing channel currently cannot carry 10 -year flood. Threat to residential areas and March Air Reserve Base properties. Flooding events threaten to undermine the road and underlying utilities, resulting in closures affecting ingress and egress of 700 residences and businesses and resulting in damages to March Air Reserve Base’s pump house and
transformer which interrupt their operations and emergency missions. A Flood Damage Reduction Study was completed in 2007 with a purpose of finding funding for the project.
Estimated Benefit-to-Cost Ratio*: 3.0
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Chapter 6 – Flooding
6.5 Mitigation
Strategy:
Mitigation Update – Improve/widen the existing 1.5 mile of incised earthen channel with concrete side walls and invert along Cactus Avenue from Elsworth Street to Heacock Street and connecting to Heacock Channel.
Priority: High
Responsible Dept: Capital Projects
Timeframe: N/A
Funding/Cost: Current funding source & estimated cost
$7.5m
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
Pending. The project could provide the area along Cactus Channel with 10 0-year storm level of protection capacity. The existing channel currently cannot carry 10-year flood. The existing Cactus Channel has limited capacities which result in overtopping and flooding to residential areas and March ARB properties. Flooding events threaten to undermine the road and underlying utilities, result in closures affecting ingress and egress of businesses, and result in damages to March ARB’s pump house and transformer which interrupt March ARB’s operations and emergency missions.
A Flood Damage Reduction Study was completed in 2007 with a purpose of finding funding for the project. This project was identified in 2004 multi-jurisdictional plan.
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Chapter 6 – Flooding
6.6 Mitigation
Strategy:
Mitigation Update – Reconstruct/upsize storm drain system on Redlands Boulevard from Alessandro Boulevard to south of Brodiaea Avenue and connect to the existing open channel on the southwest corner of Redland Boulevard and Brodiaea Avenue.
Priority: High
Responsible Dept: Capital Projects
Timeframe: 2023-2025
Funding/Cost: Hazard Mitigation Grant (DR-1731) and
Moreno Area Drainage Plan (ADP) fees;
Only available for the construction of Line
F-18 and F-19; $4 million
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control District and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
This project is in design and is slated for construction in 2024/2025.
Estimated Benefit-to-cost Ratio: 3.62**
**Benefit to cost ratio, which is an indicator, used in cost-benefit analysis.
Chapter 6 – Flooding
6.7 Mitigation
Strategy:
Mitigation Update – Install storm drain system in the San Timoteo Foothill Neighborhood, running along Carrie Lane, from Locust Avenue to Kalmia Avenue, then west along Kalmia Avenue to Pettit Street and to be tied into existing storm drain on Pettit Street.
Priority: High
Responsible Dept: Capital Projects
Timeframe: 2017 - ongoing
Funding/Cost: Hazard Mitigation Grant (DR-1810) and
Moreno ADP fees; total cost $2.5 million;
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Riv. Co. Flood Control will provide
funding for project, amount TBD
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control District and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
Ongoing. The project could provide the San Timoteo Foothill Neighborhood with 100-year storm level of protection. The lack of proper storm drain system in the neighborhood has resulted in flooding events in almost every storm season. The implementation of the project could mitigate flooding hazards to the San Timoteo Foothill Neighborhood, including damages to roadway and properties, closures of roadways, health issues, disruptions of traffic and public services.
Estimated Benefit-to-Cost Ratio: 6.26**
**Benefit to cost ratio, which is an indicator, used in cost-benefit analysis.
Chapter 6 – Flooding
6.8 Mitigation
Strategy:
Mitigation Update – Install storm drain systems at two locations on Sunnymead Boulevard; at east of Frederick Street from Hemlock Avenue to 100 feet south of Sunnymead Boulevard and Graham street from Hemlock Avenue to Sunnymead Boulevard and connected.
Priority: High
Responsible Dept: Capital Projects
Timeframe: N/A
Funding/Cost: Measure “A” for local match; total cost
$45m
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities million
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control District and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
Pending. The proposed project could provide the businesses, public and private properties along Sunnymead Boulevard with 100-year storm level of protection. The existing storm drain systems are inadequate which result in flooding events in almost every storm season. The preliminary engineering has been done for the project in the efforts of getting enough information for filling out future HMGP grant application when it becomes available.
Chapter 6 – Flooding
6.9 Mitigation
Strategy:
Mitigation Update – Install a storm drain system in Perris Boulevard from Perris Valley Storm Drain Lateral “A” to north of Suburban Lane in the Perris Valley ADP.
Priority: High
Responsible Dept: Capital Projects; Riverside County Flood Control and Water Conservation District
Timeframe: N/A
Funding/Cost: Perris ADP fees; $600,000
Plan Goal(s)*: 1
Supporting
Capability:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control District and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Status: The project could provide 100-year storm level of protection for the lands around Perris Boulevard south of Suburban Lane.
Projected to be completed in the next LHMP review period.
Chapter 6 – Flooding
6.10 Mitigation
Strategy:
New Mitigation Strategy – Install a storm drain system Line K-1 (Stage 1) in Ironwood Avenue west of Moreno Beach Drive to Pettit Street.
Priority: High
Responsible Dept: Capital Projects; Riverside County Flood Control and Water Conservation District
Timeframe: N/A
Funding/Cost: Moreno ADP fees; $2 million
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control District and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
Pending. The proposed project could provide 100-year storm level of protection for the area north of Ironwood Avenue between Moreno Beach Drive and Pettit Street.
Chapter 6 – Flooding
6.11 Mitigation
Strategy:
New Mitigation Strategy – Install a storm drain system Line K parallel with Moreno Beach Drive from Ironwood Avenue to north of Kalmia Avenue.
Priority: High
Responsible Dept: Capital Projects; Riverside County Flood Control and Water Conservation District
Timeframe: N/A
Funding/Cost: Moreno ADP fees; $4 million
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control District and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
Pending. The project could provide 100 -year storm level of protection for the area west of Moreno Beach Drive south of Locust Avenue.
Chapter 6 – Flooding
6.12 Mitigation
Strategy:
New Mitigation Strategy – For the flooding problems at Kitching Street-Ivy Lane Neighborhood, the ultimate solution is to construct a storm drain system to collect flows from the upstream end, run off along Kitching Street and carry them to the existing Line B -16 on Ironwood Avenue in the City of Moreno Valley. The proposed storm drain system includes approximate 2,900 feet of reinforced concrete pipes and lateral basins. The proposed storm drain system is identified as Line B -16 A within Sunnymead Master Drainage Plan.
Priority: High
Responsible Dept: Capital Projects; Riverside County Flood Control and Water Conservation District
Timeframe: N/A
Funding/Cost: Estimated cost $1.4m
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Plan Goal(s)*: 1
Supporting
Capability:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control District and Water Conservation District Master Drainage Plan
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Status:
Does this capability require an update to support this
mitigation effort? No
Pending. The project could provide 100-year storm level protection for the area of Kitching Street-Ivy Lane Neighborhood.
Chapter 6 – Flooding
6.13 Mitigation
Strategy:
New Mitigation Strategy – For the flooding problems at Hubbard Street and Dunleavy Court neighborhood, the ultimate solution is to construct a storm drain system to collect flows from the upstream end, run off along Hubbard Street with inlets at Dunlavy Court and lateral streets and carry them to the existing Line H-1 on Ironwood Avenue in the City of Moreno Valley.
Priority: High
Responsible Dept: Capital Projects; Riverside County Flood Control and Water Conservation District
Timeframe: 2017-2018 -COMPLETED
Funding/Cost: City of Moreno Valley and Riverside
County Flood Control and Water
Conservation District; $1.5 million
Plan Goal(s)*: 1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control District and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
The project provided 100-year storm level protection for the area of Hubbard Street and Dunleavy Court Neighborhood.
Chapter 6 – Flooding
6.14 Mitigation
Strategy:
New Mitigation Strategy – Ensure that minimum building
standards are implemented to safeguard life, limb, health, property, and public welfare by regulating and controlling the design, construction, quality of materials, use and occupancy, location and maintenance of all buildings and structures within the City of Moreno Valley. Adopt current California Building Standards Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Code, California Code of Regulations, Title 24, the California Building Code, California Mechanical Code, California Residential Code, California Plumbing Code, C alifornia Fire Code, California Existing Building Code, California Historical Code, California Green Code, California Energy Code, and the California Electrical Code and adopting other regulations relating to Building and Fire Prevention requirements.
Priority: Critical
Responsible Dept: Building & Safety; Fire
Timeframe: 2017 Completed
Funding/Cost: Current funding; cost unknown
Plan Goal(s)*: 1, 2
Supporting
Capability:
Status:
What identified capability supports this mitigation effort?
Utilize Approved California Building
Codes; Latest adoption was July 1,
2022, adopting the 2022 Building Codes
with effective date of January 1, 2023.
Does this capability require an update to support this
mitigation effort? Yes, Code update required every 3 years. No update needed specifically as a result of this strategy.
COMPLETED.
Chapter 6 – Flooding
6.15 Mitigation
Strategy:
New Mitigation Strategy – Reduce flooding with the construction of multiple flood control basins throughout the City.
Priority: High
Responsible Dept: Capital Projects
Timeframe: 2024 and ongoing
Funding/Cost: Current funding source & cost unknown
City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP), Climate
Adaptation Grants, Drought Resilience
Planning, CalCAP Seismic Safety, and
other Federal, State, or local grant
opportunities
Moreno Valley Hazard Mitigation Plan
Revised: December 2022
Plan Goal(s)*: S-1
Supporting
Capability:
Status:
What identified capability supports this mitigation effort? This mitigation effort assists in supporting the Riverside County Flood Control and Water Conservation District Master Drainage Plan
Does this capability require an update to support this
mitigation effort? No
Assessed and pending.
Chapter 7 – Drought
7.1 Mitigation
Strategy:
New Mitigation Strategy – Decrease water usage on public and private parcels. Promote adoption of drought tolerant xeriscaping and potential incentives for landscaping replacement and continue removal and replacement of city -owned landscaping. Encourage contractors for residential and commercial developments to offer options promoting partnering agencies’ programs.
Priority: High
Responsible Dept: Facilities; Parks and Community
Services; Planning; Special Districts;
EMWD
Timeframe: Ongoing
Funding/Cost: City continues to explore BRIC, Hazard
Mitigation Grant Funding (HMGP),
Climate Adaptation Grants, Drought
Resilience Planning, CalCAP Seismic
Safety, and other Federal, State, or local
grant opportunities
Plan Goal(s)*: 2
Supporting
Capabilities:
Status:
What identified capability supports this mitigation effort? City General Plan and general Economic Development standards
Does this capability require an update to support this
mitigation effort? Yes, City plans require periodic update and review. No update needed specifically as a result of this strategy.
Assessed
Moreno Valley Hazard Mitigation Plan
Revised: December 2022