22-2352 Multi-Hazard Mitigation Plan Adopting Volume 1, City Meridian Annex CITY OF MERIDIAN RESOLUTION NO. 22-2352
BY THE CITY COUNCIL: BERNT, BORTON, CAVENER,
HOAGLUN, PERRAULT, STRADER
A RESOLUTION OF THE MAYOR AND CITY COUNCIL OF THE CITY OF
MERIDIAN ADOPTING VOLUME I, THE CITY OF MERIDIAN ANNEX, AND
APPENDICES OF VOLUME 1I OF THE 2022 UPDATE OF THE ADA COUNTY MULTI-
HAZARD MITIGATION PLAN; DIRECTING CITY STAFF TO IMPLEMENT THE
STRATEGIES THEREIN AND TO CONTINUE REPRESENTING THE CITY OF
MERIDIAN IN MATTERS RELATED TO THE PLAN, AND PROVIDING AN
EFFECTIVE DATE.
WHEREAS, natural hazards that increase the risk to life,property, environment, and the
economy exist within the City of Meridian, as they do throughout Ada County; and
WHEREAS,proactive mitigation of known hazards before a disaster event can reduce or
eliminate long-term risk to life and property; and
WHEREAS, The Disaster Mitigation Act of 2000 (Public Law 106-390) established new
requirements for pre- and post-disaster hazard mitigation programs; and
WHEREAS, a coalition of Ada County stakeholders with like planning objectives has
been formed to pool resources and create consistent mitigation strategies to be implemented
within each partners identified capabilities, within the Ada County Planning Area; and
WHEREAS, the coalition has completed a planning process that engages the public,
assesses the risk and vulnerability to the impacts of natural hazards, develops a mitigation
strategy consistent with a set of uniform goals and objectives, and creates a plan for
implementing, evaluating, and revising this strategy; and
WHEREAS, the Mayor and City Council find that it is in the best interest of the people
of Meridian to adopt and implement the 2022 updates to the applicable portions of the Ada
County Multi-Hazard Mitigation Plan;
NOW, THEREFORE,BE IT RESOLVED BY THE CITY COUNCIL OF THE
CITY OF MERIDIAN, IDAHO:
Section 1. That the City of Meridian hereby adopts in its entirety Volume I, the City of
Meridian annex, and appendices of Volume II of the 2022 Ada County Multi-Hazard Mitigation
Plan.
Section 2. That the City of Meridian will use the adopted and approved portions of the
Hazard Mitigation Plan to guide pre- and post- disaster mitigation of the hazards identified,
coordinate the strategies identified in the Hazard Mitigation Plan with other planning programs
and mechanisms under its jurisdictional authority, continue its support of the on-going
ADOPTING 2022 MULTI-HAZARD MITIGATION PLAN PAGE I
countywide mitigation efforts, continue to participate in the Planning Partnership as described by
the Hazard Mitigation Plan, and help to promote and support the mitigation successes of all
Planning Partners.
Section 3. That this Resolution shall be in full force and effect immediately upon its
adoption and approval.
ADOPTED by the City Council of the City of Meridian, Idaho, this 1 st day of
November, 2022.
APPROVED by the Mayor of the City of Meridian, Idaho, this 1 st day of November,
2022.
APPROVED:
Robert E. Simison, Mayor 11-1-2022
ATTEST:
By:
Chris Johnson, City Clerk 11-1-2022
ADOPTING 2022 MULTI-HAZARD MITIGATION PLAN PAGE 2
C��((IER
MEMO TO TO CITY COUNCIL
Request to Include Topic on the City Council Agenda
From: Jason Korn, Public Works Meeting Date: 11/1/2022
Presenter: Jason Korn Estimated Time: 10 Min
Topic: Discussion of Resolution accepting all of Volume 1 and the Meridian annex of volume
2 within the 2022 Ada County Multi-Hazard Mitigation Plan
Recommended Council Action:
Approve Resolution adopting Volume 1 and the City of Meridian annex of the 2022 Ada County
Multi-Hazard Mitigation Plan.
Background:
Hazard Mitigation Planning for the Ada County Planning Area:
In June 2021,a coalition of Ada County planning partners embarked on a planning process to
prepare for and lessen the impacts of specified natural hazards. Responding to federal mandates in
the Disaster Mitigation Act of 2000,the partnership was formed to pool resources and create a
uniform hazard mitigation strategy that can be consistently applied to the defined planning area
and used to ensure eligibility for specified grant funding sources.
The 21-member planning partnership that completed this plan update process includes
• Ada County • Eagle Fire District • Meridian
(Unincorporated) . Eagle Sewer District Development
• City of Boise • Eagle Urban Renewal Agency Corporation
• City of Eagle • Flood Control District#10 • North Ada Co. Fire
• City of Garden City • Greater Boise Auditorium and Rescue
• City of Kuna District • Star Joint Fire
• City of Meridian • Independent School District of Protection District
• City of Star Boise • Star Sewer District
• Ada County • Joint School District#2 • Whitney Fire
Highway District • Kuna Rural Fire Protection Protection District
District
The planning area for the hazard mitigation plan encompasses all of Ada County.The result of the
organizational efforts has been to produce a Federal Emergency Management Agency (FEMA) and
the Idaho Office of Emergency Management(IOEM) approved multi-agency multi-hazard mitigation
plan.
Page 1 of 2
The hazard identification and profiling in the hazard mitigation plan addresses the following
natural hazards considered to be of significant importance within the Ada County planning area:
• Dam/canal failure • Flood
• Drought • Landslide
• Earthquake • Volcano (ash fall)
• Extreme Weather • Wildfire
Ada County Emergency Management&Community Resilience (EMCR) secured funding for
developing the hazard mitigation plan and was the lead coordinating agency for this multi-
jurisdictional effort. All participating local jurisdictions have been responsible for assisting in the
development of the hazard and vulnerability assessments and the mitigation action strategies for
their respective jurisdictions and organizations. Meridian's hazard mitigation planning team
consists of members from Fire, Planning and Public Works.
The overall plan update process was overseen by a 19-member,stakeholder Steering Committee
with Meridian represented by Jason Korn. In addition, residents were asked to contribute by
sharing local knowledge of their individual area's vulnerability to natural hazards based on past
occurrences. Public involvement has been solicited via a multi-media campaign that included public
meetings,web-based information, questionnaires,and progress updates via the news media.
NEXT STEPS
Why adopt this Plan?
Once the hazard mitigation plan has been approved by IOEM and FEMA and adopted by all of the
jurisdictional partners,the partnership will collectively and individually become eligible to apply
for hazard mitigation project funding from the suite of grant programs under FEMA's Hazard
Mitigation Assistance (HMA) program.The Plan needs to be adopted as the final step in the process.
Where do we go from here?
Meridian will need to adopt Volume 1 and respective annex by resolution to be eligible to apply for
funding sources including grants. Grant funds are made available to local governments and states
and can be used to implement the various hazard mitigation measures specified in the respective
annexes. Meridian currently has a grant application under review for Ninemile Creek Mitigation.
Due to the previous plan being expired,the Ninemile Creek application received an extraordinary
circumstances extension to remain eligible as long as the new plan is adopted according to
schedule.
The Hazard Mitigation Plan is considered a living document, such that as awareness of additional
hazards develop and new strategies and projects are conceived to offset or prevent loss due to
natural hazards,the Plan will be evaluated and revised on an annual basis during the 5 year plan
timeframe.
Attachments:
• Ada County Multi-Hazard Mitigation Plan Volume 2, Meridian Annex
• Resolution
Link:Ada County Multi-Hazard Mitigation Plan Volume 1
https:,L/adacounty.id.gov/emergencymanagement/wp-content/uploads/sites/39/2022-
07 AdaCoHazMitPlanVoll PublicReviewDraft.pdf
Page 2 of 2
6. CITY OF MERIDIAN
6.1 LOCAL HAZARD MITIGATION PLANNING TEAM
Primary Point of Contact Alternate Point of Contact
Jason Korn,Environmental Programs Coordinator Joanna Hopson,Business Programs Manager
33 E Broadway Ave 33 E Broadway Ave
Meridian, ID 83642 Meridian, ID 83702
Telephone: 208-489-0364 Telephone: 208-898-5500
e-mail Address:jkom@meridiancity.org e-mail Address:jhopson@meridiancity.org
This annex was developed by the local hazard mitigation planning team, whose members are listed in Table 6-1.
Table 6-1. Local Hazard Mitigation Planning Team Members
Name Title
Caleb Hood Planning Division Manager
Joe Bongiorno Deputy Chief
Jason Korn Environmental Programs Coordinator
Joanna Hopson Business Programs Coordinator
6.2 JURISDICTION PROFILE
6.2.1 Location and Features
Meridian is not only geographically located in the center of the Treasure Valley,but it also is the population
center of the Treasure Valley;people are evenly distributed in all directions from Meridian. Downtown Meridian
is approximately 10 miles from the heart of Boise.
Meridian is favored by a mild, and climate. July is the hottest month,with the average high temperature of 90'F.
January is the coldest month with an average low temperature of 22'F. The normal precipitation pattern in the
Meridian area shows a winter high of 1.2 inches of precipitation per month and a very pronounced summer low of
about 0.1 inches. Typically,there are 12 inches of annual precipitation.
6.2.2 History
The City of Meridian was incorporated in August 1903. Meridian has transformed from a sagebrush-filled mail
drop located on the Oregon Trail in the 1880s,to a small fruit orchard center after the turn of the century through
the 1930s,to a dairy-based farming community in the 1940s. Meridian is named for Idaho's principle meridian
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2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
used for the initial survey of the state which coincides with Meridian Road at the center of the City. Its character
as a small farming community continued until approximately 1990,when its population was still about 10,000.
6.2.3 Governing Body Format
Meridian uses the Mayor-Council form of local government. In Meridian,the Council,which includes the Mayor,
possesses both legislative and executive authority. Departments include: City Clerk, Community Development,
Finance,Fire,Human Resources,Legal,Mayor's Office,Parks&Recreation,Police, and Public Works.
The City Council is responsible for the adoption of this plan, City Departments are responsible for its
implementation.
6.3 CURRENT TRENDS
6.3.1 Population
According to COMPASS,the population of the City of Meridian as of April 2022 was 133,470. Since 2017,the
population has grown at an average annual rate of 7.2 percent.
6.3.2 Development
As of November 2021, single family housing is the predominant development in Meridian, accounting for 82%of
all dwelling units. Additionally, at the end of 2021,Meridian provided 21%of available jobs in Ada County, or
53,035. Meridian seeks to offer a diversity of housing products, create strong and sustainable jobs, improve
infrastructure, and support diversified modes of transportation.
Identifying previous and future development trends is achieved through a comprehensive review of permitting
since completion of the previous plan and in anticipation of future development. Tracking previous and future
growth in potential hazard areas provides an overview of increased exposure to a hazard within a community.
Table 6-2 summarizes development trends in the performance period since the preparation of the previous hazard
mitigation plan, as well as expected future development trends.
Table 6-2. Recent and Expected Future Development Trends
ResponseCriterion
Has your jurisdiction annexed any land since the preparation of the previous hazard mitigation plan? Yes
If yes,give the estimated area annexed and estimated 1,876 acres; 10,500 parcels
number of parcels or structures.
Is your jurisdiction expected to annex any areas during the performance period of this plan? Yes
If yes,describe land areas and dominant uses. Agricultural
If yes,who currently has permitting authority over Ada County
these areas?
Are any areas targeted for development or major redevelopment in the next five years? Yes
If yes,briefly describe,including whether any of the I West Meridian including the Fields Area west of McDermott(north of 1-84)
areas are in known hazard risk areas south of Chinden.This area includes Tenmile and Fivemile Creek SFHA.
South East Meridian south of Amity and generally north of Columbia,
between Eagle and Meridian roads.No known hazard risk areas.South West
Meridian,south of 1-84 west of Tenmile Rd.No know hazard risk areas.
6.2 TETRA TECH
2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
How many permits for new construction were issued 2016 2017 2018 2019 2020
in your jurisdiction since the preparation of the Single Family 1368 1428 1812 2109 1867
previous hazard mitigation plan? Multi-Family 45 86 110 104 111
Other 66 79 79 110 52
Total A 1692 2171 2273 2076
Provide the number of new-construction permits for Special Flood Hazard Areas:5 new structures since 2016. 1 Mobile Home
each hazard area or provide a qualitative description and 4 Commercial buildings all elevated above BFE. Development on
of where development has occurred. Ninemile, Eightmile and Fivemile Creek floodplains.
• Landslide:0
• High Liquefaction Areas:0
• Wildfire Risk Areas:0
Describe the level of buildout in the jurisdiction,based Total area of Meridian area of annexed is 60.3%with 39.7%not annexed
on your jurisdiction's buildable lands inventory.If no Land use breakdown of area currently annexed compared to area not yet
such inventory exists,provide a qualitative annexed:
description. Residential:56%annexed 144%not annexed
Mixed Use: 17%annexed/83%not annexed
Employment:71%annexed/29%not annexed
Civic:84%annexed/16%not annexed
6.4 CAPABILITY ASSESSMENT
This section describes an assessment of existing capabilities for implementing hazard mitigation strategies. The
introduction at the beginning of this volume of the hazard mitigation plan describes the components included in
the capability assessment and their significance for hazard mitigation planning.
Findings of the capability assessment were reviewed to identify opportunities to expand, initiate or integrate
capabilities to further hazard mitigation goals and objectives. Where such opportunities were identified and
determined to be feasible,they are included in the action plan. The"Analysis of Mitigation Actions"table in this
annex identifies these as community capacity building mitigation actions. The findings of the assessment are
presented as follows:
• An assessment of planning and regulatory capabilities is presented in Table 6-3.
• Development and permitting capabilities are presented in Table 6-4.
• An assessment of fiscal capabilities is presented in Table 6-5.
• An assessment of administrative and technical capabilities is presented in Table 6-6.
• An assessment of education and outreach capabilities is presented in Table 6-7.
• Information on National Flood Insurance Program(NFIP)compliance is presented in Table 6-8.
• Classifications under various community mitigation programs are presented in Table 6-9.
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2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
Table 6-3. Planning and Regulatory Capability
OtherLocal
Opportunity?Authorit Authority Mandated
des,Ordinances,&Requirements 11 V
am
Building Code I YMEM No h Yes No
Comment. Comment:Meridian City Code Title 10, Chapter 1;Adopted 1112 2020,Ord.#20-1905
Zoning Code WYes N No I No No
Comment. Comment:Meridian City Code Title 11, Chapter 2,Adopted 7/8/2008;Ord.#08-1372
Subdivisions Yes No No No
Comment: Comment:Meridian City Code Title 11, Chapter 6;Adopted 71812008;Ord.#08-1372
Stormwater Management No ' Yes No No
Comment: Comment:ACHD owns and operates storm drain system on public roadways. City of Meridian Design Standards Section 7,
Grading and Drainage Standards.
Post-Disaster Recovery No No No No
Comment:
Real Estate Disclosure No No ` No No
_Comment:
Growth Management No No
Comment. Comment:City of Meridian Comprehensive Plan;Adopted 1211712019,Resolution#19-2179
Site Plan Review No No
Comment. Comment:Multiple City Ordinances and Departments.
Environmental Protection No No
Comment: Comment:Multiple City Ordinances and Departments.
Flood Damage Prevention No No No
Comment. Comment:Meridian City Code Title 10, Chapter 6,Adopted 5/12/2020;Ord.#20-1879
Emergency Management es T Yes No Yes
Comment: Comment:Emergency Management for the City of Meridian is done in partnership with ACCEM.Meridian participates
through the EMCR Board as well as representation on TAG Technical Advisory Group).
Climate Change No I No No
Comment:
Planning Documents
General Plan Y No No Yes
Is the plan equipped to provide linkage to this No
mitigation plan?
Comment: City of Meridian Comprehensive Plan;Adopted 1211712019;Resolution#19-2179
Capital Improvement Plan Yes No No
How often is the plan updated? Every year, 10-year time frame.
Comment. Capital Improvement Plan has been integrated into Comprehensive Financial Plan for FY23-FY32
Disaster Debris Management Plan I No ff Yes T No Yes
Comment: Draft Debris Management Annex awaiting adoption in EOP.
T
Floodplain or Watershed Plan es No No Yes
Comment: The 2022 Ada County Multi-Hazard Mitigation Plan qualifies as a flood hazard management plan under CRS criteria upon its
completion and adoption
Stormwater Plan No Yes No No
Comment. ACHD owns and operates storm drain system on public roadways and maintains a Stormwater Management Plan. Private
pert runoff managed by City of Meridian Design Standards Section 7, Grading and Draina a Standards.
Urban Water Management Plan IlLoM No No No
_Comment:
Habitat Conservation Plan No No No
Comment.
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2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
Local ther Jurisdiction State Integration
Authority Authofty •. • Opportunity?
Economic Development Plan Yes Yes No No
Comment: Meridian has economic development staff and an Urban Renewal Agency,Meridian Development Corp. (MDC). MDC has
development plans for various districts including those with flood hazard concerns.
Shoreline Management Plan No No No
Comment:
Community Wildfire Protection Plan No No No
Comment:
Forest Management Plan No No
Comment: _
Climate Action Plan No No
Comment:
Comprehensive Emergency Management Plan Yes No No
Comment: The City has adopted a Comprehensive Emergency Operations Plan utilizing Emergency Support Functions.
Threat&Hazard Identification&Risk Assessment(THIRA) Yes No Iff No
Comment: Ada County THIRA-September 2018
Post-Disaster Recovery Plan No No No
Comment:
Continuity of Operations Plan �es No No No
Comment: Individual Departments have updated COOP plans 2021
Public Health Plan F No Yes No No
Comment: Central District Health Department Emergency Operations Plan, 2020. Fire Department does have input on Public Health
planning via the ACCESS EMS system.
Table 6-4. Development and Permitting Capability
ResponseCriterion
Does your jurisdiction issue development permits? Yes
If no,who does?if yes,which department? Community Development,Building Services
Does your jurisdiction have the ability to track permits by hazard area? Yes
Does your jurisdiction have a buildable lands inventory? No
Table 6-5. Fiscal Capability
Financial Resource Accessible or Eligible to Use?
Community Development Block Grants Yes
apital Improvements Project F riding WILL, Yes
Authority to Levy Taxes for Specific Purposes Yes
User Fees for Water,Sewer,Gas or Electric Service
if yes,specify. Water and sewer utilities
Incur Debt through General Obligation Bonds No
Incur Debt through Special Tax Bonds No
Incur Debt through Private Activity Bonds No
Withhold Public Expenditures in Hazard-Prone Areas Yes
State-Sponsored Grant Programs Yes
Development Impact Fees for Homebuyers or Developers Yes
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2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
Table 6-6.Administrative and Technical Capability
Staff/Personnel Resource t Available?
Planners or engineers with knowledge of land development and land management practices Yes
If Yes,Department/Position: Community Development, Public Works;several positions
Engineers or professionals trained in building or infrastructure construction practices Yes
If Yes,Department/Position: Community Development, Public Works;several positions
Planners or engineers with an understanding of natural hazards Yes
If Yes,Department/Position: Community Development, Public Works;several positions
Staff with training in benefit/cost analysis Yes
If Yes,Department/Position: Community Development,Public Works;several positions
Surveyors No
Personnel skilled or trained in GIS applications Yes
If Yes,Department/Position: Information Technology,Community Development,Public Works,several positions
Scientist familiar with natural hazards in local area j No
If Yes,Department/Position: Planning partners available through universities and Idaho Department of Homeland Security
Emergency manager No
If Yes,Department/Position: No dedicated Emergency Manager for the City of Meridian.
Grant writers Yes
If Yes,Department/Position: Ability to contract for service
Table 6-7. Education and Outreach Capability
ResponseCriterion
Do you have a public information officer or communications office? Yes—Mayor's Office
_ Communications Manager
Do you have personnel skilled or trained in website development? Yes—Information
Technology
Do you have hazard mitigation information available on your website? Yes
If yes,briefly describe: Links to Ada County Mitigation websites
Do you use social media for hazard mitigation education and outreach? Yes
If yes,briefly describe: Flood Safety Awareness Week posts
Do you have any citizen boards or commissions that address issues related to hazard mitigation? No
If yes,briefly describe:
Do you have any other programs in place that could be used to communicate hazard-related Yes
information?
If yes,briefly describe: Annual CRS mailings to property owners in floodplain,Social Media and in person outreach events such as
Public Works Week.
Do you have any established warning systems for hazard events? Yes
If yes,briefly describe: Code Red—residents may sign up to receive emergency notifications and critical community alerts.
Ada County EMCR developed a Joint Information System Plan that delineates the processes with developing
a regional joint information system and center for coordinating public information messaging.
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2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
Table 6-8. National Flood Insurance Program Compliance
ResponseCriterion I
What local department is responsible for floodplain management? Community Development, Public Works
Who is your floodplain administrator?(department/position) JJW Public Works;City Engineer or Appointee
Are any certified floodplain managers on staff in your jurisdiction? Yes
What is the date that your flood damage prevention ordinance was last amended? 5/12/2020
Does your floodplain management program meet or exceed minimum requirements? Exceed
If exceeds,in what ways? Several(Low Floor 2'freeboard,Crawlspace 1'freeboard,added buffer of ma ed boundaries,etc.
When was the most recent Community Assistance Visit or Community Assistance 11/6/2017
Contact?
ll
Does your jurisdiction have any outstanding NFIP compliance violations that need to No
be addressed?
Are any RiskMAP projects currently underwaym your jurisdiction? No
Do your flood hazard maps adequately address the flood risk within your jurisdiction? No
Many Zone A hazard areas remain on Tenmile Creek and Fivemile Creek that require
additional analysis.Many areas are mis-aligned and far from the actual waterway channel.
Does your floodplain management staff need any assistance or training to support its Yes
floodplain management program?Need ongoing training for CFM certification and cross
training backup floodplain management staff
Does your jurisdiction participate in the Community Rating System(CRS)? Yes
If yes,is yourjurisdiction interested in improving Oproving its CRS Classification? No
How many flood insurance policies are in force in your jurisdiction?a 120
What is the insurance in force? $32,569,900
What is the premium in force? $87,637
How many total loss claims have been filed in your jurisdiction?a 1
What were the total payments for losses? $-
a. According to FEMA statistics as of March 31,2022
Table 6-9. Community Classifications
•. •? Classification Date Classified
FIPS Code Yes 1600152120 N/A
DUNS# Yes 028451367 N/A
Community Rating System Yes 8 7/25/2016
Building Code Effectiveness Grading Schedule Yes 5 10/19/2020
Public Protection Yes ISO Class 3 2020
JStorm Ready Yes Blu N/A
Firewise No N/A N/A
6.5 INTEGRATION REVIEW
For hazard mitigation planning, "integration"means that hazard mitigation information is used in other relevant
planning mechanisms, such as general planning and capital facilities planning, and that relevant information from
those sources is used in hazard mitigation. This section identifies where such integration is already in place, and
where there are opportunities for further integration in the future. Resources listed at the end of this annex were
used to provide information on integration. The progress reporting process described in Volume 1 of the hazard
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2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
mitigation plan will document the progress of hazard mitigation actions related to integration and identify new
opportunities for integration.
6.5.1 Existing Integration
Some level of integration has already been established between local hazard mitigation planning and the
following other local plans and programs:
• City of Meridian Comprehensive Plan—The Comprehensive Plan for Meridian currently includes
mitigation related policies as they related to the protection of human life and property from flood events.
Additionally,the Comprehensive plan addresses the need for natural resource protection and the
identification of known hazards within the County.
• Meridian Flood Damage Prevention Ordinance Ordinance integrates with Ada County Multi-Hazard
Mitigation Plan goals and objectives.
• COOP—The COOP plan for the City of Meridian was completed in 2012 and adopted by City Council.
6.5.2 Opportunities for Future Integration
The capability assessment presented in this annex indicates opportunities to integrate this mitigation plan with
other jurisdictional planning/regulatory capabilities. Capabilities were identified as integration opportunities if
they can support or enhance the actions identified in this plan or be supported or enhanced by components of this
plan. The capability assessment identified the following plans and programs that do not currently integrate hazard
mitigation information but provide opportunities to do so in the future:
• Comprehensive Plan Existing Conditions Report(ECR)—Integrate mitigation plan risk assessment
into hazardous areas section and reference mitigation actions in specific hazard sections.
• Comprehensive Financial Plan (CFP)—Mitigation may be funded, in part,through the City CFP plan
and if grant funds are awarded for mitigation they need to be programmed into the CFP.
Taking action to integrate each of these programs with the hazard mitigation plan was considered as a mitigation
action to include in the action plan in this annex.
6.6 RISK ASSESSMENT
6.6.1 Jurisdiction-Specific Natural Hazard Event History
Table 6-10 lists past occurrences of natural hazards for which specific damage was recorded in this jurisdiction
Other hazard events that broadly affected the entire planning area, including this jurisdiction, are listed in the risk
assessments in Volume 1 of this hazard mitigation plan.
6.6.2 Hazard Risk Ranking
Table 6-11 presents a local ranking of all hazards of concern for which this hazard mitigation plan provides
complete risk assessments. As described in detail in Volume 1,the ranking process involves an assessment of the
likelihood of occurrence for each hazard, along with its potential impacts on people,property and the economy.
Mitigation actions target hazards with high and medium rankings.
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2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
Table 6-10. Past Natural Hazard Events
-Type of Event FEMA Disaster# Date Damage Assessment
Thunderstorm/Microburst N/A 6/22/2021 Tree broken in half due to
thunderstorm outflow winds.
Estimated 60MPH wind gusts
Cloudburst Rain Event N/A Set 2013 Unknown
Cloudburst Rain Events N/A Aug 2010 Unknown
Wildfir N/A Sept 2000 Unknown
Rain&Flooding N/A Dec 1964 Unknown
Table 6-11. Hazard Risk Ranking
1 Extreme Weather 33 _ High
2 Flood 18 _ Medium
3 Earthquake 16 Medium
4 Drought 9 Low
5 Dam/Canal Failure 6 Low
6 Landslide IL 6 Low
7 Volcano 6 Low
8 Wildfire 0 Low
6.6.3 Jurisdiction-Specific Vulnerabilities
Volume 1 of this hazard mitigation plan provides complete risk assessments for each identified hazard of concern.
This section provides information on a few key vulnerabilities for this jurisdiction. Available jurisdiction-specific
risk maps of the hazards are provided at the end of this annex.
Repetitive Loss Properties
Repetitive loss records are as follows:
• Number of FEMA-identified Repetitive-Loss Properties: 0
• Number of FEMA-identified Severe-Repetitive-Loss Properties: 0
• Number of Repetitive-Loss Properties or Severe-Repetitive-Loss Properties that have been mitigated:
N/A
Other Noted Vulnerabilities
The following jurisdiction-specific issues have been identified based on a review of the results of the risk
assessment,public involvement strategy, and other available resources:
• Canal failure is a potential vulnerability. Refer to local irrigation districts for vulnerability assessments.
Mitigation actions addressing these issues were prioritized for consideration in the action plan in this annex.
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2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
6.7 STATUS OF PREVIOUS PLAN ACTIONS
Table 6-12 summarizes the actions that were recommended in the previous version of the hazard mitigation plan
and their implementation status at the time this update was prepared.
Table 6-12. Status of Previous Plan Actions
Carried Over
Removed; Plan Update
Longer Check 1 Action#in
No
Action Item from Previous Plan Completed Feasible if Yes Update
Action M-1—Conduct a survey of water,sewer,fire,and police infrastructure including ✓
power generation equipment,wastewater treatment plant facilities,communications,and
Supervisory Control and Data Acquisition(SCADA)equipment to analyze vulnerability to
severe weather and earthquake,then design and execute improvements to mitigate.
Comment: Wastewater treatment plant installed new switch for backup generator and has moved above ground power lines
underground in 2021.Added new item to address backup power availability at other critical facilities.
Action M-2—Become a"Firewise Community" ✓ M-8
Comment: Becoming a Firewise community is still a goal of the Meridian Fire Department as the City expands into more wildfire prone
areas.
Action M-3—Maintain good standing under the National Flood Insurance Program by ✓ M-4
implementing programs that meet or exceed the minimum NFIP requirements.Such
programs include but are not limited to:enforcing an adopted flood damage prevention
ordinance, participating in floodplain mapping updates,and providing public assistance
and information on floodplain requirements and impacts.
Comment: City of Meridian maintains good standing under the NFIP and continues to enforce flood damage prevention ordinance
through floodplain administration program.
Action M-4—Maintain,and improve where beneficial, participation rating in the ✓ M-15
Community Rating System(CRS)
Comment: City of Meridian currently maintains a CRS Rating of 8 and underwent Cycle Verification in 2020.
Action M-5—Evaluate surface water protection program, including surface water ✓
restoration,stormwater management,capital improvement program integration,and
potential regulatory and fee impacts.
Comment: The Ada County Highway District operates the storm drain system and maintains a Stormwater Management Plan in the City
of Meridian. Potential stream restoration and flood mitigation projects are listed as separate mitigation actions.
Action M-6—Partner with ACHD to implement a culvert replacement program for ✓ M-14
approximately 15 crossings of Fivemile, Ninemile,and Tenmile Creeks including design
and construction.
Comment: Culverts that have yet to be replaced are carried over to new plan.
Action M-7—Partner with Idaho Transportation Department(ITD)to design and ✓
construct culvert improvements on Fivemile Creek at Eagle Rd and the 1-84 I Eagle Road
Interchange according to recommendations of"Fivemile Creek at Interstate 84—Eagle
Road to Wells Street'Hydraulic Report, November 2008.
Comment: ITD completed culvert improvements, LOMR effective November 2, 2018
Action M-8—Assist local irrigation districts with vulnerability assessments on the ✓
Ridenbaugh and New York Canal systems in the Meridian Area of Impact.
Comment: Project is considered no longer feasible, remove from plan.
Action M-9—Perform an assessment to determine housing areas that would benefit ✓
from foundation elevation projects;and where appropriate,support and assist in grant
funding opportunities for retrofitting, purchase or relocation projects.
Comment: This action has been re-worded to include all high or medium risk hazard areas.
6-10 TETRA TECH
2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
Carried Over to
UpdateRemoved; Plan
UpdateNo Longer Check 'Action#in
Action Item from Previous Plan Completed Feasible if Yes
Action M-10—Integrate Multi-Hazard Mitigation Plan into the City of Meridian's ✓
Comprehensive Plan.
Comment: The Meridian City Council adopted a new Comprehensive Plan by resolution 19-2179 on December 17th, 2019.Multi-
Hazard Mitigation Plan is integrated and referenced in the new comp plan. Sections Livable/Public Safety address hazards
and coordination.
Action M-11—Consider appropriate higher regulatory standards that prevent or reduce ✓
risk to the built environment from the known hazards of concern.
Comment: To date, flood standards are consistent with community needs. Standards higher than the NFIP minimum remain in the new
flood damage prevention ordinance effective 6119120. Other standards will be evaluated on on-going basis.
Action M-12—Support County-wide initiatives identified in Volume 1. ✓ M-19
Comment: The city continues to support County-wide initiatives
Action M-13—Continue to support the implementation, monitoring,maintenance,and ✓ M-3
updating of this Plan,as defined in Volume 1.
Comment: Meridian continues to support the Ada County Multi-Jurisdictional Hazard Mitigation Plan planning process.Annual progress
reporting using BAToo/.
Action M-14—Provide fire safety,fire prevention and Firewise education to ✓ M 7
neighborhoods,schools and community via the internet,social media and direct public
outreach.
Comment: Fire safety and prevention education and outreach program is an ongoing effort of the Meridian Fire Department.
Action M-15—Whenever possible,coordinate with local experts and employ natural ✓
environmental processes in mitigation activities that increase ecosystem resilience and M 18
reduce the impacts of flooding on the built environment.
Comment: Continue to evaluate projects as opportunity arises.
6.8 HAZARD MITIGATION ACTION PLAN
Table 6-13 lists the identified actions, which make up the hazard mitigation action plan for this jurisdiction.
Table 6-14 identifies the priority for each action. Table 6-15 summarizes the mitigation actions by hazard of
concern and mitigation type.
Table 613. Hazard Mitigation Action Plan Matrix
Benefits New or Estimated
Existing Assets I •. Support
Action M-1—Where appropriate,support retrofitting, purchase or relocation of structures located in hazard areas, prioritizing those that
have experienced repetitive losses and/or are located in high-or medium-risk hazard areas.
Hazards Mitigated: Wildfire, Extreme Weather, Flood, Earthquake,Dam/Canal Failure, Landslide
Existing 3,8,9 City of Meridian N/A High HMGP, BRIC, FMA Short-term
Action M-2—Integrate the hazard mitigation plan into other plans,ordinances and programs that dictate land use decisions in the
community,including Flood Damage Prevention Ordinance,Community Risk Assessment and Comprehensive Plan.
Hazards Mitigated: Wildfire, Extreme Weather, Flood, Earthquake,Dam/Canal Failure, Landslide,Drought
New&Existing 2,5,6 City of Meridian Ada County Low Staff Time,General Ongoing
Funds
TETRA TECH 6-11
2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
Benefits New or Estimated
Existing Assets I • Support
Action M-3—Actively participate in the plan maintenance protocols outlined in Volume 1 of this hazard mitigation plan.
Hazards Mitigated: Wildfire, Extreme Weather, Flood, Earthquake,Dam/Canal Failure, Landslide, Drought,Volcano
New&Existing All City of Meridian Ada County Low Staff Time,General Short-term
Funds
Action M-4—Continue to maintain good standing and compliance under the NFIP through implementation of floodplain management
programs that,at a minimum,meet the NFIP requirements:
• Enforce the flood damage prevention ordinance.
• Participate in floodplain identification and mapping updates.
• Provide public assistance/information on floodplain requirements and impacts.
Hazards Mitigated: Flood
New&Existing 2, 3,4,6,8,9 City of Meridian N/A Low Staff Time,General Ongoing
Funds, Enterprise Funds
Action M-5—Coordinate with community stakeholders in both the public and private sectors to identify and pursue adaptive capacity
strategies that could improve community resilience in relation to future climate conditions.
Hazards Mitigated: Drought, Flood, Extreme Weather,Wildfire
New&Existing New&Existing City of Meridian N/A Low Staff Time,General Short-term
Funds
Action M-6—Identify and install the most suitable backup power solution for critical facilities and infrastructure that lack adequate backup
power.Solutions may vary based on circumstances and could include but are not limited to generators,switches, battery storage,and
solar systems.
Hazards Mitigated: Flood, Extreme Weather, Earthquake
Existing 1,3, 10 City of Meridian N/A Medium General Funds, Long-term
Enterprise Funds, BRIC,
HMGP
Action M-7—Provide fire safety,fire prevention and Firewise education to neighborhoods,schools and community via the internet,social
media and direct public outreach.
Hazards Mitigated: Wildfire
New&Existing 4,5,7,8,9 City of Meridian N/A Low Staff Time Ongoing
Action M-8—Become a"Firewise Community"
Hazards Mitigated: Wildfire
New&Existing 4,5,7,8,9 City of Meridian N/A Low Staff Time Long-term
Action M-9—Update the Black's Creek Reservoir breach analysis and the resulting downstream flood inundation map using the most
recent, highest resolution GIS data available.The model suggested for use should be HEC-RAS or an equivalent two-dimensional model
that can satisfactorily recognize and address the hydrologic interactions with all natural and constructed geographic features that are
located downstream of the facility.The breach analysis will model the reservoir at a full pool condition and will include two(2)scenarios
consisting of(1)a non-flood failure(aka"sunny day"),and(2)a flood event failure during the 1%inflow design flood(aka 100-year flood).
Hazards Mitigated: Flood, Dam/Canal Failure
New&Existing 2,6,7,8,9 City of Meridian N/A Medium BRIC, FMA, HMGP Short-term
Action M-10—Ensure adequate water supply in drought conditions through purchasing space in new surface water storage projects.
Hazards Mitigated: Drought, Dam/Canal Failure
New&Existing 1,9, 10 City of Meridian IDWR High Enterprise Funds, Long-term
Federal Grants
Action M-11—Increase community capability for drought resilience by developing a water conservation plan
Hazards Mitigated: Drought
New&Existing 1,2,5,6,8 City of Meridian N/A Low Staff Time,Grants Short-term
6-12 TETRA TECH
2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
SupportBenefits New or Estimated
Existing Assets I Objectives Met � Lead Agency I
Action M-12—Increase community capability for mitigating landslide risk by developing hillside grading/drainage policies that provide
adequate protections in steep topography.
Hazards Mitigated: Landslide, Flood
New 2,4,5 City of Meridian N/A Low Staff Time Long-term
Action M-13—Construct Ninemile Creek Flood Mitigation Project as designed to eliminate flood risk to people,property and critical
lifelines.The proposed improvements include constructing storm drain infrastructure and pipeline from Story Park to the outlet into the
existing Ninemile Creek Channel north of the Union Pacific Railroad tracks.(Coordinates with the Meridian Development Corporations
Action MDC-4.)
Hazards Mitigated: Flood
Existing 1,3,9, 10 City of Meridian MDC $4.5 Million HMGP, BRIC, MDC, Short-term
FMA
Action M-14—Partner with ACHD to facilitate the replacement of roadway culverts to include design and construction of crossings on
Fivemile, Ninemile, Eightmile and Tenmile Creeks.(Coordinates with Ada County Highway District Action ACHD-5)
Hazards Mitigated: Flood, Extreme Weather
Existing 1,3,9, 10 ACHD City of Meridian High ACHD,General Funds, Long-term
BRIC, FMA, HMGP
Action M-15—Continue to maintain/enhance the City's classification under the Community Rating System.
Hazards Mitigated: Flood
New&Existing 3,4,5,6,8 City of Meridian N/A Low Staff Time,General Ongoing
Funds, Enterprise Funds
Action M-16—Correct alignment issues on the National Flood Hazard Layer to correctly align with creek channels on Fivemile and
Tenmile Creeks to more accurately reflect flood risk.
Hazards Mitigated: Flood
New&Existing 2,9 City of Meridian FEMA Low General Funds, Long-Term
Enterprise Funds,
Federal Grants
Action M-17—Conduct detailed hydraulic analysis on remaining FEMA Flood Zone A areas on Fivemile and Tenmile Creeks. Update
maps through LOMR to accurately reflect flood risk.
Hazards Mitigated: Flood
New&Existing 2,9 City of Meridian FEMA Low General Funds, Long-Term
Enterprise Funds,
Federal Grants
Action M-18—Whenever possible,coordinate with local experts and employ natural environmental processes in mitigation activities that
increase ecosystem resilience and reduce the impacts of flooding on the built environment
Hazards Mitigated: Flood
New&Existing 2,5,9 City of Meridian N/A Medium General Funds,BRIC, Long-Term
FMA, HMGP
Action M-19—Support County-wide initiatives identified in Volume 1.
Hazards Mitigated: All hazards
New&Existing All City of Meridian EMCR Low Staff Time, General Short-term
Funds
a. Short-term=Completion within 5 years; Long-term=Completion within 10 years;Ongoing=Continuing new or existing program with
no completion date
Acronyms used here are defined at the beginning of this volume.
TETRA TECH
6-13
2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
Table 6-14. Mitigation Action Priority
D. Benefits Is Project Can Project Be Funded Grant
Objectives
Eligible?Action# Met Benefits 1 Costs Exceed Cost? .. Budgets?
1 3 High High Yes Yes No Medium High
Medium Low Yes No I Yes I High Low
3 3 Low Low Yes j No I Yes j High Low
4 6 Medium ow es o I Yes I Hi h ow
5 7 Medium ' Low Yes I No I Yes j High Medium
6 3 High Medium Yes Yes No Medium High
7 5 Low Low Yes No Yes Medium Low
8 5 Low Low Yes No Yes Medium Low
9 5 Medium Medium Yes Yes No Medium High
10 3 Hi h H' o Medium
11 5 Medium Low Yes Yes Yes Medium Low
12 3 Medium Low Yes No Yes Medium Low
13 4 High Hi h Yes Yes No High High_
14 4 High High Yes Yes No Medium Medium
15 5 Medium Low Yes No Yes High_ Low_
16 2 Medium Low Yes Yes No Medium Medium
17 2 High Medium_ Yes Yes No Medium Medium
18 3 High Medium Yes Yes o Medium Medium
19 10 Low Low Yes No Yes High Low
a. See the introduction to this volume for explanation of priorities.
Table 6-15.Analysis of Mitigation Actions
Hazard,Action Addressing btmiqatlon Typea
Community
Property Structural Climate Capacity
LHazard Type Prevention Protection Projects Resilience Buildingb
High-Risk Hazards
Extreme Weather M-2 M-1 M-5 M-6 M-14 M-5 M-3,5, 19
Medium-Risk Hazards
Flood , M-2,4, 12, M-1 M-4,5,9 M-18 M-6 M-13, 14 M-5, 18 M-3,4, 5,9, 12,
15, 16, 17 15, 16, 17, 18, 19
Earthquake M-2 M-1 M-6 M-3, 19
Low-Risk Hazards
_Drought M-2, 11 M-5 M-10 M-10 M-5 M-3,5, 10, 11, 19
Dam/Canal M-2 M-1 M-9 M-10 M-10 M-3,9, 10, 19
Failure
Landslide M-2, 12 M-1 M-3, 12, 19
Volcano M-3, 19
Wildfire M-2 I M-1 M-5,7,8 I M-5 I M-3,5,8, 19
a. See the introduction to this volume for explanation of mitigation types.
b. In addition to the community capacity building actions listed in this table,this jurisdiction is expanding its financial capabilities through
its participation in and adoption of this hazard mitigation plan,which establishes grant-funding eligibility.
6-14 TETRA TECH
2022 Ada County Multi-Hazard Mitigation Plan City of Meridian
6.9 PUBLIC OUTREACH
Table 6-16 lists public outreach activities for this jurisdiction.
Table 6-16. Local Public Outreach
PeopleNumber of
Local Outreach Activity Date Involved
Social Media share of Ada County survey posts 12/8/2021 unknown
Meridian Public Works Week—Floodplain Booth HMP information 6/8/2022 unknown
6.10 INFORMATION SOURCES USED FOR THIS ANNEX
The following technical reports,plans, and regulatory mechanisms were reviewed to provide information for this
annex.
• 2017 Ada County Multi-Hazard Mitigation Plan—The previous HMP was reviewed to update this
annex.
• City of Meridian Municipal Code—The municipal code was reviewed for the full capability assessment
and for identifying opportunities for action plan integration.
• City of Meridian Flood Damage Prevention Ordinance—The flood damage prevention ordinance was
reviewed for compliance with the National Flood Insurance Program.
The following outside resources and references were reviewed:
• Hazard Mitigation Plan Annex Development Toolkit—The toolkit was used to support the
identification of past hazard events and noted vulnerabilities,the risk ranking, and the development of the
mitigation action plan.
TETRA TECH 6-15
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VI (Strong/Light) Interstate — — —L
VII (Very Strong/Moderate) Major Roads KUNA
VIII (Severe/Moderate-Heavy) Rail
— IX(Violent/Heavy) Waterbody
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(perceived shaking/potential damage) Esri,USGS,NOAA
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2022 Ada County
Multi-Hazard Mitigation Plan Mult*ImHazard
Adoption Draft�September 2022
Meiteigiation
Olume 1
Countywide Elements
0� 7
,I f)Y 4
TETRA TECH
Disaster Mitigation Act of 2000 TETRA TECH
Federal legislation that establishes requirements for Hazard Mitigation Grant Program.
• Specific required Hazard Mitigation Plan elements:
o Risk assessment
o Public outreach and participation
o Process for update
o Formal Idaho Office of Emergency Management (IOEM) and FEMA review
Ada County Multi-Hazard Mitigation Plan OTETRA TECH
Volume 1 (468 pages) Volume 2 (428 pages, Meridian 24 pages)
• Part 1 — Planning Process & • Planning Partner Annexes —
County Profile contains profiles and action items
• Part 2 — Risk Assessment
• Part 3 — Mitigation Strategy Adopt Meridian Annex and
Appendices in resolution
Adopt volume in resolution
wqpp- E
Hazards Included in the Ada County MHMP TETRA TECH
Hazards of Concern Hazards of Interest
• Dam/canal failure • Civil disturbance and terrorism
• Drought • Cyber disruption
• Earthquake • Hazardous materials release
• Extreme weather • Public health emergency/pandemic
• Flood • Radiological event
• Landslide • Utility failure
• Volcano (ash fall)
• Wildfire
Climate is not assessed as an individual hazard,
but a profile is provided describing how future
climate conditions could affect the hazards of
concern assessed in this plan.
0
Ada County Planning Partners O TETRA TECH
Districts
Special -Purpose Municipalities
• Ada County (Unincorporated Areas) • Ada County Highway District
• Eagle Fire District
• City of Boise . Eagle Sewer District
• City of Eagle • Eagle Urban Renewal Agency
• City of Garden City • Flood Control District #10
• City of Kuna • Greater Boise Auditorium District
• City of Meridian . Independent School District of Boise
• City of Star • Joint School District #2
. Kuna Rural Fire Protection District
. Meridian Development Corporation
. North Ada County Fire and Rescue
. Star Joint Fire Protection District
Star Sewer District
0 Whitney Fire Protection District
Status and What's Next O TETRA TECH
• Meridian Hazard Mitigation Planning Team included : Public Works, Planning and
Fire
• IOEM and FEMA approved the Ada County Multi-Hazard Mitigation Plan in
September 2022
• Adopt Volume land City of Meridian annex in Volume 2 through Resolution
• Remain eligible for FEMA grants including active Ninemile Creek application
WNPPIPV 0