Sacramento City Council
August 15, 2023

City of Sacramento
City Council - 5PM Report
915 I Street Sacramento, CA 95814
www.cityofsacramento.org
File ID: 2023-00935 8/15/2023 Consent Item 2.

Adoption of Repetitive Loss Area Analysis and Program for Public Information File ID: 2023-00935
Location: Citywide
Recommendation: Adopt a Resolution: adopting the updated City of Sacramento Repetitive Loss Area Analysis (RLAA), Appendix D and the Program for Public Information (PPI), Addendum 1 to the 2017 Comprehensive Flood Management Plan.

Contact: Jamie McKinley, Administrative Analyst, (916) 808-5693, [email protected]; Neal Joyce, Supervising Engineer (916) 808-1912, [email protected]; Sherill Huun, Engineering & Water Resources Division Manager; (916) 808-1455, [email protected]; Pravani Vandeyar, Director, (916) 808-3765, [email protected]; Department of Utilities
Presenter: None.

Attachments:
1-Description/Analysis
2-Repetitive Loss Area Analysis, Appendix D
3-Program for Public Information, Addendum 1
4-Resolution
Description/Analysis
Issue Detail: Staff recommends Council adopt both Appendix D. Repetitive Loss Area Analysis (RLAA) and Addendum 1. Program for Public Information (PPI) to the City of Sacramento’s Comprehensive Flood Management Plan (CFMP). Both are programs which provide credit toward the National Flood Insurance Program’s (NFIP) Community Rating System (CRS).

The RLAA is a detailed mitigation analysis and plan for repetitive loss areas throughout the City where repetitive loss properties are located. Repetitive loss properties are National Flood Insurance Program (NFIP) insured structures that have had at least two paid flood loses of more than $1,000 each in any 10-year period since 1978.

The PPI is an ongoing effort to prepare, implement and monitor a range of public information

File ID: 2023-00935 8/15/2023 Consent Item 2.
activities best suited for the City’s flood problems. The program provides information that is designed to meet local needs and is monitored, evaluated, and revised to improve its effectiveness.

The CFMP, which includes the RLAA and the PPI, established a strategic, comprehensive management approach to reducing flood risk through the implementation of seven risk reduction tools. The tools include land use planning, emergency management, levee and other structural improvements, internal drainage improvements, a program for public information, NFIP CRS Program and levee security. The RLAA and PPI updates are components of the NFIP and CRS program and help mitigate flood risk to the city’s residents.

Policy Considerations: The report’s recommendation is consistent with the City’s 2035 General Plan committed to the protection of life and property from the risk of natural and man-made hazards.

Economic Impacts: None.

Environmental Considerations: Adoption of the RLAA and the PPI is exempt from the California Environmental Quality Act (CEQA) because general policy and procedure making of this nature does not constitute a “project” [CEQA Guidelines Section 15378(b)(2)] and is not subject to CEQA [CEQA Guidelines Section 15060(c)(3)].

Sustainability: The RLAA and PPI is consistent with the City’s 2035 General Plan goals to reduce flood risk and participate in NFIP’s CRS Program.

Commission/Committee Action: Not applicable.

Rationale for Recommendation: The City is susceptible to various types of flood events:
riverine, flash, and localized stormwater flooding; and levee and dam failure flooding. Flooding is the most significant natural hazard that the City faces. To address this complex hazard a comprehensive flood management plan, an annual RLAA and PPI update is necessary to quantify the flood risk reduction specific to each of the reduction tools, and to demonstrate that by using all of the tools together, flood risk can be reduced for the City.

Adoption of the RLAA and PPI will also improve the City’s CRS Program, which provides discounted flood insurance rates to City residents, businesses, and renters.

Financial Considerations: None.

Local Business Enterprise (LBE): Not Applicable.

Background: The Comprehensive Flood Management Plan (CFMP) establishes a strategic, comprehensive management approach to reducing flood risk through the implementation of reduction

File ID: 2023-00935 8/15/2023 Consent Item 2.
tools utilized by the City. The Repetitive Loss Area Analysis (RLAA) and the Program for Public information (PPI) are components of the CFMP. The RLAA has been updated to include mitigation measures and new repetitive loss areas. The PPI has been updated with current committee members, committee assessments and recommendations on outreach and flood response projects, as well as NFIP policy and claims data.

The RLAA requires five steps for an area analysis including 1) advising all properties in the repetitive loss area that an analysis is being conducted and request their input, 2) contacting agencies that may have plans or studies that could affect the cause or impacts of flooding, 3) visit each building and collect basic data, 4) review alternative approaches and determine whether any property protection measures or drainage improvements are feasible, and 5) document the findings and analyze each of the repetitive loss buildings and their areas.

The City is updating the RLAA and PPI to improve its CRS program. The CRS program is a voluntary incentive-based program that recognizes and encourages communities to exceed the FEMA minimum floodplain management standards and rewards communities with discounted flood insurance premiums. The City is currently a Class 3 resulting in discounted flood insurance premiums of up to 35 percent for City residents, renters, and businesses, which is a savings of about $1.5 million annually. The RLAA will provide the City with additional CRS credits enabling the City to retain or improve its current CRS rating.

9635 Granite Ridge Drive, Suite 300 | San Diego, CA 92123 Office: 858.614.5000 | Fax: 858.614.5001
Contact: ENTER NAME AND [email protected]

JN XXXXX

REPETITIVE LOSS AREA ANALYSIS
Comprehensive Floodplain Management Plan
Prepared for:

July 2023
3100 Zinfandel Drive, Suite 125 | Rancho Cordova, CA 95670 Office: 916-361.8384 | Fax:916.361.1571

Table of Contents
Repetitive Loss Analysis ................................................................................................................................................. 1

1. Step 1. Advise all Property Owners ....................................................................................................................... 2

1.1. Mailed Questionnaire and Online Survey ..................................................................................................... 2

2. Step 2. Contact Agencies and Organizations ........................................................................................................ 8

2.1. Summary of Studies and Reports ................................................................................................................. 8

3. Step 3. Building Data Collection .......................................................................................................................... 13

4. Step 4. Review Alternative Approaches .............................................................................................................. 14

4.1. Preventive ................................................................................................................................................... 15

4.2. Property Protection .................................................................................................................................... 16

4.2.1. Flood Insurance ................................................................................................................................. 17

4.2.2. Dry Flood-Proofing ............................................................................................................................ 17

4.2.3. Wet Flood-Proofing ........................................................................................................................... 18

4.2.4. Direct Drainage Away from the Building ........................................................................................... 18

4.2.5. Drainage Maintenance ...................................................................................................................... 18

4.2.6. Sewer Improvements ........................................................................................................................ 19

4.2.7. Barriers .............................................................................................................................................. 19

4.3. Natural Resource Protection ...................................................................................................................... 20

4.4. Emergency Services .................................................................................................................................... 20

4.5. Structural Projects ...................................................................................................................................... 21

4.6. Public Information and Outreach ............................................................................................................... 21

5. Step 5. Analysis of Individual Repetitive Loss Areas ........................................................................................... 23

5.1. Region 1 – South Natomas ......................................................................................................................... 23

5.2. Region 2 – Downtown East ........................................................................................................................ 30

5.3. Region 3 – Downtown West ....................................................................................................................... 36

5.4. Region 4 – Southeast Sacramento ............................................................................................................. 47

5.5. Region 5 – Sutterville/Meadowview .......................................................................................................... 52

5.6. Region 6 – Arcade Creek............................................................................................................................. 61

6. Repetitive Loss Area Analysis Summary ............................................................................................................. 68

6.1. Current Mitigation Projects ........................................................................................................................ 68

6.1.1. Capital Improvements Plan Drainage Improvements ....................................................................... 68

6.1.2. Acquisition and Demolition ............................................................................................................... 68

6.1.3. Advantages and Disadvantages of Mitigation Measures .................................................................. 68

7. Conclusion and Recommendations..................................................................................................................... 69

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Repetitive Loss Analysis
On May 3, 2016, the City of Sacramento’s Repetitive Loss Area Analysis (RLAA) was adopted by City Council as part of the City of Sacramento’s Comprehensive Flood Management Plan (CFMP).

Since its initial adoption, additional investigations have b een performed in the City’s repetitive loss areas. This report reflects all current and past findings.

The City of Sacramento is using the ISO repetitive loss list and AW -501s dated December 2021 , and a follow -up list dated December 2022 as the basis for this RLAA. This is the last officially sanctioned Community Rating System (CRS) repetitive loss data set issued to the City. According to the list , the City of Sacramento has 59 repetitive loss properties ; 23 are mitigated, 23 are unmitigated, and 13 are misidentified and are pending removal. See Attachment 1 for details of the Repetitive Loss List. Area analyses are not required to be completed for mitigated properties.

Four properties have been added to the list since the 2016 analysis that are analyzed herein. These are Region 3-Area 12 and Region 6-Areas 19 and 20.

The City is seeking mitigated status approval for one property; this property is included in the area analyses provided in this RLAA.

Repetitive Loss Area Analysis Process
The RLAA planning process incorporated requirements from Section 510 of the 2017 CRS Coordinator’s Manual. The planning process also incorporated requirements from the following guidance documents:
• Federal Emergency Management Agency (FEMA) publication Reducing Damage from Localized Flooding: A Guide for Communities, Part III Chapter 7; • CRS publication Mapping Repetitive Loss Areas dated August 15, 2008; and • Center for Hazards Assessmen t Response and Technology, University of New Orleans draft publication The Guidebook to Conducting Repetitive Loss Area Analyses.

Most specifically, this RLAA included all five planning steps included in the 2017 CRS Coordinator’s Manual:

Step 1. Advise all properties in the repetitive loss areas that the analysis will be conducted and request their input on the hazard and recommendation actions.

Step 2. Contact agencies or organizations that may have plans or studies that could affect the cause or impacts of the flooding. The agencies and organizations must be identified in the analysis report.

Step 3. Visit each building and collect basic data.

Step 4. Review alternative approaches and determine whether any property protection measures or drainage improvements are feasible.

Step 5. Document the findings. A separate analysis report must be prepared for each area.

Beyond the five planning steps, additional credit criteria must be met:
• The community must have at least one repetitive loss area delineated in accordance with the criteria in Section 503.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

• The repetitive loss area must be mapped as described in Section 503.a. A Category “C” community must prepare analyses for all of its repetitive loss areas if it wants to use the RLAA to meet its repetitive loss planning prerequisite. • The RLAA report(s) must be submitted to the community’s governing body and made available to the media and the public. The complete RLAA report(s) must be adopted by the community’s governing body or by an office that has been delegated approval authority by the community’s governing body.
• The community must prepare an annual progress report for its area analysis. • The community must update its RLAA in time for each CRS cycle verification visit.

The majority of the repetitive loss area s experience the same cause of flooding, that of local drainage problems ; however, each region has unique characteristic s that impact the property protection measures that are most effective in promoting flood protection. Therefore, data collected and analyzed in steps three, four, and five have been organized by region.

1. Step 1. Advise all Property Owners
RLAA Step 1 (2017 CRS Coordinator’s Manual Section 512.b) requires notification that an analysis is being conducted to all properties in the repetitive loss areas, with a request for input on the hazard and recommended actions. The City of Sacramento sends an annual notice to all repetitive loss area properties with information on the potential flood hazard and recommended mitigation activities.

Before fieldwork began on the current RLAA, individual letters were mailed to property owners within all six repetitive loss areas (Figure 1). Letters were mailed to all properties within each area, including repetitive loss properties, and additional properties with similar flooding conditions but which have no known claims paid against the NFIP. In total, 438 notification letters were mailed to property owners. The letters were sent out on January 17, 2023. Copies of the addresses are maintained on file with the City of Sacramento, Department of Utilities. In accordance with the privacy act of 1974, the letters will not be shared with the general public.

For this process, the City also developed a questionnaire (Figure 2), which allowed homeowners to share important information about flooding in their neighborhoods. The questionnaire included an explanation of what a repetitive loss area was, and requested historical information on the properties’ flood history.

Prior to the field visit, a second targeted outreach letter and questionnaire were mailed in March 2023. This mailing included properties recently added to the City’s repetitive loss list. A copy of this targeted letter is included as Figure 3.

1.1. Mailed Questionnaire and Online Survey
The questionnaire was included with each letter mailed to building owners, and was also available online, through an online link as well as a QR c ode. The questionnaire asks about the type of foundation and if the building has a basement, if the building has experienced any ty pe of flooding, the cause of the flooding, flood protection measures and whether the owner has flood CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

insurance. A copy of the entire mailing, including the property notification letter, survey, and “Protect Your Home from Flooding” FEMA brochure, is included in Attachment 2.

Of the 438 mailed notification letters and questionnaires, the City of Sacramento received 14 responses. A compilation of the responses can be found in Attachment 4.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

FIGURE 1. EXAMP LE RLAA PROPERTY NOTIFICATION LETTER (JANUARY MAILING)

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

FIGURE 2. QUESTIONNAIRE SENT WITH MAILING, AND AVAILABLE ONLINE

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

FIGURE 3. TARGETED PROPERTY NOTIFICATION LETTER MAILED IN ADVANCE OF FIELD VISIT (MARCH MAILING)

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

2. Step 2. Contact Agencies and Organizations
The City reached out to external agencies and internal departments to access plans and studies that could affect or help determine the cause s or impacts of flooding within the repetitive loss area. The following reports could help determine future problems and potentially assist in mitigation measures for the property owners.
• City of Sacramento
o Comprehensive Flood Management Plan
o Sacramento Rescue and Flood Evacuation Maps: Levee & Folsom Dam Breach o Capital Improvement Plan and Utilities Drainage Master Plans o Urban Design Guidelines
o Historical flood data
• County of Sacramento
o Sacramento County Local Hazard Mitigation Plan
• California Department of Water Resources (DWR)
o FloodSAFE
o Levee Flood Protection Zone Map (LFPZ)
o Best Available Maps
o California Data Exchange Center (CDEC)
• Sacramento Area Flood Control Agency (SAFCA)
• US Army Corps of Engineers
o Sacramento District Levee Systems Inspection Status
• FEMA
o Repetitive Loss & Flood Insurance Claims Data
o FEMA Flood Insurance Studies/Flood Insurance Rate Maps o NFIP Coordinators Manual
• National Oceanic and Atmospheric Administration California Nevada River Forecast Center • GEI Consultants, Inc.
o Technical Memorandum: Repetitive Flood Loss Investigation

2.1. Summary of Studies and Reports

City of Sacramento Comprehensive Flood Management Plan
The purpose of this plan is to identify, assess, and mitigate flood hazards and flood risk in the City using nonstructural and structural measures. This plan analyzes improving floodplain management through land use planning and development, levee security, outreach, internal drainage, structural measures, and emergency management. The plan also develops strategies and action items on how the City will mitigate flood hazards and vulnerabilities.

Sacramento Rescue and Evacuation Maps
The maps show the results of hypothetical levee and dam failures at different locations within the City and County of Sacramento for the 100-year and 200-year flood events. The maps show evacuation routes and water depths over time.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

City of Sacramento Proposed Capital Improvement Program, 2023- 2028 The 2023-2028 Capital Improvement Plan is a five-year plan for the funding and construction or repair of City buildings and facilities such as streets, roads, storm drains, traffic signals, parks, and community centers. The total planned Capital Improvemen t Plan budget for fiscal year s 2023-2028 is $465 million.

The FY2023/24 budget for the City Utilities Program totals $47.3 million for 37 projects or programs. The five-year plan totals $235.7 million for 42 projects or programs. A total of $9 million is designated for storm drainage projects.

Sacramento County Local Hazard Mitigation Plan
The purpose of hazard mitigation is to reduce or eliminate long -term risk to people and property from hazards. The communities within Sacramento County developed this Local Hazard Mitigation Plan (LHMP) update to make its residents less vulnerable to future hazard events. This plan was prepared pursuant to the requirements of the Disaster Mitigation Act of 2000 so that Sacramento County would be eligible for FEMA’s Pre-Disaster Mitigation and Hazard Mitigation Grant programs.

The communities followed a planning process prescribed by FEMA, which began with the formation of a hazard mitigation planning committee comprising key representatives and other regional stakeholders.

The committee conducted a risk assessment that identified and profiled hazards that pose a risk within the County, assessed the County’s vulnerability to these hazards, and examined the capabilities in place to mitigate them. The County is vulnerable to several hazards that are identified, profiled, and analyzed in this plan. Floods, levee failures, wildfires, and severe weather are among the hazards that can have a significant impact on the County.

The 2021 LHMP u pdate serves to update the 2016 FEMA approved Sacramento County LHMP. Annex F details the hazard mitigation planning elements specific to the City of Sacramento. The Comprehensive Flood Management Plan and RLAA from 2016 are those most recently used for reference.

FloodSAFE, Levee Flood Protection Zone Map, and Best Available Maps The FloodSAFE program is a sustainable integrated flood management and emergency response system throughout California where steps are taken to manage flood risk. Multiple types of maps have been prepared as part of this program. LFPZ maps were prepared for the Lower Sacramento Valley Region as part of the FloodSAFE initiative. The LFPZ maps identify the areas that are protected by a project levee.

The LFPZ maps are also used as part of the DWR’s levee risk notification program. The DWR has the Best Available Maps to display the latest floodplains in a web viewer located at http://gis.bam.water.ca.gov/bam. With this viewer, the DWR has expanded the floodplains to cover all counties in the State and to include 500-year floodplains. The 100-, 200-, and 500-year floodplains can be selected for display using this viewer. The web viewer allows users to view a particular area, identify their potential flood hazards, and print a floodplain map.

Sacramento District Levee S ystems Inspection Status
The levee inspections show any unacceptable items within the levees that may have affected the repetitive loss area properties in the past and future projects. These unacceptable items include items CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

such as encroachments, slope stability issues, animal burrowing, and erosion. The State of California also provides levee inspection reports.

California Data Exchange Center
The CDEC installs, maintains, and operates an extensive hydrologic data collection network, including automatic precipitation and river st age sensors for the flood forecasting program through a centralized location online. The CDEC stores and processed real- time hydrologic information gathered by various cooperators throughout the State; it then disseminates this information to support forecasting and flood operations activities and to meet the data reporting needs of various cooperators, public and private agencies, the news media, and the public.

The CDEC includes the ALERT gauges maintained by the City and County of Sacramento. ALERT is an acronym which stands for Automated Local Evaluation in Real Time. The Sacramento City and County's ALERT system consists of two base stations and approximately 50 gauging stations.

FEMA Flood Insurance Studies (FIS)
FEMA’s FIS for the City of Sacramento are dated August 16, 2012, and June 16, 2015. The FIS revises and updates information on the existence and severity of flood hazards within the City. The FIS also includes part of the revised digital Flood Insurance Rate Maps (FIRMs) , which delineate updated Special Flood Hazard Areas and flood zones for the City.

In 2022, FIS Number 06067CV001E was developed that affected Sacramento County (CID 060262) and Citrus Heights (CID 060765). FEMA is revising the FIRMs and FIS for Arcade Creek in Sacramento County.

The revision will enlarge the floodplain and increase the 100 -year flood elevations by up to more than 2 feet. A number of properties in the County of Sacramento are being added to the floodplain for the first time and property owners may be required to o btain flood insurance by their mortgage companies. The 100-year flood elevations will also increase for properties already in the floodplain and these properties may see the cost of flood insurance increase . It is expected that the revised FIRM will become effective sometime in mid-2023.

Repetitive Loss and Flood Insurance Claims Data
The data received on the r epetitive loss file such as the date(s), amount(s), and frequency of past flood insurance claims was used to analyze the cause of flooding. The Privacy Act of 1974 (5 U.S Code 522a) restricts the release of flood insurance policy and claims data to the public. This information can only be released to state and local governments for the use in floodplain management related activities.

Therefore, all claims data in this report are only discussed in general terms, but the data was used internally.

California Nevada River Forecast Center
The California Nevada River Forecast Center provides weather, water, and climate data. The City of Sacramento utilized this source to help in the analysis and explanation of claims that occurred during heavy precipitation events.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Technic al Memorandum: Repetitive Flood Loss Investigation GEI Consultants and Michael Baker International provided assistance to the City of Sacramento, Department of Utilities in determining why seven repetitive loss areas flooded. Site visits, investigations and review of the local drainage system and the topographic/field survey contributed in determining the proposed mitigation efforts for each property. These analyses are included herein in Step 5. Analysis of Individual Repetitive Loss Areas.

Regional Reports
Many methods were utilized to collect data for the RLAA. During field investigation work for the 2016 RLAA, while delivering flood protection questionnaires, staff conducted field surveys for all structures in the 18 repetitive loss areas. Elevation data was collected from the Sacramento County Assessor’s Office, as well as through some on-site surveying. Staff reviewed all available Drainage Master Plans for the affected areas. These studies provided drainage capacity information and potential mitigation strategies.

Flood management plans were analyzed to help determine the community’s current mitigation activities and provided hazard informatio n. Lastly, past insurance claim information was analyzed for each repetitive loss area to identify patterns in flooding issues.

The repetitive loss properties are vastly spread throughout the City of Sacramento. The majority of the structures flooded durin g the winter storms of 1995 and 1997 due to undersize d drainage conveyance systems, power outages at the pump stations, and low- lying properties within their respective neighborhood. For reporting purposes, the 2 3 repetitive loss properties have been categ orized into six regions which are then broken down into individually selected areas/neighborhoods where the properties are located. At no point is the repetitive loss property specifically identified in this report. All structures within a repetitive loss area are susceptible to the same flooding conditions; however, they may not have experienced flood losses.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Table 1 details the percentage of each repetitive loss ar ea that falls within the 100 -year, 500-year or Unshaded Zone-X flood zone, while Table 2 details the number of properties in each flood zone.

TABLE 1 . PERCENTAGE OF REPETITIVE LOSS PROPERTIES IN EACH FLOOD ZONE RL Area Zone AE
100-yr
Zone X
Unshaded
Zone X
(Levee)
Zone
A99 Shaded X
1 33% 67%
2 100%
3 17% 83%
4 100%
5 100%
6 33% 33% 33%

TABLE 2. NUMBER OF RL PROPERTIES BY FLOOD ZONE (TOTAL 23) RL Area
Zone
AE
100-yr
Zone X
Unshaded
Zone X
(Levee)
Zone
A99 Shaded X
1 1 2
2 2
3 1 5
4 1
5 8
6 1 1 1

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

3. Step 3. Building Data Collection
The on-site field survey for the current analysis was conducted March 16 and 17, 2023. In addition to building-specific data collection, multiple photographs were taken of each structure on the properties, to the extent the structures were visible from the street.1 Photos were taken of current drainage features and mitigation and flood -proofing measures if evident from street or parking lot views. The following information was recorded for each property:
• Existing mitigation observed
• Type and condition of the structure and foundation
• Number of stories
• Height above street grade and height above site grade • Presence and type of appurtenant structures
• Likely areas and severity of damage on property
• Presence of any HVAC units that would be vulnerable

Data was also gathered, when possible, through conversations with property owners/and or residents.

These conversations provided detail on the extent of flooding, potential cause of flooding, and recollections from past flood events, which help to understand flooding issues for these areas. Data was also incorporated from off-site research, including a review of FEMA FIRMs and the location of the repetitive loss areas in relation to FEMA flood zones.

TABLE 3. TYPE OF FLOODING AFFECTING RLAA PROPERTIES ADDED IN 2022 Region Area No. Properties Type of Flooding
3 12 1 Localized/Stormwater Flooding
6 19 2 Overbank Flooding
6 20 1 Localized/Stormwater Flooding

Many of the properties are located outside of a Special Flood Hazard Area. This is consistent with the majority of the City of Sacramento classified as an X Zone whether it is due to minimal flood hazard or reduced risk due to levees. Exceptions include Region 1 where the area is classified mostly as an A99 Zone, with only a small fraction listed as an AE Zone. The AE Zone is found on the Garden Highway, which runs along the Sacramento River where a small amount of development was built on the waterside of the levee. Another localized AE Zone is along Arcade Creek. Based on this information, traditional flood zones are not a contributing factor in determining repetitive loss areas within the City. It also reinforces the findings that many of the repetitive loss areas are affected by on-site grading and draining issues during heavy, long duration storms.

1 Some structures were not visible due to fences around the entire structure or trees.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

4. Step 4. Review Alternative Approaches
Although this report presents separate analyses for each identified repetitive loss area in the City of Sacramento, the list of potential measures to address repetitive flooding problems is similar for each area.

This chapter summarizes the alternatives th at were identified for consideration. These alternatives can be implemented by the City, the homeowner, or other entities. The selection of suitable alternatives for each at-risk property in the repetitive loss areas is described in the chapters presenting individual RLAAs.

Many types of flood hazard mitigation exist, and there is no single mitigation measure that fits every case or even most cases. Successful mitigation often requires multiple strategies. The 2017 CRS Coordinator’s Manual breaks the primary types of mitigation down as follows:

Preventive activities keep flood problems from getting worse. The use and development of flood- prone areas are limited through planning, land acquisition, or regulation. The se activities are usually administered by building, zoning, planning, and/or code enforcement offices.

Property protection activities are usually undertaken by property owners on a building- by- building or parcel basis.

Natural resource protection activities preserve or restore natural areas or the natural functions of floodplain and watershed areas. The se activities are implemented by a variety of agencies, primarily parks, recreation, or conservation agencies or organizations.

Emergency services are measures taken dur ing an emergency to minimize its impact. These measures are usually the responsibility of city or county emergency management staff and the owners or operators of major or critical facilities.

Structural projects keep floodwaters away from an area with a l evee, reservoir, or other flood control measure. They are usually designed by engineers and managed or maintained by public works staff.

Public information and outreach activities advise property owners, potential property owners, and visitors about hazards and ways to protect people and property from them, as well as the natural and beneficial functions of local floodplains. They are usually implemented by a public information office.

TABLE 4. STRUCTURAL AND NONSTRUCTURAL POTENTIAL MITIGATION MEASURES Structural Alternatives Nonstructural Alternatives
Dry flood-proofing. Commercial structures and even residential structures are eligible for dry flood -proofing; however, in many instances this requires human intervention to complete the measure and ensure success. For example, installing watertight shields over doors or windows requires timely action by the homeowner, especially in a heavy rainfall event.

Provide public education through posting
information about local flood hazards on City
websites, posting signs at various locations in
neighborhoods or discussing flood protection
measures at local neighborhood association
meetings.

Wet flood -proofing. Wet flood -proofing a structure involves making the uninhabited portions o f the structure resistant to flood damage and allowing water to enter during flooding. For example, in a basement or crawl space, mechanical equipment and ductwork would not be damaged.

Implement volume control and runoff reduction
measures in the City's Stormwater Management
Ordinance.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Structural Alternatives Nonstructural Alternatives
For basements, especially with combined storm sewer and sewer systems, backflow preventer valves can prevent storm water and sewer from entering crawl spaces and basements.

Relocate internal supplies, products/goods
above the flooding depth.

Acquire and/or relocate properties/target abandoned
properties.

Promote the purchase of flood insurance.

Elevate structures and damage -prone components, such as the furnace or air conditioning unit, above the base flood elevation .

Continue to enforce the City's floodplain and
zoning ordinances.

Construct engineered structural barriers, berms, and floodwalls (Note: Assuming lot has required space for a structural addition).

Increase road elevations above the base flood elevation of the 100-year floodplain.

Implement drainage improvements such as increasing capacity in the system (up -sizing pipes), provid ing additional inlets or larger inlets to receive more stormwater, or constructing detention basins where space allows.

Promote stormwater system maintenance program to ensure inlets and channels are free of clogging debris.

4.1. Preventive
The City of Sacramento regulates residential and commercial development through its building code, planning and zoning requirements, stormwater management regulations and floodplain management ordinances. The City of Sacramento has adopted building codes and procedures designed to protect lives and property in the event of a 100 -year flood. Specific floodplain management regulations and building codes are enforced to regulate construction in at -risk areas throughout the city. Construction certificate and hold harmless agreement requirements for each flood zone are shown in Table 5.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

TABLE 5. CITY OF SACRAMENTO CONSTRUCTION REQUIREMENTS FOR FLOOD ZONES

4.2. Property Protection
Property protection is essential to mitigating repetitive loss properties and reducing future flood losses.

There are many ways to protect a property from flood damage. Property protection measures recognized in the 2017 CRS Coordinator’s Manual include relocation, acquisition, building elevation, retrofitting, sewer backup protection, and insurance. Different measures are appropriate for different flood hazards, building types and building conditions.

Table 6 lists typical property protection measures.

TABLE 6. TYP ICAL PRIVATE PROPERTY PROTECTION MEAS URES Demolish the building or relocate it out of harm’s way.

Elevate the building above the flood level.

Elevate damage-prone components, such as the furnace or air conditioning unit.

Dry flood-proof the building so water cannot get into it.

Wet flood-proof portions of the building so water won’t cause damage.

Construct a berm or redirect drainage away from the building.

Maintain nearby streams, ditches, and storm drains so debris does not obstruct them.

Correct sewer backup problems.

Source: 2017 CRS Coordinators Manual.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

These measures are generally perform ed by property owners or their agents. FEMA has published numerous manuals that help a property owner determine which property protection measures are appropriate for particular situations.

4.2.1. Flood Insurance
Insurance is included as a property protection activity although it does not mitigate or prevent damage caused by a flood. However, flood insurance does help the owner repair and rebuild their property after a flood, and it can enable the owner to afford incorporating other property protection measures in that process. Flood insurance provides funding to repair flood-damaged property without the need to draw down savings and/or take on debt. As long as a policy is in force, insurance offers the advantage of protecting the property without requiring human intervention for the measure to work.

TABLE 7. ADVANTAGES AND DIS ADVANTAGES OF FLOOD INSURANCE Advantages Disadvantages
Provides protection outside of what is
covered by a homeowners’ insurance policy
Cost may be prohibitive
Can help to fund other property protection
measures after a flood through increased
cost of compliance coverage
Policyholders may have trouble
understanding policy and filing claims
Provides protection for both structure and
contents
Does not prevent or mitigate damage
Can be purchased anywhere in a
community, including outside of a flood
zone

4.2.2. Dry Flood-Proofing
Dry flood-proofing consists of completely sealing around the exterior of the building so that water cannot enter the building. Making the structure watertight involves sealing the walls with waterproof coatings, impermeable membranes, or a supplemental layer of masonry or concrete; installing watertight shields over windows and doors; and installing measures to prevent sewer backup. Due to the potential damage to a building as a result of hydrostatic pressure and/or hydrodynamic forces, dry flood -proofing is not a good option for areas where floodwater is deep or flows quickly. Dry flood-proofing can be a good option in areas that have minimal velocity and low depth.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

TABLE 8. ADVANTAGES AND DISADVANTAGES OF DRY FLOOD-PROOFING Advantages Disadvantages
Often less costly than other retrofitting
methods
Requires human intervention and adequate
warning to install protective measures
Does not require additional land Does not minimize the potential damage from high- velocity flood flow and wave action
May be funded by a FEMA mitigation grant
program
May not be aesthetically pleasing

4.2.3. Wet Flood-Proofing
Wet flood -proofing consists of modifying uninhabited portions of a home ( crawl space, garage, or unfinished basement) to allow floodwaters to enter or exit the structure without causing damage .

Openings must be large enough for the water to flow through the structure such that the elevation of the water in the structure is equal to the elevation of the water outside of the structure in order to prevent damage to structural walls as a result of hydrostatic pressure.

TABLE 9. ADVANTAGES AND DISADVANTAGES OF WET FLOOD-PROOFING Advantages Disadvantages
Often less costly than other mitigation
measures
Extensive cleanup may be necessary if the
structure becomes wet inside and possibly
contaminated by sewage, chemicals and other
materials borne by floodwaters
Allows internal and external hydrostatic
pressures to equalize, lessening the loads on
walls and floors
Pumping floodwaters out of a basement too soon
after a flood may lead to structural damage

Does not minimize the potential damage from a
high-velocity flood flow and wave action

4.2.4. Direct Drainage Away from the Building
Structures are sometimes built at the bottom of a hill or in a natural drainage way or storage area, such that water naturally flows toward them. Within zones AH, AO, and AR/AH, adequate drainage paths on slopes shall be required to guide floodwaters around and away from proposed structures. It may be necessary to regrade a yard if water flows toward the building; a new swale or wall can direct the flow to the street or a drainage way. Simple improvements can made on a property to keep floodwaters a way from a structure.

4.2.5. Drainage Maintenance
Internal drainage creates a considerable risk in the City for shallow flooding. Internal storm drainage creates flood issues for many buildings because of the flat nature of terrain and runoff which is pumped through levees to a creek or river. If drainage inlets are clogged or pump stations fail, there is a potential for damage to properties. Part of the problem can be attributed to a combined drainage and sanitary CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

sewer system. Over 7,500 acres of the City is subject to a combined system. City Code states that no person shall dump any materials in any water or waterway, or upon the levees or banks adjacent thereto.

Residents are encouraged to report drainage discharges at 916-808-5454.

TABLE 10. ADVANTAGES AND DIS ADVANTAGES OF DRAINAGE IMPROVEMENTS Advantages Disadvantages
Could increase channel carrying capacity through
overflow channels, channel straightening,
crossing replacements, or runoff volume storage
May help one area but create new problems
upstream or downstream
Minor projects may be fundable under FEMA
mitigation grant programs
Channel straightening increases the capacity to
accumulate and carry sediment
May require property owner cooperation and
right-of-way acquisition

4.2.6. Sewer Improvements
Heavy rains can saturate the soil and infiltrate the sanitary sewer system through leaky joints or cracks in the pipes. The inflow of stormwater floods the sanitary sewer system causing water to back up into the home through lower-level plumbing fixtures. This occurrence can be prevented by installing a sewer backflow preventer, which would allow the sanitary sewer water to flow freely from the home to the sewer, but restrict the reverse flow. Backflow preventers do require maintenance and can fail if debris in the sewer prevents the valve seating properly.

4.2.7. Barriers
Several types of temporary barriers are available to address typical flooding problems. They work to direct drainage away from structures with the same principles as permanent barriers such as floodwalls or levees, but can be removed, stored, and reused in subsequent flood events. Lower-cost solutions include sandbags, inflatable barriers, and barriers that self-activate with the pressure of the floodwaters. A flood protection barrier is usually an earthen levee/berm or a concrete retaining wall. While leve es and retaining walls can be large, spanning miles along a river, they can also be constructed on a much smaller scale to protect a single home or group of homes.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

TABLE 11. ADVANTAGES AND DIS ADVANTAGES OF BARRIERS
Advantages Disadvantages
Relative cost of mitigation is less expensive than
other alternatives
Property is still located within the floodplain and
has potential to be damaged by flood if barrier fails
or waters overtop it
No alterations to the actual structure or
foundation are required
Solution is only practical for flooding depths less
than 3 feet
Homeowners can typically construct their own
barriers that will complement the style and
functionality of their house and yard
Barriers cannot be used in areas with soils that
have high infiltration rates

The cost of constructing a barrier will depend on the type of barrier and the size required to provide adequate protection. An earthen berm will generally be less expensive compared to an equivalent concrete barrier primarily due to the cost of the materials. Another consideration is space; an earthen barrier requires a lot of additional width per height of structure compared to a concrete barrier to ensure proper stability. Key items to consider for barriers:

• There needs to be adequate room on the lot.
• A pump is required to remove water that either falls or seeps onto the protected side of the barrier.
• Human intervention will be required to sandbag or otherwise close any openings in the barrier during the entire flood event.

4.3. Natural Resource Protection
Care should be taken to maintain the streams, wetlands and other natural resources within a floodplain or repetitive loss area. Removing debris from streams and channels prevents obstructions. Preserving and restoring natural areas provides flood protection and natural habit, and preserves water quality.

4.4. Emergency Services
Emergency management is a critical risk reduction tool in the arsenal of any municipality. The role of city government in a disaster is to take all possible actions in order to protect life and property. To accomplish this task, the City has an aggressive emergency management system in place that includes comprehensive hazards planning. Utilities staff, City of Sacramento Office of Emergency Management, and the Sacramento Fire and Police departments work closely together to actively engage in the four phases of emergency management: preparedness/planning, response, recovery, and mitigation (or risk reduction).

These efforts are comprehensive in nature and cover an all- hazard approach, including emergencies involving flooding.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

The City also works closely with the Sacramento County’s Office of Emergency Services and the Sacramento Area Flood Control Agency during major flood events which impact both jurisdictions, demanding an integrated response prior to, during and following an emergency. This coordination provides consistent emergency management service to the Sacramento community.

4.5. Structural Projects
Structural projects keep floodwaters away from an area with a levee, reservoir, or other flood control measure. The majority of Sacramento is protected by dams and levees. While these dams and levees provide residents with excellent protection, they are still subject to failure and the City remains at risk of flooding.

The City of Sacramento is highly vulnerable to localized flooding. The City’s local drainage system services approximately 100 square miles and is handled by a combination of gravity and lift stations for a total of approximately 140 storm drainage basins. Since the City is typically lower than the elevated rivers by as much as 5 -25 feet, most of the local drainage must be pumped into the rivers. The City operates 105 sumps and pumps to keep the drainage pumped down. Detention basins have been planned and, in many areas, constructed to help mitigate flooding in the region.

Improving the stormwater drainage system and storage capacity throughout the City can eliminate some building damage and road closures in these areas. Similarly, improving drainage outfalls can re duce stormwater flooding from heavy rains. These structural methods require large capital expenditures and cooperation from private property owners. The City’s websites, social media, email distribution lists, press releases and variable message boards can help get these messages out to business owners and residents.

4.6. Public Information and Outreach
Over the years, the City of Sacramento, through many departments and in coordination with various stakeholder groups and outside agencies, has prepared multiple independent outreach messages to educate the public on the hazards associated with flooding. Sacramento developed a Program for Public Information (PPI) in an ongoing effort to prepare, implement, and monitor a range of public information activities best suited for a community’s flood problems. The objective of the PPI is to provide additional credit for information programs that are designed to meet local needs and that are monitored, evaluated, and revised to improve their effectiveness.

With advances in technology and a greater familiarity with web-based services, Sacramento has realized that mailing information directly to property owners may not be the most effective method. The PPI process now grants communities the ability to decide how to best deli ver messages to various groups throughout the City.

Social and economic factors were considered by the PPI Committee in ensuring that the right messages, tools and resources were used to reach all target audiences. The PPI Committee identified six target audiences who need special messages on flood protection:

Target Audience #1: Businesses, Homeowners, and Renters (entire City) Target Audience #2: School Children
Target Audience #3: Real Estate, Lending and Insurance Companies CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Target Audience #4: Vulnerable Populations (Special Needs, Elderly, etc.) Target Audience #5: Political Leaders
Target Audience #6: Language Barriers

In order to develop an effective local outreach program that raises public awareness about flood-related issues, the PPI identified the entire City of Sacramento as flood -prone, and for the entire City to be the target area for outreach within the community. The PPI Committee concluded that outreach projects should be directed to all properties (residential, commerc ial, and public). The entire City and all flood zones, including the X zone, are subject to flooding, and the PPI should strive to reach all residents and businesses within the City with a variety of messages for flood protection and flood safety.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

5. Step 5. Analysis of Individual Repetitive Loss Areas This section includes a review of the repetitive loss properties, and alternative approaches to determine whether any property protection measures or drainage improvements are feasible . It is organized by Repetitive Loss Regions 1 through 6.

5.1. Region 1 – South Natomas
The greater Natomas Basin is 55,000 acres in size and extends into the northwest portion of Sacramento County running south. The Basin is north of downtown at the American River Parkway (3 miles from downtown). Within the City, the area of the Natomas Basin is approximately 12,500 acres and is surrounded by levees. Natomas is in a FEMA A99 zone, meaning that levee construction is more than 50 percent complete to reach 100-year flood protection among other requirements. In addition to riverine flooding and potential levee breach, the Natomas Basin has interior levees and canals, so it is also at risk to internal drainage issues. The Natomas area is divided into North Natomas and South Natomas. The focus of the RLAA is in South Natomas where three repetitive loss areas were analyzed.

FIGURE 4. REPETITIVE LOSS AREA REGIONS MAP – REGION 1

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 1 – Area 1

Location: West of Northgate Blvd ,
Binghampton Dr and Larchwood Dr
Number of Properties in Defined Area: 12
Number of RL Properties in Area: 1
Flood Zone: A99
Dates of RL Flooding: 1/10/1995, 1/24/2000

Source of RL Flooding: This area is in Drainage
Basin 141, which is prone to street flooding due
to increased development in the area. Also,
some properties are more prone to structural
damage due to the addition of fill to their
property. The changes in grading causes water
to pool and seep into a portion of the structure
that is built below or at grade.

Mitigation Recommendations: For the area, flooding can be reduced by the addition of a detention basin, increase in pumping capacity, and pipe improvements. These projects are identified in the Drainage Master Plan for Basin 141 . As new development is constructed, drainage improvements will be funded and built. For individual property protection, residents are encouraged to ensure proper grading on the property to allow runoff to reach street drains. Other options, including installation of a drain or diversion, elevating the portion of the structure that is built below or at grade, and sandbagging, can provide additional protection from localized flooding.

FIGURE 5. EXAMPLE OF DIFFERENT FRONT YARD GRADING FOUND WITHIN THE NEIGHBORHOOD

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 1 – Area 2

Location: East of Truxel Road, Oak Nob Way,
Woodside Glen Way and Stonecreek Dr
Number of Properties in Defined Area: 28
Number of RL Properties in Area: 1
Flood Zone: A99
Dates of RL Flooding: 1/05/1997, 2/04/1998

Source of RL Flooding: Flooding occurred during
heavy winter storms. The source of the flooding is
runoff from adjacent properties graded to a higher
elevation.

Mitigation Recommendations: On-site grading on property to redirect the flow of water, installation of drains to divert pooling water, construction of a floodwall, or sandbags.

FIGURE 6. EXAMPLE OF THE CHANGE IN GROUND ELEVATION

BETWEEN ADJACENT PROPERTIES
FIGURE 7. DIVERS ION WAS CREATED TO DIRECT

WATER AWAY FROM STRUCTURES
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 1 – Area 3

Location: Garden Highway, North of Sacramento
River
Number of Properties in Defined Area: 3
Number of RL Properties in Area: 1
Flood Zone: AE
Dates of RL Flooding: 1/09/1995, 1/01/1997

Source of RL Flooding: During winter storms, this
strip of commercial development will experience a
large amount of water draining down into the parking
structures and overflow from the Sacramento River.

Flooding has occurred when the pump system located in the parking structures fail.

Mitigation Recommendations: Improvement or replacement of sump system. Based on information provided by occupants of this area, i mprovements have been made to the pump systems and no additional failures have occurred. Also, the repetitive loss area is located adjacent to natural functions and open space areas. Care should be given to preserve the natural quality of its surrounding to promote natural flood control qualities found near the river.

FIGURE 8. PARKING GARAGE LOCATED NEAR THE EDGE

OF THE SACRAMENTO RIVER

FIGURE 9. ENTRANCE TO PARKING GARAGES BELOW

MAIN S TRUCTURES

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Region 1 – Field Visits
Attachment C – Property Visit Documentation provides field visit information collected for all structures in Region 1’s repetitive loss areas. Questionnaires were left at each building and City staff talked with residents and tenants in the area after a large storm in January and February of 2017 t o help further understand flooding patterns in the area.

Region 1 – Mitigation and Action Items
Various mitigation activities were considered when analyzing Region 1’s hazard assessment. Table 12 lists all considered mitigation activities and identifies appropriate mitigation activities for each repetitive loss area.

TABLE 12. REGION 1 REVIEW OF ALTERNATIVE APPROA CHES
Mitigation Activity Region 1
Area 1 Area 2 Area 3
Prevention
Continue Enforcement of Stormwater Regulations X X X
Continue Drainage System Maintenance X X X
Continue Enforcement of Floodplain Management Regulations X Property Protection
Building Elevation X
Relocation
Improvement or Installation of Private Sumps X
Sewer Backup Protection
Flood-proofing
Flood Insurance X X X
Grading X X
Sandbags X X
Elevate Utilities
Natural Resource Protection
Natural Area Preservation X
Natural Area Restoration
Structural Projects
Floodwalls X
Diversions X X
Conveyance System Improvements (Structural)
Detention Basin X
Increased Pumping Capacity X
Pipe Improvements X
Public Information
Outreach Projects X X X
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Mitigation Activity Region 1
Area 1 Area 2 Area 3
Map Information X X X
Technical Assistance X X X
Emergency Services
Hazard Threat Recognition X X X
Hazard Warnings X X X
Health and Safety Maintenance X

Based on the complete analysis of this region , the following action items were identified. These action items were selected based on community feedback, funding, current City activities, and data reports.

TABLE 13. REGION 1 ACTION ITEMS
Action Item Responsible Office Schedule Potential Funding Elevate structures that are built at
or below grade
Department of
Utilities, Floodplain
Management

Dependent on
property owner
interest and grant
opportunities
Grants and private
funding
Flood/map information
hotline
Ongoing

Department funding

Technical assistance visits
Enforcement of floodplain
management regulations
Promotion of flood
insurance
Inform residents of location of
sandbag supplies in their area
Department of
Utilities, Operations &
Maintenance
(supplies only);
Property Owner
During flood event Department funding
(supplies
only)
Improvement and maintenance of
private sumps
Property Owner

Ongoing Private funding
On-site grading to divert water to
city conveyance system
Dependent on
property owner
interest

Private funding or grants

Diversions to direct
stormwater to City conveyance
system
Hazard threat recognition
system
Department of
Utilities

Ongoing Department funding
Develop sandbag locations closer
to repetitive loss area
Ongoing Department funding
Hazard warnings Department of
Utilities; Emergency
Services; Public
Information Office
During flood event Department funding
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Action Item Responsible Office Schedule Potential Funding Conveyance system
improvements identified in
Drainage Master Plan for Basin
141
Department of
Utilities, Wastewater
& Stormwater
Engineering Program
Long-Term Capital Improvement
Program
Enforcement of stormwater
regulations
Department of
Utilities,
Environmental
& Regulatory
Compliance
Ongoing Department funding
Drainage system
maintenance
Department of
Utilities, Operations &
Maintenance
Ongoing Department funding

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

5.2. Region 2 – Downtown East
The three repetitive loss areas in Region 2 are located in the neighborhoods of River Park, McKinley Park, and Coloma Terrace. These are older areas of the City that are vulnerable to overbanking, erosion, and seepage from the American River levees nearby and have other risks such as interior drainage issues (i.e., undersized and aged pipes).

FIGURE 10. REPETITIVE LOSS AREA REGIONS MAP – REGION 2

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 2 – Area 5

Location: 45th St and C St, East of Elvas Avenue
in Coloma Terrace Neighborhood
Number of Properties in Defined Area: 15
Number of RL Properties in Area: 1
Flood Zone: Shaded-X Zone
Dates of RL Flooding: 4/08/1995, 2/04/1998

Source of RL Flooding: Flooding occurs during
heavy storms that overwhelmed the undersized
drainage system in the area. The structures
included in the repetitive loss are located in a
low-lying area of the neighborhood, so they are
more dramatically affected by street flooding.

Mitigation Recommendations: Based on the Basin 10 Drainage Master Plan, improvements have been identified. Recommends critical pipes in the system be enlarged and a detention basin be constructed to provide adequate flood protection for the basin. These improvements would mitigate the repetitive loss properties in Area 5. Individual property owners can mitigate flood losses by using sandbags, keeping street drains clear of debris, constructing floodwalls on their property, installing sump pumps, and elevating utilities.

FIGURE 11. RESIDENTS USE SANDBAGS TO PROTECT

GARAGES FROM STREET FLOODING DURING
JANUARY 2 0 17 STORMS

FIGURE 12. DEBRIS COLLECTING ON A STORM DRAIN AT THE
CORNER OF 45TH AND C STREETS

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 2 – Area 6

Location: McKinley Park, Park Way and Santa
Ynez Way

Number of Properties in Defined Area: 12
Number of RL Properties in Area: 1
Flood Zone: Shaded-X Zone
Dates of RL Flooding: 1/29/1995, 1/25/1997

Source of RL Flooding: This area is located in a
basin with an undersized drainage conveyance
system. This area is also impacted by overflows
from the Combined Sewer System. During large
storms, water pools in the streets and yards of
the surrounding properties. Most flood loss is due
to water seeping into garages, basements and entryways located at grade level.

Mitigation Recommendations: The McKinley Water Vault project was completed in 2021. An AW-501, the NFIP Repetitive Loss Update Worksheet is in process to change the property status to “Mitigated” on the Repetitive Loss list.

FIGURE 13. STREET FLOODING FROM FEBRUARY 2 0 17
STORM. OVERWHELMED CONVEYANCE SYSTEM

FIGURE 14. EXAMPLE OF THE CITY’S WARNING THAT THE AREA

MAY CONTAIN S EWAGE

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

FIGURE 15. SOME HOMES IN THIS AREA HAVE BAS EMENTS AND DOORWAYS LOCATED AT GRADE LEVEL

Region 2 – Field Visits
Attachment C – Property Visit Documentation provides field visit information collected for all structures located in Region 2’s repetitive loss areas. Questionnaires were left at each building and City staff talked with residents and tenants in the area after a large storm in January and February of 2017 to help further understand flooding patterns in the area.

Region 2 – Mitigation and Action Items
The following mitigation activities were considered to address the hazards found in Region 2. Table 14 lists all considered mitigation activities and identifies appropriate mitigation activities for each repetitive loss area.

TABLE 14. REGION 2 REVIEW OF ALTERNATIVE APPROA CHES
Mitigation Activity Region 2
Area 5 Area 6
Prevention
Continue Enforcement of Stormwater Regulations X X
Continue Drainage System Maintenance X X
Continue Enforcement of Floodplain Management
Regulations X X
Property Protection
Building Elevation X
Relocation
Improvement or Installation of Private Sumps X
Sewer Backup Protection X

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Mitigation Activity Region 2
Flood-proofing
Flood Insurance X X
Grading
Sandbags X X
Elevate Utilities X X
Natural Resource Protection
Natural Area Preservation
Natural Area Restoration
Structural Projects
Floodwalls X
Diversions
Conveyance System Improvements (Structural)
Detention Basin/Vault X X
Increased Pumping Capacity X
Pipe Improvements X X
Public Information
Outreach Projects X X
Map Information X X
Technical Assistance X X
Emergency Services
Hazard Threat Recognition X X
Hazard Warnings X X
Health and Safety Maintenance X

Mitigation Activity
Based on the complete analysis of this region the following action items were identified. These action items were selected based on community feedback, funding, current City activities, and data reports.

TABLE 15. REGION 2 ACTION ITEMS
Action Item Responsible Office Schedule Potential
Funding
Elevate structures that are built at
or below grade
Department of Utilities,
Floodplain Management

Dependent of
property owner
interest and grant
opportunities
Grants
and
private
funding
Develop grant proposal for Summer 2018 Department
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Action Item Responsible Office Schedule Potential
Funding
installation of sumps to protect
garages and basements
funding

Enforcement of floodplain
management regulations
Ongoing

Promotion of flood insurance
Flood/map information hotline
Technical assistance visits
Provide neighborhood with
storm/flood ready information -
include emergency alert
information

Annual
Improvement and maintenance of
private sumps Property Owner

Ongoing Private
funding
Sewer backup protection system Dependent on
property owner
interest
Private
funding or
grants
Construction of a floodwall
Conveyance system
improvements identified in
Drainage Master Plan for Basin 31
Department of Utilities

Complete Capital
Improvement
Program

McKinley Water Vault Protect 2021 Complete
Enlarge critical pipes and
construct detention basin in
Drainage Basin 10
Dependent on
funding
Hazard threat recognition system Ongoing Department
funding
Inform residents of location of
sandbag supplies in their area
Department of Utilities,
Operations & Maintenance
(supply only); Property
Owner
During flood event Departme
nt funding
(supply
only)
Health and safety warnings and
inspection of Combined Sewer
System area
Department of Utilities,
Operations & Maintenance

During/after
flood event
Department
funding
Drainage system maintenance Ongoing Department
funding
Enforcement of stormwater
regulations
Department of Utilities,
Environmental & Regulatory
Compliance
Ongoing Department
funding
Hazard warnings Department of Utilities;
Emergency Services; Public
Information Office
During flood event Department
funding

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

5.3. Region 3 – Downtown West
Region 3 of the City of Sacramento’s RLAA is the western portion of Downtown Sacramento located just east of the Sacramento River. This area consists of several commercial buildings and high-rises as well as housing. The repetitive loss properties in this region are residential and the primary source of flooding in this area occurs due to an undersized Combined Sewer System that gets overwhelmed during large storms.

FIGURE 16. REPETITIVE LOSS AREA REGIONS MAP – REGION 3

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 3 – Area 7

Location: 23rd St and X St
Number of Properties in Defined Area: 8
Number of RL Properties in Area: 1
Flood Zone: X-Zone
Dates of RL Flooding: 12/12/1995, 1/22/1997,
9/19/2004

Source of RL Flooding: During moderately intense
storms, flooding occurs in Area 7 due to the
undersized conveyance system. Also, during times
of high -level ground saturation ponding, uneven
grading, and seepage cause additional flooding in
resident’s yards, garages, and basements.

Mitigation Recommendations: Improvement of Combined Sewer System, flood -proof basements, installation of sump pumps, sewer system backup protection, basement fill -in, property grading, on-site drainage to flow into main system, sandbags, utilities elevation, outreach on storm/flood preparedness, and flood insurance.

FIGURE 17. ON-SITE DRAINAGE ADDED TO AID

IN STORMWATER DRAINAGE

FIGURE 18. A FRACTURED BASEMENT WALL CAUSED BY
HYDROSTATIC PRESSURE; CRACKS HAVE LED TO WATER

SEEPING INTO THE BASEMENT

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 3 – Area 8

Location: 14th St. & Broadway
Number of Properties in Defined Area: 33
Number of RL Properties in Area: 1
Flood Zone: X-Zone
Dates of RL Flooding: 1/10/1995, 9/19/2004

Source of RL Flooding: During long duration storms,
flooding occurs due to an undersized conveyance
system. Many residents experience flooding in their
yards, garages, and basements. Because of hills in the
areas, there are garages located below grade that can
be inundated by water during large storms.

Mitigation Recommendations: Improvement of Combined Sewer System , flood -proof basements, installation of sumps, sewer system backup protection, sandbags, elevate utilities, outreach on storm/flood preparedness, and flood insurance.

FIGURE 19. EXAMP LE OF DEBRIS IN THE S TORM DRAIN.

LEAF PILES ARE ALLOWED TO BE LEFT ON STREETS FOR
CITY PICKUP AFTER CURBS IDE BINS ARE FULL; MANY

TIMES, THESE LEAVES CAN CLOG THE STORM DRAIN

FIGURE 20. EXAMPLE OF A TYP ICAL HOME IN THIS AREA
THAT WOULDN’T FLOOD; ELEVATED ON A CRAWL SP ACE AND
THE GARAGE LOCATED IN THE BACK OF THE PROPERTY.

SOME HOMES HAVE BASEMENTS

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 3 – Area 9

Location: 28th St and N St
Number of Properties in Defined Area: 5
Number of RL Properties in Area: 1
Flood Zone: X - Zone
Dates of RL Flooding: 1/10/1995, 1/25/1997,
9/19/2004

Source of RL Flooding: During long duration
storms, flooding occurs due to an undersized
conveyance system. This is a commercial area
and many of the business entryways are not
elevated. If street flooding overtops the curbs,
water can flow into the structure causing
structural damage.

Mitigation Recommendations: Improvement of Combined Sewer System, sewer system backup protection, sandbags, elevate utilities, elevate buildings, outreach on storm/flood preparedness, and flood insurance.

FIGURE 21. THE MAJORITY OF THE BUILDINGS IN AREA 9 DO NOT HAVE ELEVATED ENTRYWAYS

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 3 – Area 10

Location: 6th St and Q St
Number of Properties in Defined Area: 3
Number of RL Properties in Area: 1
Flood Zone: X-Zone
Dates of RL Flooding: 3/02/1995, 1/25/1997,
9/19/2004

Source of RL Flooding: During long duration
storms, flooding occurs due to an undersized
conveyance system. This is an area that is
commercial and residential. Only some of the
structures are elevated. If street flooding overtops
the curb, water can flow into the structure. There are also garages that are located below grade that can be inundated by water during large storms.

Mitigation Recommendations: The Drainage Master Plan for Basin 52 recommends an alternative analysis be done. A 2D model is recommended to determine problem areas. For individual property mitigation, using sandbags, installation of a temporary floodwall, elevate buildings are recommended. Outreach on storm/flood preparedness, and flood insurance should continue.

FIGURE 22. BASEMENT WINDOWS AND ENTRY DOOR
ARE NOT ELEVATED.

FIGURE 23. GARAGES ARE LOCATED BELOW GRADE.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 3 – Area 11

Location: 12th St and L St
Number of Properties in Defined Area: 3
Number of RL Properties in Area: 1
Flood Zone: X-Zone
Dates of RL Flooding: 1/09/1995, 1/01/1997

Source of RL Flooding: During moderately intense
storms, flooding occurs when stormwater flows
into the underground parking structures. Some of
structures are now equipped with temporary
floodwalls and sumps.

Mitigation Recommendations: Installation of
temporary floodwalls, sumps, and sandbags.

FIGURE 24. AREA 11 IS LOCATED IN THE MIDDLE OF DOWNTOWN SACRAMENTO.

MANY OF THE ENTRYWAYS ARE ELEVATED, BUT THE PARKING STRUCTURES ARE BELOW GROUND

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 3 – Area 12

Location: J St and 3rd St
Number of Properties in Defined Area: 10
Number of RL Properties in Area: 1
Flood Zone: X
Dates of RL Flooding: 1/26/1997, 9/19/2004

Source of RL Flooding: During storm events, the
street will continue draining runoff to the gutter
until the capacity of the gutter is exceeded, and as
a result water could potentially flow from the street
downhill to the property. However, rainfall direct ly on the entire block (5 acres) can accumulate at the lowest point of the block, near the bottom floor of this building. Little availability for infiltration of rainfall.

Directly beneath the RL property there are banks of large (6 -foot dia) culverts that may be a component of a large -scale, regional sump or drainage system but that information is currently unknown. The building’s mechanical equipment is elevated about 18 inches above the bottom floor (ground) level.

Mitigation Recommendations: 2 D model analysis to determine if future development at the nearby Railyards could help this area. Other recommendations include improvement of Combined Sewer System, sewer system backup protection, sandbags, elevate utilities, elevate bui ldings, outreach on storm/flood preparedness, and flood insurance.

FIGURE 25. CURB AND GUTTER AT BASE OF RAMP

TO S TREET ABOVE
FIGURE 26. BANKS OF 6-FOOT DIA CULVERTS

UNDER BUILDING

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

FIGURE 27. TRENCH DRAINS ALONG SOUTH SIDE

OF LOWEST FLOOR

FIGURE 28. UTILITIES ELEVATED

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Region 3 – Field Visits
Attachment C – Property Visit Documentation provides field visit information collected for all structures located in Region 3’s repetitive loss areas. Questionnaires were left at each building and City staff talked with residents and tenants in the area after a large storm in January and February of 2017 to help further understand flooding patterns in the area. Staff visited Area 12 in March 2023 to understand flooding patterns in this area.

Region 3 – Mitigation and Action Items
The following mitigation activities were considered to address the h azards found in Region 3. Table 16 lists the considered mitigation activities and identifies appropriate mitigation activities for each repetitive loss area.

TABLE 16. REGION 3 RECOMMENDED MITIGATION ACTIONS
Mitigation Activity Region 3
Area 7 Area 8 Area 9 Area 10 Area 11 Area 12
Prevention
Continue Enforcement of Stormwater Regulations X X X X X X Continue Drainage System Maintenance X X X X X X
Continue Enforcement of Floodplain Management
Regulations

X X X X X X
Property Protection
Building Elevation X X
Relocation
Improvement or Installation of Private Sumps X X X
Sewer Backup Protection X X X X
Flood-proofing X X X
Flood Insurance X X X X X X
Grading
Sandbags X X X X X X
Elevate Utilities X X X X X
Natural Resource Protection
Natural Area Preservation
Natural Area Restoration
Emergency Services
Hazard Threat Recognition X X X X X X
Hazard Warnings X X X X X X
Health and Safety Maintenance X
Structural Projects
Floodwalls X X X
Diversions
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Mitigation Activity Region 3
Area 7 Area 8 Area 9 Area 10 Area 11 Area 12
Conveyance System Improvements (Structural)
Detention Basin/Vault X
Increased Pumping Capacity X X X X X
Pipe Improvements X X X X
Public Information
Outreach Projects X X X X
Map Information X X X X X
Technical Assistance X X X X X

Based on the complete analysis of this region the following action items were identified. These action items were selected based on community feedback, funding, current City activities, and data reports.

TABLE 17. REGION 3 ACTION ITEMS
Action Item Responsible Office Schedule Potential Funding Elevate structures and utilities that
are built at or below grade
Department of Utilities,
Floodplain Management

Dependent on property
owner interest and
grant opportunities

Grants and private funding

Floodproofing
Provide neighborhoods with
storm/flood ready information -
include emergency alert information

Annual
Enforcement of floodplain
management regulations
Ongoing

Promotion of flood insurance
Flood/map information hotline
Technical assistance visits
Improvement and maintenance of
private sumps
Property Owner

Ongoing Private funding
Prohibit occupancy of lowest level Short-term; Dependent on property owner
interest
Private
Sewer backup protection system Dependent on property
owner interest
Private funding or grants
Hazard threat recognition system Department of Utilities Ongoing Department funding CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Action Item Responsible Office Schedule Potential Funding Acquisition by City Long-term Grant/department funding Inform residents of location of
sandbag supplies in their area
Department of Utilities,
Operations &
Maintenance (supply
only); Property Owner
During flood event Department funding
(supply only)
Health and safety warnings and
inspection of combined sewer
system area
Department of Utilities,
Operations &
Maintenance

During flood event Department funding

Drainage system maintenance Ongoing
Improvements identified in the
Combined Sewer System
Improvement Plan Update
Department of Utilities,
Wastewater &
Stormwater Engineering
Program

Long-Term

Capital Improvement
Program

Conveyance system improvements
identified in Drainage Master Plan
for Basin
Enforcement of stormwater
regulations
Department of Utilities,
Environmental &
Regulatory Compliance
Ongoing Department funding
Hazard warnings Department of Utilities;
Emergency Services;
Public Information Office

During flood event Department funding

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

5.4. Region 4 – Southeast Sacramento
Region 4 of the RLAA is located in the s outheast portion of Sacramento’s city limits. This entire region is composed of residential properties located between 65th Avenue and Power Inn Road. There are two repetitive loss properties located in this region that have flooded mainly due to poor grading. Water from higher adjacent properties flows into low -lying areas causing some homes to flood. A drainage study of Basin 96 concluded that limitations were discovered during observed flooding such as overland flow from one property to another and constraints such as fences and landscape features.

FIGURE 29. REPETITIVE LOSS AREA REGIONS MAP – REGION 4

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 4 –Area 13

Location: 37th Ave and 66th St
Number of Properties in Defined Area: 12
Number of RL Properties in area: 1
Flood Zone: X-Zone
Dates of RL Flooding:
1/10/1995, 1/22/1997, 12/31/2005

Source of RL Flooding: Flooding occurs during heavy,
long duration storms. The source of the flooding is
from open land adjacent to the properties.

Mitigation Recommendations: Grading on the
property to redirect the flow of water, installation of drains to divert water, construct floodwall, sandbags, flood insurance, and outreach on storm/flood preparedness.

FIGURE 30. STRUCTURE BUILT ON A CRAWL S PACE AND

HVAC UNIT IS ELEVATED AS A FLOOD-PROOFING

MEAS URE

FIGURE 31. PONDING CAUSED BY LANDSCAPING

OBSTRUCTIONS

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Region 4 – Field Visits

Attachment C – Property Visit Documentation provides field visit information collected for all structures located in Region 4’s repetitive loss areas. Questionnaires were left at each building and City staff talked with residents and tenants in the area after a large storm in January and February of 2017 to help further understand flooding patterns in the area.

Region 4 – Mitigation and Action Items

The following mitigation activities were considered to address the hazards found in Region 4. Table 18 lists the considered mitigation activities and identifies appropriate mitigation activities for each repetitive loss area.

TABLE 18. REGION 4 REVIEW OF ALTERNATIVE APPROA CHES

Mitigation Activity Region 4
Area 13
Prevention
Continued Enforcement of Stormwater Regulations X
Continue Drainage System Maintenance X
Continued Enforcement of Floodplain Management Regulations X Property Protection
Building Elevation X
Relocation
Improvement or Installation of Private Sumps
Sewer Backup Protection
Flood-proofing
Flood Insurance X
Grading
Sandbags X
Elevate Utilities X
Natural Resource Protection
Natural Area Preservation
Natural Area Restoration
Emergency Services
Hazard Threat Recognition X
Hazard Warnings X
Health and Safety Maintenance
Structural Projects
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Mitigation Activity Region 4
Area 13
Floodwalls
Diversions
Conveyance System Improvements (Structural)
Detention Basin/Vault X
Increased Pumping Capacity
Pipe Improvements
Public Information
Outreach Projects X
Map Information X
Technical Assistance X

Based on the complete analysis of this region the following action items were identified. These action items were selected based on community feedback, funding, current City activities, and data reports.

TABLE 19. REGION 4 ACTION ITEMS
Action Item Responsible Office Schedule Potential
Funding
Elevate structures that are built at or
below grade
Department of Utilities,
Floodplain Management

Dependent on
property owner
interest and grant
opportunities
Grants
and
private
funding
Flood/map information hotline Ongoing

Departm
ent
funding

Technical assistance visits
Enforcement of floodplain
management regulations
Promotion of flood insurance
Elevate utilities that are at or below
grade
Property Owner

Dependent on
property owner
interest

Privat
e
fundi
ng

Grading or diversion to redirect the
flow of stormwater to drainage
system
Inform residents of location of
sandbag supplies in their area
Department of Utilities,
Operations &
Maintenance; Property
Owner
During flood event Department
funding
Hazard threat recognition system Department of Utilities Ongoing Department funding
Drainage system maintenance Department of Utilities,
Operations &
Maintenance
Ongoing Department
funding
Enforcement of stormwater Department of Utilities, Ongoing Department CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Action Item Responsible Office Schedule Potential
Funding
regulations Environmental &
Regulatory Compliance
funding
Conveyance system improvements
identified in Drainage Master Plan
for Basin 96
Department of Utilities,
Wastewater &
Stormwater Engineering
Program
Long-Term Capital
Improvement
Program
Hazard warnings Department of Utilities;
Emergency Services; Public
Information Office
During flood event Department
funding

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

5.5. Region 5 – Sutterville/Meadowview
Region 5 of the RLAA stretches from Sutterville Road down south to Meadowview Road. The majority of this area is residential; however, it does consist of a few shopping/corporate centers, Bing Maloney Gold Course, and the Sacramento Executive Airport. This entire region is classified by FEMA as Zone X with a low risk of flooding due to surrounding levees.

FIGURE 32. REPETITIVE LOSS AREA REGIONS MAP – REGION 5

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 5 – Area 14

Location: 24th St and 69th Ave
Number of Properties in Defined Area: 10
Number of RL Properties in Area: 1
Flood Zone: X-Zone
Dates of RL Flooding: 2/23/20002, 12/31/2005

Source of RL Flooding:

Based on the investigation performed by GEI
Consultants, it was discovered that flooding likely
occurred due to undersized drainage system during
long duration storm events. Discussions with the
property owners confirmed this conclusion.

Mitigation Recommendations: Based on Drainage
Master Plan of Basin 33 and the technical analysis performed by GEI, on-site private property protection should be implemented. This area is a localized low spot. Private property actions including drainage and grading of the property, sandbags, or elevation of the finished floor would be effective mitigation actions.

FIGURE 33. DRAINS INS TALLED AFTER FLOODING TO DIVERT

WATER BACK TO THE MAIN DRAINAGE S YSTEM

FIGURE 34 . FRONT YARDS INUNDATED BY STREET
FLOODING; PICTURES TAKEN TWO DAYS AFTER

A LARGE S TORM

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 5 – Area 15

Location: 20th Ave and Freeport Blvd
Number of Properties in Defined Area: 13
Number of RL Properties in Area: 4
Flood Zone: X-Zone
Dates of RL Flooding:

Property 1: 1/10/1995, 2/07/1996
1/22/1997
Property 2: 1/10/1995, 1/22/1997
Property 3: 1/10/1995 1/22/1997
Property 4: 3/25/1989 1/12/1990 1/13/1993
1/09/1995 1/20/1996 1/22/1997

Source of RL Flooding: This area is located in a
low-lying area with an undersized drainage
conveyance system. Flooding occurs during
moderate and long duration storms.

Mitigation Recommendations: A master plan will need to be prepared for this area to look for alternatives to mitigate this area. Pipeline replacement and ups izing should be performed at the end of the pipe’s useful life. For individual property protection, flood insurance, sandbags, diversions, and elevation of utilities will provide additional flood protection.

FIGURE 35. EX A MPL ES OF FLOODPROOFING MEASURE SUCH AS A CRAWL S PACE (LEFT)

AND ADDITIONAL ON-SITE DRAINAGE PIPE (RIGHT)

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 5 – Area 16

Location: Alcedo Dr and Winnett Way,
West of Franklin Blvd

Number of Properties in Defined Area: 5
Number of RL Properties in Area: 1
Flood Zone: X-Zone
Dates of RL Flooding: 1/10/1995,
1/27/1997

Source of RL Flooding: This area is in a low -
lying area with an undersized drainage
conveyance system. Flooding occurs during
moderately intense and long duration
storms.

Mitigation Recommendations: Elevate garages, ensure proper on-site drainage to allow water to flow to storm drains, elevate utilities, sandbags, storm readiness outreach, and flood insurance.

FIGURE 36. CRAWL SP ACE UTILIZED AS A FLOODPROOFING

MEASURE TO PREVENT FLOODING IN THE STRUCTURE

FIGURE 37. STANDING WATER AFTER A LARGE

JANUARY STORM UNABLE TO CONVEY FLOWS

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 5 – Area 17

Location: 68th Ave and 21st St
Number of Properties in Defined Area: 13
Number of RL Properties in Area: 1
Flood Zone: X-Zone
Dates of RL Flooding: 1/10/1995, 2/26/2000

Source of RL Flooding: Based on GEI
Consultants’ investigation, the most logical
reason for flooding is unique to specific
property drainage within the area. It is
believed that an addition of a patio structure
in the back of the property reduced the ability
of the property to drain properly.

Mitigation Recommendations: For area flood protection, Drainage Master Plan for Basin 108 does not show property damage in this area. Some pipe upsizing recommendations to mitigate street flooding. Also suggest updating the model for alternative recommendations. Residents can add diversion(s) to promote the flow of water to the main drainage system, purchase flood insurance, and use sandbags to mitigate flooding.

FIGURE 38. ELEVATED HOME WITH LANDS CAPING

ASSISTING IN ON-SITE DRAINAGE
FIGURE 39. ELEVATED STRUCTURE WITH A CRAWL SPA CE

BELOW AS A FLOOD PROTECTION METHOD

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 5 – Area 18

Location: Golf View Dr and 48th Ave
Number of Properties in Defined Area: 14
Number of RL Properties in Area: 1
Flood Zone: X-Zone
Dates of RL Flooding: 1/25/1997, 12/23/2004

Source of RL Flooding:

Based on GEI Consultants’ investigation , the
flooding in this area is caused by undersized
drain pipes that are overwhelmed during long
duration storms. Street flooding can overtop the
curbs and begin to flood yards and garages.

Mitigation Recommendations: The Drainage Master Plan for Basin 22 to be completed. Old master plan did not show property damage in this area. Some pipe upsizing improvements to mitigate street flooding.

Also suggest updating the model. Other mitigation options are flood preparedness education, elevate utilities, flood insurance, and sandbags.

FIGURE 40 . EXAMPLE OF FLOODED YARD FROM
JANUARY 2 0 17 STORMS
FIGURE 41. EXAMPLE OF UTILITIES LOCATED ON THE ROOF;

MANY OF THE HOMES IN THIS AREA HAVE HVAC UNIT

LOCATED ON THE ROOF

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Region 5 – Field Visit
Attachment C – Property Visit Documentation provides field visit information collected for all structures in Region 5’s repetitive loss areas. Questionnaires were left at each building and City staff talked with residents and tenants in the area after a large storm in January and February of 2017 t o help further understand flooding patterns in the area.

Region 5 – Mitigation and Action Items
The following mitigation activities were considered to address the hazards found in Region 5. Table 21 lists the considered mitigation activities and identifies appropriate mitigation activities for each repetitive loss area.

T
ABLE 20. REGION 5 MITIGATION ALTERNATIVE APPROACHES
Mitigation Activity Region 5
Area 14 Area 15 Area 16 Area 17 Area 18
Prevention
Continue Enforcement of Stormwater
Regulations X X X X X
Continue Drainage System Maintenance X X X X X
Continue Enforcement of Floodplain
Management Regulations

X

X

X

X

X
Property Protection
Building Elevation X X
Relocation
Improvement or Installation of Private
Sumps
Sewer Backup Protection
Flood-proofing
Flood Insurance X X X X X
Grading X X X
Sandbags X X X X X
Elevate Utilities X X X X
Natural Resource Protection
Natural Area Preservation
Natural Area Restoration
Emergency Services
Hazard Threat Recognition X X X X X
Hazard Warnings X X X X X
Health and Safety Maintenance
Structural Projects
Floodwalls X
Diversions X X X X
Conveyance System Improvements (Structural)
Detention Basin/Vault X X
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Based on the complete analysis of this region the following action items were identified. These action items were selected based on community feedback, funding, current City activities, and data reports.

TABLE 21. REGION 5 MITIGATION ALTERNATIVES
Action Item Responsible Office Schedule Potential
Funding
Provide neighborhoods with storm/flood
ready information - include emergency alert
information
Department of Utilities,
Floodplain Management

Annual Department
funding
Elevate structures that are built at or below
grade
Dependent on
property owner
interest and grant
opportunities
Grants and
private funding
Drainage system maintenance Ongoing

Department
funding

Enforcement of floodplain management
regulations
Promotion of flood insurance
Flood/map information hotline
Technical assistance visits
Grading or diversion to redirect the flow of
stormwater to drainage system
Property Owner

Dependent on
property owner
interest

Private funding

Elevate utilities that are at or below grade
Construction of a floodwall Dependent on
property owner
interest
Private funding or
grants
Hazard threat recognition system Department of Utilities Ongoing Department funding
Conveyance system improvements
identified in Drainage Master Plan for Basin
33 Department of Utilities,
Wastewater &
Stormwater Engineering
Program

Long-Term

Capital
Improvement
Program

Diversion identified in Drainage Master Plan
for Basin 108
Mitigation Activity Region 5
Area 14 Area 15 Area 16 Area 17 Area 18
Increased Pumping Capacity
Pipe Improvements X X X X
Public Information
Outreach Projects X X X X X
Map Information X X X X X
Technical Assistance X X X X X
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Action Item Responsible Office Schedule Potential
Funding
Conveyance system improvements
identified in Drainage Master Plan for Basin
22 Conveyance system improvements
identified in- Drainage Master Plan for Basin
108
Inform residents of location of sandbag
supplies in their area
Department of Utilities,
Operations &
Maintenance; Property
Owner
During flood event Department
funding
Enforcement of stormwater regulations Department of Utilities, Environmental &
Regulatory Compliance
Ongoing Department
funding
Hazard warnings Department of Utilities;
Emergency Services;
Public Information Office
During flood event Department
funding
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

5.6. Region 6 – Arcade Creek
Region 6 of the RLAA stretches from Watt Avenue, through Haggin Oaks Golf Course, and west to Steelhead Creek. The majority of this area is residential. The flooding in this region is due to overbank flooding due to severe storm events. The region includes Zone AE.

FIGURE 42. REPETITIVE LOSS AREA REGIONS MAP – REGION 6

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 6 – Area 19
Location: Arcade Creek Blvd and Marysville
Blvd to Verano St
Number of Properties in Defined Area: 71
Number of RL Properties in Area: 2
Flood Zone: AE
Dates of RL Flooding 1: 1/4/1982, 1/10/1995
Dates of RL Flooding 2: 2/17/1986, 1/10/1995

Source of RL Flooding: This area is located
along Arcade Creek, directly west of the
publicly owned Haggin Oaks Golf Course. A
record high stage reading of 80.9 feet was
recorded at Arcade Creek on Jan uary 10, 1995. This suggests that the overtopping of the creek was probably the cause of the damage at the properties along Arcade Creek on that date. Properties along Palmer Street are additionally at a lower grade than Palmer itself ; therefore at this location there is the potential for runoff from Arcade Blvd. as well as adjacent streets. Many properties have out-buildings at the back of the property that are even more directly adjacent to Arcade Creek that may have received the damage.

East side: A visit was made to the area during regional flooding on January 5, 2023. Properties that flooded are directly adjacent to the large, partially concrete-lined channel that is the bed of Arcade Creek through this area. These homes sit at a lower finished floor elevation than the adjacent road. Water also pools on Verano Bridge and along the streets during high storm events and due to poor drainage in the area.

West side: During the January site visit, water had accumulated at the intersection of Palmer St and Arcade Blvd to a depth of about 8 inches. Farther down the street on Palmer, accumulation of tree leaves, debris, and branches had clogged up the only two drainage inlets on the north and the south ends of the street.

Properties on the north end of Palmer are at the lowest point of the street, which leads runoff to travel down north alongside the two gutter pans to the undersized drainage inlet at the end of the street.

Without proper maintenance or drainage inlet upsizing, water will keep accumulating in this location and could cause flooding to the adjacent properties.

Mitigation Recommendations: Properties’ finished floor elevations are low. Regional improvements could include detention storage in the golf course to provide adequate flood protection to the area, regional stormwater improvements to street drainage, and maint enance of the partially concrete-lined channel that is Arcade Creek. Ensure all upstream stormwater collection and conveyance infrastructure is cleaned and maintained before and dur ing large events. On -property mitigation efforts should include raising mechanical equipment, raising of the structures themselves, relocating the structures, and sandbags or a floodwall to divert or direct water away from the structures.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

FIGURE 43. VIEW NORTH ON PALMER TOWARD END OF THE

S TREET AND RL PROPERTY

FIGURE 44 . CLOGGED DRAINAGE INLET ON PALMER

ST AND ARCADE BLVD

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

FIGURE 45. ARCADE CREEK LOOKING WEST FROM VERANO
BRIDGE (CULVERT OUTLET AT RED ARROW) (STAGE 35 FT AT
MARYS VILLE BLVD (CITY) (4 740 3); MARCH 16

FIGURE 46. ARCADE CREEK LOOKING WEST FROM
VERANO BRIDGE (STAGE 40- 42 FT AT MARYS VILLE BLVD
(CITY) ( 47 403) ; JANUARY 5

FIGURE 47. ARCADE CREEK LOOKING WEST FROM

VERANO BRIDGE

FIGURE 48. VERANO BRIDGE WATER P ONDING

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

RLAA Region 6 – Area 20
Location: Gillespie St and Fairbanks Ave
Number of Properties in Defined Area: 12
Number of RL Properties in Area: 1
Flood Zone: X
Dates of RL Flooding: 12/23/2012, 1/7/2017,
3/1/2018
Source of RL Flooding: Previous communications
with homeowner indicated that the foundation is
weak from the 1986 flood, resulting in water
entering the home through the foundation. The
main area of flooding was in a lower level room and
patio. Resident uses sandbags and boards to keep
water out; however, the cracks in the foundation continue to let it seep through the floor.

Mitigation Recommendations: Structural improvements to house/foundation , use sandbags to prevent damage to the house, grading on the property to redirect the flow of water, installation of drains to divert water, construct floodwall, sandbags, flood insurance, and outreach on storm/flood preparedness.

FIGURE 49 . SUMP 15 8 NEAR GILLESPIE STREET FIGURE 50. SUMP 15 8 POND

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

FIGURE 51. TYPICAL NEIGHBORHOOD HOME BUILT UP FROM STREET

Region 6 – Field Visits

Attachment C – Property Visit Documentation provides field visit information collected for all structures located in Region 6’s repetitive loss areas. Targeted outreach letters and questionnaires were mailed to residents prior to the visit. Local residents responded to the outreach and provided anecdotal information on the local flooding.

Region 6 – Mitigation and Action Items

The following mitigation activities were considered to address the hazards found in Region 6.

Table 22 lists all considered mitigation activities and identifies appropriate mitigation activities for each repetitive loss area.

TABLE 22. REGION 6 REVIEW OF ALTERNATIVE APP ROACHES
Mitigation Activity Area 19 Area 20
Prevention
Continue Enforcement of Stormwater Regulations X X
Continue Drainage System Maintenance X X
Continue Enforcement of Floodplain Management Regulations X X Property Protection
Building elevation X X
Relocation X
Improvement or Installation of Private Sump
Sewer Backup Protection
Flood-proofing X
Flood insurance X
Grading
Sandbags X X
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

TABLE 23. REGION 6 ACTION ITEMS
Action Item Responsible
Office
Schedule Potential
Funding
Promote flood insurance Department of
Utilities, Floodplain
Management

Ongoing

Department
funding

Brochures, specific outreach
Continue to enforce local
floodplain development
ordinance
Inform residents of location of
sandbag supplies in their area
Prior to flood event
Investigate grant funding Long-term Department
funding, HMGP
funding
Elevate the structure Property owner

Depends on interest
of owner

Rebuild foundation/structural
improvements
Long-term
Investigate Capital
Improvement Plan for regional
stormwater infrastructure
Department of
Utilities

Long-term

Department
funding, HMGP
funding
Acquisition by City Grant/department
funding

Mitigation Activity Area 19 Area 20
Elevate Utilities X X
Structural Improvements X
Natural Resource Protection
Natural Area Preservation
Natural Area Restoration X
Emergency Services
Hazard Threat Recognition
Hazard Warnings
Health and Safety Maintenance
Structural Projects
Floodwalls X
Diversions
Conveyance System Improvements (Structural)
Detention Basin X
Increased Pumping Capacity
Pipe Improvements
Public Information
Outreach Projects X x
Map Information
Technical Assistance
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

6. Repetitive Loss Area Analysis Summary

The City of Sacramento is highly vulnerable to localized flooding. The City’s local drainage system services approximately 100 square miles and is handled by a combination of gravity and lift stations for a total of approximately 140 storm drainage basins. Since the City is typically lower than the elevated rivers by as much as 5-25 feet, the majority of the local drainage must be pumped into the rivers. The City operates 105 sumps and pumps to keep the drainage pumped down.

It is conceivable that extremely heavy local rainstorms can result in badly flooded streets and flooding of homes in some areas. It is estimated that such situations would be brought about by a slow-moving high- intensity rainstorm over several hour s reaching a peak intensity of one-half inch per hour later in the storm event. Any higher intensity storm event will cause localized flooding problems. The majority of the structures in the City’s repetitive loss areas are impacted by local drainage flood ing. The identified structural projects related to drainage improvements will result in long-term flood protection for affected areas. However, most of these projects must wait for funding to proceed.

It is recommended that property owners prepare themsel ves at the beginning of each rainy season, typically October. The City suggests having sandbag materials on hand, clear debris of storm drains on a regular basis, and have backup generators for sumps. The City’s mitigation activities recommended in this report include increased outreach on hazard awareness and warning, with additional efforts in repetitive loss area to ensure flood preparedness. Finally, the development of an ongoing program to match residents who would like to move forward with a structural or property protection mitigation activities with possible grant funding.

Through the collaborative efforts of the City and residents, the repetitive loss areas within Sacramento can become better prepared, more protected, and resilient to localized flooding.

6.1. Current Mitigation Projects

6.1.1. Capital Improvements Plan Drainage Improvements
The FY2023/24 budget for the City Utilities Program totals $47.3 million. At the current time, drainage improvements identified by the Utilities Department for implementation are under review and will be prioritized upon funding approval.

6.1.2. Acquisition and Demolition
The City of Sacramento has not identified any properties on its repetitive loss list that would be candidates for acquisition or demolition of the structures.

6.1.3. Advantages and Disadvantages of Mitigation Measures Seven primary mitigation measures are discussed here: acquisition, relocation, barriers, floodproofing, drainage, elevation, and insurance. In general, the cost of acquisition and relocation will be higher than other mitigation measures but can completely mitigate the risk of any future flood damage. Building small barriers to protect single structures is a lower cost solution, but it may not be able to offer complete protection from large flood events and may impact flood risk on other properties. Where CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

drainage issues are the source of repetitive flooding, drainage improvements can provide flood mitigation benefits to multiple properties. Each of these solutions is discussed in greater detail below.

Insurance differs from other property protection activities in that it does not mitigate or prevent damage caused by a flood. However, flood insurance does help the owner repair and rebuild their property after a flood, and it can enable the owner to afford incorporating other property protection measures in that process. Insurance offers the advantage of protecting the property, as long as the policy is in force, without requiring human intervention for the measure to work.

7. Conclusion and Recommendations
Conclusion and Recommendations
Based on the field survey and collection of data, the analysis of existing studies and reports, and the evaluation of various structural and nonstructural mitigation measures, the City of Sacramento has identified various mitigation measures that can be implemented by homeowners or identified for possible regional stormwater or drainage improvements that will be evaluated by City staff.

The City will encourage property owners to use flood -proofing measures to help protect lower levels of their property. Outreach and education will continue to be a priority, not only citywide but to individually affected residents, in order to minimize future flood risk through increased public education efforts to increase awareness of flood preparedness and flood protection measures such as moving valuable items to above the flood elevation and permanently elevating vulnerable HVAC units. At the same time, the City will work with property owners, citizens, the State and other regional and federal agencies to implement capital improvement projects, which will help to eliminate flooding in the repetitive loss areas.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Attachment 1 - Repetitive Loss List

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Status Total
Count Item Count RL# Mitigated? Flood
Zone NFIP Insured
Approved AW-501
1 1 302953 NO A99 NO
2 2 83750 NO A07 NO
3 3 76416 NO A99 YES
4 4 14959 NO X NO
5 5 304401 NO X NO
6 6 80810 NO X NO
Pending AW-501
7 7 74636 YES A99 NO
8 8 49291 YES AE YES
9 9 28436 NO AE NO
10 10 54735 NO AE NO
11 11 162939 NO AE NO
12 12 81320 NO A99 YES
13 13 48021 NO A NO
Unmitigated
14 1 158498 NO X YES
15 2 89651 NO AE YES
16 3 91177 NO A99 YES
17 4 108339 NO X NO
18 5 138956 NO X NO
19 6 83634 NO X NO
20 7 83635 NO X NO
21 8 83636 NO X NO
22 9 69776 NO X NO
23 10 78107 NO X NO
24 11 84233 NO X NO
25 12 136519 NO X YES
26 13 134126 NO X NO
27 14 302890 NO AE NO
28 15 257133 NO X NO
29 16 90285 NO X NO
30 17 300958 NO X NO
31 18 107964 NO A99 YES
32 19 91108 NO X NO
33 20 84247 NO X NO
34 21 80791 NO X NO
35 22 90378 NO X NO
36 23 158876 NO X NO
Mitigated
37 1 89648 YES A99 NO
38 2 49650 YES A NO
39 3 86119 YES A99 NO
40 4 76417 YES A99 NO
41 5 72548 YES A99 NO
42 6 86111 YES A99 NO
43 7 82068 YES X NO
44 8 89658 YES C NO
45 9 57940 YES A99 NO
46 10 80886 YES A99 YES
47 11 88303 YES A99 YES
48 12 85945 YES A99 NO
49 13 70855 YES A99 NO
50 14 94362 YES A99 NO
51 15 86120 YES A99 NO
52 16 1144 YES X NO
CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Status Total
Count Item Count RL# Mitigated? Flood
Zone NFIP Insured
53 17 57936 YES X NO
54 18 82390 YES A99 NO
55 19 81318 YES A99 NO
56 20 71120 YES A99 NO
57 21 84257 YES C NO
58 22 88789 YES A99 NO
59 23 88811 YES NO

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Attachment 2 – Outreach Mailing Materials
What You Need To Know
Because of levee and dam improvements, most of the City is outside the Special Flood Hazard Area (SFHA). While
these dams and levees provide us excellent protection,
they are still subject to failure and any property in the City remains at risk of flooding.

Sacramento’s vast floodplain and flood risk are due to our proximity to the Sacramento and American Rivers, as well as our local creeks and streams, and drainage systems
which rely on pumps to drain properly. In the past 36
years, areas of the City have been subject to significant flooding — most notably in 1986, 1987 and 1997. This risk of flooding means that it is important that you and your
family protect yourself and your property against flooding.

The SFHA, as designated by the Federal Emergency
Management Agency, represents the 100-year regulatory
floodplain. This means that in any given year, your
property has greater than a 1-in-100 chance of flooding.

But all homes, in and out of the SFHA, are subject to
floods.

Flood Insurance – Are You Covered?
For many of us, our home and its contents are our greatest investment, so it is important to realize that standard homeowners and renters insurance policies do not cover losses due to flooding. You are encouraged to buy flood insurance – whether or not your home is located within the Special Flood Hazard Area (SFHA). Effective October 1, 2021, FEMA's National Flood Insurance Program (NFIP) has implemented Risk Rating

2.0 policy rating methodology. Premiums are determined based on an individual property's flood risk. Individuals will pay based on multiple factors including flood risk variables, rebuilding costs and valuation of homes.

Also, Communities will continue to earn National Flood Insurance Program rate discounts of 5% - 45% based on the Community Rating System classification. The discount will be uniformly applied to all policies throughout the participating community, regardless of whether the structure is in the Special Flood Hazard Area (SFHA).

Remember, you don’t need to live in the SFHA to be affected by flooding. In fact, 30% of all claims occur outside the SFHA.

Recent levee improvements have reduced but not eliminated the flood risk to our community. Be sure to insure your property and its contents. There is a 30-day waiting period for most flood insurance policies to take effect. If you are buying a home and need flood insurance, purchase the insurance before the close of escrow, so the policy will go into effect at the close of escrow.

Whether it is required or not, property owners in flood-prone areas should always consider flood insurance as their first and last line of defense in protecting their family and property. Call your insurance agent or the National Flood Insurance Program at (800) 427-4661 to get your policy before the winter rains! Residents can also contact the City's Floodplain Information Line, (916) 808-5061, for general flood insurance information.

How Does the City Know a Flood is Coming?
The California Data Exchange Center (CDEC) provides a
centralized location to store and process real-time water level information gathered by various cooperators throughout the State including the City’s Automated Local Evaluation in Real Time (ALERT) gauges located on City creeks. The CDEC can be used to signal us about possible flooding. CDEC provides continuous reports from river, creek, and rainfall gauges online at www.cdec.water.ca.gov. With it, we can receive advanced warning of impending high water levels.

Know the Warnings
In case of a flooding emergency, the City may use different means to alert you to the situation and possible evacuation routes. •EME RGENCY ALERTS
Sacramento Emergency Communications Personnel will
use the Everbridge system to alert residents via phone or email if there is a need to evacuate. Listen carefully to the information and instructions provided to get help if you need assistance evacuating. To sign up for Everbridge
alerts, please visit: www.Sacramento-Alert.org.
•Listen for Sirens. In the case of an emergency, police and fi rst officials will use their sirens and loudspeakers to alert you to necessary information about the emergency.
•Turn On TV or Radio. During large storm events, turn on a television set or radio and tune to a local station to find out information about emergency and evacuation routes. The
emergency broadcast station for Sacramento is KFBK Radio 1530-AM.

Planning Ahead
Follow these tips to help your family be prepared in case of flooding.

1. Buy flood insurance. Know your insurance policies – what is covered and what isn’t.

2. Create a family emergency plan. Check out
www.ready.gov/plan for tips on what to plan for and a plan template.

3. Be familiar with the routes in and out of your
neighborhood in case you need to evacuate. Remember to
check TV or radio to find the preferred route out of your area before you leave your home.

4. Keep all of your important paperwork, including
insurance policies and birth certificates in a safe
place such as a deposit box, or get “tech ready” by having documents saved to a password-protected flash drive
or cloud storage. If you keep them at home, be sure to take them with you when you leave your house.

5. Find the high points in and around your home. If you are caught in a flood, stay out of the water if at all possible. Do not drive through flooded streets. Even shallow water can have a deadly current and may be contaminated. When
moving to upper floors, roof or higher ground, be sure to take your emergency supplies with you.

6. Teach children to dial 9-1-1 in case of emergency.

7. If you live in an area that is frequently flooded, keep sandbags, plywood, plastic sheeting and lumber on hand.

DO NOT stack sandbags against your
building’s foundation.

8. Consider improvements to your property, such as
grading or correcting drainage problems
that will help keep water away from your
structure.9. Keep areas open between homes, property lines, and levees.

10. For individuals with disabilities or medical
conditions, review FEMA’s additional preparedness
steps at
https://www.ready.gov/individuals-access-functional-needs.

Help Us Help You
There are several things that you can do to help the City. Make sure to properly dispose of yard waste in containers provided by the City. Remember illegal dumping is against the law. Keep drain inlets, drainage ditches and canals clear of junk and debris, and report any illegally dumped materials to the City by calling 311 or (916) 264-5011. Also, during a storm event, if you see a storm drain backing up, please call 311.

To find out if your home is located within the SFHA, floodway, in or around historic flooding, or additional hazards,
please contact the City’s Floodplain Information line at fl[email protected] or (916) 808-5061. A City representative will respond to your request within two business days. Floodplain maps and filed list of elevation certificates can be found at our City DOU website and can be requested through our information line or email: fl[email protected].

Get a permit before you start construction. Remember, all floodplain development and redevelopment, including grading, building and retrofitting, requires a permit. If you know of a non- permitted development project, please contact the City at (916) 264-5011 or 311.

Note: In SFHA zones A, AE, AH, and AO, if the cost of
reconstruction, rehabilitation, addition or other improvements to a structure is more than 50% of the building’s market value, then the structure must meet the same structural requirements as a new structure. This standard also applies to our local Magpie Creek floodplain. Technical assistance for retrofitting homes and additional information can be obtained from the Floodplain Information Line at fl[email protected] or
(916) 808-5061.
12/22 JM
Contact Numbers
Floodplain Information Line (916) 808-5061 or
fl[email protected]
To obtain general floodplain information, flood insurance information, structural retrofit and permit information, or if you need a site visit to discuss solutions to flooding and/or drainage problems, please email or call the Floodplain
Information Line. Please be prepared to leave your name, telephone number, property address, tax assessor’s parcel number and the type of information you need. A
representative will return your call within two business days.

National Flood Insurance Program Referral Center
(888) 379-9531 or www.floodsmart.gov.

To report issues with your local levee, storm drain backups or illegal dumping in ditches, gutters, streams or rivers, call 311 within City limits or (916) 264-5011 from outside the City.

Floodplain Protection
While flooding is a natural hazard in the Sacramento area, it is important to protect our waterways and the environment.

Floodplains can provide valuable wildlife habitat and are a natural part of Sacramento. Understanding and protecting the natural functions of floodplains helps reduce flooding damage and protect our environment. The City of Sacramento is part of the Sacramento Stormwater Quality Partnership. The
Partnership educates the public about illegal dumping into our waterways and stormwater pollution prevention. For more information, please call (916) 808-4H2O (808-4426) or visit www.beriverfriendly.net.

In addition to the American and Sacramento Rivers, several waterways traverse the City. These include Steelhead Creek (Natomas East Main Drainage Canal), Arcade Creek, Magpie Creek, Robla Creek, Morrison Creek, Florin Creek, Elder Creek, Strawberry Creek, Unionhouse Creek, Laguna Creek,
Sacramento Canals, Pocket Area Canals, and
Hagginwood Creek.

A GUIDE FOR SACRAMENTO RESIDENTS
READY

BE FLOOD
protect yourself
today and tomorrow

WWW.CITYOFSACRAMENTO.ORG/slash.caseFLOODREADY
Be prepared.

Be flood ready.

Buy flood insurance.

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Attachment 3 – Property Visit Documentation

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Attachment 4 – Summary of Questionnaire Responses

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Q2: How many years have you occupied the home/building at this address? Answer Choices Percentage Number Responding
less than 1 year 7 1
1 to 5 years 21 3
5 to 10 years 7 1
10 to 15 years 7 1
15 to 20 years 7 1
more than 20 years 50 7

Q3: Do you rent or own this home/building?
Answer Choices Percentage Number Responding
Rent 7 1
Own 93 13

Q4: What type of foundation does the home/building have? Answer Choices Percentage Number Responding
Slab 42 5
Crawl Space 33 4
Basement 17 2
I'm not sure 0 0
Other (please specify) 8 1

Q5: Has your home/building experienced flooding?
Answer Choices Percentage Number Responding
Yes 63 12
No 37 7

Q6: How concerned are you that your home/building will experience a flood event or an additional flood event? Answer Choices Percentage Number Responding
Very concerned 67 2
Somewhat concerned 33 1
A little concerned 0 0
Not at all concerned 0 0

Q7: How prepared are you if your home/building experiences a major flood? Visit the Department of Utilities webpage for ideas on how you can prepare for a flood emergency before it happens: How you can prepare for flooding - City of Sacramento Answer Choices Percentage Number Responding
Very prepared 0 0
Somewhat prepared 33 1
A little prepared 33 1
Not at all prepared 33 1

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Q8: If you do have flood insurance, was it required for you to obtain this insurance? For example, flood insurance is required for a federally-backed mortgage if you are in a flood zone.

Answer Choices Percentage Number Responding
Yes 67 2
No 33 1
I don't have flood insurance 0 0
I don't know 0 0

Q9: Has your household taken any precautions to prepare for a future flood? Please select all that apply.(If you would like more information on any of these measures or additional ideas, please see the links on the final page of this survey) Answer Choices Percentage Number Responding
Purchased flood insurance 21 4
Created evacuation plan 5 1
Cleared gutters 11 2
Elevated/raised the building 0 0
Re-graded yard to reduce runoff to the building 16 3
Installed flood vents 11 2
Installed sump pump 16 3
Moved utilities off ground level (e.g. electrical panels, propane tanks, A/C units, water heaters)
0 0
Purchased a backup power system or generator 5 1
Have access to sandbags 5 1
Waterproofed the outside walls 0 0
Moved things out of basement 0 0
We have not taken any precautions 0 0
Other (please specify) 11 2

Q10: Did any of these precautions work?

Answer Choices Percentage Number Responding
Yes 33 2
No 17 1
Please explain what worked or didn’t work. 3

Q11: In what year(s) did it flood?
Answers

2023 2
2017 (sump pump broke) 1
1993 and 1996 (street and basement only; before the French drain was installed in 2000 1

Q12: What do you feel was the cause of the flooding? Check all that affect your home/building.

Answer Choices Percentage Number Responding
Storm drain backup 46 6
Standing water next to house/building 15 2
Saturated ground/leaks in basement walls 8 1
Overbank flooding 0 0
Heavy rain event 15 2
Other (please specify) (Q13) (Arcade Creek) 15 2

CITY OF SACRAMENTO – Comprehensive Floodplain Management Plan Repetitive Loss Area Analysis July 2023

Q14: How did the water enter your home/building? For example, through the garage, basement, or first floor of the home.

Answers

It did not 1
From the street 1
Basement 4
Through the garage doors

Q15: How deep did the water get:
< 6" 6" to 12" 1' to 2' 2' to 3' 3' to 5' 5' or more Did not flood Yard 1

2 1

1 1
Crawl space 1

1 Garage 2

2 Over first floor

2 Basement 1 1

1 Q16: What was the length of time the water stayed in your house/building (how many hours or days)? 5-6 hours 3
We drained it ourselves with a hose and buckets 2
2 days 1
2 weeks water inside the garage 1

Q17: If your home/building was damaged, did you continue to stay or go elsewhere? Answer Choices Percentage Number Responding
Stayed in home 50 1
Left permanently 0 0
Left temporarily (specify how long you had to stay away) 50 1

Q18: If you left temporarily please choose your lodging accommodation.

Answer Choices Percentage Number Responding
Stayed with friends or family 0 0
Shelter 0 0
Hotel/motel/Air BNB 0 0
Rented a place 0 0
Other (please specify) 100 1

Q19: Prior to the flood(s), how vulnerable did you think your residence was to flooding? Answer Choices Percentage Number Responding
Very vulnerable 25 1
Somewhat vulnerable 50 2
Not vulnerable 25 1
I did not know there was a risk of flood on this property 0 0 Please provide any comments on the flood risk for your property 1

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 1
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
Addendum 1 to the Comprehensive Flood
Management Plan
Program for Public Information

Addendum A to the Comprehensive Flood Management Plan (CFMP), Chapter 7 Risk Management , Program for Public Information section is an update to portions of this program and is effective immediately upon council adoption. The portions not mentioned in this addendum are not changed from the original CFMP.

7.1 Introduction and Background

The Community Rating System (CRS) is part of the NFIP. It provides reductions to flood insurance premiums in participating communities. The reductions are based on community floodplain management programs, including public information activities. To keep those discounts, communities must continue to implement their programs and provide status reports to the NFIP each year. Sacramento has been an active participant of the CRS since October 1991. The City of Sacramento is currently a Class 3 providing a discount up to 35% for residents and businesses throughout the entire City

A Program for Public Information (PPI) is an ongoing effort to p repare, implement, and monitor a range of public information activities best suited for a community’s flood problems. The objective of CRS credit for a PPI is to provide additional credit for information programs that are designed to meet local needs and that are monitored, evaluated, and revised to improve their CRS effectiveness. Sacramento developed its PPI in accordance with the 2013 CRS Coordinators Manual and this addendum to the PPI is developed in accordance with the 2017 CRS Coordinators Manual and the 2021 CRS Coordinators Manual Addendum activity 330.

Over the years, the City of Sacramento, through many departments and in coordination with various stakeholder groups and outside agencies, has prepared multiple independent outreach messages to educate the public on the hazards associated with flooding. Be cause of the independent approaches to outreach, this chapter of the CFMP was prepared to bring together all the ideas form the various departments under one comprehensive document. The City has been working on stormwater issues for decades based on the unique conditions of a combined stormwater and sewer system, flat terrain and levees which could create bathtubs if pumps are not operating properly. The PPI committee is made up of City staff and stakeholders

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 2
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
and is an ongoing effort to prepare, implement, and monitor a range of public information activities best suited for the community’s flood problems.

The participants comprising the PPI Committee for Sacramento were selected in accordance with the CRS criteria and include the following:

1) Rosa Millino, PE, CFM – Floodplain Manager (Department of Utilities - DOU) 2) Jamie McKinley, CFM – Floodplain Management (DOU)
3) Jessica McCabe – Public Relations/Outreach and Education (DOU) 4) Remi Mendoza, CFM – Sacramento Community Development Department Long Range Planning 5) Brigid Burdock – City of Sacramento Resident
6) Deniece Ross-Francom – Dunnigan Realty, REALTOR
7) Allison Benevento – Flood Insurance Agent (HUB International)

PPI Committee Annual Evaluation Meeting
Annually, the City reviews the implementation of the outreach projects with the PPI Committee. An assessment is made as to whether the desired outcomes are achieved and what, if anything, should be changed.

The PPI Committee last met on Wednesday, September 28, 2022, 3:00-4:00pm. See Attachment 1 for agenda.

Step 2: Assess the Community’s Public Information Needs Sacramento is located in north central Sacramento County. The City comprises approximately 100 sq miles in total area. The US Consensus Bureau estimates the 2022 City of Sacr amento population at 516,817. The majority of the land use within Sacramento is residential (rural, suburban, traditional, and urban) according to the City of Sacramento 2035 General Plan Land Use.

Most buildings are slab -on-grade (Diagram 1 on the FEM A Elevation Certificate) and therefore susceptible to flood damage from shallow flooding and drainage problems. Because the City is located in a unique low-lying area, it is particularly susceptible to flooding from major rain events.

Flood Hazards:

The City is located among a complex system of waterways and levees creating potentially the most flood prone community in the nation. Sacramento is located at the confluence of the Sacramento and American Rivers. The Sacramento River is fed by the Feather River and the Sutter Bypass to the north and runs along the western edge of the City. The Sacramento Rive r splits and forms the Yolo Bypass in the Natomas Basin area. Additionally, the American River runs from the east to the Sacramento River and forms a linear transect through the City.

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 3
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
Much of the City, approximately 75 -percent, is currently dependent on levees to prevent flooding. The USACE expired the certifications for the City’s levees in 2012 and 2013 because the certifications no longer met the USACE’s risk & uncertainty criteria and/or were older than 10 years. In 2012, SAFCA along with the local communities and maintaining agencies, began developing a levee accreditation program to determine whether the levees protecting the City along the lower American and Sacramento rivers and their tributaries adequately met the minimum requirements of the NF IP. This ongoing accreditation program is discussed in further detail in Chapter 5. Currently, the areas behind the levees are still identified on the Flood Insurance Rate Maps (FIRMs) as providing 100-year flood protection.

Internal drainage creates a considerable risk in the City for shallow flooding. Internal storm drainage creates flood issues for many buildings because of the flat nature of terrain and runoff which is pumped through levees to a creek or river. If drainage inlets are clogged or pu mp stations fail there is a potential for damage to properties. Part of the problem can be attributed to a combined drainage and sanitary sewer system. Over 7,500 acres of the City is subject to a combined system.

The PPI Committee’s assessment of the major causes of flooding include:
• Internal drainage issues/combined sewer system
• Levee river flooding
• Dam breach
• Upstream development
Target Area #2: Repetitive Loss Properties (areas)
Properties categorized as repetitive loss properties have a greater need for flood protection. According to 2022 NFIP records, there are 23 unmitigated repetitive loss properties in Sacramento. Figure 7.4 illustrates the location of the repetitive loss properties classified as unmitigated and the location of past flood insurance claims within the City. FEMA places a high priority on mitigating repetitive losses. Since 1982, the City has mitigated 23 properties. The City has investigated the causes of repetitive flooding and some of the causes include:
• Properties in low lying area of drainage basin;
• Properties have undersized conveyance private and public systems; • Properties have combined storm and sanitary system;
• Properties receive drainage from adjoining property at higher elevations; • Properties have created problems with lot grading and obstructions to flow; and • Properties need further investigation.

Information on property protection and financial assistance program s for mitigation measures is needed for each property located in the repetitive loss properties target area. Residents in this area will also have an increased need for site visit services.

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 4
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
Table 7.1 below details the repetitive loss building count categorized by FEMA flood zone. Figure 7.4 shows the approximate locations of these properties in the City.

Table 7.1. Repetitive Loss Building Count by FEMA Flood Zone Flood Zone Repetitive Loss Building Count
AE & A99 5
X 18
Total 23
Source: FEMA RL List 2021/2022 Data
Summary
Repetitive loss property locations and insurance claims are more heavily distributed across A flood zones.

All repetitive loss areas are notified of this problem, information on property protection measures, risk factors, insurance requirements, and types of grant funding which can provide mitigation monies.

Appendix D contains the Repetitive Loss Area Analysis which shows the details of the City’s repetitive loss areas and outreach project.

Table 7.2. NFIP Policy and Claims Data by Flood Zone
Policies in
Force
Premium Insurance in Force Number of
Closed Paid
Losses
$ of Closed Paid
Losses
Adjustment
Expense
A01-30 &
AE Zones
36 $15,094 $12,475,000 51 $503,592.03 $20,294.98
A Zones 0 $0 $0 32 $239,984.28 $11,212.87
AO Zones 0 $0 $0 16 $75,317.77 $4,075.00
AH Zones 79 $54,919 $19,106,000 31 $183,102.47 $13,840.00 AR Zones 1 $1,144 $300,000 33 $380,263.95 $17,667.02
A99 Zones 21,880 $10,949,641 $7,645,176,000 1,426 $6,338,180.99 $443,683.30 Standard x 11,541 $5,928,586 $3,950,546,000 200 $1,743,687.32 $77,826.79 Preferred x 0 $0 $0 115 $539,935.71 $67,035.00
Total 33,537 $16,949,384 $11,627,603,000 1,904 $9,995,064.52 $655,634.96 Source: FEMA CIS 2023

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 5
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
Table 7.3. Percentage of Buildings Insured
Flood Zone Number of Policies in
Force
Number of Buildings % Insured
A01-30 & AE Zones 36 368 9.78%
A Zones 0 3 0%
AO Zones 0 0 0%
AH Zones 79 264 29.92%
AR Zones 1 0 0%
A99 Zones 21,880 51,992 42.08%
Total 21,996 52,627 81.78%

B, C, & X Zones 11,541 191,006 6.04%
Source: (Buildings)_Sacramento County Parcel Data and FEMA DFIRM – October 2022 (Policies) FEMA CIS Insurance Overview May 2023

Table 7.4. Flood Loss Estimates by Flood Zone
Flood Zone Number of
Buildings
Number of
Policies in Force
Total Coverage Loss Estimate
A01-30 & AE Zones 368 36 $12,475,000
$7,720,441.49

A Zones 3 0 $0
AO Zones 0 0 $0
AH Zones 264 79 $19,106,000
AR Zones 0 1 $300,000
A99 Zones 51,992 21,880 $7,645,176,000
B,C, & X Zones 191,006 11,541 $3,950,546,000 $2,274,623.03 Total 243,633 33,537 $11,627,603,000 $9,995,064.52
Source: (Buildings)_Sacramento County Parcel Data and FEMA DFIRM – October 2022 (Policies) FEMA CIS Insurance Overview May 2023

Insurance conclusions:

1. There are over 33,000 flood insurance policies in the City and over 80% of buildings in the SFHA are insured.

2. Drastic increase in A99 policy percentage and building count likely due to the remapping of Natomas area from AE zone to an A99 zone.

3. Increase of SFHA policies may be due to increased housing costs requiring federally backed mortgages and mandatory insurance requirements.

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 6
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
Repetitive Flooding
An analysis of repetitive loss was completed to examine the number of insured repetitive loss pro perties against FEMA flood zones. According to 2022 NFIP records, there are currently 23 unmitigated repetitive loss properties evaluated in this analysis with total payments of roughly $691,637.

Table 7.5. Repetitive Loss Summary (Unmitigated Properties) Flood Zone Building Count Total Number
of Losses
Total Building
Payment
Total
Content
Payment
Total Paid
Insured Uninsured
X 1 17 41 $453,235 $85,499 $538,734
AE & A99 3 2 10 $150,873 $2,030 $152,903
Total 4 19 51 $604,108 $87,529 $691,637
Source: FEMA RL List 2021/2022

Table 7.6. Public Information and Flood Response Projects Project
Number
Organization Project Subject Matter Frequency
OP 1.

City of Sacramento Department
of Utilities, Floodplain
Management, & PIO Staff
Be Flood Ready Brochure Flyer in Utility Bill Annually - November OP 2.

City of Sacramento Department
of Utilities, & Floodplain
Management

Repetitive Loss Outreach
Letter with advice on
property protection, site
visits, and financial
assistance for mitigation
measures and Be
Ready Flood Brochure
Annually – Late Fall
OP 3.

City of Sacramento Department
of Utilities, & Floodplain
Management

Map Inquiry Service
Flood, Hazard Areas,
mandatory insurance
purchase requirements
Year-round
OP 4.

City of Sacramento Department
of Utilities, Floodplain
Management, & PIO Staff
High Water Marks
Program to monitor and
establish high water
marks after flood events
Year-round
OP 5.

City of Sacramento Department
of Utilities, Floodplain
Management, & PIO Staff
Outdoor Ad Placement Flood related messaging Annually - Fall OP 6.

City of Sacramento Department
of Utilities, Water Quality & PIO
Staff
No Dumping Signs Signs throughout
floodplain Year-round
Project
Number
Organization Project Subject Matter Frequency
OP 7.

City of Sacramento Department
of Utilities, Floodplain
Management, Drainage, & PIO
Staff
Flood Protection
Assistance Site Visits
Drainage problems,
flood protection,
historical flood damage
Year-round

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 7
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
OP 8.

City of Sacramento Department
of Utilities, Floodplain
Management, Water Quality,
California Department of Water
Resources & PIO Staff
Various Brochures at City
Offices
How to develop in a
floodplain, living next to
a levee, stormwater
pollution, substantial
improvement rule,
permit requirements
Year-round
OP 9. California Department of Water
Resources
Levee Flood Protection
Zone Map (Flood Risk
Notification: Living with
Levees)
Indication of properties
estimated to be at a
depth of greater than 3
feet
Year-round
OP 10.

Federal, State, City of
Sacramento and Sacramento
County
Flood Preparedness
Week
Promote awareness of
flood damage Annually November
OP 11. City of Sacramento Department
of Utilities, & Water Quality
No Dumping Stencils &
Permanent Markers
Promote on storm drains
that only rain water
should go down drain
Year-round
OP 12. Office of Emergency Services Booklets “Are You Prepared” Information Year-round
OP 14. American River Flood Control
District Newsletter Flood Control
Information At least Annually
OP 16. City of Sacramento – Several
Departments participate Earth Day
Information provided on
flood insurance,
emergency kits, pay
attention during storm
events
Annually - April
OP 19.

City of Sacramento Department
of Utilities, Floodplain
Management & PIO Staff
Dam Safety Outreach
Brochure that describes
inundation area and
identification of risks,
evacuation procedures
and routes
Annually
OP 20.

City of Sacramento Department
of Utilities, Floodplain
Management, Water Quality,
& PIO Staff
SPLASH program
Provide messages to
elementary students on
flood protection,
stormwater pollution
Quarterly
OP 21. Real Estate Agents
Disclosure of the Flood
Hazard Informational
Guide
Explains State
Requirement for Flood
Disclosure to Real
Estate Agents
Year-round
OP 22. City of Sacramento Department
of Utilities, OES, PIO
Translation Services
Provided
City will provide
translation services to
help understand all
flood-related information
Year-round
OP 23. Insurance Agencies Bi-lingual Insurance
Agents
Flood Insurance
information presented in
native language
Year-round
Project
Number
Organization Project Subject Matter Frequency
OP 24. City of Sacramento Department
of Utilities, & OEM
Levee Breach Scenario
Maps – 18 Rescue Areas
Website mapping which
shows “Red “ rescue
areas where water has
the potential to reach 1’
in 2 hours
Year-round
OP 25. California Nature Conservancy Conserving Natural Resources in California
Newsletters and website
Information on natural &
beneficial functions of
floodplains
Year-round

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 8
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
OP 26. Real Estate Agents and
Lenders
Real Estate Agent’s
Brochure
Brochure for potential
homebuyers to provide
floodplain information
Year-round
OP 27. City of Sacramento Department
of Utilities Flood Ready Website Provides information on all flood related topics Year-round
OP 28. American River Parkway
Foundation
The American River
Parkway Brochure
Provides information on
wildlife, habitat
protection, and
recreational activities
Year-round
OP 29. National Flood Insurance
Program (NFIP)
NFIP Risk Notification
Mailing
Provides flood insurance
holders with flood risk
information for their area
Annually
OP 30. Congresswoman Doris Matsui’s
Office
Flood Insurance
Promotion: Web Page and
Community Newsletter
Congresswoman Matsui
promotes the
importance of flood
insurance through her
website and newsletter
Year-round
OP 31. Flood Insurance Outreach
Letter
Mail Flood Insurance
Promotion Brochures
Provide flood insurance
information and
encourage purchasing a
policy
Annually
OP 32. Federal Emergency
Management Agency (FEMA)
Hazard Mitigation Grant
Program Brochures
Provides information on
grants that are available
for structure retrofit and
flood mitigation.

Year-round
Flood Response Projects
Project
Number Organization Project Subject Matter Frequency
FRP 1.

Primary: Public Information
Officer and City Manager
Secondary: Community
Development Department and
Depart of Utilities
Media Release (TV and
Radio and Newspapers)
Various flood-related
topics (Turn around
don’t drown, evacuation,
sandbags, Substantial
Damage, etc.)
During and after a flood
event
FRP 2. Emergency Operations Center
and Public Information Officer
Everbridge/Emergency
Broadcast System
Use Everbridge and
EBS to notify residents
of information during a
flood
During a flood event
FRP 3.

Primary: Public Information
Officer and Neighborhood
Services Secondary:

Community Development
Department and Depart of
Utilities
Media Release and Post
of Social Media
(Facebook, Twitter, Next
Door, and others)
Various flood-related
topics (Turn around
don’t drown, evacuation,
sandbags, Substantial
Damage, etc.)
During and after a flood
event
FRP 4.

Department of Utilities,
Operations & Maintenance,
Water Quality Lab
Drinking Water Quality
Incident Response
Prevent consumption of
contaminated water
after a flood. Outreach
materials drafted,
translated and delivered
to warehouse.

During and after a flood
event, if needed
FRP 5. Department of Utilities,
Operations & Maintenance
Combined Sewer System
Warning Signs
Signage posted after
flood to prevent people
from entering potentially
contaminated water
During and after a
Combined Sewer
System flood event
(including street
flooding events)
FRP 6.

Primary: Police Secondary:

Code Enforcement, Building
Department, and Department of
Utilities
After flood event handouts
when in the field
Re-entry safety, permit
& reconstruction
requirements, flood
protection methods
Upon re-entry of
flooded areas

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 9
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
FRP 7.

City of Sacramento
Neighborhood Services and
Department of Utilities
Flood Insurance and
Grant Information
Handouts
Information on filing
flood insurance claims
and grant opportunities
Provided to flood
damaged properties
during an inspection or
upon re-entry to area

Figure 7.12. Public Information Examples

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 10
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 11
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
Step 5: Examine Other Public Information Initiatives
The PPI committee evaluated a total of 28 Outreach Projects (OP) and 7 Flood Response Preparation (FRP) projects listed in the City’s PPI. Each of the projects were reviewed and evaluated. The OPs provide the public with information needed to increase flood hazard awareness and to motivate actions to reduce flood damage, encourage flood insurance coverage, and protect the natural functions of floodplains. In addition, the City reviewed the real estate brochures for real estate agents and potential homebuyers, the Insurance Coverage Improvement Plan goals, and the “Be Flood Ready” website.

There was a consensus in the Committee that the current PPI has been and continues to be effective in communicating the Flood Ready messages to the community.

The PPI committee had recommendations for various outreach projects:

• Based on the success of the 2021 virtual flood preparedness event the committee recommends that the City should continue to host a citywide event virtually or in-person if possible. The City will continue to educate residents on how to become Flood Ready and what the City and fellow stakeholders are willing to do during a flood event. Continue d effort should be made to market this event to schools and children.
• Promotion of flood maps on social media to increase awareness of this City service. • Help make the City residents more aware of the High Water Mark signs with a list on the City Website of all the High-Water mark locations and if possible, do more High-Water Marks within the City and publicize the signs.
• Spread the word on the locations, dates and times that sandbags are available for the public before or during storm events.

The City continues to implement CRS flood protection activities:
• Activity 320 – Map Information Service
• Activity 330 – Outreach Projects (other sections of the PPI) • Activity 350 - Websites
• Activity 360 – Flood Protection Assistance
• Activity 630 – Dam Safety (outreach requirement)

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 12
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1395 35th Avenue
Sacramento, CA 95822
Step 6: Implement, Monitor and Evaluate the Program
Adoption
This document will become effective upon adoption by the City Council.

Evaluation
The City of Sacramento Department of Utilities Floodplain Manager will monitor the projects as they are developed, as well as the results. They will record inputs from PPI Committee members and suggestions from other City employees and stakeholders participating in the activities. That input will be sent by e - mail to committee members for consideration and evaluation.

The PPI Committee will meet at once a year to review the implementation of these projects and initiatives.

At that time, the status of the projects will be explained and progress toward the outcomes will be discussed. The Committee will recommend to the appropriate City offices and the stakeholders who implement projects whether the projects should be changed or discontinued.

Annually City staff will draft an update to the table and send it to the Committee members. The Committee will meet and review the outcomes of each individual activity to change, add, or approve them. Table 7.8 will be revised as needed. The outcomes and revisions will be included in an evaluation report which will be provide to City Council and submitted as part of the City’s annual recertification package to the Community Rating System.

Table 7.8. PPI Projects and Initiatives
Outreach Projects (OP)
Target
Audience
Message(s) Outcome Project(s) Assignment Schedule Stakeholder

1. Entire City
(homeowners,
businesses
and renters)

A. Know your flood
hazard
B. You need flood
insurance
C. Protect people
from the flood
hazard
D. Protect your
property from the
hazard

A. 1, 3 & 4
B. 1,2, 3 &
4 C. 2 & 3
D.1,2,3,4,5,
6 E. 1 & 2
F. 1,2,&3
I. 1, 2 & 3
OP 1. Be Ready Flood
Brochure
City of
Sacramento
Department of
Utilities, & PIO
Nov each
year N/A
OP 3. Map Inquiry
Service
City of
Sacramento
Department of
Utilities -FPM
Year-round N/A
OP 4. High Water Mark
Initiative
City of
Sacramento
Department of
Utilities -FPM
Year-round DRW/USACE/

FEMA/USGS

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 13
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1395 35th Avenue
Sacramento, CA 95822
Outreach Projects (OP)
Target
Audience
Message(s) Outcome Project(s) Assignment Schedule Stakeholder

OP 5. Outdoor ad
placement
City of
Sacramento
Department of
Utilities & PIO
Oct. each
year N/A
OP 6. No Dumping
Signs
City of
Sacramento
Department Dept.
of Utilities, Water
Quality, & Solid
Waste
Year-round N/A
OP 7. Flood Protection
Assistance
City of
Sacramento
Department of
Utilities
Year-round N/A
OP 8. Various
Brochures at City
offices
City of
Sacramento
Department of
Utilities -FPM
Year-round DWR/
CVFPB

1. Entire City
(continued)
(continued)

(continued)

OP 10. Flood Prepared-
ness Week
City of
Sacramento
Department of
Utilities – FPM &
PIO
Oct. each
year
Sacramento
County/DWR/

USACE/USGS

OP 11. No dumping
stencils & permanent
markers
City of
Sacramento
Department of
Utilities & Water
Quality
Year-round N/A

OP 12. ”Are You
Prepared” Booklets
Office of
Emergency
Services
Year-round
UC Davis
Medical
Center &
Sacramento
County
OP 14. Flood Wise
Newsletter ARFCD Annually ARFCD
OP 16 Earth Day
City of
Sacramento
Department of
Utilities, PIO,
OEM, Police, Fire
April, May,
September N/A
OP 19. Dam Safety
Outreach
City of
Sacramento
Department of
Utilities
Annually
late fall N/A

OP 25. Website &
Newsletter on NBF of
Floodplain
California Nature
Conservancy Year-round
California
Nature
Conservancy

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 14
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1395 35th Avenue
Sacramento, CA 95822
Outreach Projects (OP)
Target
Audience
Message(s) Outcome Project(s) Assignment Schedule Stakeholder

1. Entire
City
(continued)
(continued)

(continued)

OP 26. Real Estate
Agent’s Brochure
City of
Sacramento
Department of
Utilities & Real
Estate Agents
Develop by
October 1,
2016
Real Estate
Agents and
Lenders
OP 27. Flood Ready
Website
City of
Sacramento
Department of
Utilities
Year-round N/A

OP 28. The American
River Parkway
Brochure
American River
Parkway
Foundation
Year-round
American
River Parkway
Foundation
OP 29 Flood Zone Risk
Notification
NFIP Risk
Notification
Mailing
Annually
National Flood
Insurance
Program
(NFIP)

OP 30. Flood Insurance
Promotion of Website &
Newsletter
Congresswoman
Doris Matsui’s
Office
Year-round
Congresswom
an Doris
Matsui’s Office

1. Entire City
(continued)
(continued)

(continued)

OP 31. Flood Insurance
Outreach Letter
City of
Sacramento
Department of
Utilities
Annually N/A

OP 32. FEMA Grant
Brochures
City of
Sacramento
Department of
Utilities
Year-round FEMA

2.School
Children
A. Know your flood
hazard
C. Protect people
from the flood
hazard
D. Protect your
property from the
hazard
F. Protect Natural
Floodplain
Functions
H. Flood Education

A. 1,3 & 4
C. 1,2 & 3
D. 2,4 & 5
F. 1, 2, 3
H. 1 & 2

OP 20. SPLASH
Program
City of
Sacramento
Department of
Utilities & Water
Quality
Quarterly N/A
OP 27. Flood Ready
Website
City of
Sacramento
Department of
Utilities
Year-round N/A

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 15
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1395 35th Avenue
Sacramento, CA 95822
Outreach Projects (OP)
Target
Audience
Message(s) Outcome Project(s) Assignment Schedule Stakeholder OP 1. Be Flood Ready
Brochure
City of
Sacramento
Department of
Utilities
Year-round N/A

3.Real Estate,
Lending, and
Insurance
Companies
A. Know your flood
hazard
B. You need flood
insurance
E. Build
Responsibly

A. 1 & 2
B. 1,2,3&4
E. 1,2&3
OP 3. Map Inquiry
Service
City of
Sacramento
Department of
Utilities
Year-round NA
OP 21. Real Estate
Disclosure – State
Requirement
Real Estate
Agents
Developed
by October
1, 2016
Real Estate
Agents
OP 23. Flood Insurance
Information Insurance Agents Year-round
Insurance
Agents

OP 26. Real Estate
Agent’s Brochure
City of
Sacramento
Department of
Utilities & Real
Estate Agents
Develop by
October 1,
2016
Real Estate
Agents and
Lenders
OP 27. Flood Ready
Website
City of
Sacramento
Department of
Utilities
Year-round N/A
Target Area

2.Repetitive
Loss
Properties
(Areas)
A. Know your flood
hazard
B. You need flood
insurance
C. Protect people
from the flood
hazard
D. Protect your
property from the
hazard
E. Build
Responsibly
F. Protect Natural
Floodplain
Functions
I. General
Preparedness
A. 1, 3 & 4
B. 1,2, 3 &
4 C. 2 & 3
D.1,2,3,4,5,
6 E. 1 & 2
F. 1,2,& 3
I. 1, 2 & 3
OP 1. Be Ready Flood
Brochure
City of
Sacramento
Department of
Utilities & PIO
Nov. each
year N/A
OP 2. Repetitive Loss
Outreach Mailing
City of
Sacramento
Department of
Utilities
Annually
late fall N/A
OP 7. Flood Protection
Assistance
City of
Sacramento
Department of
Utilities
Year-round N/A

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 16
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1395 35th Avenue
Sacramento, CA 95822
Outreach Projects (OP)
Target
Audience
Message(s) Outcome Project(s) Assignment Schedule Stakeholder

4.Vulnerable
Populations

A. Know your flood
hazard
B. You need flood
insurance
C. Protect people
from the flood
hazard
D. Protect your
property from the
hazard
E. Build
Responsibly
I. General
Preparedness
A. 1,2, 3 &
4 B. 1,2, 3 &
4 C. 2 & 3
D.1,2,3,4,5,
6 E. 1 & 2
I. 1, 2 & 3
OP 5. Outdoor Ad
Placement
City of
Sacramento
Department of
Utilities & PIO
Annually -
October N/A
OP 9. Levee Zone
Protection Map
California
Department of
Water Resources
Annually
September DWR

5. Political
Leaders (See
Entire list of
City Wide
Projects in 1.

Above)

See 1 above See 1
above Adopt and Fund the PPI Mayor and City
Council N/A N/A

6. Language
Barriers
A. Know your flood
hazard
B. You need flood
insurance
C. Protect people
from the flood
hazard
D. Protect your
property from the
hazard
E. Build
Responsibly
F. Protect Natural
Floodplain
Functions
I. General
Preparedness

A. 1, 2,3 &
4 B. 1,2, 3 &
4 C. 2 & 3
D.1,2,3,4,5,
6 E. 1 & 2
F. 1,2,& 3
I. 1, 2 & 3
OP 22. Translation
services available on
flood-related
information
City of
Sacramento
Department of
Utilities PIO, OES
Year-round N/A
OP 23. Bi-Lingual
Insurance Agents
(Spanish and Asian
Languages
Bi-Lingual
Insurance Agents
(Spanish and
Asian Languages)
As Needed
Year-round Insurance
Agents
Target Areas

3.Natomas
(North
Natomas/
A. Know your flood
hazard
B. You need flood
insurance
A. 1, 2,3 &
4 B. 1,2,3 &
4 OP 4. FEMA’s High
Water Mark Initiative
City of
Sacramento
Department of
Utilities & PIO
Year-round DWR/USACE/

USGS/FEMA

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 17
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Sacramento, CA 95822
Outreach Projects (OP)
Target
Audience
Message(s) Outcome Project(s) Assignment Schedule Stakeholder South
Natomas)

4.Greenhaven/
Pocket

5.Riverpark
Neighborhood
by Sac State

6. Rescue
Areas
(Defined by
Levee Breech
Scenarios)

Note: All
projects in
Target
Audience #1
(Entire City)
also apply to
these target
areas

C. Protect people
from the flood
hazard
D. Protect your
property from the
hazard
E. Build
Responsibly
F. Protect Natural
Floodplain
Functions
G. Levee
Preparedness
I. General
Preparedness

C. 2 & 3
D.1,2,3,4,5,
6 E. 1 & 2
F. 1,2,& 3
G. 1,2
I. 1, 2 & 3

OP 9. Levee Flood
Protection Zone Map
(DWR Flood Risk
Notification)
DWR Annually -
September

DWR/FEMA/
Cal EMA/
CVFPB/
USACE
OP 24. Levee Breach
Scenario Mapping for
18 Rescue Areas
City of
Sacramento
Department of
Utilities

Year-round Sacramento
County
OP 27. Flood Ready
Website
City of
Sacramento
Department of
Utilities
Year-round N/A
OP.30. Flood Insurance
Promotion of Website &
Newsletter
Congresswoman
Doris Matsui’s
Office
Year-round
Congresswom
an Doris
Matsui’s Office
OP 31. Flood Insurance
Outreach Letter
City of
Sacramento
Department of
Utilities
Annually N/A
Flood Response Projects (FRP)

1.Entire City

A. Know your flood
hazard Risks
C. Protect people
from the flood
hazard

A. 1, 2, 3, 4
& 5
C. 1, 2, 3, 4
& 5
FRP 1. Press Release
(TV, Radio,
Newspaper)
City of
Sacramento
Department of
Utilities & PIO
Release at
first flood
notice
N/A
FRP 3. Press Release
(Website, Social Media)
City of
Sacramento
Department of
Utilities & PIO
Release at
first flood
notice
N/A
FRP 6. After flood event
handouts
Community
Development &
City of
Sacramento
Department of
Utilities
Develop by
May1, 2015 N/A
FRP 2. Everbridge OES & PIOs
Release at
first flood
notice
N/A

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 18
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Sacramento, CA 95822
Outreach Projects (OP)
Target
Audience
Message(s) Outcome Project(s) Assignment Schedule Stakeholder FRP 4. Drinking Water
Quality Communication
(Website)
City of
Sacramento
Department of
Utilities
Release
once water
is
determined
to be
compromise
d
N/A

2. Combined
Sewer
System/Intern
al Drainage
A. Know your flood
hazard Risks
C. Protect people
from the flood
hazard

A. 1, 2, 3, 4
& 5
C. 1, 2, 3, 4
& 5
FRP 5. CSS Signage
City of
Sacramento
Department of
Utilities
Operations
Release at
first flood
notice
N/A

3. Flood
Damaged
Property
D. Protect your
property from the
hazard
E. Build
Responsibly

D. 1,2,4,6
E. 1,2,3
FRP 6. After flood event
handouts
Community
Development &
City of
Sacramento
Department of
Utilities
Leave at
damaged
structure
during
inspection
and/or
provide to
owners
upon re-
entry of area
N/A
FRP 7. Flood insurance
and grant information
handouts
Neighborhood
Services & City of
Sacramento
Department of
Utilities
Leave at
damaged
structure
during
inspection
and/or
provide to
owners
upon re-
entry of area
N/A

Insurance Coverage Improvement Plan
One of the City’s desired outcomes was increasing the number of flood insurance policies. The total number of policies has decreased. The increased X/AR/A99 policies are likely do to the elimination of the PRP policies. Decrease in total policies may have been attributed to the NFIP Risk Rating 2.0 new pricing methodology and an anticipated economic recession.

City of Sacramento Flood Insurance Policies
Year Total SFHA X/AR/A99 PRP Average
Premium
Community CRS Savings
June 2023 33,569 116 33,421 N/A $ 536 $ 1,919,263 Oct 2022 35,332 157 27,583 7,592 $ 496 $ 1,552,083

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 19
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Sacramento, CA 95822
Dec 2021 42,279 183 29,059 13,037 $ 522 $ 1,619,309 March 2019 43,400 285 27,762 15,353 $ 435 $ 1,508,853 January 2017 42,223 352 25,522 16,349 $ 465 $ 1,533,010 February 2016 43,937 360 22,170 21,407 $ 472 $ 1,401,157 April 2015 41,967 372 13,350 28,245 $ 514 $ 1,056,896 Source: Estimated Policy Data from FEMA CIS What-If Report June 2023 Repetitive Loss Area Analysis
The City staff is currently in the process updating the Repetitive Loss Area Analysis with the 2021 and 2022 Repetitive Loss Property List . Repetitive loss outreach letters w ere sent out March 2022 based on the 2021 and 2022 Repetitive Loss Property Lists.

Open Space Education
The largest open space within the City is the American River Parkway. The American River Parkway foundation continues to provide an American River Parkway Map which highlights recreational areas, the Parkway’s history, and many habitats located within the Parkway. The committee had no new recommendations for this outreach.

Stream Dumping Regulations
The PPI Committee discussed the City’s practice of requiring No Dumping Signs on our creeks and rivers, stenciling on our storm drain inlets, concrete stamping at new drain inlets, and providing a citywide mailer.

It was recommended that DOU Floodplain Management staff reach out to DOU Water Quality staff to see if they will be implementing new outreach material related to the trash -free waterways program. The Water Quality staff in conjunction with the Sacramento Stormwater Quality Partnership run a “Trash your Trash” campaign which encourages public to attend local clean -up events or organize their own. The campaign highlights that litter from sid ewalks, streets, parking lots and nature areas eventually find s its way into our rivers.

Flood Protection Assistance
The Committee discussed how the City still provides flooding information or property protec tion assistance to the public. Staff has used FEMA’s Hazard Mitigation Grant handouts to explain the different options and what may be beneficial to the resident. The Committee had no new recommendations on this item.

Levee and Dam Safety
The committee discussed the outreach projects regarding levee and dam safety. The California Department of Water Resources sent out their annual Flood Risk Notification in September 2022 to those property owners living behind levees. The City sent out an updated “Be Flood Ready, Plan Ahead, Levees are not Sacramento’s only Flood Risk”, Dams Brochure to city residents in September 2022 and will continue to send them annually.

ADDENDUM 1. Program for Public Information
City of Sacramento Department of Utilities 20
916-808-1400 July 12, 2023
1395 35th Avenue
Sacramento, CA 95822
Attachment 1
Program for Public Information Committee
2022 Annual Review
Agenda

DATE AND TIME: Sep 28, 2022, 3-4PM
ZOOM MEETING:
https://cityofsacramento-org.zoom.us/j/92242627560?pwd=L253ck1xSlRMTWFSY1UxeWhlbTFqZz09 PW: 830448

INVITED ATTENDEES: Jamie McKinley, Rosa Millino, Neal Joyce, Jessica McCabe, Remi Mendoza, Brigid Burdock, Deniece Ross-Francom, Allison Benevento
MEETING MATERIALS:
 Comprehensive Flood Management Plan (CFMP) -
http://www.cityofsacramento.org/Utilities/Education/Flood-Ready/City-Flood-Prep  Flood Ready Website Pages - http://www.cityofsacramento.org/floodready

1. Welcome
a. CRS and the PPI Program

2. Review of Flood Response Preparation (CFMP Pages E.1 to E.15) Pg 293-316 a. Review of Flood Response Preparation Projects
b. Evaluation of Projects
c. Future Needs

3. Insurance Coverage Improvement Plan (CFMP Pages 7.17 to 7.23 & Topic B) Pg 153-159 a. Coverage Improvement Plan Project Review
b. Evaluation of Projects
c. Future Needs

4. Repetitive Loss Area Analysis (CFMP Pages D.1 to D.62) Pg 225-292 a. Review of Repetitive Loss Area Analysis
b. Discuss Outreach Efforts
c. Committee Comments

5. Review of the Program of Public Information (CFMP 7.1 to 7.40) Pg 137-176 a. Outreach Projects Implementation Review (CFMP 7.33 to 7.38) Pg 169-174 b. Evaluation of Projects
c. Future Needs

6. Member Recommendations

ACTION ITEMS
RESOLUTION NO. 2023-XXXX
Adopted by the Sacramento City Council

August 15, 2023

ADOPTION OF THE
REPETITIVE LOSS AREA ANALYSIS, APPENDIX D. AND THE PROGRAM FOR PUBLIC INFORMATION, ADDENDUM 1. TO THE COMPREHENSIVE FLOOD

MANAGEMENT PLAN

BACKGROUND
A. The Repetitive Loss Area Analysis (RLAA) is a detailed mitigation plan for a repetitive loss area.

B. The RLAA provides more specific guidance on how to reduce damage from repetitive flooding by following five steps for an area analysis. The five analysis steps must evaluate each building in the repetitive loss areas and include: advising all property owners in repetitive loss areas that an analysis is being conducted and requesting their input; contacting agencies or organization that may have plans or studies that could affect the cause or impacts of the flooding; visiting each building in the repetitive loss area to collect basic data; reviewing alternative approaches to determine feasible property protection measures or drainage improvements; and documenting the findings and analyzing each area.

C. The Program for Public Information (PPI) is an ongoing effort to prepare, implement and monitor a range of public information activities best suited for the City’s flood problems. The PPI provides information that is designed to meet local needs and is monitored, evaluated, and revised to improve its effectiveness.

D. The RLAA is part of the Comprehensive Flood Management Plan (CFMP) which established a strategic, comprehensive management approach to reducing flood risk through the implementation of seven risk reduction tools utilized by the City.

E. The adoption of the RLAA and the PPI also improves the City’s Community Rating System (CRS) program, which results in discounted flood insurance premiums for City residents, renters, and businesses. Currently, the savings to the community is approximately $1.5 million annually.

BASED ON THE FACTS SET FORTH IN THE BACKGROUND, THE CITY COUNCIL RESOLVES AS FOLLOWS:

Section 1. The City Council adopts the Repetitive Loss Area Analysis, Appendix D and Program for Public Information, Addendum 1 as an official plan.

Section 2. The Department of Utilities shall continue to advance the City’s standing in the CRS program including updating CRS activities in the RLAA and the PPI under this Resolution. Updates to the RLAA and PPI will be presented to City Council for adoption every three years or in coordination with the CRS Cycle Verification visits.

Adopted by the City of Sacramento City Council on August 22, 2023, by the following vote:

Ayes:

Noes:

Abstain:

Absent:

Attest:

The presence of an electronic signature certifies that the foregoing is a true and correct copy as approved by the Sacramento City Council.