# Changes in Flood Hazard Determinations > Briefs, arguments, decisions, and more. URL: https://www.frixlaw.com/law-library/documents/fr%3A2026-09847 ## Record - **Collection:** Federal Register - **Document type:** Notice - **Published:** May 18, 2026 - **Citation:** 91 FR 28610 ## Text DEPARTMENT OF HOMELAND SECURITY Federal Emergency Management Agency [Docket ID FEMA-2025-0002; Internal Agency Docket No. FEMA-B-2603] Changes in Flood Hazard Determinations AGENCY: Federal Emergency Management Agency, Department of Homeland Security. ACTION: Notice. SUMMARY: This notice lists communities where the addition or modification of Base Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, or the regulatory floodway (hereinafter referred to as flood hazard determinations), as shown on the Flood Insurance Rate Maps (FIRMs), and where applicable, in the supporting Flood Insurance Study (FIS) reports, prepared by the Federal Emergency Management Agency (FEMA) for each community, is appropriate because of new scientific or technical data. The FIRM, and where applicable, portions of the FIS report, have been revised to reflect these flood hazard determinations through issuance of a Letter of Map Revision (LOMR), in accordance with Federal Regulations. The current effective community number is shown in the table below and must be used for all new policies and renewals. DATES: These flood hazard determinations will be finalized on the dates listed in the table below and revise the FIRM panels and FIS report in effect prior to this determination for the listed communities. From the date of the second publication of notification of these changes in a newspaper of local circulation, any person has 90 days in which to request through the community that the Assistant Administrator, Federal Insurance Directorate, Resilience reconsider the changes. The flood hazard determination information may be changed during the 90-day period. ADDRESSES: The affected communities are listed in the table below. Revised flood hazard information for each community is available for inspection at both the online location and the respective community map repository address listed in the table below. Additionally, the current effective FIRM and FIS report for each community are accessible online through the FEMA Map Service Center at https://msc.fema.gov for comparison. Submit comments and/or appeals to the Chief Executive Officer of the community as listed in the table below. FOR FURTHER INFORMATION CONTACT: David N. Bascom, Acting Director, Engineering and Modeling Division, Federal Insurance Directorate, Resilience, FEMA, 400 C Street SW, Washington, DC 20472, or (email) david.bascom@fema.dhs.gov; or visit the FEMA Mapping and Insurance eXchange (FMIX) online at https://www.floodmaps.fema.gov/fhm/fmx_main.html. SUPPLEMENTARY INFORMATION: The specific flood hazard determinations are not described for each community in this notice. However, the online location and local community map repository address where the flood hazard determination information is available for inspection is provided. Any request for reconsideration of flood hazard determinations must be submitted to the Chief Executive Officer of the community as listed in the table below. The modifications are made pursuant to section 201 of the Flood Disaster Protection Act of 1973, 42 U.S.C. 4105, and are in accordance with the National Flood Insurance Act of 1968, 42 U.S.C. 4001 et seq., and with 44 CFR part 65. The FIRM and FIS report are the basis of the floodplain management measures that the community is required either to adopt or to show evidence of having in effect in order to qualify or remain qualified for participation in the National Flood Insurance Program (NFIP). These flood hazard determinations, together with the floodplain management criteria required by 44 CFR 60.3, are the minimum that are required. They should not be construed to mean that the community must change any existing ordinances that are more stringent in their floodplain management requirements. The community may at any time enact stricter requirements of its own or pursuant to policies established by other Federal, State, or regional entities. The flood hazard determinations are in accordance with 44 CFR 65.4. The affected communities are listed in the following table. Flood hazard determination information for each community is available for inspection at both the online location and the respective community map repository address listed in the table below. Additionally, the current effective FIRM and FIS report for each community are accessible online through the FEMA Map Service Center at https://msc.fema.gov for comparison. (Catalog of Federal Domestic Assistance No. 97.022, “Flood Insurance.”) Elizabeth Asche, Assistant Administrator, Federal Insurance Directorate, Resilience, Federal Emergency Management Agency, Department of Homeland Security. State and county Location and case No. Chief executive officer of community Community map repository Online location of letter of map revision Date of modification Community No. Arizona: Graham Town of Thatcher (24-09-0863P) The Honorable Jenny Howard, Mayor, Town of Thatcher, 3700 West Main Street, Thatcher, AZ 85552 Public Works Department, 3700 West Main Street, Thatcher, AZ 85552 https://msc.fema.gov/portal/advanceSearch Apr. 30, 2026 040117 Graham Unincorporated areas of Graham County (24-09-0863P) The Honorable Clay Mack, Chair, Graham County Board of Supervisors, 921 West Thatcher Boulevard, Safford, AZ 85546 Graham County General Services Building, 921 West Thatcher Boulevard, Safford, AZ 85546 https://msc.fema.gov/portal/advanceSearch Apr. 30, 2026 040032 Maricopa City of Buckeye (25-09-0055P) The Honorable Eric Orsborn, Mayor, City of Buckeye, 530 East Monroe Avenue, Buckeye, AZ 85326 City Hall, 945 North 215th Avenue, Suite 137, Buckeye, AZ 85326 https://msc.fema.gov/portal/advanceSearch Apr. 17, 2026 040039 Maricopa City of Buckeye (25-09-0372P) The Honorable Eric Orsborn, Mayor, City of Buckeye, 530 East Monroe Avenue, Buckeye, AZ 85326 City Hall, 945 North 215th Avenue, Suite 137, Buckeye, AZ 85326 https://msc.fema.gov/portal/advanceSearch Apr. 20, 2026 040039 Maricopa City of Buckeye (25-09-0623P) The Honorable Eric Orsborn, Mayor, City of Buckeye, 530 East Monroe Avenue, Buckeye, AZ 85326 City Hall, 945 North 215th Avenue, Suite 137, Buckeye, AZ 85236 https://msc.fema.gov/portal/advanceSearch Apr. 17, 2026 040039 Maricopa City of Chandler (25-09-0313P) The Honorable Kevin Hartke, Mayor, City of Chandler, 175 South Arizona Avenue, Chandler, AZ 85225 City Hall, 175 South Arizona Avenue, Chandler, AZ 85225 https://msc.fema.gov/portal/advanceSearch Apr. 9, 2026 040040 Maricopa City of Glendale (25-09-0021P) The Honorable Jerry P. Weiers, Mayor, City of Glendale, 9494 West Maryland Avenue, Glendale, AZ 85305 City Hall, 200 West Washington Street, Phoenix, AZ 85003 https://msc.fema.gov/portal/advanceSearch Apr. 10, 2026 040045 Maricopa City of Phoenix (25-09-0641P) The Honorable Kate Gallego, Mayor, City of Phoenix, 200 West Washington Street, 11th Floor, Phoenix, AZ 85003 City Hall, 200 West Washington Street, Phoenix, AZ 85003 https://msc.fema.gov/portal/advanceSearch Apr. 10, 2026 040051 Maricopa City of Scottsdale (25-09-0723P) The Honorable Lisa Borowsky, Mayor, City of Scottsdale, 3939 North Drinkwater Boulevard, Scottsdale, AZ 85251 Stormwater and Floodplain Management, 7447 East Indian School Road, Scottsdale, AZ 85251 https://msc.fema.gov/portal/advanceSearch Apr. 30, 2026 045012 Maricopa Unincorporated areas of Maricopa County (25-09-0021P) Jennifer Pokorski, Maricopa County Manager, 301 West Jefferson Street, Phoenix, AZ 85003 Flood Control District of Maricopa County, 2801 West Durango Street, Phoenix, AZ 85009 https://msc.fema.gov/portal/advanceSearch Apr. 10, 2026 040037 Maricopa Unincorporated areas of Maricopa County (25-09-0055P) Jennifer Pokorski, Maricopa County Manager, 301 West Jefferson Street, Phoenix, AZ 85003 Flood Control District of Maricopa County, 2801 West Durango Street, Phoenix, AZ 85009 https://msc.fema.gov/portal/advanceSearch Apr. 17, 2026 040037 Maricopa Unincorporated areas of Maricopa County (25-09-0623P) Jennifer Pokorski, Maricopa County Manager, 301 West Jefferson Street, Phoenix, AZ 85003 Flood Control District of Maricopa County, 2801 West Durango Street, Phoenix, AZ 85009 https://msc.fema.gov/portal/advanceSearch Apr. 17, 2026 040037 Pima City of Tucson (23-09-0429P) The Honorable Regina Romero, Mayor, City of Tucson, 255 West Alameda Street, Tucson, AZ 85701 Planning and Development Services, 201 North Stone Avenue, 1st Floor, Tucson, AZ 85701 https://msc.fema.gov/portal/advanceSearch Apr. 13, 2026 040076 Pima Unincorporated Areas of Pima County (23-09-0429P) Jan Lesher, County Administrator, Pima County, 115 North Church Avenue, Suite 231,Tucson, AZ 85701 Pima County Regional Flood Control District, 201 North Stone Avenue, 9th Floor, Tucson, AZ 85701 https://msc.fema.gov/portal/advanceSearch Apr. 13, 2026 040073 Pinal Town of Florence (25-09-0443P) The Honorable Keith Eaton, CBO, CFM, CFO, Mayor, Town of Florence, 775 North Main Street, Florence, AZ 85132 Town of Florence, 775 North Main Street, Florence, AZ 85132 https://msc.fema.gov/portal/advanceSearch Apr. 17, 2026 040084 California: Alameda City of Livermore (24-09-0948P) Marianna Burch, City Manager, City of Livermore, 1051 South Livermore Avenue, Livermore, CA 94550 City Hall, 1051 South Livermore Avenue,Livermore, CA 94550 https://msc.fema.gov/portal/advanceSearch Apr. 29, 2026 060008 Alameda City of Pleasanton (24-09-0948P) The Honorable Jack Balch, Mayor, City of Pleasanton, P.O. Box 520, Pleasanton, CA 94566 City Hall, 123 Main Street, Pleasanton, CA 94566 https://msc.fema.gov/portal/advanceSearch Apr. 29, 2026 060012 Alameda Unincorporated areas of Alameda County (24-09-0948P) Susan S. Muranishi, Alameda County Administrator, 1221 Oak Street, Oakland, CA 94612 Alameda County Public Works Agency, 399 Elmhurst Street, Hayward, CA 94544 https://msc.fema.gov/portal/advanceSearch Apr. 29, 2026 060001 Contra Costa City of Concord (25-09-0389P) The Honorable Carlyn Obringer, Mayor, City of Concord, 1950 Parkside Drive, Concord, CA 94519 City Hall, 1950 Parkside Drive, Concord, CA 94519 https://msc.fema.gov/portal/advanceSearch Apr. 22, 2026 065022 Contra Costa Unincorporated areas of Contra Costa County (25-09-0389P) Monica Nino, Contra Costa County Administrator, 1025 Escobar Street, Martinez, CA 94553 Contra Costa County Public Works Department, 255 Glacier Drive, Martinez, CA 94553 https://msc.fema.gov/portal/advanceSearch Apr. 22, 2026 060025 Fresno Unincorporated areas of Fresno County (26-09-0081P) Paul Nerland, Fresno County Administrative Officer, 2220 Tulare Street, 6th Floor, Fresno, CA 93721 Fresno County Clerk Office, 2220 Tulare Street, Fresno, CA 93721 https://msc.fema.gov/portal/advanceSearch Apr. 30, 2026 065029 Orange Unincorporated areas of Orange County (25-09-0245P) Michelle Aguirre, CEO, Orange County, 400 West Civic Center Drive, Santa Ana, CA 92701 Orange County Public Works, 601 North Ross Street, Santa Ana, CA 92701 https://msc.fema.gov/portal/advanceSearch Apr. 6, 2026 060212 Placer City of Lincoln (24-09-1115P) The Honorable Holly Andreatta, Mayor, City of Lincoln, 600 6th Street, Lincoln, CA 95648 City Hall, 600 6th Street, Lincoln, CA 95648 https://msc.fema.gov/portal/advanceSearch Apr. 20, 2026 060241 Placer Unincorporated areas of Placer County (24-09-1115P) Daniel Chatigny, County Executive Officer, Placer County, 175 Fulweiler Avenue, Auburn, CA 95603 Placer County, Public Works Department, 3091 County Center Drive, Auburn, CA 95603 https://msc.fema.gov/portal/advanceSearch Apr. 20, 2026 060239 Riverside Unincorporated areas of Riverside County (24-09-0652P) The Honorable V. Manuel Perez, Chair, Riverside County Board of Supervisors, 4080 Lemon Street, 5th Floor, Riverside, CA 92501 Riverside County Flood Control District Building, 1995 Market Street, Riverside, CA 92501 https://msc.fema.gov/portal/advanceSearch Apr. 23, 2026 060245 San Bernardino City of Colton (24-09-0652P) The Honorable Frank J. Navarro, Mayor, City of Colton, 650 North La Cadena Drive, Colton, CA 92324 Corporate Yard, 160 South 10th Street, Colton, CA 92324 https://msc.fema.gov/portal/advanceSearch Apr. 23, 2026 060273 Tulare. City of Farmersville (25-09-0374P) The Honorable Tina Hernandez, Mayor, City of Farmersville, 909 West Visalia Road, Farmersville, CA 93223 City Hall, 909 West Visalia Road, Farmersville, CA 93223 https://msc.fema.gov/portal/advanceSearch Apr. 29, 2026 060405 Tulare Unincorporated areas of Tulare County(25-09-0374P) Jason T. Britt, County Administrative Officer, Tulare County, 2800 West Burrel Avenue, Visalia, CA 93291 Tulare County, Administration Building, 2800 West Burrel Avenue, Visalia, CA 93291 https://msc.fema.gov/portal/advanceSearch Apr. 29, 2026 065066 Ventura City of Camarillo (25-09-0983P) Greg Ramirez, City Manager, City of Camarillo, 601 Carmen Drive, Camarilla, CA 93010 City Hall, 601 Carmen Drive, Camarillo, CA 93010 https://msc.fema.gov/portal/advanceSearch Apr. 9, 2026 065020 Ventura City of Thousand Oaks (25-09-0238P) Andrew Powers, City Manager, City of Thousand Oaks, 2100 East Thousand Oaks Boulevard, Thousand Oaks, CA 91362 City Hall, 2100 East Thousand Oaks Boulevard, Thousand Oaks, CA 91362 https://msc.fema.gov/portal/advanceSearch Apr. 29, 2026 060422 Ventura Unincorporated areas of Ventura County (25-09-0983P) The Honorable Janice S. Parvin, Chair, Board of Directors, Ventura County, 980 Enchanted Way, Suite 203, Simi Valley, CA 93065 Ventura County Government Center, 800 South Victoria Avenue, Ventura, CA 93009 https://msc.fema.gov/portal/advanceSearch Apr. 9, 2026 060413 Colorado: Adams City of Thornton (25-08-0358P) The Honorable Jan Kulmann, Mayor, City of Thornton, 9500 Civic Center Drive, Thornton, CO 80229 City Hall, 9500 Civic Center Drive,Thornton, CO 80229 https://msc.fema.gov/portal/advanceSearch Apr. 10, 2026 080007 Adams Unincorporated areas of Adams County (25-08-0358P) The Honorable Lynn Baca, Chair, Adams County Board of Commissioners, 4430 South Adams County Parkway, Brighton, CO 80601 Adams County Community and Economic Development, 4430 South Adams County Parkway, 1st Floor, Suite W2000, Brighton, CO 80601 https://msc.fema.gov/portal/advanceSearch Apr. 10, 2026 080001 Arapahoe Unincorporated areas of Arapahoe County (25-08-0088P) The Honorable Leslie Summey, Chair, Arapahoe County Board of Commissioners, 5334 South Prince Street, Littleton, CO 80120 Arapahoe County, Public Works and Development Department, 6924 South Lima Street, Centennial, CO 80112 https://msc.fema.gov/portal/advanceSearch Apr. 17, 2026 080011 Boulder Unincorporated areas of Boulder County, (25-08-0480P) The Honorable Marta Loachamin, Chair, Boulder County Board of Commissioners, Post Office Box 471, Boulder, CO 80306 Boulder County Community, Planning and Permitting Building, 2045 13th Street, Boulder, CO 80302 https://msc.fema.gov/portal/advanceSearch Apr. 13, 2026 080023 Denver City and County of Denver, (25-08-0088P) The Honorable Mike Johnston, Mayor, City and County of Denver, 1437 North Bannock Street, Room 350, Denver, CO 80202 City and County of Denver, Department of Public Works, 201 West Colfax Avenue, Denver, CO 80202 https://msc.fema.gov/portal/advanceSearch Apr. 17, 2026 080046 Idaho: Ada City of Eagle (25-10-0597P) The Honorable Brad Pike, Mayor, City of Eagle, 660 East Civic Lane, Eagle, ID 83616 City Hall, 660 East Civic Lane, Eagle, ID 83616 https://msc.fema.gov/portal/advanceSearch Apr. 23, 2026 160003 Ada City of Star (25-10-0597P) The Honorable Trevor A. Chadwick, Mayor, City of Star, 10769 West State Street, Star, ID 83669 City Hall, 10769 West State Street, Star, ID 83669 https://msc.fema.gov/portal/advanceSearch Apr. 23, 2026 160236 Ada Unincorporated areas of Ada County (25-10-0597P) The Honorable Rod Beck, Chair, Ada County Board of Commissioners, 200 West Front Street, Boise, ID 83702 Ada County Courthouse, 200 West Front Street, Boise, ID 83702 https://msc.fema.gov/portal/advanceSearch Apr. 23, 2026 160001 Canyon Unincorporated areas of Canyon County (24-10-0254P) The Honorable Brad Holton, Chair, Canyon County Board of County Commissioners, 1115 Albany Street, Room 101, Caldwell, ID 83605 Canyon County Development Services Department, 111 North 11th Avenue, Room 310, Caldwell, ID 83605 https://msc.fema.gov/portal/advanceSearch Apr. 20, 2026 160208 Nevada: Clark Unincorporated areas of Unincorporated Areas (25-09-0382P) The Honorable Tick Segerblom, Chair, Clark County Board of Commissioners, 500 South Grand Central Parkway, Las Vegas, NV 89155 Clark County Clerk's Office, 500 South Grand Central Parkway, Las Vegas, NV 89155 https://msc.fema.gov/portal/advanceSearch Apr. 14, 2026 320003 Lyon City of Fernley (25-09-0167P) The Honorable Neal E. McIntyre, Mayor, City of Fernley, 595 Silver Lace Boulevard, Fernley, NV 89408 Public Works Department, 595 Silver Lace Boulevard, Fernley, NV 89408 https://msc.fema.gov/portal/advanceSearch Apr. 13, 2026 320038 Oregon: Benton Unincorporated areas of Benton County (25-10-0121P) Rachel McEneny, Benton County Administrator, P.O. Box 3020, Corvallis, OR 97339 Benton County Community Development Department, 4500 Southwest Research Way, Corvallis, OR 97333 https://msc.fema.gov/portal/advanceSearch Apr. 29, 2026 410008 Clackamas City of Happy Valley (25-10-0093P) Jason Tuck, ICMA-CM, City Manager, City of Happy Valley, 1600 Southeast Misty Drive, Happy Valley, OR 97086 City Hall, 1600 Southeast Misty Drive, Happy Valley, OR 97086 https://msc.fema.gov/portal/advanceSearch Apr. 13, 2026 410026 Washington City of Tualatin (25-10-0157P) Sherilyn Lombos, City Manager, City of Tualatin, 18880 Southwest Martinazzi Avenue, Tualatin, OR 97062 City Offices, 18880 Southwest Martinazzi Avenue, Tualatin, OR 97062 https://msc.fema.gov/portal/advanceSearch April 15, 2026 410277 North Dakota: Cass City of Horace (25-08-0230P) The Honorable Jeff Trudeau, Mayor, City of Horace, P.O. Box 99, Horace, ND 58047 City Hall, 215 Park Drive East, Horace, ND 58047 https://msc.fema.gov/portal/advanceSearch Apr. 13, 2026 380022 South Dakota: Lawrence City of Spearfish (25-08-0037P) The Honorable John Senden, Mayor, City of Spearfish, 625 North 5th Street, Spearfish, SD 57783 City Hall, 625 North 5th Street, Spearfish, SD 57783 https://msc.fema.gov/portal/advanceSearch Apr. 30, 2026 460046 Meade City of Sturgis (25-08-0221P) The Honorable Kevin Forrester, Mayor, City of Sturgis, 1040 Harley-Davidson Way, Sturgis, SD 57785 Administrative Building, 1040 Harley-Davidson Way, Sturgis, SD 57785 https://msc.fema.gov/portal/advanceSearch May 6, 2026 460055 Utah: Davis City of Layton (24-08-0321P) The Honorable Joy Petro, Mayor, City of Layton, 437 North Wasatch Drive, Layton, UT 84041 Engineering Division, 437 North Wasatch Drive, Layton, UT 84041 https://msc.fema.gov/portal/advanceSearch Apr. 14, 2026 490047 Weber. City of Ogden (25-08-0165P) The Honorable Benjamin K. Nadolski, Mayor, City of Ogden, 2549 Washington Boulevard, Ogden, UT 84401 City Hall, 2549 Washington Boulevard, Ogden, UT 84401 https://msc.fema.gov/portal/advanceSearch Apr. 10, 2026 490189 Washington: Clark City of Washougal (24-10-0232P) David Scott, City Manager, City of Washougal, 1701 C Street, Washougal, WA 98671 City Hall, 1701 C Street, Washougal, WA 98671 https://msc.fema.gov/portal/advanceSearch Apr. 9, 2026 530028 Clark Unincorporated areas of Clark County (24-10-0232P) Kathleen Otto, County Manager, Clark County, P.O. Box 9810, Vancouver, WA 98666 Clark County Public Service Center, 1300 Franklin Street, Vancouver, WA 98666 https://msc.fema.gov/portal/advanceSearch Apr. 9, 2026 530024 [FR Doc. 2026-09847 Filed 5-15-26; 8:45 am] BILLING CODE 9110-12-P --- Source: Frix Law Library, https://www.frixlaw.com/law-library/documents/fr%3A2026-09847. Public record. Not legal advice.