Uploaded August 2026 | Updated September 2026, 2 hours ago

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Need a Base Flood Elevation, or BFE, for a site in a FEMA-mapped floodplain? This video shows how to find BFEs for lakes/basins with Zone A, or approximate zones.
Related videos:
• Finding Base Flood Elevations (BFEs): What Type of FEMA Map and Floodplain Do I Have?
• Finding Base Flood Elevations (BFEs) for Zone AE Lakes (detailed study lakes)
• Finding Base Flood Elevations (BFEs) for Zone A Watercourses (approximate study watercourses)
• Finding Base Flood Elevations (BFEs) for Zone AE Watercourses (detailed study watercourses)

Helpful related websites:
• “Is My House In the Floodplain” video – youtube.com/watch?v=lEz8kjiuLdY
• DNR’s Finding flood maps page - dnr.state.mn.us/waters/watermgmt_section/floodplain/access-flood-maps.html
• FEMA Map Service Center (MSC) - msc.fema.gov/portal/home
• DNR’s Finding Base Flood Elevations (BFEs) page - dnr.state.mn.us/waters/watermgmt_section/floodplain/bfe.html
• DNR Lake & Flood Elevations Online (LFEO) viewer - lfeo.dnr.state.mn.us/#/lat/46.4055/lng/-94.2779/z/6
• DNR Estimating the 100-Year (1% Annual Chance) Flood Elevation on Lakes with “Shoreland Method” - files.dnr.state.mn.us/publications/waters/floodplain-management-fact-sheet.pdf
• FEMA National Flood Hazard Layer (to see LOMAs/LOMR-Fs turn on “LOMA” Layer - hazards-fema.maps.arcgis.com/apps/webappviewer/index.html?id=8b0adb51996444d4879338b5529aa9cd
• FEMA Flood Map Changes Viewer (to see preliminary and pending new maps) - hazards-fema.maps.arcgis.com/apps/webappviewer/index.html?id=5852ea902db44e55bfce395799315f9c
• DNR MNTOPO 2 site - mntopo.gis.data.mn.gov/?lat=43.84220&lng=-91.57780&z=19

dnr.state.mn.us/waters/watermgmt_section/floodplain/training.html