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Lack of Flood Maps at Many U.S. Military Bases Creates Risks

Offutt Air Force Base_battling_flood_waters_190317-F-IT794-1053

An aerial view of Offutt Air Force Base affected by major flood waters March 17, 2019. An increase in water levels of surrounding rivers and waterways caused by record-setting snowfall over the winter in addition to a large drop in air pressure caused widespread flooding across the state of Nebraska. (U.S. Air Force photo by TSgt. Rachelle Blake)

By Dr. Marc Kodack

The 2019 National Defense Authorization Act (NDAA) required that for any proposed major or minor U.S. military construction project within the Department of Defense (DoD), the Pentagon must disclose to Congress whether or not that project is located within the 100-year floodplain. DoD was to use the most recent Federal Emergency Management Agency (FEMA) flood hazard data. If the FEMA data were unavailable, DoD was directed to create a process to determine the 100-year floodplain through risk analysis that conforms to standards used in federal flood risk assessments (see here). Elsewhere in the same NDAA, Congress required that climate resiliency be included in master plans for major military installations, although it did not define “major military installation.” Resiliency includes the ability of an installation to “avoid, prepare for, minimize the effect of, adapt to, and recover from extreme weather events…(Section 2805).” (more…)