FEMA Flood Insurance Rate Maps for Levee Areas Officially Effective Today!

Beginning today, Tuesday, March 7, 2017, 1,700 properties behind the Big Sioux River are no longer within a special flood hazard area, as the flood insurance rate maps adoption process has completed its final stage. These properties are now protected by the levee flood control system. While property owners in this area have been able to apply for building permits since September 7, as of today they no longer are required to maintain flood insurance.

The Federal Emergency Management Agency (FEMA) flood insurance rate maps for Sioux Falls have been available for public review since June 30, 2015, when the maps were distributed to the City of Sioux Falls for comments and appeals. At that time, the process to complete the review was estimated to take 10 to 16 months. The appeals period ended on March 20, 2016, and FEMA issued the Letter of Final Determination on September 7, 2016. The Floodplain Management Ordinance was adopted by the City Council and became effective on August 26, 2016.

In 2009, the City of Sioux Falls advanced funds to ensure the levee improvement project was completed in a timely manner and to expedite the process of updating these maps. After more than 14 years of work and a project cost of approximately $65 million, the U.S. Army Corps of Engineers accredited Sioux Falls’ levee system in fall 2014.

For more information regarding the flood insurance rate maps, contact the Floodplain Administrator at 605-367-8888 or the Federal Emergency Management Agency at 303-235-4835. General information is also available at www.fema.gov/national-flood-insurance-program-flood-hazard-mapping.