Lyon County flood risk mapping effort continues Featured

Flooding caused significant damage to Lyon County's gravel road network last year. The county's effort to update its risk map continues independent of last year's flooding or any floods that develop this year. Flooding caused significant damage to Lyon County's gravel road network last year. The county's effort to update its risk map continues independent of last year's flooding or any floods that develop this year. KVOE News file photo

Lyon County continues its work to adjust the flood risk map.


Zoning and Floodplain Administrator Sam Seeley says the use of lidar technology nine years ago will provide a much clearer picture of which areas have some flooding risk and which ones don't.

Seeley says the current mapping effort dates back to 2017. It builds on efforts from a decade earlier, when county data from the 1970s was loaded into special software. The county then used lidar in 2011.

Seeley says last year's flooding has no bearing on the current mapping effort. He says the maps change based on what can flood, according to the 2011 data, instead of what has flooded.

The official preliminary map may come later this year. A 90-day appeals window will follow. For more information, call Seeley at 341-3271, go online to www.lyoncounty.org or find Lyon County Planning, Zoning and Floodplain Management on Facebook.

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