Monday, January 4, 2016

New Maps in Bennington County!

The long-anticipated Bennington County Digital Flood Insurance Rate Map became effective 12/2/2015.  The data can now be found online at:




The FEMA Map Service Center allows users to search by address and find the effective and historic flood maps for any location.  The MSC also has the Flood Insurance Study and Letters of Map Amendment.  Outside of the areas with Digital Flood Insurance Rate Maps the MSC has scanned copies of the “white/paper” FIRMs.

The Vermont Natural Resource Atlas has two online platforms.  The Html 5 version can be used by all computers and browsers.  The Silverlight version requires Internet Explorer and a PC that can load the Microsoft Silverlight software (a fairly quick process).

Where there are DFIRMs available, the MSC allows users to download GIS versions of the Special Flood Hazard Areas and other vector data.

The Vermont Center for Geographic Information will also post the GIS data later this month.

On the Flood Ready Atlas you can find a specialized layer for Flood Hazard Mapping that shows areas of Vermont with effective DFIRMs.

With the process in Bennington County completed no other flood map updates are scheduled by FEMA in Vermont.  This leaves large areas of the state with old maps needing attention.  Any future map work by FEMA will be handled through the RiskMAP approach.  RiskMAP uses a HUC-8 watershed boundary as the basis of map updates.  This would be the equivalent of the Missisquoi or Passumpsic River watersheds.