Hundreds of Scottsdale residents in the Grayhawk master-planned community have been removed from the Rawhide Wash 100-year flood plain. This revision to the flood insurance rate maps means pricey flood insurance is no longer mandatory for those home owners with a federally-backed mortgage that are now outside the boundaries of the 100-year flood plain. Those residents can request a flood hazard determination online and provide the information to their mortgage company with a request to cancel flood insurance. Contact the city of Scottsdaleā€™s floodplain administrator at 480-312-4317 for more info.