Project Overview

ATM was contacted by a group of homeowners to determine if the effective flood maps in their area accurately depicted the true flood hazards and zones. The isolated peninsula neighborhood was located within the tidal marshes behind a barrier island and ATM’s feasibility analysis determined that using improved topographic survey data and FEMA approved wave transect analysis would show that a majority of the area could be remapped as FEMA AE Zone versus the effective VE Zone. A detailed coastal risk analysis was conducted according to FEMA guidelines and ATM submitted a LOMR package reflecting the proposed changes and coordinated with FEMA for additional requests and analysis until the changes became effective. In the end, all structures in the study area were successfully changed from a VE to AE zone. Substantial savings on homeowners flood insurance was realized based on the revised maps.

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