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Pearl Harbor Memorial Bridge (Q-Bridge) Floodplain Analysis – New Haven, CT

Q-Bridge Floodplain Analysis

GM2 prepared a floodplain analysis for the purposes of Department of Environmental Protection Floodplain Management Permitting. This analysis required the recreation of original FEMA Floodplain data with the use of the ACOE computer program HEC-RAS. GM2 evaluated and compared water surface profiles and velocities in order to determine if there would be significant changes to the FEMA regulated A-zones (regarding base flood elevations) or the regulated V-zones (regarding the velocities of the base flood) following the replacement of the proposed Q-Bridge.

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