173 and 176 Perry Street – Flood Mitigation

Langan provided engineering design services related to dry flood proofing of existing residential buildings in the West Village in Lower Manhattan. Our services included preparation of a number of flood barrier schemes, and preparation of plans and specifications for the selected design. Our design included pumps to be installed on the dry side of the flood wall to collect water from seepage and rain during storm events and seepage under the wall. Langan also developed an interim flood mitigation strategy prior to the construction of the permanent system.