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County advances flood-management planning; Sligo Creek pilot map to be published this summer
Summary
Montgomery County DEP described progress on a countywide flood-management plan that models 11 watersheds, with Sligo Creek as a pilot. The plan updates rainfall and impervious-area assumptions, will produce public web maps, and raises potential changes to planning and building-code approaches to reduce future flood risk.
Montgomery County Department of Environmental Protection officials told the Transportation and Environment Committee on March 17 that phase 2 of a comprehensive flood-management plan is underway and that watershed modeling for 11 watersheds should be complete by the end of 2027, starting with a Sligo Creek pilot.
The planning work will use updated precipitation and development assumptions, generate publicly accessible maps, and inform a later round of policy and capital decisions. DEP staff emphasized that the planning work is intended to identify where future flooding risk will rise with climate change and to develop project and policy responses that consider racial equity and social vulnerability.
Stan Edwards, chief of the division of energy, climate compliance and DEP’s lead on…
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