DATE: May 14, 2018
TO: Board of Mayor and Aldermen
FROM: Eric Stuckey, City Administrator
Paul Holzen, Director of Engineering
Jonathan Marston, Assistant Director of Engineering
William Banks, Staff Engineer
SUBJECT:
title
Consideration of the USACE Harpeth River Watershed Feasibility Study and the Recommended Project Options for the City of Franklin (Flood Study, CORP of Engineers) (05/22/18 WS)
body
Purpose
The purpose of this memorandum is to provide information to the Franklin Board of Mayor and Aldermen (BOMA) concerning how to move forward with the USACE Harpeth River Watershed Feasibility Study
Background
The May 2010 flood event created devastation throughout the Harpeth River Watershed and caused 4 fatalities and over $480 million in direct economic impacts in the Harpeth River Watershed alone. For this reason, the Department of the Army represented by the United States Army Corp of Engineers (USACE) conducted a preliminary reconnaissance of the Harpeth River Watershed and found over 850 structures in the regulated floodplain within the basin located in the City of Brentwood, City of Franklin, Williamson County, and Davidson County. In addition, they found aquatic ecosystem issues throughout the basin primarily involving stream bank erosion and loss of riparian buffers.
On June 13, 2013, the USACE, City of Franklin, Metropolitan Nashville and Davidson County, City of Brentwood, and Williamson County signed an initial Feasibility Study Agreement to analyze alternative flood risk management options. The feasibility study evaluated numerous flood risk management options and provided an analysis of cost and benefits associated with various projects. The USACE determined that two projects were considered economically justified. These two projects included Franklin Road channel modifications and nonstructural home raisings. With support from the Board of Mayor and Aldermen, one or both measures could have become the Feasibi...
Click here for full text