DATE: April 23, 2017
TO: Board of Mayor and Aldermen
FROM: Eric Stuckey, City Administrator
Paul Holzen, Director of Engineering
Jonathan Marston, Assistant Director of Engineering
William Banks, Engineer I
SUBJECT:
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Discussion on the Harpeth River Watershed Feasibility Study and the Franklin Road Streetscape Project. (Referred from 4/27/17 CIC)
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Purpose
The purpose of this memorandum is to provide an update to the Board of Mayor and Aldermen (BOMA) on the Harpeth River Watershed Feasibility Study and the Franklin Road Streetscape Project.
Background
The May 2010 flood event created devastation throughout the Harpeth River Watershed, including four (4) fatalities and over $480 million in direct economic impacts in the Harpeth River Watershed. For this reason, the U.S. Army Corps of Engineers (USACE) conducted a preliminary reconnaissance of the Harpeth River Watershed and found over 850 structures in the regulated floodplain within 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, the City of Franklin, Metropolitan Nashville and Davidson County, the City of Brentwood and Williamson County signed a 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 has determined that channel modifications of the Harpeth River at Franklin Road, within the City of Franklin, are economically justified.
The preliminary cost estimate provided by the USACE is approximately $1,000,000. The City would be responsible for 35% of the actual cost ($350,000). A portion of the Franklin Road Streetscape Project, from Harpeth River Bridge to Harpeth Industrial Court, ...
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