220 Fourth Avenue South, Kent WA 98032 - (253) 856-5200


The Official Website of the City of Kent


Green River Levee Improvement Program

Project Description:

The Federal Emergency Management Agency (FEMA) de-certified all levees along the Green River in Kent. GR Levee This has resulted in many property owners being required to purchase costly flood insurance and has hindered property owners ability to redevelop their properties.  This project includes inspecting, rebuilding and improving all Green River levees as needed to protect the Kent valley from flooding.  Standards varied widely when these levees were being constructed, generally during the 1930s and 1940s.  The levees have protected the valley very well, and will continue to do so.  However, FEMA will not accredit the levees until we provide data showing they are sound.  The City has conducted geotechnical inspections of all levees to identify areas needing repair.  We have submitted this data to FEMA in the form of a Conditional Letter of Map Revision (CLOMR).  We have begun to rebuild any weak or substandard sections.


See a map of the Green River levee segments (PDF, 2MB).

Timeline of Events:

Horseshoe Bend Levee (multiple projects) - FEMA submittal in 2010 and phased construction from 2010 to 2012
Hawley Road Levee - FEMA submittal in 2010 and construction in early 2013

SR 516 to 231st Way Levee - FEMA submittal in Fall 2011 and construction in 2013
Boeing Levee - FEMA will confirm in 2015 that the proposed levee improvements are adequate to remove the Kent Valley properties from floodplains

Russell Road Lower and Lowest Levees - FEMA submittal in Fall 2011 and construction date to be determined
Briscoe/Desimone Levee - Construct Reach 4 from September to December 2015

Estimated Construction Cost:

Approximately $60 to $80 million

Project Engineers:

Mark Madfai (Horseshoe Bend and Russell Road Levees)
(253) 856-5521


Toby Hallock (Boeing Levee)
(253) 856-5536


Kelly Casteel (Hawley Road Levee and Briscoe/Desimone Levee)
(253) 856-5561


For information on contractors, click on the individual levee projects listed above.

Construction Inspector:

For information on construction inspectors, click on the individual levee projects listed above.