Lake Sammamish Flooding

Posted by admin on April 19th, 2021

 

April 20, 2021

 

WSSA critique of KCFCD motion  

KCFCD Exec Com. Motion WSSA Critique 3.18.21

 

King County Flood Control District Motion

FCD EC MOTION 2021-03 Final – WSSA Mark Up

WSSA Color key 

Red = Cannot Support, Yellow = Neutral, Green = Support

 

WSSA Testimony

Full Meeting FCD April 7 2021

 

July 14, 2020

 

Willowmoor Floodplain Restoration Project – Dynamic Weir Analysis
This is a follow-up to a memo Reid Brockway sent to the Executive Committee dated March 8, 2019, concerning a key problem – extreme flooding of Lake Sammamish in peak inflow events – that the Willowmoor-sponsored Preliminary Dynamic Weir Analysis Technical Memorandum (DWA) did not adequately address.

Memo to FCD – DWA addendum critique

 

May 25, 2020

 

WSSA Video Review of Lake Sammamish Flooding 2020

This 20-minute video presentation provides background facts and factors surrounding Lake Sammamish’s mismanaged water levels and repeated flooding of shoreline properties.

 

2020 Flooding Survey

 

March 8

This is to highlight what I believe to be the most pressing issue concerning the Sammamish River flood control and the Willowmoor project.  It is a problem with a solution, achievable with active flow control via a dynamic weir.

Memo to FCD – DWA critique

 

February 2020

Damage Photos, Letters of Concern,
Citizen Petition, Estimated Damages

 

2020 Lake Sammamish Flooding Document Download

Willomoor Floodplain Restoration Project

Posted by admin on April 16th, 2019

 

Submission to KC Flood Control District Appeal

 

Comparison of County Prel. Weir Analysis Lake Level History to an Independent Analysis 2018

 

Submission of Water Level Issue Photos 10_2018

 

Statistical Analysis of Lake Samm. Historic Water Levels

 

King County explains the Willowmoor Project – Asks for Your Input – 2015 Creek

 

Inspection Report on Authorized Project 2008

Sammamish River, King County, Washington

July 8th 2008

PDF Document