To: MAYOR AND CITY COUNCIL
From: ANDREW WINJE, PUBLIC WORKS DIRECTOR
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AUTHORIZE THE PURCHASE OF PORTABLE FLOOD CONTROL BARRIERS FROM GARRISON SYSTEMS, LLC TO HELP MITIGATE THE IMPACTS OF EXTREME HIGH TIDES IN AN AMOUNT NOT TO EXCEED $100,000 SUBJECT TO SUCCESSFUL DEMONSTRATION AND REVIEW OF THE PRODUCT
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EXECUTIVE SUMMARY
Recent record high tides attributed to El Niño and a recent Kelvin Wave have impacted waterfront facilities throughout Southern California, including the Redondo Beach Waterfront and King Harbor. Of particular concern is the impact to the storefronts along the International Boardwalk, which have experienced water up to their doorways and, in some cases, into the establishments despite being protected by sandbags.
Staff is researching a short-term mitigation solution that will perform better than the current sand bag method of protection and is ready to recommend a portable, modular flood barricade system for purchase to protect the area against compound high tide events predicted to come later in the year. The Mayim Barrier flood protection system is available using a Sourcewell cooperative purchasing agreement, and staff is requesting authorization to purchase a system promptly to provide for the earliest possible delivery date.
In anticipation of this historic tide phenomenon, staff researched enhanced mitigation measures and identified the Mayim system as a possible solution. Before committing to the purchase of the new system staff is performing live testing with demo Mayim materials and conferring with references to ensure the product will provide sufficient protection for property and life safety. The intent is to provide approximately 1,300 linear feet of a 30-inch high barrier around Basin 3, including International Boardwalk.
Using the published, and competitively bid, Sourcewell unit pricing, staff has a good faith estimate of $92,543.35 from Garrison Systems, LLC to fully encircle Basin 3. Staf...
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