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Corte Madera installs three inline Tideflex check valves to curb tidal flooding
Summary
Town staff installed three inline Tideflex valves at Lucky Drive, Golden Hind Passage and Channel Drive to replace failing flapper and duckbill gates; officials say valves reduce tidal inflow but won’t prevent flooding when high tides coincide with heavy rain, and ongoing corrosion and disposal costs pose fiscal challenges.
Public works staff reported the town installed three new Tideflex inline check valves at priority locations to replace failed flapper and duckbill gates, a move officials called necessary to keep tidal water out of the storm system during king tides.
Town public-works staff (unnamed) told the Flood Board that the first valve replaced a corroded flapper gate near Lucky Drive, across from High Canal and adjacent to the boathouse; in another case, a duckbill at 131 Golden Hind Passage in Mariner Cove had fallen off and staff installed the Tideflex upstream of the…
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