Monday, November 30, 2015

When the Levee Breaks

Santa Maria Riverbed - Dry as a Bone



Mr El Niño
Hopefully you will arrive as predicted and fill this riverbed with water. Precious water. Much needed water. As much of a hoped for event, the perils remain to be seen. Can this levee and sandstone cliffs hold the expected deluge? Or will the levee break?

In January 1969 this humble riverbed in Santa Maria, CA was brimming over with water. Breached by a magnificent 100-year storm who's downfall lasted 10 days straight. One for the records books. Soon water was overflowing and threatening to expand its containment area. Mud and debris flowed bank to bank. Farm lands so desperately in need of rain were flooded and crops destroyed. Nearby houses normally high and dry were flooded. Families and businesses were displaced and daily life disrupted. The seasonal cleanup was huge and county resources were stretched to capacity.

Recent draft maps from the Federal Emergency Management Agency showed that much of Santa Maria, including 20,000 parcels and 17,000 structures, would be designated as in the flood plain, triggering a flood-insurance requirement for many property owners. Fortunately mistakes were learned and infrastructure improved in a critical 2009 federal/Santa Barbara County project that rehabilitated approximately 6.3 miles of the 50-year-old structure. Five years and $47 million dollars later the old bridge that crosses the river has been retrofitted and the levee re-engineered. Now it stands ready to take on this Winter's expected heavy rain storm. Assuredly, one day, Mother Nature will test this levees structural ability to hold back water. So come on...My sandbags are ready. I dare you Mr El Niño! Give me all you've got! Let's end this drought!













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