NBC Bay Area
October 29, 2021
Before breaching the last levee preventing sea water from rushing into Pacheco Marsh for the first time in generations, workers scrambled this week to make sure water wouldn’t flow the wrong way.
Last weekend’s record-setting storms brought more than 7 inches of rain to the marsh southeast of the Benicia-Martinez Bridge, forcing workers to pump out more than a million gallons of rainwater this week to get the desired effect at Friday’s ceremonial flooding.
“The storm we had Sunday was off the charts,” said Paul Detjens, the project manager and senior civil engineer from the Contra Costa County Flood Control District. “Locally, it created some problems for us out here. A week ago, this channel was bone dry. And now it’s filled with rainwater, and in an hour, it’s going to be full of tidal water.