Huge gates in Delta stuck open, posing threat to migrating salmon

A pair of massive water diversion gates in the Delta near Walnut Grove has become stuck open due to a mechanical problem, posing a potential threat to juvenile salmon migrating to the ocean.

The Delta Cross Channel Gates, operated by the U.S. Bureau of Reclamation, are used to divert Sacramento River water into the interior of the Sacramento-San Joaquin Delta, and then to Reclamation export pumps near Tracy.

This time of year, the gates are normally closed on weekdays to ensure migrating salmon are not diverted from their migratory path in the Sacramento River, and opened on weekends to accommodate boat traffic.

But on Tuesday, while officials were attempting to close the gates after the Memorial Day weekend,one of the two gates could not be closed due to a mechanical problem. So Reclamation has left both gates open while it works on a fix.

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