Plan to enlarge Los Vaqueros Reservoir gains momentum

For nearly two decades, Los Vaqueros Reservoir — a sprawling lake in eastern Contra Costa County nearly 3 miles long and 170 feet deep — has been a popular spot for boating, fishing, hiking and a key source of water for local residents.

But now, after years of drought and new money available from a 2014 state bond measure to fund water projects, a long-standing idea to dramatically enlarge the reservoir to help provide drought insurance to cities all the way to San Jose is gaining momentum.