A long-sought and disputed project in drought-prone California aimed at capturing more water during heavy rain storms reached a key milestone on Friday when Gov. Gavin Newsom's administration finished an environmental review for an underground tunnel.
The tunnel would be about 45 miles (72 kilometers) long and 36 feet (10.9 meters) wide, or large enough to carry more than 161 million gallons of water per hour. The tunnel would be another way to get water from Northern California, where most of the state's water is, to Southern California, where most of the people live.
