The Trump administration took a big step Monday toward clearing the way for construction of two giant tunnels that would siphon water from the Sacramento River and send it south to farms and cities. The U.S. Fish and Wildlife Service and National Marine Fisheries Service determined that the tunnel project, officially known as California Water Fix, would harm several endangered fish in the Sacramento-San Joaquin River Delta, but that an extra 1,800 acres of habitat restoration, on top of the 30,000 acres the project calls for, would offset the damage.