California's long-gestating plan to construct a massive tunnel that will pump water from the state's Sacramento–San Joaquin River Delta to points south will cost $20 billion, according to a new ...

California’s giant redwood ... car right through the trunk of a living tree. How can a tree possibly grow so wide and remain healthy after having a tunnel carved through it?

The project is the Newsom administration’s proposed replacement for the twin-tunnel California WaterFix project. Today’s lawsuit, filed in state court in Sacramento by the Sierra Club, Center for ...