a series of dams in these watersheds would shunt water through interbasin transfers into the klamath river system. the centerpiece of the project would be a reservoir on the klamath river – the largest man-made lake in california – from where the water would flow through the trinity tunnel into the sacramento river, and thence to the canals and pump systems of the swp. this would have provided between of water each year for the swp. the diversion of the north coast rivers, however were dropped from the initial swp program.