Central Valley Project Overview

A history of the construction of the Central Valley Project.

Throughout his political life, Thomas Jefferson contended the United States was an agriculturally based society. Agriculture may be king, but compared to the queen, Mother Nature, it is a weak monarch. Nature consistently proves to mankind who really controls the realm. The Central Valley of California is a magnificent example of this. The Sacramento River watershed receives two-thirds to three-quarters of northern California’s precipitation though it only has one-third to one-quarter of the land. The San Joaquin River watershed occupies two-thirds to three-quarter of northern California’s land, but only collects one-third to one-quarter of the precipitation. The Sacramento Valley suffers from floods, and floods and droughts alternately afflict San Joaquin.