Shasta Dam only by Hoover Dam on the Colorado – as well as the highest man-made structure in California. It was also the second most massive concrete dam measured by volume, exceeded only by Grand Coulee Dam on the Columbia River in Washington. An anonymous workman reportedly said, "Old Shasta's about the secondest dam there is." When the dam was completed, chief engineer Frank Crowe is known to have declared, "Look at that Shasta Dam. That dam will stand there forever holding back the river. And that powerhouse will keep right on turning out juice until somebody discovers how to make power
Green River Crib Dam is about long, with a maximum height of , and spans the river in a semicircle open to the downstream side. The material of the dam mostly logs and rubble, with plank facing. The abutments of the dam are now a combination of stone and concrete, the wing wall on the east side extending downstream toward the bridge, where it formed part of the foundation of a now-destroyed mill. The earliest recorded documentation of a dam on this site dates to 1811, when Jonah Cutting is known to have a paper and linseed oil mill operating at the site. Some