DAMS.
101
Trautwine
determined that one cubic yard of hard rock made on an average 1.7
cubic yards of embankment, or that one cubic yard of rock embankment
required 0.5882 of a cubic yard in place. Also that a solid cubic yard
when broken into fragments made 1.9 cubic yards of loose heap, 1-3/4
yards carelessly piled, 1.6 cubic yards carefully piled, 1.5 cubic
yards very carelessly scabbled, or 1-1/4 cubic yards somewhat carefully
scabbled.
Dams in California.—Among
the most important dams built in California are : the Bowman dam,
height one hundred feet, length four hundred and twenty-five
