Front:
121:-COOLIDGE DAM.
HIGHWAY U. S. 180-70.
OHERZ
42780
Back:
OTTO
10 STIVAL
102
42780
COOLIDGE DAM, ARIZ., is on U. S. 180 between
Globe and Safford. Maximum height above bed rock 260
ft. Crest length 560 ft. over the three domes and two
buttresses, and each spillway is 150 ft. wide. The San
Carlos Lake formed by the dam has a storage capacity of
1,200,000 acre-feet, sufficient water to cover the 100,000
acres in San Carlos Irrigation Project in Pinal County to a
depth of 12 ft., four times the water required for one year's
need. Dam commenced January, 1927, completed October
25, 1928. The reservoir when full will extend up the Gila
and San Carlos Rivers for about 20 miles.
es
BY
SPESTI
PUB. BY HERZ
193
P.O.Box 55
Staffordville
& Conne
CALIF.