Coolidge Dam, Highway U. S. 180-70


Stock #: 97421
Type: Postcard
Era: Linen
City: Safford
State: Arizona (AZ)
County: Graham
Publisher: Herz Post Cards
Postmark: 1933 Jul-06
PM City: Globe
PM State: AZ
Stamp: 1C
Size: 3.5" x 5.5" (9 x 14 cm)
Additional Details:
Coolidge Dam, Ariz., is an 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 Gilz and San Carlos Rivers for about 20 miles.

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