Construction of the dam began in 1947
and was completed in 1954 at a cost of
$300 million dollars. Garrison Dam is
one of the largest earthen dam structures
in the world with a volume of 66.5 million
cubic yards of rolled earth fill. The . . . — — Map (db m178019) HM
Construction of the Intake
Structure took 5 years and
cost $21 million dollars
back in 1954. Enough
concrete to pave a road
115 miles long was used
in construction of the
structure. The Intake Structure is 249 feet
tall, 540 feet long and . . . — — Map (db m177992) HM
Hydroelectric power is produced
through generating units in the
Powerhouse. The generators
produce electricity at 13,800 volts
which is stepped up to 115,000 and
230,000 volts for transmission. The
rotors on units 1, 2, and 3 are 35 feet
in . . . — — Map (db m178018) HM
