21732-Upper Side of Spilway at Gatun ake Panama Cana
21732-Upper Side of Spillway at Gatun Lake. Panama Canal.
Near the central point in the Gatun Dam
is constructed a spillway or channel. This
channel will be used to carry off the surplus
water of the lake. It is apparent that the
surplus water of the great arti icial Gatun
Lake could not be allowed to flow over the
dam without providing a bed for its gradual
passage to the ocean. This channel is not
constructed as a trough above the level of
the land but is cut through a hill like tunnel
open at the top and is lined with cement.
The water is received at a height of ten feet
above sea-level and falls to sea-level after
traversing 1,2oo feet, or the length of the
channel. The width of the channel is 285
In this view is seen the circular barrier
between the lake and the channel. The
spectator is on the lake side. Steel frame-
work has been placed, and the concrete is
gradually being filled in. The crest of this
barrier or dam is, of course, lower than the
remaining portions of the Gatun Dam, being
16 feet below the normal lake level.
Copyright 1913, by The Keystone V iec C'ompany.
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