Dams and Control Works, Volume 2U.S. Government Printing Office, 1938 - Dams A description of representative storage and diversion dams and high-pressure reservoir outlet works constructed by the Bureau of Reclamtion. |
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Page 44
The first problem encountered was the provision of an adequate storage system
with a controlled flow in Salt River, for which purpose Roosevelt Dam was
constructed in 1906-11. The dam is located in a rugged, mountainous country,
east and ...
The first problem encountered was the provision of an adequate storage system
with a controlled flow in Salt River, for which purpose Roosevelt Dam was
constructed in 1906-11. The dam is located in a rugged, mountainous country,
east and ...
Page 57
The maximum recorded flow occurred during 1891-92, amounting to 2,300,000
acre-feet. The minimum recorded annual flow was 153,000 acre-feet in 1931.
Variations in stream flow of from 100 second-feet to 23,200 second-feet have
been ...
The maximum recorded flow occurred during 1891-92, amounting to 2,300,000
acre-feet. The minimum recorded annual flow was 153,000 acre-feet in 1931.
Variations in stream flow of from 100 second-feet to 23,200 second-feet have
been ...
Page 205
Each of the two side channel spillways is designed to receive and to discharge,
after a drop of 500 feet, a maximum flow of 200,000 second-feet without
permitting destructive erosion. The experience gained during the foregoing tests
...
Each of the two side channel spillways is designed to receive and to discharge,
after a drop of 500 feet, a maximum flow of 200,000 second-feet without
permitting destructive erosion. The experience gained during the foregoing tests
...
Page 207
A gate section is usually required at the mouth of the tunnel, and the flow
conditions produced by the presence of the gate section are seldom satisfactory.
The procedure by which models of hydraulic structures are built and tested in the
...
A gate section is usually required at the mouth of the tunnel, and the flow
conditions produced by the presence of the gate section are seldom satisfactory.
The procedure by which models of hydraulic structures are built and tested in the
...
Page 208
OUTLET TUNNELS WITH CONTROL VALVES AND METERS Probably one of
the most difficult tasks for the designer is the computation or prediction of flow
conditions downstream from gates or bends in outlet tunnels. If there are more
than ...
OUTLET TUNNELS WITH CONTROL VALVES AND METERS Probably one of
the most difficult tasks for the designer is the computation or prediction of flow
conditions downstream from gates or bends in outlet tunnels. If there are more
than ...
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abutment aggregate All-American Canal approximately arch average base bottom Boulder Dam built Bureau canal cantilever canyon capacity carried cement centers chamber channel closed completed concrete connected consisted construction contract cooling cost crest cubic yards cut-off depth designed developed diameter discharge diversion downstream drilled earth effects elevation embankment Engineering excavation extending face feet Figure floor flow forms foundation gallery gates gravel gravity grout head height holes horizontal inches installed joints length load located lower material maximum method miles mixing needle valves obtained operating outlet pipe placed plant portion pounds pressure pump radial reinforced removed reservoir river rock roller sand shaft side slope spillway square steel storage stream stresses structure supply surface temperature tests thickness tion tower tunnel Unit upper upstream varying vertical wall wide