Progress Report Number 10 of Silt Load of Texas Streams: 1947-1948 Page: 7
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Lake Corpg.s Christi
The average flow from Lake Corpus Christi, located on the Nueces
River, during a 507-year period is 764,150 acre feet, while for the year
1947-1948, it was 107,320 acre feet, which is 14% of the average flow.
The average silt load for the same period is 189 acre feet, while for
1947-1948 it was only 8 acre feet, which is 4% of the average flaw.
The total silt load for a 607-year period, including 1947-1948, that
by-passed the dam is 1,079 acre feet. .The capacity of Lake Corpus Christi
is about 64,000 acre feet0
The silt load entering Lake Corpus Christi as obtained at the Three
Rivers Station for a 6.7-year period is approximately 2,949 acre feet.
The station is located about 30 miles from the upper portion of the lake.
The watershed area between them is about 1,000 square miles0 This area,
however, contributes a very small amount of silt to the lake . The amount
of silt being by-passed from the lake for the same 6.7-year period amounts
to 1,650,240 tons, or 1,079 acre feet, and represents 37f of the amount
entering the lake.
A silt survey of the lake was made in 1948 by the Sedimentation
Division, Soil Conservation Service, United States Department of Agricul-
ture0 A report of this survey is in process of preparation.
Lake Buchanan
The flow from Lake Buchanan, located on the Colorado River, for one
year (record started October 1, 1947) was 576,440 acre feet The capacity
of the lake is 992,475 acre feet0 The silt load by-passing the lake for
the same period was 46,530 tons or 30 acre feet The discharge of the
Colorado River into the lake at the San Saba Station for the year was 604,200
acre feet, and the silt load for the same period was 2,222 acre feet.
Lake Inks
The average flow from Lake Inks, which is located downstream and adjacent
to Lake Buchanan, for a 5.2-year period is 705,450 acre feet, while for the
year 194^-1948, it was 580,500 acre feet, which is 82% of the average flow.
The average silt load by-passing the lake for the same period is 71 acre feet,
while for 1947-1948 it was 38 acre feet, which is 54%. of the average load.
The capacity of Lake Inks is 16,200 acre feet . During the year 1947-1948
the silt load by-passing Lake Buchanan was 30 acre feet, while at Lake
Inks, immediately below it, the silt load was 38 acre feet0 The total amount
of silt by-passing Lake Inks for a 6.2-year period is 612,480 tons or 405
acre feet.
Lake Austin
The average di scharge of the Colorado River at the Montopolis Bridge
Station, which is located about 4 miles downstream from Lake Austin, for
a 7-year period, and since the completion of Tom Miller Dam in 1940, is
1,837,800 acre feet, while for the year 1947-1948, it was 957,750 acre feet,- 7-
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Bloodgood, Dean W. Progress Report Number 10 of Silt Load of Texas Streams: 1947-1948, report, August 1949; Austin, Texas. (https://texashistory.unt.edu/ark:/67531/metapth1623153/m1/18/?rotate=270: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.