Geological Reconnaissance of the Sulphur River and Cypress Creek Basins, Texas Page: 37 of 148
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northward for about 3 miles where it would join the primary route heading
northward into Ripley Creek.
91. Two pump stations would be required along the primary route.
The first, designated Titus Pump Station, would have a lift capacity of
82 ft and would probably be located about 4 miles southeast of Winfield
(section H-H', plate 9). The second, designated Interstate 30 Pump Sta-
tion, would have a lift capacity of 51 ft and would be located just east
of Winfield. From'the latter pump station, water would flow by gravity
into Naples Reservoir.
92. Along the alternate route (section I-I', plate 10), the same
total lift (133 ft) would be required; however, it could possibly be ac-
complished by one pump station rather than two. Either the one or the two
pump stations would be located just south of Winfield (plate 10).
Geologic setting
93. Essentially all excavation along the alternate channel route
would take place in either Wilcox Group deposits or Recent alluvium while
excavation along the primary channel route would be principally in the
Wilcox Group. The Wilcox Group deposits consist of hard, thinly laminated
clays and silts with scattered lenticular lignite seams varying from a
few inches to about 5 ft in thickness and occasional several-inch-thick
siltstone or claystone layers and/or concretions. The formation dips to
the southeast at about 50 ft per mile.
94. The alluvial deposits in the various creeks are similar, con-
sisting of irregular layers of medium to stiff clays, clayey silts, and
silty sands. The silty sands are generally concentrated near the base of
the sequence; materials as coarse as fine sands or sands and gravels were
not encountered in the two borings (1-TCN and 3-TCN) that penetrated al-
luvial deposits (plate 11). Total thicknesses of alluvium are not expected
to exceed 25 ft at any point along the proposed channel.
95. Midway Group deposits consisting of highly uniform hard clays
with paper-thin silt partings occur beneath the alluvium of Ripley Creek
to the north of a point about 3-miles north of Winfield (plate 10). It
is unlikely, however, that excavations would extend deep enough to en-
counter these deposits.25
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Saucier, Roger T. Geological Reconnaissance of the Sulphur River and Cypress Creek Basins, Texas, report, November 1967; Vicksburg, Mississippi. (https://digital.library.unt.edu/ark:/67531/metadc303912/m1/37/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.