U.S. 75 South

U.S. 75 Business branches southwest from a wye interchange (Exit 99) with U.S. 75 along Floyd Boulevard.
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Entering Woodbury County, U.S. 75 transitions onto a freeway south through Sioux City.
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Loop ramps connect 46th Street with U.S. 75 ahead of the Floyd River.
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A six-ramp parclo interchange (Exit 93) joins U.S. 75 south with U.S. 20 east to Lawton and Correctionville and U.S. 20 Business (Gordon Drive) west across Sioux City.
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U.S. 20 combines with U.S. 75 south from U.S. 20 Business (Gordon Drive) to I-29/129 in Sioux City.
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Interstate 129 begins as traffic to I-29 north to Downtown Sioux City and I-29 south to Council Bluffs separates from U.S. 20 west and U.S. 75 south.
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Previous overheads at the ramp separation for Interstate 29 predated the 2001 realignment of U.S. 75 onto the freeway bypass of Sioux City.
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