Route 255 South

U.S. 67 (Godfrey Road) turns south from a wye interchange at the beginning of the freeway along IL 255.
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IL 111/267 stems 0.26 miles east from U.S. 67 into a diamond interchange (Exit 20) with IL 255.
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IL 255 south from U.S. 67 to Exit 16 / Seminary Road was the final section of the freeway built.
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The Wood River Refinery spreads to the west of IL 255 and north of Madison Street in the village of Roxana.
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IL 255 continues south from Roxana to a folded diamond interchange (Exit 3) with New Poag Road in the city of Edwardsville.
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The IL 255 continues south from Edwardsville to become I-255 at a directional cloverleaf interchange (Exit 30) with Interstate 270.
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IL 255 south ends in one mile where Interstate 255 begins.
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A collector distributor roadway separates from the IL 255 mainline at Exit 30 for I-270 west to the Chain of Rocks Bridge and east to I-55 and I-70 near Troy.
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Kansas City is the control point for I-270 west 22.5 miles to the connection with I-70 at Bridgeton, Missouri.
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Interstate 270 heads 7.7 miles east to become I-70 east en route to Effingham and Indianapolis, Indiana.
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