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I-126 | I-526 | I-26
|I-326 not currently assigned|
I-326: Appeared as a dotted line in 1978 or 1979 as a new freeway between I-26 near Cayce and SC 48 southeast of Columbia.
The 1982 Official Map extends the dotted line east to US 76-378 but labels the extension as SC 77.
By 1985, the Official Map labels none of the dotted line segments.
When the freeway from I-26 to SC 48 was completed in the late 1980's, it was labeled as "TO SC 48", then later TEMP SC 478, and finally is today's I-77
AASHTO documents referred to this freeway as I-326 until I-77 was officially placed on it.