Complex sentence: Loop 293 was originally designated as a Travis County route along the south side of the city of Austin in 1955 from the current intersection of US 290 and, then proceeded along the present ending at the current intersection of with SH 71.
Split into simpler sentences: Loop 293 was originally designated as a Travis County route along the south side of the city of Austin in 1955. That route began at the current intersection of US 290 and, then proceeded along the present ending at the current intersection of with SH 71.