Complex sentence: The section between Katy and Interstate 610 was purchased by TxDOT in 1998 for the expansion of Katy Freeway, and the line that went into Houston was purchased by the City of Houston's Parks and Recreation Department.
Split into simpler sentences: The section between Katy and Interstate 610 was purchased by TxDOT in 1998 for the expansion of Katy Freeway. The line that went into Houston was purchased by the City of Houston's Parks and Recreation Department.