Complex sentence: The Wilmington Turnpike Company operated the Lancaster Pike until 1877, at which point they abandoned the road and the turnpike's charter was repealed, with the road coming under control of the county levy court.
Split into simpler sentences: The Wilmington Turnpike Company operated the Lancaster Pike until 1877 when they abandoned the road. The turnpike's charter was repealed and the road was then under the control of the county levy court.