Complex sentence: The line was built in sections from 1834 onwards; the entire route between Carlisle London Road railway station and Redheugh in Gateshead was formally opened to passengers on 18 June 1838.
Split into simpler sentences: The line was built in sections from 1834 onwards. The entire route between Carlisle London Road railway station and Redheugh in Gateshead was formally opened to passen gers on 18 June 1838.