Complex sentence: The line had stations at Watford Junction and Watford High Street and a depot on Wiggenhall Road in Watford Further Parliamentary authorisation was obtained a year later to construct an extension from Rickmansworth to connect with the Great Western Railway's Uxbridge branch, but was never realised.
Split into simpler sentences: The line had other stations at Watford Junction and Watford High Street and its depot was on Wiggenhall Road in Watford. A further Parliamentary authorisation was obtained a year later to construct an extension from Rickmansworth to connect with the Great Western Railway's Uxbridge branch, but this was never realised.