Complex sentence: The new rail viaduct opened for services between and on 1 September 2014 but work on the accompanying roadway was delayed by problems relocating electricity cables and a water main that were using the old bridge.
Split into simpler sentences: The new rail viaduct opened for services between and on 1 September 2014. But work on the accompanying roadway has been delayed by problems relocating electricity cables and a water main that were using the old bridge.