Complex sentence: The triple crossing has been a Richmond attraction for railfans for over 100 years, although the number of photographic angles decreased in the 1990s due to construction of a new flood wall along the James River.
Split into simpler sentences: The triple crossing has been a Richmond attraction for railfans for over 100 years. The number of photographic angles decreased in the 1990s due to construction of a new flood wall along the James River.