Complex sentence: An early design of the stadium included plans to situate the stadium atop a bridge across the Monongahela River; however, plans of the "Stadium over the Monongahela" were not pursued.
Split into simpler sentences: An early design of the stadium included plans to situate the stadium atop a bridge across the Monongahela River. Plans of the "Stadium over the Monongahela" were eventually not pursued.