Complex sentence: An at-grade intersection with Superior Avenue was planned, as well as an overpass of University Dr. But those plans were on hold for quite some time and are now scrapped, because the road is no longer needed.
Split into simpler sentences: An at-grade intersection with Superior Avenue was planned, as well as an overpass of University Drive. However, those plans were on hold for quite some time and were eventually scrapped, as it was determined that the road was no longer needed.