Complex sentence: A similar continuation is in evidence before the M67 ends at Denton Interchange, "ski ramps" lead into the air, where they would have continued over the whole roundabout towards an elvated section towards Manchester.
Split into simpler sentences: A similar continuation is in evidence before the M67 ends at Denton Interchange. "Ski ramps" lead into the air, where they would have continued over the whole roundabout towards an elevated section towards Manchester.