Complex sentence: The dam's height is 166 meters, the arch length 305 meters, water accumulation volume 465 million cubic meters, the reservoir has a total shoreline (perimeter) length of 28km.
Split into simpler sentences: The dam's height is 166 meters, the arch length 305 meters and it can store 465 million cubic meters water. The reservoir has a total shoreline (perimeter) length of 28km.