Correct.
In the first photo, the prominent white elevated highway is the old eastbound Central Artery. The westbound Central Artery was separate and off to the right, just barely visible in the upper right part of the photo. The large building a little to the right of the center of the photo was the Charlestown YMCA, which was straddled on both sides by the eastbound and westbound elevated structures of the Central Artery. The highway designers of the original Central Artery did at least try to avoid large buildings, but the end product was an ugly behemoth obliterating the fine fabric of old Boston.