(11:55 PM)
underground old sacramento
apparently they raised the city 12 feet around 1862 because of repeated flooding. store owners had to do part of it themselves!:
"They were to build a cofferdam wall in front of their store 10 to 12 feet high, and the proprietor on the other side of the street was to do the same. And between the two cofferdam walls, the city filled in with debris, rock, dirt, whatever they could get."
and then they either raised their building, worked out of their second floor, or just used a ladder to get down (laughing). from this article at sacticket.com: Going underground. via heckasac.