Mayor Bloomberg used unusually strong language to condemn the lack of progress at Ground Zero on his radio show this morning.

“I’m not going to leave this world with that hole in the ground 10 years from now,” he said. “If we wait, it will cost us a lot more money.”

The mayor said developer Larry Silverstein, who previously was in charge of the reconstruction effort at the site, and the Port Authority, to whom he ceded much of the project in 2006, have to make progress with the current plan.

“It’s time to stop this craziness of everything and we’ve just got to move forward here.”