JoJo John crashed the speedboat near the Tappan Zee Bridge, killing a bride-to-be and the best man.
They were thrown from the boat and drowned on July 26 after the boat hit the stationary barge involved in the construction of a new bridge.
The 35-year-old John and his surviving passengers say the barge was not lit and was impossible to see.
John is charged in an 18-count indictment with multiple counts of manslaughter.
The district attorney says John had nearly double the legal amount of alcohol and traces of cocaine in his system.
Bail set at $25,000, cash only.