The implosion of the cranes, which are 270 feet and 300 feet tall, respectively, involved a series of carefully placed explosive charges, NOLA.com reported.
Bringing down the cranes proved trickier than expected, according to New Orleans Fire Superintendent Tim McConnell.
"They found out some things about it that are changing the way they're going to take it down," McConnell told NOLA.com. "The crane's more damaged than they thought, so they need to do things that are a little bit safer
Around 1:15 p.m. Saturday, several hotels on Canal Street had been evacuated, WWL-TV reported.
Earlier Saturday, the Krewe of Boo parade, scheduled for Saturday night in the French Quarter, was canceled because of the demolition, WSDU reported. However, when the demolition was delayed Saturday afternoon, city officials said the parade could go on as scheduled.
Financial issues may have played a part in the first delay of the implosion, WWL reported.
The developer of the hotel project did not pay the $5 million demolition price until Saturday morning, the television station reported. The demolition team, a joint venture between D.H. Griffin Wrecking Co. of Greensboro, North Carolina, and Lemoine Disaster Recovery of Lafayette, required full payment into a trust before the demolition could proceed, according to public records requested by WWL.
Workers began the process of preparing the two unstable cranes for implosion at the collapse site of the Hard Rock Hotel in NE Orleans.