At the stroke of midnight; police on foot, on horseback and in cars moved through the huge crowds on Bourbon Street.
They let revelers know that Carnival had come to a close and Ash Wednesday had arrived.
"Mardi Gras 2019 is now over, please clear the street," police announced over a loudspeaker as they parted the sea of revelers.
New Orleans Mayor LaToya Cantrell walked down Bourbon Street with the cops.
"We did have a successful Mardi Gras season," she insisted. "It is because of the hard working men of the New Orleans Police Department, Fire Department, EMS, Homeland Security, FBI, State Police..."
Cantrell also thanked the revelers.
"I am very just happy about the focus of all our people, and including -of course- the citizens themselves. We had a great 2019."
NOPD Chief Shaun Ferguson said despite the massive crowds, they were relatively well behaved.
"I am proud to stand before you and say they we had a safe and successful Mardi Gras 2019," he told reporters just before midnight. "This year we had less arrests compared to the number we had last year."
Ferguson reported 306 arrestes this year, compared to 411 last year. There was an increase in gun arrests.
The chief said they pulled 77 guns off the streets during arrests at Mardi Gras festivities.