A snow-clogged side street in the Carroll Gardens neighborhood of...

A snow-clogged side street in the Carroll Gardens neighborhood of Brooklyn. (Dec. 29, 2010) Credit: Getty Images

New York City Mayor Michael Bloomberg says he’s “extremely dissatisfied” with how the city’s emergency response system performed during the post-Christmas blizzard.

Ambulances got stuck in the snow trying to answer 911 calls and more than 49,000 calls swamped 911 operators in one day. That’s the 6th busiest day in the system’s history.

The mayor says the city needs to focus on clearing unplowed streets after the storm and “we’ll do the post-mortem afterwards.”

New York’s sanitation commissioner says most of the streets in the still-snowbound city will be plowed by 7 p.m., with every last one done by tomorrow morning.

Residential streets throughout the city remained untouched by snow plows Wednesday morning.

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Visiting Christmasland in Deer Park ... LI Works: Model trains ... Get the latest news and more great videos at NewsdayTV

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Visiting Christmasland in Deer Park ... LI Works: Model trains ... Get the latest news and more great videos at NewsdayTV

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