Mr. Holloway and Deputy Mayor for Health and Human Services Linda Gibbs introduced the new flood-zone map Friday as part of the city's Hurricane Sandy After Action report, an overview of the emergency response to one of the worst storms in New York City's history.

WSJ: After Sandy, More in New York City Could Face Storm Evacuations

"Hurricane Sandy tested the city's ability to respond to a large coastal storm from providing shelter to residents of coastal areas to removing thousands of tons of damaged trees to providing food and supplies to affected residents, " Deputy Mayors Linda Gibbs and Caswell Holloway wrote in the post-Sandy self-analysis issued Friday.

WSJ: New report: NYC should buy more police boats