The exposed reservoir divider comes as New York City officials issue the first drought warning in more than 20 years.

The reservoir, named for the former First Lady, was decommissioned in 1993 in part because of algae contamination concerns, as well as the upstate New York aqueduct expansion, according to the Central ...

Anyone up for a walk across the Central Park ... Onassis Reservoir. The sudden appearance isn’t the first time the dividing wall — a holdover from the reservoir’s days as New York City ...