A water main rupture on Central Avenue in Scarsdale is causing flooding and a boil water advisory.

The break occurred late Sunday morning and forced traffic into a single lane for motorists traveling both north and south as crews work to contain the damage.

Officials on the scene said the Greenburgh Department of Public Works is trying to locate the correct valve to shut off water pressure before repairs can begin on the large, damaged pipe. As of Sunday night, there is currently no timetable for when the repair will be completed.

The Westchester County Department of Health issued a boil water advisory effective immediately through Tuesday, or until further notice. The advisory covers areas between the Sprain Brook Parkway and Central Park Avenue, including the Central Park Avenue corridor north of Jackson and Fort Hill avenues and south of Underhill Road. It also includes neighborhoods between Central Park Avenue and the Bronx River Parkway, as well as all streets on both sides of Central Park Avenue between Old Army Road and North Healy Avenue.

Residents in affected areas are instructed to bring all tap water to a rolling boil for at least one minute before drinking, cooking, washing dishes by hand, or brushing teeth. Officials say updates will be provided as work continues.