Drivers were forced to navigate around a crumbled section of the southbound lanes on Monday morning.
Northbound lanes of the Saw Mill River Parkway have reopened but southbound lanes are still shut down on Monday afternoon due to a partial road collapse.
It comes after all the rainy weather this weekend caused part of the parkway to collapse.
NYDOT officials said their investigation is ongoing, but it appears the heavy rainfall exacerbated the deterioration of a 12-inch drainage pipe under the road.
Crews have been working since late Sunday night trying to get it all fixed.
At 6:30 p.m. on Sunday, a sinkhole opened and swallowed up a portion of the southbound Saw Mill River Parkway at Farragut Avenue in Hastings-on-Hudson.
The damage forced authorities to divert traffic off the busy throughfare and onto side streets.
Lisa Laciofano lives next to the parkway and took pictures of the sinkhole. She also saw cars launching across the damaged road.
"People were screeching on the parkway. Obviously, they were hitting this incline. The road began to buckle," Laciofano said.
All southbound traffic is being diverted off the roadway at Lawrence Street in Dobbs Ferry.
The Westchester County Police Department, which polices the parkway, is assisting with the road closure and related traffic detours on the parkway.
New York State owns and maintains the busy north-south parkway, which is a key artery for commuters in northern Westchester and Putnam counties who drive to work in New York City.
"On the way up to White Plains this morning, we saw a bunch of the southbound traffic on the southbound Sprain Brook Parkway, which would be one of the places people would be diverted to," Westchester County Executive Ken Jenkins said.
A DOT spokesperson said workers expect the southbound lanes to reopen later Monday evening.
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