A northbound lane of Interstate 684 in Lewisboro is closed indefinitely after a roadway depression was discovered during drainage pipe repair on Thursday, July 9.

The New York State Department of Transportation said traffic between Exit 6 (Route 35) in Bedford and Exit 7 (Route 116) in North Salem is reduced to one northbound lane and two southbound lanes until further notice. No reopening timeline has been set.

A NYSDOT contractor repairing a deteriorated drainage pipe discovered the depression forming in the highway surface Thursday afternoon, according to a Daily Voice report published Friday, July 10. Crews immediately shut down the affected lanes and notified emergency services.

I-684 connects I-287 and the Hutchinson River Parkway to I-84, making it the primary northbound corridor for Bronxville, Scarsdale, and Eastchester residents traveling to northern Westchester and Putnam County. The affected segment already narrows to two lanes in each direction between Exits 5 and 6, and a 2021 NYSDOT corridor study found that over 90 percent of I-684 traffic at the time consisted of single-occupancy vehicles. That study also documented significant weekday congestion and spillover onto local roads when the highway backs up.

Losing one of two northbound lanes in this stretch compounds an already tight bottleneck.NYSDOT advised motorists to expect delays and use alternate routes. The agency did not name specific detours. Route 22 parallels I-684 through this corridor, and Metro-North's Harlem Line serves Purdys station adjacent to the highway near Exit 7, though neither was officially recommended.

NYSDOT crews were on-site assessing the situation as of Friday, July 10. The Bronxville Beacon reached out to NYSDOT for an update on the closure status and repair timeline; the agency had not responded as of Saturday, July 11.

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