This story has been updated.
Two lanes that were closed have reopened after a serious crash on a stretch of I-684.
The crash, reported around 3:15 p.m. Monday, July 13, happened on the southbound side near Exit 8 Hardscrabble Road (Route 138) in Croton Falls.
It blocked the left lanes in both directions due to emergency guardrail repairs for at least two hours.
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