The lockdown has been lifted at the Clinton Correctional facility and visitors to the prison in Dannemora are expected to be able to return Friday.
The prison has been locked down since convicted killers Richard Matt and David Sweat were discovered missing from their cells June 6 after they cut through their cell wall and a steam pipe.
The search for them has expanded beyond the 16-square-mile grid search of forests, swamps other buildings near the prison. Abandoned buildings, seasonal camps and railroad beds are being checked.
State police say Thursday that as they expand their search area, officers have cleared more than 160 unoccupied buildings and seasonal homes. They have searched 585 miles of railroad beds and trails.
More than 600 law enforcement officers are still involved in the search.
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