The Spokesman-Review reported that their plans were foiled by a confidential tip that Bryan J. Storms and Kirk A. Beaulieu had spent a week working to remove the window in their cell.
The two, who both face trial for violent crimes, have been cellmates since September on the fifth floor of the jail.
The tipster also told officials that someone "on the outside" would help the inmates escape.
Corrections officers found a damaged window and the homemade rope when they searched the cell.
Both men will now face additional charges of attempted second-degree escape.
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