Cracking was found in the stones at the top of the Washington Monument Tuesday evening, the National Park Service reported.
The crack was located in one of the triangular faces at the top of the monument. It runs at an angle, and measures approximately 4 inches.
The cracking in the Monument was discovered during a secondary inspection, conducted by a helicopter crew on Tuesday. Engineers on Wednesday morning were working to determine the severity of the damage.
""An outside engineering team will take whatever amount of time they need," NPS spokesperson Bill Line said, "they are going to do a structural analysis of the crack."
Although the grounds near the Monument reopened on Tuesday, the interior is closed to visitor until further notice. Authorities put up a fence creating a 150-foot perimeter at the Monument's base. more