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Sinkhole opens at new Penn Hills High School

Lillian DeDomenic | For The Penn Hills Progress - A 30-foot sink hole opened up at the south entrance to Penn Hills High School on Friday, April 12, 2013.
<div style='float:right;width:100%;' align='right'><em>Lillian DeDomenic | For The Penn Hills Progress</em></div>A 30-foot sink hole opened up at the south entrance to Penn Hills High School on Friday, April 12, 2013.
Lillian DeDomenic | For The Tribune-Review - A 30-foot sinkhole appeared at the south entrance to Penn Hills High School on Friday, April 12, 2013.
<div style='float:right;width:100%;' align='right'><em>Lillian DeDomenic | For The Tribune-Review</em></div>A 30-foot sinkhole appeared at the south entrance to Penn Hills High School on Friday, April 12, 2013.
Friday, April 12, 2013, 1:39 p.m.
 

Penn Hills School District officials were working to fill a sinkhole at the new high school on Collins Drive.

Officials on Friday morning discovered the sinkhole on the south side of the building, about 10 feet from a retaining wall.

The hole was about 3 feet wide and 30 feet deep.

District construction manager Dennis Russo said it is the result of old mining activity.

“The engineers and I believe that the rain we received on Thursday finally put enough pressure on the old mineshaft to cause it to collapse,” Russo said, adding that a grout-pumping truck was on site and the problem would be fixed later in the day.

The high school opened in January at a cost of about $58 million.

Patrick Varine is a staff writer for Trib Total Media. He can be reached at 412-856-7400 or pvarine@tribweb.com.

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