Upper Merion 1971 Sinkhole
Remember the King Manor sinkhole of 1971 that caused the rerouting of Rt 202? Upper Merion Hole Gives Officials a Sinking Feeling – Philadelphia Inquirer, Sunday, April 11, 1971 If you have nothing better to do, you can stand around and watch a section of US 202 in Upper Merion Township fall slowly into the sinkhole. A lot of area