Flash Flood in Allegheny County, Pennsylvania

Heavy thunderstorm rains continued to create flash flooding conditions throughout the county. Some roads, including Allegheny River Boulevard in downtown Pittsburgh, experienced extensive flooding.The most significant flash flood event occurred at an automobile dealership in southeast Allegheny County between 6 and 7 am EST. Long Run and Jack's Run went out of their banks. Homes were flooded along Route 48. Flooding along Long Run swept 3 vehicles into a large storm water catch basin. The first auto was a compact and was later discovered over a mile downstream from the dealership. The other two vehicles were larger sport-utility vehicles and they became lodged in the culvert. Of the 175 autos that were damaged or destroyed, 105 were new and 75 were used. Extensive damage to the asphalt pavement also occurred. Losses at the dealership were estimated around $3 Million. Mudslides were reported along Route 51. Streets Run Creek at the Glenwood Bridge in the Hays section of Pittsburgh went out of its banks.