Daryle Ward becomes the first player in the brief history of Pittsburgh’s PNC Park to hit the Allegheny River on the fly. His 5th inning towering grand slam, which is estimated to travel 479 feet, help the Astros to rout the Pirates, 10 – 2.

On July 6, 2002, Daryle Ward becomes the first player in the brief history of Pittsburgh’s PNC Park to hit the Allegheny River on the fly. His 5th inning towering grand slam, which is estimated to travel 479 feet, help the Astros to rout the Pirates, 10 – 2.

Source:

Baseball Reference July 6