Groce looked over the rail and saw the miracle.
Betsy was indeed swimming in that direction.
Still helped by adrenaline, Groce ran from the bridge to Kanawha Boulevard and headed over the riverbank.
Johnson jumped back in the police van, wheeled it around and headed there as well. He found the reunited pair on the rocky bank.
"She was definitely in shock," Groce said of Betsy. "When I got to her, she went limp and I thought I'd lost her momentarily."
Johnson said the dog, which he described as "beautiful," had blood in her mouth. He asked Groce what she wanted to do. She asked him to call her husband, but the officer couldn't reach him. She then asked for a ride to the vet.
Johnson put both Groce and Betsy in the back of the van, where prisoners normally would ride. He drove quickly to Kanawha Boulevard Animal Hospital, where the woman and dog were whisked into an exam room.
The officer had to get back to work but left his card.
Groce said the doctor told her the dog had taken in a lungful of water but otherwise was OK.
"Miraculously she was just fine," she said. "The vet said he couldn't believe that she hit the water and wasn't so stunned she couldn't swim."
Betsy had a rattle in her chest the next day but by the second day was "completely clear," Groce said.
Betsy now has a new harness but remains a bit nervous. Her owner is a little embarrassed about the ordeal but grateful.
"The officer was great," she said.
"He took me right down to the vet. I really appreciate him."
She said while the experience was terrifying, she's glad the dog took the leap instead of running into the path of a car.
Contact writer Ashley B. Craig at ashley.cr...@dailymail.com or 304-348-4850.