"Someone just drove through into the water through the gate," 911 caller said on the recently released emergency calls.
Groton City Police Lt. Eric Jenkins raced to the scene around 2 p.m. to help Mystic native John Sidlinger, who was attempting to break a window because the doors were locked. The temperatures of the river water was 46 degrees.
"The water was cold, but I didn't feel it at first obviously your adrenaline is pumping," Jenkins said.
Dramatic video sent to Eyewitness showed Sidlinger trying to rescue her from the sinking vehicle. He was seen smashing the windshield to give the woman a way to escape.
"Have they got the person out of the car yet," the dispatcher said.
"They're trying but having trouble putting down the window," 911 caller said.
"When I finally did get the front door open she was leaning back her head," Jenkins said. "The water was up to her chin with her head tilted back breathing the air you know that was up in the roof still."
First responders worked quickly to get the woman to shore and the hospital.
Neighbors said she was lucky.
"I couldn't believe it," Sally Muzyka, of Groton, said. "Some of the other local residents say this is the fourth time it's happened."
The woman's car was fished out of the water and as of Friday afternoon, it was sitting in an impound yard for police to check out.
The woman was OK and called officers to thank them for their help.
"We were in the right place at the right time," Jenkins said. "Everybody did what they were trained to do or wanted to do and helped out."
The cause of the crash remains under investigation.
Public work crew members placed some temporary barriers here to prevent others from going through that area.
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