PITTSBURGH — The city will take over inspections and maintenance of a gate and sensor system that failed to keep people off an oft-flooded road during flash flooding, five years after four people were killed in flash floods there, Mayor Bill Peduto announced Monday.

“We’ll own it from here on out,” Peduto said, referring to the $450,000 system that the Pennsylvania Department of Transportation installed along Washington Boulevard after the deadly Aug. 19, 2011, flash floods. “We’ll maintain it and we’ll make sure the system works.”

According to Peduto, the city wasn’t clear before Sunday about whose responsibility it was to inspect and maintain the system, but he said the city will make sure it’s done from here on out.

Public Safety Director Wendell Hissrich said one car was submerged after the storm hit about 6:15 p.m. Sunday, but three people in the car got to safety. A 54-year-old woman who tried to drive through the water had to be rescued by crews after her van began to float away, Hissrich said.

Police officers quickly blocked off the road until 3 to 4 feet of water receded.