All she has to do is ask.

Two members of the City Council — whose districts flank the Queensboro Bridge — have promised to allocate capital money that they control to install a security fence on the south outer roadway, a missing piece of infrastructure that Department of Transportation Commissioner Polly Trottenberg says is preventing her agency from doubling the amount of pedestrian and cycling space on the fabled span.

“I’m all in,” said Queens Council Member Jimmy Van Bramer.

“We could do this now,” added his Manhattan colleague Ben Kallos.