If possible, throw something attached to a rope to the other side and see if you can snag something. If so, and you hang on to that rope, the current will swing you to the other side rather quickly without you having to do any paddling.
The average rescue throwline is around 7/16ths (11mm) and has a mean breaking strength of approximately 4450 lbs. Having been tethered in swiftwater before, I have my doubts that 550 cord (per scenario) will stand up to the stress.
Pete