think of the bridge as a starting line. choose the favored side. pick a pylon that you want to pass behind, line up so you are sailing to the pylon as fast as possible, maybe on a close reach. be aware that when you get behind the pylon you will be swept toward it by the eddy behind it. bear off and foot behind the pylon and use the extra speed to shoot up into the current, as close to the pylon as you dare. trim hard and point through. speed and favored side are key, if you dont make it just ease the tiller away and drift back, wait for a better puff and try again.