When traveling on the bridge police use muli-directional ka band radars at the crossovers to enforce a 55mph speed limit and when exiting the bridge on the south from 55mph to 35mph and on the north from 55mph to 45mph they also enforce at the south toll plaza a strict 20mph from 35mph northbound. watch the sky for airplanes and officers on the platforms in the lake with speed laser guns when you see them it is already to late.