Image by YouTube user LargeItalianSausage The counter evidence.
There's an urban legend debate stirring about whether or not any F/A-18s from the Blue Angels visit to Charleston actually flew under the Ravenel Bridge.
Some videos dug up by Post and Courier reporter Andy Paras seem to show a plane going under (along with many instances that the plane did), while others show a plane clearly pulling up before it reached the bridge (that's the video at the top.)
The verdict's unknown, but here's a couple more for you to watch.
Update April 20: The Post and Courier did some checking around; read what they've got here.