The Dip was filled in to make 10A & B. They raised the track be 18ft or more. I think it was around 1998. It was a straight line (more or less) from Turn 9 to the Bridge. GTP's were hitting 195mph before braking going up the hill. There have been some wild and ugly incidents there. Bob Wollek had an "off" at 11 in a 962 that was wild, and a Formula Atlantic touched wheels and went airborne under the bridge... ugly.
If you didn't have your braking done before the bridge, you were in trouble. The track drops fast and your suspension unloads and it's
OH S#!T
The new 10A & B make good viewing at the Petit, terraced seating and a big screen to boot! And for the drivers, a big gravel trap.