Hi spoof - Somebody's yanking your chain. There's no steelhead in the Lehigh, despite what you might have heard. I heard those rumors too, quite a few years ago.
Closest steelhead waters to us are in NY (ie. Salmon River), and closest in PA is all the way out in the Erie tribs.
There were some monster size trout just stocked in the Lehigh close to your area. It was for the LRSA's Lunkerfest. Only a small fraction of tagged fish were caught, so have at it.
Rainbows love eggs - hint hint.