This is the instructional video:
Crow Pass Trail River Crossing I think the link should work. I couldn't find the original source of the video besides the facebook link above.
It really is the most dangerous part of the trip. After early morning rain we didn't know what to expect of the river depth as it can be knee to waist deep and the water runs fairly swiftly. In our case, the depth was not over knee deep.
But it sure is painfully cold! Everyone brings an extra pair of shoes for the crossing.