Notes:

I will be speaking today from two perspectives:
My professional background is in hydrology, geomorphology, and fisheries habitat. As part of my job, I design and construct LWD jams in streams and rivers
Running rivers is one of my free-time passions. I hunt and fish on class II and III rivers and spend another 20 - 30 days a year running class IV and V whitewater throughout the Pacific Northwest and California.