**Acknowledgements**

We appreciate the generosity of Mike Ellis in providing us access to his grassed waterway datasets and Mike, Bob, and Jim Ellis for allowing us to conduct this research on their farm. We are also grateful for the assistance of Randall Rock, Jack Kuhn, Danny Hughes from the NRCS. We would like to thank Steve Workman from the UK college of Agriculture for sup‐ port from the SB-271 Water Quality Funding. We also wish to express our appreciation to Photo Science president Mike Ritchie for providing us the complementary LiDAR data used in this chapter.
