I found these three videos from the Raritan River in New Jersey. Searching YouTube can bring up other examples of stream renewal, including some excellent videos from southern England.

https://www.youtube.com/watch?v=irKwfyuSNV8 Stream Restoration Project
The poster of the above link has some excellent fly-tying videos on his channel. https://www.youtube.com/user/tightlinevideo/videos

https://www.youtube.com/watch?v=HNJPtYJ4THg Robert Street Dam Removal - Part 1

https://www.youtube.com/watch?v=NfxLF73jp6Q Robert Street Dam Removal - Part 2


Regards,
Ed