In Washington State, to do it by the book, you will need to contact:
• county planning department (most likely)
• US Fish & Wildlife Service
•National
Marine Fisheries Service
In the case of the Wild and Scenic portions of the White Salmon or Klickitat rivers:
If ESA-listed species are present (e.g. Klickitat R.), you may need to contact one or both:
If
removal will cause mobilization of sediments:
• Washington Dept. of Ecology
• US Army Corps of Engineers