Contact Us

Whatever it is, we care.

Feel free to ask us anything or pick our brains about your specific river or stream challenge via phone or email. We look forward to hearing from you.

Contact Information

(206) 521-3000

Jeff Johnson

Principal Hydraulic Engineer and Geomorphologist

Larry Karpack

Principal Hydrologist and Hydraulic Engineer


Watershed Science & Engineering
Smith Tower, 506 2nd Ave, Suite 2700
Seattle, WA 98104