Flood changed it and then they filled the old channel connection to make it permanent under a state law in the late 1800s/early 1900s is my limited understanding. I'm working on a habitat restoration project in the LDW and found the history of land use in the basin particularly interesting. I'll spend a minute tomorrow to find the references/citations I used in explaining this in the report, but I'm pretty sure the best stuff is all King County, they have loads of freely available information and research about the Duwamish-Green watershed going back decades.
suddenlyturgid t1_jaq50y2 wrote
Reply to comment by Soosietyrell in Western Washington territory, 1857 by BoazCorey
Flood changed it and then they filled the old channel connection to make it permanent under a state law in the late 1800s/early 1900s is my limited understanding. I'm working on a habitat restoration project in the LDW and found the history of land use in the basin particularly interesting. I'll spend a minute tomorrow to find the references/citations I used in explaining this in the report, but I'm pretty sure the best stuff is all King County, they have loads of freely available information and research about the Duwamish-Green watershed going back decades.