2_-_jennifer_riddle_-_tidewater_overview_presentation_pnwer.pdf

1、WHAT WAS LIFE LIKE BEFORE THE DAMS AND THE COLUMBIA BASIN PROJECT?FLOOD OF MAY 30,1948Before 1948,the Columbia River already supported some hydropower,navigation,and limited flood control through Grand Coulee and Bonneville Dams.On May 30,1948,a railroad dike on the Spokane,Portland&Seattle Railway

2、failed,sending a 10-foot wall of water into Vanport,Oregons second-largest city,killing 102 across the basin and displacing 18,000 residents.The flood resulted from a record snowpack,sudden warm temperatures,and heavy spring rain.The disaster was basin-wide,impacting communities in WA,OR,ID,MT,and B

3、C,destroying infrastructure and farmland across the region.The devastation led to the Flood Control Act of 1950,major dam construction,and later influenced the 1964 Columbia River Treaty.Vanport was never rebuilt;its site is now Portland International Raceway and nearby parkland.COLUMBIA RIVER TREAT

4、YBilateral Agreement:Signed by the U.S.and Canada in 1961,ratified in 1964 to share and manage Columbia River benefits.Main Goals:Focused on flood control and hydropower generation.Infrastructure:Canada built Duncan,Keenleyside(Arrow),and Mica Dams;the U.S.built Libby Dam.Power Sharing:The U.S.pays

5、Canada for half of downstream power gains(the Canadian Entitlement).Flood Control:The U.S.made a one-time payment for 60 years of flood protection,ending in 2024.Environmental Gaps:The treaty excluded ecosystem and Indigenous concerns,spurring modernization talks.Modernization:Negotiations since 201

6、8 aim to update flood,power,and ecosystem provisions.Ongoing Negotiations:Since 2018,both countries have been in talks to modernize the treaty,focusing on flood risk management,power benefits,and incorporating ecosystem and Indigenous values.CRT:AGREEMENT IN PRINCIPLE(AIP)SINCE JULY 2024After years