▁years , ▁the ▁" D etailed ▁Oper ating ▁Pl ans " ▁have ▁included ▁a ▁growing ▁number ▁of ▁fish - friend ly ▁operations ▁designed ▁to ▁address ▁environmental ▁concerns ▁on ▁both ▁sides ▁of ▁the ▁border . ▁ ▁BC ▁Premier ▁W . A . C . ▁Ben nett ▁was ▁a ▁major ▁player ▁in ▁negoti ating ▁the ▁treat y ▁and , ▁according ▁to ▁U . S . ▁Senator ▁Clar ence ▁D ill , ▁was ▁a ▁t ough ▁b arg ainer . ▁The ▁U . S . ▁paid ▁C $ 2 7 5 ▁million , ▁which ▁acc ru ed ▁to ▁C $ 4 5 8 ▁million ▁after ▁interest . ▁But ▁Ben nett ' s ▁successor ▁Dave ▁Bar rett ▁was ▁ske pt ical ▁about ▁the ▁deal ; ▁he ▁observed ▁that ▁the ▁three ▁d ams ▁and ▁associated ▁power ▁lines ▁ultimately ▁cost ▁three ▁times ▁that ▁figure , ▁in ▁addition ▁to ▁other ▁costs . ▁Dr . ▁Hugh ▁L . ▁Ke en le ys ide ▁( for ▁whom ▁Ke en le ys ide ▁dam ▁is ▁named ) ▁dismiss ed ▁these ▁claims ▁and ▁other ▁confusion ▁about ▁the ▁Tre aty ▁benefits ▁and ▁costs ▁in ▁his ▁ 1 9 7 4 ▁paper ▁" T en ▁Year ▁Later , ▁The ▁Results ▁of ▁the ▁Columbia ▁River ▁Tre aty ." ▁ ▁He ▁explained ▁that ▁the ▁original ▁estimate ▁of ▁the ▁cost ▁of ▁the ▁Canadian ▁d ams ▁was ▁about ▁C $ 4 1 1 ▁million ▁in ▁ 1 9 6 3 ▁dollars . ▁Act ual ▁cost ▁in ▁ 1 9 7 3 ▁dollars ▁was ▁about ▁C $ 5 4 8 ▁million