▁built ▁higher ▁than ▁required ▁by ▁the ▁Tre aty , ▁and ▁thus ▁provides ▁a ▁total ▁of ▁ 1 4 . 8 0   km ³ ▁( 1 2 ▁M af ) ▁including ▁ 6 . 1 7   km ³ ▁( 5 . 0 ▁M af ) ▁of ▁Non ▁Tre aty ▁Storage ▁space . ▁Unless ▁otherwise ▁agreed , ▁the ▁three ▁Canadian ▁Tre aty ▁projects ▁are ▁required ▁to ▁operate ▁for ▁flo od ▁protection ▁and ▁increased ▁power ▁generation ▁at - site ▁and ▁down stream ▁in ▁both ▁Canada ▁and ▁the ▁United ▁States , ▁although ▁the ▁allocation ▁of ▁water ▁storage ▁operations ▁among ▁the ▁three ▁projects ▁is ▁at ▁Canadian ▁dis cret ion . ▁The ▁down stream ▁power ▁and ▁flo od ▁control ▁benefits ▁in ▁the ▁United ▁States ▁created ▁by ▁the ▁operation ▁of ▁Canada ' s ▁Tre aty ▁res er voir s ▁are ▁shared ▁by ▁the ▁two ▁countries ▁in ▁accord ance ▁with ▁Tre aty ▁prov isions . ▁ ▁The ▁Tre aty ▁also ▁allowed ▁the ▁U . S . ▁to ▁build ▁the ▁Lib by ▁Dam ▁on ▁the ▁K oot en ai ▁River ▁in ▁Mont ana ▁which ▁provides ▁a ▁further ▁ 6 . 1 4   km ³ ▁( 4 . 9 8 ▁M af ) ▁of ▁active ▁storage ▁in ▁the ▁Ko oc an usa ▁res er voir . ▁ ▁Although ▁the ▁name ▁sounds ▁like ▁it ▁might ▁be ▁of ▁ab original ▁orig ins , ▁it ▁is ▁actually ▁a ▁concaten ation ▁of ▁the ▁first ▁three ▁letters ▁from ▁K oot en ai ▁/ ▁K oot en ay , ▁Canada ▁and ▁USA , ▁and ▁was ▁the