Columbia river and tributaries, northwestern United States, Volume 6

acre-feet acres annual run-off appendix Arlington bank basalt Bonneville Dam bridges canyon capacity Cascade Range channel improvement Columbia River construction Corps of Engineers County Cowlitz River Crooked River Cubic yard Dalles Dam Deschutes River diking district discharge downstream drainage area drainage district east erosion estimated existing facilities farms Federal feet fish fishery flows following tabulation Fork Heppner Highway Hood River hydrograph installed inundated irrigation Island John Day Dam John Day River June kilowatts Klickitat River lands levee Lewis River located lock Lump sum maximum maximum-possible McNary Dam mean sea level mouth Multnomah navigation non-Federal normal pool elevation Number Oreg Oregon Pacific Pendleton percent Portland possible future problems proposed railroad reservoir River Basin river mile Rock Sandy River second-feet slough square miles stream sub-basin tion Total Umatilla River United upstream valley Vancouver Walla Walla River Wash Washington Willow Creek Yakima River