P12-201-4346 NA Klamath Project, OR-CA. View looking north (downstream). Beginning of placement of over 300 yd³ of concrete for foundation slab. Not (sic) 3 sump well blockouts. Also, in foreground, note trash rack sills in place. Pump line can be seen at upper left of photo beside workman; March 21, 1977; USBR photo by D. J. Kline