Grand Coulee Dam from North Cliff, showing water from Columbia River Reservoir passing over the spillway drum gates for the first time I in the construction of the dam. There are eleven drum gates, each 125 feet wide, but only 10 are shown operating. The eleventh gate (at the left side in the picture) is temporarily closed to prevent spray from interfering with work on the East Powerhouse, under construction during the year 1942. The two gates at the right of the picture are not open as wide as the others, as they are being periodically changed to regulate the daily fluctuations in river flow. The "Engineer's Town" of Coulee Dam is shown in the right foreground, and part of the town of Grand Coulee may be seen at the upper right.
A few downstream of the Grand Coulee Dam with floodgates open.