In each category click on each album thumbnail to go to the album. Click on the page number at the bottom right of each album page to go to the specific page. Click on each thumbnail in the album pages to see the full size but still compressed photo.
After the dam is completed, the down stream and the up stream are, respectively, 62 meter above sea level and 175 meter above sea level. There is a system of five locks to move ships through the dam.