Multnomah Falls, Oregon 8. Multnomah Falls Bridge Multnomah Falls is the 5th largest waterfall in the United States. The upper fall is 542 feet and the lower fall is 69 feet, for a total of 621 feet. Access was limited to some sections of the site, due to problems with washed out areas from the floods and rock slides. There is a little restaurant here if you need a snack. ⇦ Back to Page 7   On to Page 1 ⇨Return to Multnomah Falls |