The US 550 Molas Pass is a Welded Wire Wall constructed in 2017. The US 550 Molas Pass wall is located near Silverton, Ouray & San Juan Counties, Colorado. The wall height is 23 feet and is 5216 square feet. The owner of the wall is Colorado Dept. of Transportation. The Colorado Dept. of Transportation was also the wall designer and Rock & Co was the contractor.