(Riverton, Wyo.) – It really happened, and WYDOT apologizes for the error. If you’ve seen this on Facebook or other social media sites, the image is authentic. The error was made on the sign located at milepost 16.59 on WY259 (Outer Drive) in Casper. It happened on January 18, 2014 and lasted for 17 minutes beginning at 4:49 p.m. and continuing until 5:06 p.m. reported Cody Beers, the District 5 WYDOT Public Relations Specialist in Riverton.