The CFI, also known as a Displaced Left Turn (DLT), and Crossover Displaced Left (XDL), was first seen in Mexico over 20 years ago, where there are reportedly upwards of 50. They are catching on fast in the United States. The nation's third opened in April 2006 in Baton Rouge, LA for a total cost of $4.4 million. Where vehicles had been delayed an average of 4-minutes before the project, this was reportedly reduced to below 1-minute after. The fourth CFI opened in Salt Lake in 2007, and a month later the fifth opened in St. Louis. These state DOTs have been so impressed that many more are under construction, and even more soon will be.