I spotted a couple of interesting projects located at El Paso http://www.elpasomobility.org/index.php One of them Spur-601 is now completed.
And from what I read at http://www.texasfreeway.com/ElPaso/elpaso.shtml
QuoteEl Paso sustained only one major freeway cancellation. The Trowbridge-Montana freeway (US 62/180) leading east out of downtown was cancelled. The trans-mountain section of Loop 375 is currently not planned to be a freeway, but all the rest of 375 is or will be a freeway. A 1999 study recommended the completion of the western Border Freeway and even extended it further west than the 1963 plan.
The cancelled gap known now as the Montana corridor, is under study for a new project including the addition of express lanes.