The Trump administration has taken another step toward building a wall on the U.S. border with Mexico, even as funding for the project remains in question.
U.S. Customs and Border Protection announced Thursday it will award contracts to four companies to build four concrete prototypes for the wall.
CBP is providing few details of the concrete prototypes and says funding for four other prototypes for a see-through structure will be awarded next week. The prototypes will cost a total of $3.6 million and will be built in San Diego.
The four companies announced Thursday are Caddell Construction Co. of Montgomery, Alabama; Fisher Sand & Gravel Co. of Tempe, Arizona; Texas Sterling Construction Co. of Houston; and W.G. Yates & Sons Construction Co. of Philadelphia, Mississippi.