Over the last several weeks, construction has rapidly moved along at Grayson-Collin Electric Cooperative's new headquarters in Van Alstyne. At the office building, all exterior walls have been framed and both sheathing and stone/brick veneer are being installed. In addition, the hardened area has been completed, and other interior walls are being framed throughout the facility. At the warehouse building, exterior work is almost complete and interior finish-out is taking place. Similarly, the maintenance building is rapidly approaching completion, with primarily interior work remaining.