Planning and Research Division (March 28, 2012). "Arkansas Road Log Database". Arkansas State Highway and Transportation Department. Archived from the original(MBD) on June 23, 2011. Retrieved April 13, 2012.
Planning and Research Division (March 28, 2012). "Arkansas Road Log Database". Arkansas State Highway and Transportation Department. Archived from the original(MBD) on June 23, 2011. Retrieved April 13, 2012.