System Information and Research Division (2014). "Arkansas Road Log Database". Arkansas State Highway and Transportation Department. Archived from the original(MDB) on August 29, 2017. Retrieved March 27, 2016.
System Information and Research Division (2014). "Arkansas Road Log Database". Arkansas State Highway and Transportation Department. Archived from the original(MDB) on August 29, 2017. Retrieved March 27, 2016.