Martin, John (August 3, 2007). "Officials say twin bridges safe". Local News. Evansville Courier Press. Archived from the original on June 6, 2011. Retrieved April 26, 2011.
Martin, John (August 3, 2007). "Officials say twin bridges safe". Local News. Evansville Courier Press. Archived from the original on June 6, 2011. Retrieved April 26, 2011.