Petersburg, Va. Pontoon Bridges Across The Appomattox River (U.S. Civil War) This title refers to the strategic use of pontoon bridges during the U.S. Civil War in Petersburg, Virginia, specifically across the Appomattox River. These temporary wooden bridges were essential for the movement of troops and supplies during the long Siege of Petersburg (1864-1865), which was a significant part of the larger Richmond-Petersburg Campaign. The use of pontoon bridges allowed both Union and Confederate forces to traverse the river, enabling them to establish footholds on opposite banks and continue their military operations. This depiction likely showcases an instance where these bridges were employed or provides historical information about their role in this crucial conflict.