USS Wissahickon, a 691-ton Unadilla class screw steam gunboat, was built at Philadelphia, Pennsylvania. Commissioned in November 1861, she initially served in the Gulf of Mexico and on the Mississippi River, where in April-July 1862 she participated in the capture of New Orleans, bombardment of Grand Gulf, two runs past the Confederate fortifications commanding the river at Vicksburg and a battle with the ironclad CSS Arkansas.

After repairs at Philadelphia in August-October 1862, Wissahickon joined the blockade of the coasts of South Carolina, Georgia and eastern Florida. She took part in bombardments of Fort McAllister, Georgia, in late 1862 and early 1863 and in the destruction of the privateer Rattlesnake (ex-CSS Nashville) on 28 February 1863. In March and June 1863, Wissahickon destroyed one blockade running steamer and helped to destroy another. During the summer, she bombarded Forts Wagner and Sumter, off Charleston, South Carolina.

Wissahickon spent the rest of the Civil War patrolling off South Carolina and in expeditions into the inland waters of that state and Georgia. She went to New York in June 1865, after the end of hostilities, and was decommissioned there at the beginning of July. USS Wissahickon was sold in October 1865 and soon became a merchant vessel under the name Adele. She was employed in commercial service for some twenty more years.