USS Shiloh (1865)

USS "Shiloh", a single-turreted, twin-screw monitor, was awarded for the construction on 24 June 1863 to George C. Bestor of Peoria, IL; and her keel was laid down later that year at the yard of Charles W. McCordat of St. Louis, MO. However, while "Shiloh" was still under construction, USS|Chimo|1864|6, one of the first of the "Casco"-class monitors to be launched, was found to be unseaworthy.

Though the original designs for the "Casco"-class monitors were drawn by John Ericsson, the final revision was created by Chief Engineer Alban B. Simers following Rear Admiral Samuel F. Du Pont's failed bombardment of Fort Sumter in 1863. By the time that the plans were put before the Monitor Board in New York, NY, Ericsson and Simers had a poor relationship, also Chief of Naval Construction John Lenthall had little connection to the board. This resulted in the plans being approved and 20 vessels ordered without serious scrutiny of the new design. $14 million US was allocated for the construction of these vessels. It was discovered that Simers had failed to compensate for the armor his revisions added to the original plan and this resulted in excessive stress on the wooden hull frames and a freeboard of only 3 inches. Simers was removed from the control of the project and Ericsson was called in to undo the damage. He was forced to raise the hulls of the monitors under construction by 22 inches to make them sea-worthy.

On 25 June 1864, the Navy Department ordered "Shiloh's" builder to raise her deck to give her sufficient freeboard, then on 17 June 1865, after the end of the Civil War had prompted an American naval retrenchment, work on "Shiloh" was ordered suspended. Nevertheless, it was decided to proceed with her launching; and an unsuccessful attempt to get her off the ways was made on 3 July 1865. After much labor, the ship finally entered the water 11 days later.

"Shiloh" saw no service before being laid up in 1866 at Mound City, IL. On 15 June 1869, she was renamed USS|Iris. In the same year, she was moved to New Orleans, LA and laid up there. On 17 September 1874, the monitor was commissioned; but she saw no significant service before she was decommissioned on 5 October 1874 and again laid up at New Orleans, LA on 15 October 1874. She was sold later that year.

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