CSS Georgia: As artifact conservation continues, public will soon be able to read detailed report on this unique Savannah ironclad

Valve assembly has dozens of parts (U.S. Army Corps of Engineers)

Historians and archaeologists don’t know whether the builders of the CSS Georgia, an ironclad that guarded the Savannah River in the city of same name, worked from blueprints. None have been found in the years since the Civil War.

But that doesn’t mean there’s no way to describe the Confederate vessel’s propulsion, the angle and construction of protective casemate or to estimate the vessel’s width and length.

Dahlgren recovered in Sept. 2015 (USACE)

Between 2013 and 2017, machinery and divers working at the CSS Georgia’s resting place a few miles from downtown Savannah recovered thousands of artifacts. The project was necessary before a major harbor deepening project began: The boat’s remains lie in the main shipping channel.

An upcoming report from the Savannah office of the U.S. Army Corps of Engineers will provide a general analysis about the artifacts and an overview of the project. The finds included nearly a half dozen cannon, a propeller and large pieces of the casemate, fashioned from – of all things – interlocking sections of railroad iron.

Officials believe the artifacts will answer a lot of questions about the vessel.

Divers, working in visibility that one likened to chocolate pudding, slipped beneath the surface of the Savannah River and down to the disarticulated remains of the vessel that was scuttled by its crew in December 1864 when the Yankees arrived at the seaport’s front door.

The Corps recovered a significant portion of the CSS Georgia, which served as what’s called a floating battery. In the years since, items large and small have been cleaned at Texas A&M University's Conservation Research Laboratory. (The lab's operations have been affected by the recent coronavirus pandemic.)

“Conservation continues,” says Julie Morgan, district archaeologist for the Corps. “The conservation process is slowing down considerably as the artifacts that are now in conservation are more complex -- they have more individual components and are comprised of multiple metals -- so the number of artifacts finishing completion is slowing.”

Morgan and experts brought in for the project have been especially fascinated by the ironclad’s propulsion system and engines. It’s known the one-off CSS Georgia – built not far from where it sank -- was underpowered.

Locals derisively called it the “Mud Tub” because it was unable to leave the city and attack Federal ships that had bottled up Savannah’s river entrance. But they may have gotten something better. The CSS Georgia became a strong element of extensive water defenses. It never fired upon the enemy, because the enemy decided to probe vulnerabilities elsewhere.

Julie Morgan has researched the CSS Georgia for years (USACE)

Morgan provided two examples to the Picket of the complexity of some items.

The Conservation Research Laboratory had to separate seven sections of a valve assembly. They removed rubber gaskets and about 52 nuts and bolts.

And two engine cylinders, each about 48 inches long, must be carefully moved with a forklift. And conservators must precisely cut to reach the cylinders’ interior.

It’s important to note the wreck site of the CSS Georgia was not undisturbed. 

Dredging hits and scars, along with salvage attempts not long after the Civil War, made the site a jumble of rotting wood, chunks of casemate and loose rail and machinery.

Still, the trove of artifacts, have an important story to tell of innovation when builders had access to less-than-ideal armor and technology.

The CSS Georgia belongs to the U.S. Navy, under the auspices of the Naval History and Heritage Command.

Carefully packed shipment or ordnance (USACE)

“To date, the conservation lab has made two shipments of artifacts to the Naval History and Heritage Command,” said Morgan. “Packing the artifacts is very time consuming as everything must be wrapped and packed in archival quality materials.”

The items are being stored at the Washington Navy Yard, where officials are cataloging and storing them in hopes that a museum will eventually come forward with a plan to exhibit the artifacts and tell the CSS Georgia’s story.

The public will have an opportunity to read all about it in Morgan’s report.

“The Corps is currently reviewing the revised draft and the final version will be printed in late April,” she said. “Once that document has been accepted by the government it will be made available to the public through the district’s website.”