By Christopher F.
Amer
At 8:30 AM
on August 8, 2000 history was made when the submarine
H.L. Hunley rose out of the waters off
Charleston Harbor and was placed on a barge in
preparation for completing its final journey home (Figure 1). It had been 136 years since the
boat had last seen the light of day. For all
those years it had lain beneath the sediments
of the seafloor waiting for someone to discover
it. That day arrived in early May 1995, when a team of divers from the National
Underwater Marine Agency (NUMA) working in cooperation with the South
Carolina Institute of Archaeology and Anthropology
got their first glimpse of the forward
hatch and snorkel box of the silent submarine.
What happened after that is no less a dramatic story than that of the subs
original exploits.
It was to take
almost a year and a half to sort out the ownership/custodianship issue and over
half a decade before the sub would break the surface. Many of our readers are
familiar with the early history of the submarine, its discovery and the events
leading up to the decision to recover the boat. It is to this latter subject
and the completion of the journey home that I will devote this article. For
those readers who would like to bone up on the history of the Hunley and
the history of the project since 1995 here are some places to go for
information: http://www.hunley.org; and Hunley updates in past issues of
Legacy, Vol. 1, Nos. 1 and 2; Vol. 2, Nos. 1, 2 and 3; Vol. 3, No. 2;
Vol. 4, Nos. 1-3; and Vol. 5, No. 1.
Why Bring The Hunley
Up?
By early 1999 it
was apparent to everyone involved in the Hunley Project that the
submarine would have to be recovered. Issues loomed large in the face of the
South Carolina Hunley Commission. Foremost among these issues was the
protection of the Hunley, which by an agreement signed by the State and
Federal governments in 1996, belonged to the Federal government but would remain
in the care of the State in perpetuity. Rumors of a bounty placed on any part
of the Hunley that could be recovered were rampant, and the
round-the-clock surveillance by the Navy and Coast Guard was eating up the
budget.
Then there was the
conservation issue. While the Hunley was entombed in its protective
mantle of sediments it remained in a relative state of equilibrium with its
environment isolated from the deleterious effects of seawater and oxygen.
However, after the 1996 assessment, which exposed approximately one-third of the
hull, those effects could once again nibble away at the boat's fabric.
Then there was the
pressure from the political arena as well as demands from the public to protect
the boat and provide the world with a view of this artifact that had come to
represent to many the spirit the Confederacy–the underdog in the conflict
sometimes referred to as "The Unnecessary War." And to provide the brave crew
who perished in the Hunley's final voyage with an appropriate burial
along side the Hunley's two other fallen crews. To add to the tension,
all this was happening at a time when South Carolinians were hotly debating the
disposition of the Confederate Battle flag then flying atop the State House
dome.
Lastly, though by
no means least, was the scientific reason. The Hunley can be considered
the great-grandfather of the modern-day leviathans that silently slip beneath
the oceans of the world. The feat of a submarine sinking an enemy ship was not
to be repeated for over half a century when German U-Boats sank Allied shipping
during the First World War. It was readily apparent to those of us in the 1996
assessment that the Hunley was much more sophisticated then had been
previously imagined. Far from being a product of desperation, slapped together
from a boiler and spare parts, the exterior of this submarine was sleek and
suggested a sophistication of design and implementation born of experience and
testing. After all, James McClintock, Baxter Watson, Horace Hunley and the
members of the Singer Submarine Corps (aka. the Confederate Secret Service) had
already built and tested two other designs before embarking on the
Hunley. If the exterior surprised us in that way, surely the interior
held far more surprises that had the potential to rewrite, or at least add a
substantial chapter to, the history of submarine development.
Who, How, When, How
Much
With all that in
mind the questions became obvious to the Commission; who would raise the sub,
how would it be raised, conserved and exhibited, when would all this happen, and
the ultimate question, how much would all this cost. Since as early as 1995,
SCIAA had addressed the issue of cost when the
Hunley Project Working
released its management plan for dealing with the site and at the request of the
Commission estimated between 12 and 20 million dollars for the recovery and
conservation effort, a number that has stood the test of time. For the next
half decade the Commission would focus its attention on answering these
questions and securing a place for the sub to reside in perpetuity.
With an approximate
dollar value in mind the Commission formed the Friends of the Hunley to
provide fundraising and management oversight of the project. In the Fall of
1999, the Friends sponsored the Hunley Symposium. The purpose of this
three-day-meeting was to gather together many of the world's top marine metals
conservators and experts who had dealt with large metal objects, especially
submarines, and come up with a consensus of how to raise and preserve the
Hunley. Dr. Robert Neyland, Hunley Project Manager, opened the
meeting by saying that, "Hunley is the most difficult composite iron
artifact ever undertaken, and it is by far the largest and most complex object
ever recovered." The work that had been undertaken to date and the planning
that emanated from the symposium working sessions let Michael McCarthy from the
Western Australian Maritime Museum's Department of Maritime Archaeology to
state, "Hunley is raising the bar for underwater archaeology and
conservation. Not only is she viewed as a significant object of history, but
also a significant research and science project; this is perhaps the most
exciting find of the century." From this meeting-of-the-minds came the
plan that, the following year was to be implemented to recover the
Hunley.
While securing a building that would be transformed into a state-of-the-art
conservation facility for the submarine, the Commission and Friends of the
Hunley set about selecting the players that would actually do the work
(Figure 2). Dr. Robert Neyland had been brought in to head up the recovery
project. Oceaneering International, Inc. was selected to draft the recovery
plan and drive the recovery operation. Archaeology would be conducted by
archaeologists from the Naval Historical Center, National Park Service's
Submerged Cultural Resource Unit, the Underwater Archaeology Division of SCIAA,
and a number of contract archaeologists. This international team would work
beside the Oceaneering team to recover not only the submarine, but also the
information contained at the site, and ensure that the operation was a success.
Unlike most other underwater archaeology projects the recovery of the
Hunley would be conducted as a commercial operation. To do that the
archaeologists had to be trained in commercial diving protocols and in the use
of commercial diving equipment. Through April 2000, Division staff spent many
long hours with the recovery team training in the use of the Superlyte 17 diving
helmets in the low visibility water off Charleston.
On the
afternoon of May 12, 2000 Senator Glenn McConnell announced at a press
conference that the
Hunley Recovery Project had begun. Now started a
battle against time to get the submarine up before hurricane season and the
inevitable bad weather that would descend on the South Carolina coast. The
project was divided into two phases. During the first phase the team would work
to expose the hull, which lay from three to eight feet below the sediments of
the seafloor. Diving from a 180-foot oil rig tender the team worked 12-hour
days, each team member logging up to four-and-one-half-hour dives per day,
digging a trench around the sub 100-feet-long and 40-feet-wide and 5-feet-deep
to prepare the boat to receive the lifting equipment (Figures 3 and 4).
By the end of June
the site was ready for the
suction piles and lifting truss to be installed (Figures 5-8). The plan was to
sink suction piles into the seafloor approximately 4 feet forward and astern of
the hull's extremities. These piles, each weighing 40 tons, would become a
stable base for positioning the lifting truss over the submarine. The hull
would then be slung beneath the 13-ton truss and the sub and truss lifted as a
unit. To position these heavy materials would require the utmost precision and
full cooperation from the weather as they would be deployed from
a floating barge crane. Unfortunately, the weather was not totally
understanding in this matter, as the summer winds occasionally abated the rough
waters and ground swells, characteristic of this stretch of water.
Plan B
necessitated using a stable platform to complete the second phase of the
project, the recovery. After much searching, red tape, and paperwork, this
platform was secured. In late July, the 600-ton jack-up crane barge,
Karlissa B., slowly made it's way through Charleston Harbor to Pier Mike
at the old Naval Base. The B. had been under tow for almost
two weeks on it's trip from the Dominican Republic to South Carolina. When it
arrived more than a few of us were scratching our heads, wondering what we were
in for.
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Working off the
Karlissa B. turned out to be quite an experience, one that most of us
will not soon forget. For the final phase of the operation we went to a 24-hour
work schedule with 12-hour shifts (Joe Beatty and I won the draw for the
not-so-coveted night shift while Jim Spirek worked the day). The "vampire
shift," as the 7 PM to 7 AM shift came to be affectionately known, turned out to
be fairly decent. We experienced very few visitors, press, or VIPs to slow down
the work and the lights, both underwater and topside lent a Disneyland-like air
to the work. For each dive, from two to four divers descended into the murky
water in a cage on a motorized hoist–two archaeologists and two Oceaneering
divers. Visibility on the bottom at 30 to 40 feet varied from zero to two or
three feet, and very rarely exceeded that. Consequently, it usually made little
difference what time of the day one dived, except that when the visibility
improved there was more sea life visible at night as the nocturnal creatures
came out to feed and frolic around one's face plate drawn to it by the helmet
lights.
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The Karlissa
B. was stationed some 75 feet to port of the Hunley while a materials
barge was moored off the boat's starboard side. The materials barge carried the
suction piles and truss, as well as the excavation equipment and spare anchors.
It would also become the transport vessel for the submarine on its voyage
through Charleston Harbor. Personnel transportation to-and-from the two barges
was facilitated by a Billy Pugh or by boat, although many of us preferred the
aerial ride because of the spectacular views each ride afforded us (some people
pay money for such rides) (Figure 8).
Working around the
clock, the Hunley Recovery Team carefully, and with
rocket-science-accuracy (well, almost), placed the suction piles and installed
the truss over the hull of the Hunley. The divers used water jets to
carve tunnels beneath the hull so that the nylon lifting straps could be
installed. By the end of the first week of August, all 32 slings were in place
and taking the full weight of the submarine. A computer on the surface
monitored the strain on each sling via load cells installed on the truss.
Everything was checked and rechecked, then checked again. In each person's mind
was the knowledge that we were about to lift a prototype. There would be no
second chance if things went wrong.
August 8th dawned
with sunny skies and a slight breeze that kicked up small waves atop the
perennial ground swell. Onboard the
Karlissa B. preparations for the
lift had been in full swing since before dawn. The National Geographic team was
busily fitting cameras onto the 3-ton lifting block of the crane to capture
images of the sub rising out of the water, while the rest of the team finished
their chores and secured positions from which to view the
Hunley making
its encore appearance. By eight o'clock one of the hopper barges used for
collecting and disposing of channel and harbor sediments had been placed up-wind
to act as a breakwater. These barges are the largest of their type in the
world. This one dwarfed the
B., which itself stood 30 feet above the
waves.
At 8:59 AM, the cable on the 300-ton crane became
taught and slowly the
Hunley made its way into daylight. With kid
gloves, crane operator Jenkins Montgomery gingerly placed the 23-ton load on the
deck of the heaving materials barge and the load was readied for its 3-hour trip
to the Warren Lasch Conservation Center at the Old Naval Base (Figures 9 and
10). Today, looking at the news footage of the voyage, it is truly amazing–500+
boats accompanying the barge, reenactors on shore firing 21-gun salutes, crowds
along every inch of waterfront from Fort Moultrie to the bridges. From the
vantage point of riding in on the barge, it was magical. Aside from being at
the epicenter of the festivities, it was the first time that those of us who had
worked for so many years on the submarine had actually seen the entire boat.
Those of us lucky enough to have been on dives sporting good
visibility could remember seeing both hatches from the same vantage point, but
never the entire hull (Figures 11 and 12).
Much of the early
part of the barge ride was spent checking the sprinkler system that kept the
hull wet and studying the details of the hull that had eluded us for so many
years. However, the sheer magnitude of the boat escort and spectators soon drew
our attention from the
Hunley (Figures 13 and 14). Perhaps one of the
more interesting points of the trip was having take-out-pizza delivered to us
mid-harbor by the harbor police.
Too soon for many of us, we arrived at Pier Juliet. One last leg in the journey
home had yet to be completed. Slung beneath a huge giant
mobile crane, the 137-year-old submarine made
its way along the last one-quarter-mile to the Warren Lasch Conservation Center
(Figure 15 and 16). There it would enter its final phase of the work. Its
protective mantle of concreted sediments that had helped to preserve its fabric
for so long will be removed so the archaeologists can gain entry to the hull and
explore its secrets. The hull will go through a lengthy conservation process
(up to 10 years) while the salts are removed from the cast and wrought iron
components and the hull is made stable for curation. Then and only then will
the historic sub be put on display in a yet-to-be-built wing of The Charleston
Museum. The proposed exhibition will focus on the
Hunley, its foe, USS
Housatonic, and submersible development during the Civil War. The
Hunley will be the centerpiece, but the exhibition will also include
artifacts from inside the submarine and the
Housatonic to tell the story,
as well as a scale replica of James McClintock's first submarine,
Pioneer. The replica was built by interns at the Bosch Company, in
Charleston, and was donated to The Charleston Museum last year.
Probably one of the
more significant and fitting aspects of the project will be the burial of the
Hunley's last crew. The remains of Lieutenant George Dixon and his crew
will be exhumed from their iron coffin next spring and laid to rest beside their
fallen comrades–the crews from the first two sinkings–at Magnolia Cemetery. At
that point their mission will be finally ended.