1 00:00:06,520 --> 00:00:10,680 NARRATOR: Sally is perhaps the most unwelcome guest among the current Atlantic storm. 2 00:00:10,760 --> 00:00:13,440 Hurricane Paulette is over Bermuda, and Renee, 3 00:00:13,520 --> 00:00:17,320 Teddy and now Vicky, are spinning over open waters. 4 00:00:19,880 --> 00:00:25,760 Primal, destructive, growing more and more dangerous every year. 5 00:00:29,240 --> 00:00:33,480 CHUCK: A hurricane represents a massive force of mother nature. 6 00:00:33,560 --> 00:00:35,560 You sure need to respect them. 7 00:00:36,800 --> 00:00:42,640 NARRATOR: Sally became a hurricane this morning packing 90 mile an hour wind. 8 00:00:42,720 --> 00:00:48,760 Off the coast of Florida, an unexpected pile of rocks and a ship's bell, 9 00:00:48,840 --> 00:00:54,080 what do they reveal about how monster storms shape America's past? 10 00:00:55,760 --> 00:00:57,800 GREG: It's a hurricane victim. 11 00:00:57,880 --> 00:01:01,880 And hurricanes are some of the most violent forces that happen on planet Earth. 12 00:01:01,960 --> 00:01:07,480 JOHN: Had this hurricane not happened, America might have looked very, very different. 13 00:01:08,320 --> 00:01:11,440 NARRATOR: And how does a sunken mass of subway cars 14 00:01:11,520 --> 00:01:15,840 give hope to resisting future hurricanes? 15 00:01:15,920 --> 00:01:19,040 ART: Epic things had happened on the seabed. 16 00:01:19,120 --> 00:01:24,600 Subway cars were rotated, shifted, moved or completely obliterated. 17 00:01:41,440 --> 00:01:44,760 DELLA: Dealing with hurricanes is very emotionally taxing 18 00:01:44,840 --> 00:01:48,080 but it's part of the price of living on this area of the Gulf Coast. 19 00:01:54,320 --> 00:01:56,720 NARRATOR: Every year hurricanes batter 20 00:01:56,800 --> 00:01:59,680 America's eastern and southern coastlines. 21 00:02:00,480 --> 00:02:03,080 They've been a menace for centuries. 22 00:02:03,160 --> 00:02:09,640 They destroy, disrupt and some even change the course of history. 23 00:02:15,840 --> 00:02:18,560 DELLA: There's a lot of, of shipwrecks in our bay 24 00:02:18,640 --> 00:02:21,320 but we always hoped to find the earliest ones. 25 00:02:24,320 --> 00:02:29,720 The Pensacola Shipwreck Survey was the brainchild of Dr Roger Smith. 26 00:02:29,800 --> 00:02:34,440 And Roger was a legendary archaeologist especially here in the Florida. 27 00:02:34,520 --> 00:02:37,560 He knew that Pensacola Bay had such high potential 28 00:02:37,640 --> 00:02:39,640 because very early in the 16th century 29 00:02:39,720 --> 00:02:43,840 there were Spanish um explorers uh poking around uh this area, 30 00:02:43,920 --> 00:02:46,280 looking for bays and harbours. 31 00:02:46,360 --> 00:02:49,040 Myself and, and Jim Spireck and Chuck Hewson, 32 00:02:49,120 --> 00:02:52,040 we always hoped that we would find some of the evidence 33 00:02:52,120 --> 00:02:54,000 of these early Spanish explorers. 34 00:02:57,600 --> 00:03:00,520 Sometimes we would dive on these sites that the fishermen 35 00:03:00,600 --> 00:03:04,600 or the shrimpers would show us and it was junk. 36 00:03:04,680 --> 00:03:10,080 Car bodies or piles of tyres or one time we found a pizza oven! 37 00:03:10,160 --> 00:03:12,440 But there was always that, that hope that the next dive 38 00:03:12,520 --> 00:03:15,760 was going to turn up something amazing. 39 00:03:15,840 --> 00:03:17,880 So, we kept on at it. 40 00:03:19,400 --> 00:03:22,040 I never dreamed, you know that we would be finding something 41 00:03:22,120 --> 00:03:25,160 so important historically and archaeologically. 42 00:03:29,440 --> 00:03:32,280 In the fall of 1992, we had been surveying 43 00:03:32,360 --> 00:03:35,000 at this particular place and had found some targets 44 00:03:35,080 --> 00:03:41,400 and the first dive um I believe was a, a piece of shrimp boat gear. 45 00:03:41,480 --> 00:03:45,160 The second dive I think was a car body, a Volkswagen Beetle or something. 46 00:03:45,240 --> 00:03:47,920 And so, the third dive it was mine and Chuck's turn 47 00:03:48,000 --> 00:03:50,160 and so we geared up and jumped in the water 48 00:03:50,240 --> 00:03:53,720 and Jim was on the boat for safety. 49 00:03:53,800 --> 00:03:59,720 The water's very dark there, you could not see even 12 feet. 50 00:03:59,800 --> 00:04:06,200 I was on my knees holding the anchor at the, at the bottom of the buoy line. 51 00:04:06,280 --> 00:04:11,280 Chuck swam out and did a circle, didn't find anything and out another few feet. 52 00:04:12,440 --> 00:04:14,800 By that time was out of my range of vision. 53 00:04:15,720 --> 00:04:18,000 A few minutes later he comes swimming back up the line 54 00:04:18,080 --> 00:04:20,760 and he looks at me and goes like this. 55 00:04:20,840 --> 00:04:23,880 So his eyes were real big, I knew he had found something interesting, 56 00:04:23,960 --> 00:04:29,600 so I followed him back down the line to this big pile of rocks. 57 00:04:31,680 --> 00:04:35,720 Here in Pensacola we don't have naturally occurring rocks like that. 58 00:04:40,400 --> 00:04:43,760 The top layer was oyster, oyster shell. 59 00:04:43,840 --> 00:04:47,080 Generations and generations of oysters had lived 60 00:04:47,160 --> 00:04:50,160 and died on this, this pile of rocks. 61 00:04:51,440 --> 00:04:54,840 And he started moving this top layer of rocks, 62 00:04:54,920 --> 00:04:56,880 the rock went deeper and deeper and deeper 63 00:04:56,960 --> 00:05:03,080 of these varying sizes of these kind of roundish river cobbles. 64 00:05:04,680 --> 00:05:06,040 Now we got excited. 65 00:05:06,120 --> 00:05:08,360 Because these kinds of rocks were used as ballast 66 00:05:08,440 --> 00:05:12,400 in these old vessels to keep them stable as they were sailing across the ocean. 67 00:05:14,120 --> 00:05:18,680 Once we finally got down to the very bottom layer of rock underneath that 68 00:05:18,760 --> 00:05:21,760 was this Beautiful carved wood. 69 00:05:21,840 --> 00:05:24,840 And that's when we knew for sure, we had a shipwreck. 70 00:05:27,040 --> 00:05:28,680 I remember getting on the phone with Roger 71 00:05:28,760 --> 00:05:32,600 and saying "Roger you need to come and see this." 72 00:05:32,680 --> 00:05:34,800 We had no idea the age of it but it looked like it 73 00:05:34,880 --> 00:05:38,600 was a historic shipwreck so we shifted our focus 74 00:05:38,680 --> 00:05:42,640 from survey of Pensacola Bay to focusing on this site 75 00:05:42,720 --> 00:05:46,560 that had the potential to be something very old and very important. 76 00:05:49,720 --> 00:05:52,200 One of the local businesses in Pensacola donated 77 00:05:52,280 --> 00:05:56,800 a small wooden barge to us that we could anchor up on site 78 00:05:56,880 --> 00:06:00,680 and leave there and use as our excavation platform. 79 00:06:00,760 --> 00:06:04,520 But it was leaky and occasionally it would sink. 80 00:06:04,600 --> 00:06:08,200 So not a whole lot of work was going to happen till we could move the barge. 81 00:06:13,400 --> 00:06:15,400 SOT: So Jim, what's the plan for today? 82 00:06:23,720 --> 00:06:25,560 DELLA: We had found wooden structure 83 00:06:25,640 --> 00:06:29,960 and it wasn't just an isolated like little piece or a splinter of wood, 84 00:06:30,040 --> 00:06:34,080 this was major internal structural framing. 85 00:06:35,000 --> 00:06:38,080 We had no idea really the true age of it at that point. 86 00:06:38,160 --> 00:06:41,280 And so that's when we decided, well let's move over a little way. 87 00:06:41,360 --> 00:06:43,800 And we happened to come down right where that heel 88 00:06:43,880 --> 00:06:48,680 of the mast is attached very securely into the hull of the ship. 89 00:06:50,840 --> 00:06:54,280 Finding this wooden structure was huge for us 90 00:06:54,360 --> 00:06:58,960 and that mast step was just classic 16th century. 91 00:07:00,960 --> 00:07:06,680 NARRATOR: The 1500s is when European exploration in North America really kicked off 92 00:07:06,760 --> 00:07:11,600 before the Pilgrims or the English settlements at Jamestown. 93 00:07:11,680 --> 00:07:16,880 This ship dates to that era. But where did it come from? 94 00:07:16,960 --> 00:07:19,000 And who was on-board? 95 00:07:19,080 --> 00:07:21,400 DELLA: We started using the induction dredge which is like 96 00:07:21,480 --> 00:07:23,640 an underwater vacuum cleaner to go down in layers 97 00:07:23,720 --> 00:07:27,440 and very carefully recover whatever artefacts we found. 98 00:07:28,680 --> 00:07:31,920 We began to see really amazingly preserved artefacts. 99 00:07:34,720 --> 00:07:40,640 Things like pieces of rope, hemp line even leather shoe soles. 100 00:07:45,320 --> 00:07:48,680 JOHN: I had a phone call where I was invited to come to Florida 101 00:07:48,760 --> 00:07:54,360 to serve as the conservator for this ship and to take care of the artefacts. 102 00:07:56,800 --> 00:07:58,680 We were trying to find as many clues as we could 103 00:07:58,760 --> 00:08:00,960 to help identify the origin of the vessel. 104 00:08:03,240 --> 00:08:08,680 Each day, you know, something different would show up in remarkable condition. 105 00:08:09,440 --> 00:08:12,520 We found some real plain unglazed pottery, 106 00:08:12,600 --> 00:08:17,320 it was just coarse earthenware we actually call them olive jars. 107 00:08:17,840 --> 00:08:19,680 Well when we found olive jars it was one of the 108 00:08:19,760 --> 00:08:24,480 first big clues that we're working with a Spanish shipwreck 109 00:08:24,560 --> 00:08:27,040 because these big jars we know 110 00:08:27,120 --> 00:08:29,200 the Spanish carried olives in them. 111 00:08:33,000 --> 00:08:35,800 NARRATOR: Spain establishes its first permanent settlement 112 00:08:35,880 --> 00:08:40,400 in Florida at St. Augustine in 1565. 113 00:08:40,480 --> 00:08:47,000 But the artefacts coming from the ship are pointing to an earlier date: the 1550s. 114 00:08:47,080 --> 00:08:50,040 Could these be the remains of one of the earliest 115 00:08:50,120 --> 00:08:54,360 European colonizers on the American mainland? 116 00:08:57,600 --> 00:09:00,520 DELLA: On one side of the ship, as we were excavating, 117 00:09:00,600 --> 00:09:02,200 we ran out of hull structure. 118 00:09:02,280 --> 00:09:06,080 There was nothing else there and the framing 119 00:09:06,160 --> 00:09:09,600 and the ship's timbers were, were shattered. 120 00:09:11,000 --> 00:09:13,480 JOHN: We found hundreds and hundreds of the small 121 00:09:13,560 --> 00:09:15,720 spikes that were used to attach 122 00:09:15,800 --> 00:09:20,800 the planking to the hull frame and so they were scattered on the wreck site 123 00:09:20,880 --> 00:09:23,960 and almost all of them are bent. 124 00:09:24,040 --> 00:09:26,600 Many of them are even broken. 125 00:09:28,120 --> 00:09:30,440 It was obvious that the ship pounded up and down 126 00:09:30,520 --> 00:09:34,160 and eventually it split open and broke apart like that. 127 00:09:38,760 --> 00:09:41,040 DELLA: Whatever had caused this ship to wreck 128 00:09:41,120 --> 00:09:44,440 was a violent, catastrophic occurrence. 129 00:09:44,520 --> 00:09:46,440 NARRATOR: Like a hurricane! 130 00:09:49,800 --> 00:09:54,960 DELLA: There was only one colonizing expedition from the 1550s that we could think of 131 00:09:55,040 --> 00:09:56,960 that had wrecked on the Gulf Coast. 132 00:09:57,040 --> 00:10:01,720 So all of these clues that we began to put together began to make us think, 133 00:10:01,800 --> 00:10:03,640 maybe this is Luna. 134 00:10:05,280 --> 00:10:08,760 NARRATOR: According to historical records, a Spanish explorer, 135 00:10:08,840 --> 00:10:12,840 Don Tristan de Luna Arellano, founds a settlement somewhere 136 00:10:12,920 --> 00:10:17,000 on the coast of the Gulf of Mexico in 1559. 137 00:10:17,720 --> 00:10:23,640 It lasted just two years before vanishing without a trace. 138 00:10:26,480 --> 00:10:31,080 JOHN: The records for the Spanish colonial effort in the New World are vast 139 00:10:31,160 --> 00:10:34,800 and voluminous and well preserved in general. 140 00:10:37,080 --> 00:10:41,160 I was always interested in archaeology and the thrill of exploration and discovery, 141 00:10:41,240 --> 00:10:47,520 but the documents provide so much more rich detail and made it much more personal. 142 00:10:49,760 --> 00:10:52,320 The Luna expedition was the most well financed 143 00:10:52,400 --> 00:10:54,760 and certainly the most ambitious attempt 144 00:10:54,840 --> 00:10:58,360 to establish a Spanish foothold in Florida. 145 00:11:00,120 --> 00:11:02,640 DELLA: The search for the Luna land site has been ongoing 146 00:11:02,720 --> 00:11:05,680 at Pensacola for years and years. 147 00:11:05,760 --> 00:11:09,160 We always joked that we might find a plank 148 00:11:09,240 --> 00:11:12,720 that said 'Luna was here' carved into it. 149 00:11:12,800 --> 00:11:18,840 JOHN: Luna, arrived in 1559 with a fleet and they unloaded 1500 people, 150 00:11:18,920 --> 00:11:23,080 500 soldiers and a thousand additional colonists. 151 00:11:23,160 --> 00:11:28,160 He had no way to know that a hurricane was coming. 152 00:11:28,240 --> 00:11:32,480 The wreck showed clear evidence of being driven ashore 153 00:11:32,560 --> 00:11:35,720 and that actually corresponds quite well 154 00:11:35,800 --> 00:11:38,480 with a letter that was written by Tristan de Luna 155 00:11:38,560 --> 00:11:41,880 to the King of Spain in which he describes 156 00:11:41,960 --> 00:11:47,080 that a storm hit about five weeks in. 157 00:11:47,160 --> 00:11:51,160 The hurricane arrived at night and then for the next 24 hours 158 00:11:51,240 --> 00:11:52,680 the winds came from all directions 159 00:11:56,360 --> 00:12:00,880 and he said that the ships were broken free from their anchors, 160 00:12:00,960 --> 00:12:05,600 driven ashore and broken open and destroyed. 161 00:12:08,200 --> 00:12:12,560 But if this was a ship from the Luna expedition, it raises a whole new question. 162 00:12:13,800 --> 00:12:16,360 We know that Luna lost seven ships in that storm. 163 00:12:18,800 --> 00:12:20,200 Where were the rest of them? 164 00:12:27,000 --> 00:12:30,760 We got a very large grant from the State of Florida 165 00:12:30,840 --> 00:12:34,640 to continue the survey to try to find the other ships 166 00:12:34,720 --> 00:12:37,760 and confirm we'd located Luna's fleet. 167 00:12:38,560 --> 00:12:43,960 So, we purchased a really state of the art magnetometer. 168 00:12:44,040 --> 00:12:45,760 GREG: I started here right after Hurricane Ivan, 169 00:12:45,840 --> 00:12:48,640 that was my first hurricane at the University of West Florida. 170 00:12:48,720 --> 00:12:51,400 Before that I'd been doing remote sensing surveys 171 00:12:51,480 --> 00:12:54,840 and that's some of the expertise that I brought to the program. 172 00:12:56,240 --> 00:13:00,960 Magnetometers can sense ferrous metals which is typically iron 173 00:13:01,040 --> 00:13:04,360 in a ship-wreck and that's how we find these wrecks. 174 00:13:05,800 --> 00:13:09,120 JOHN: It seemed logical if the first ship was in this area 175 00:13:09,200 --> 00:13:13,560 let's continue to look around that ship with this new magnetometer. 176 00:13:15,680 --> 00:13:16,760 GREG: That's where we got lucky. 177 00:13:18,320 --> 00:13:19,800 With a magnetometer you can never really know 178 00:13:19,880 --> 00:13:22,280 what you have until you put divers in the water. 179 00:13:22,360 --> 00:13:24,400 It's actually diving on these remote sensing anomalies 180 00:13:24,480 --> 00:13:27,560 that we find to find out what they are. 181 00:13:27,640 --> 00:13:30,240 And when we began finding the olive jar fragments, 182 00:13:30,320 --> 00:13:32,240 the lead sheathing on the hulls 183 00:13:32,320 --> 00:13:34,480 that's when the light bulbs began going off. 184 00:13:36,840 --> 00:13:40,520 JOHN: We found enough little pieces of olive jar 185 00:13:40,600 --> 00:13:43,320 that we were convinced on day two that it was 186 00:13:43,400 --> 00:13:46,600 a Luna ship associated with the first one. 187 00:13:50,400 --> 00:13:55,600 One ship in the bay might be explained away as something random, 188 00:13:55,680 --> 00:13:57,800 but two ships near each other, 189 00:13:57,880 --> 00:14:00,840 that was an astoundingly important discovery. 190 00:14:02,400 --> 00:14:09,160 It confirmed in my mind that we absolutely positively did have the Luna fleet here. 191 00:14:12,240 --> 00:14:16,720 It meant that not only did we have a number more wrecks 192 00:14:16,800 --> 00:14:19,280 to find but that we also had 193 00:14:19,360 --> 00:14:22,000 that settlement site and it had to be close. 194 00:14:25,160 --> 00:14:27,600 NARRATOR: For nearly ten years the team searches 195 00:14:27,680 --> 00:14:31,320 for the location of Tristan de Luna's lost settlement. 196 00:14:31,400 --> 00:14:34,560 And finds nothing! 197 00:14:34,640 --> 00:14:37,360 JOHN: We had no archaeological evidence whatsoever 198 00:14:37,440 --> 00:14:39,600 to pin down where the settlement was. 199 00:14:51,840 --> 00:14:55,440 In the fall of 2015, a former student reported 200 00:14:55,520 --> 00:14:57,480 that he had found some Spanish artefacts 201 00:14:57,560 --> 00:15:01,800 in a newly cleared house lot and wanted us to take a look, 202 00:15:01,880 --> 00:15:04,400 thought they might be 16th century. 203 00:15:06,760 --> 00:15:09,760 My first reaction was okay great, you know we have a lot 204 00:15:09,840 --> 00:15:11,640 of people reporting a lot of things 205 00:15:11,720 --> 00:15:13,640 but something in the back of my mind I think you know, 206 00:15:13,720 --> 00:15:15,800 tickled my interest because of the fact 207 00:15:15,880 --> 00:15:18,680 that it was on a particular lot in a particular neighborhood 208 00:15:18,760 --> 00:15:21,840 right where we thought Luna might be located. 209 00:15:22,800 --> 00:15:24,760 It turns out that it was identical to the kinds 210 00:15:24,840 --> 00:15:28,240 of olive jar that had already been found on the shipwrecks. 211 00:15:35,160 --> 00:15:38,160 NARRATOR: The team investigating the 16th Century Spanish 212 00:15:38,240 --> 00:15:42,000 shipwrecks hopes the pottery shards found on shore 213 00:15:42,080 --> 00:15:46,360 will finally lead them to the lost settlement of Tristan de Luna. 214 00:15:48,320 --> 00:15:50,480 JOHN: We called on current students and former students, 215 00:15:50,560 --> 00:15:53,520 everybody in the faculty and the staff, 216 00:15:53,600 --> 00:15:55,520 anybody who we could get out there. 217 00:15:55,600 --> 00:15:59,240 Then 5 days of intense fieldwork we found 218 00:15:59,320 --> 00:16:02,720 literally hundreds of pieces of olive jar. 219 00:16:02,800 --> 00:16:05,480 DELLA: I got really excited personally, thinking maybe this is it. 220 00:16:05,560 --> 00:16:10,840 One of the very first major expeditions to settle what is now the United States. 221 00:16:13,120 --> 00:16:15,000 JOHN: Once the neighbors started to realize 222 00:16:15,080 --> 00:16:17,760 the importance of the site they began to call themselves 223 00:16:17,840 --> 00:16:19,280 'America's First Neighborhood'. 224 00:16:22,440 --> 00:16:25,320 We did basically a year's worth of full-fledged shovel testing 225 00:16:25,400 --> 00:16:30,760 and dug more than 900 shovel tests across more than 50 acres. 226 00:16:32,760 --> 00:16:35,640 All the evidence indicates that this settlement was the largest ever attempted 227 00:16:35,720 --> 00:16:37,640 in 16th Century Florida. 228 00:16:37,720 --> 00:16:43,680 We are essentially digging up a very short-lived city. 229 00:16:43,760 --> 00:16:45,840 NARRATOR: The scale of the settlement confirms 230 00:16:45,920 --> 00:16:48,640 the Spanish crown equipped the expedition 231 00:16:48,720 --> 00:16:53,080 with everything needed to survive in the New World. 232 00:16:53,160 --> 00:16:58,520 But a major hurricane is a force few Europeans had ever experienced. 233 00:16:59,160 --> 00:17:02,800 When it arrived, the colony is helpless. 234 00:17:04,760 --> 00:17:07,480 JOHN: I've lived in Florida uh since 2001 235 00:17:07,560 --> 00:17:10,840 and I've been through quite a few hurricanes so I've seen enough to know 236 00:17:10,920 --> 00:17:14,520 that this storm must have been absolutely devastating. 237 00:17:21,080 --> 00:17:25,640 We do know from the documents that the hurricane caught them 238 00:17:25,720 --> 00:17:28,600 in the midst of construction and as a result 239 00:17:28,680 --> 00:17:34,240 they had not actually started to use the warehouse for storing food. 240 00:17:34,320 --> 00:17:38,960 And so, the hurricane wiped out not just the fleet 241 00:17:39,040 --> 00:17:41,640 but the food that they had stored on it. 242 00:17:42,600 --> 00:17:46,680 And it took 24 hours for the storm to pass completely through. 243 00:17:46,760 --> 00:17:50,520 Luna doubtless saw that his fleet was devastated 244 00:17:50,600 --> 00:17:54,080 and there was nothing lefty but hulks of broken ships 245 00:17:54,160 --> 00:18:00,720 and masts and lots and lots of supplies, barrels and boxes, crates. 246 00:18:00,800 --> 00:18:06,600 The Luna expedition could have changed the course of history in this continent. 247 00:18:06,680 --> 00:18:10,640 But overnight the settlers were transformed from 248 00:18:10,720 --> 00:18:12,840 part of the most ambitious and well financed 249 00:18:12,920 --> 00:18:16,520 colonial expeditions that Spain ever mounted to North America 250 00:18:16,600 --> 00:18:19,880 into starving refugees. 251 00:18:19,960 --> 00:18:23,800 Some of the settlers decided to throw in the towel and go home. 252 00:18:23,880 --> 00:18:28,160 Some, including Luna, struggled on for nearly two years. 253 00:18:28,240 --> 00:18:30,760 But ultimately the site was abandoned. 254 00:18:31,960 --> 00:18:35,560 Had this hurricane not happened America might have looked 255 00:18:35,640 --> 00:18:37,760 very, very different today. 256 00:18:38,920 --> 00:18:42,440 It's entirely possible even likely that because 257 00:18:42,520 --> 00:18:45,160 the Spanish would have had a really solid foothold 258 00:18:45,240 --> 00:18:48,760 in southeastern North America a full generation 259 00:18:48,840 --> 00:18:52,000 before the English settlers arrived at Jamestown. 260 00:18:52,080 --> 00:18:55,760 North America might simply have been Spanish North America. 261 00:18:57,080 --> 00:19:01,680 NARRATOR: Instead, the British and French come to dominate most of the continent. 262 00:19:02,600 --> 00:19:05,720 The Spanish settlements in Florida, like St. Augustine, 263 00:19:05,800 --> 00:19:08,840 eventually fall under British control. 264 00:19:12,480 --> 00:19:16,680 St Augustine remains the oldest continuously inhabited city 265 00:19:16,760 --> 00:19:22,760 in the United States and a victim of countless hurricanes 266 00:19:22,840 --> 00:19:24,280 since its founding. 267 00:19:30,840 --> 00:19:32,760 CHUCK: You've had ships coming and going 268 00:19:32,840 --> 00:19:37,320 to St Augustine for over 450 years now. 269 00:19:37,400 --> 00:19:40,960 At the same time, it's always had a treacherous inlet. 270 00:19:44,840 --> 00:19:47,640 There's a lot of job security if you're an underwater archaeologist 271 00:19:47,720 --> 00:19:52,240 in St Augustine because there have been so many shipwrecks over the years. 272 00:19:52,320 --> 00:19:57,440 We know there's a lot out there but finding them is what's tricky. 273 00:19:59,280 --> 00:20:03,560 We have an operation that can actually go out, finding shipwrecks at least until 274 00:20:03,640 --> 00:20:06,840 hurricane season cuts our dive season short. 275 00:20:10,600 --> 00:20:12,680 SAM: It was at the end of the field season 276 00:20:12,760 --> 00:20:17,760 so we were all pretty tired and we had this book 277 00:20:17,840 --> 00:20:23,360 of the various targets that we had and we said "let's go to this one, 278 00:20:23,440 --> 00:20:26,120 it's got a magnetic signature that looks interesting". 279 00:20:26,200 --> 00:20:32,360 CHUCK: We are blessed with really poor diving conditions here in St Augustine, 280 00:20:32,440 --> 00:20:34,600 it's pretty black down there. 281 00:20:35,280 --> 00:20:41,080 We do our best to pinpoint the exact location and then we will probe. 282 00:20:41,160 --> 00:20:46,640 I cleared off an area and then I began to feel with my fingers. 283 00:20:49,800 --> 00:20:53,680 I could feel lumpy, bumpy rock-like things. 284 00:20:53,760 --> 00:20:56,640 I immediately knew they weren't any kind of natural 285 00:20:56,720 --> 00:20:59,120 stone but what we call concretions. 286 00:20:59,200 --> 00:21:03,760 So iron objects that were encrusted with rust. 287 00:21:04,440 --> 00:21:06,760 I felt a wooden plank. 288 00:21:06,840 --> 00:21:10,680 At this point my heart is bump bump bump bump bump beating. 289 00:21:10,760 --> 00:21:13,880 Down there alone in the dark I really knew 290 00:21:13,960 --> 00:21:16,600 there's really nothing else that could be. 291 00:21:16,680 --> 00:21:18,680 It just had to be a shipwreck! 292 00:21:23,760 --> 00:21:28,600 SAM: We got Chuck back on the boat and he's like 'we have ourselves a wreck.' 293 00:21:28,680 --> 00:21:30,640 CHUCK: The game is afoot now, we have something! 294 00:21:30,720 --> 00:21:33,920 SAM: I'm like 'that's really good news!' 295 00:21:34,000 --> 00:21:37,680 It was actually the perfect way to end a field season. 296 00:21:39,800 --> 00:21:42,720 CHUCK: There is an old joke in archaeology, it's almost a truism, 297 00:21:42,800 --> 00:21:45,760 that you make your big discovery on the last day. 298 00:21:45,840 --> 00:21:47,960 SAM: We were done for the summer. 299 00:21:48,040 --> 00:21:52,280 NARRATOR: September brings the peak of Florida's Hurricane Season 300 00:21:52,360 --> 00:21:54,680 making it impossible to excavate. 301 00:21:56,080 --> 00:22:03,080 But for archaeologists, unsettled weather can be both a curse and a blessing. 302 00:22:04,160 --> 00:22:07,160 CHUCK: After a period of storm activity, 303 00:22:07,240 --> 00:22:09,760 we had an opportunity to go out and take a look at the site, 304 00:22:09,840 --> 00:22:12,560 so what we would call a monitoring dive. 305 00:22:14,400 --> 00:22:20,280 SAM: It was a beautiful morning, I was on the first dive team 306 00:22:20,360 --> 00:22:24,200 and it's absolutely beautiful conditions, 307 00:22:24,280 --> 00:22:26,360 crystal clear and I look forward 308 00:22:26,440 --> 00:22:31,640 and it's just like this blue gloom but a really rich beautiful blue. 309 00:22:31,720 --> 00:22:36,680 And so we're going along and I'm looking at this blue gloom 310 00:22:36,760 --> 00:22:41,760 and then I see this something looming out of the blue gloom 311 00:22:41,840 --> 00:22:44,920 and I'm like, that's a cannon. 312 00:22:45,440 --> 00:22:55,800 And then I look again and right next to the cannon is a bell and I can't believe it. 313 00:22:57,480 --> 00:22:59,840 It's just not computing, I mean that's a canon 314 00:22:59,920 --> 00:23:04,680 and that's a bell and I'm like 'brrrrr look at this!!' 315 00:23:08,160 --> 00:23:14,880 So we swam around and it was like a whole different wreck, you know? 316 00:23:14,960 --> 00:23:18,600 CHUCK: They came up after a relatively short amount of time 317 00:23:18,680 --> 00:23:21,080 and Sam pulled his regulator out of his mask 318 00:23:21,160 --> 00:23:24,280 and he said, 'there's 10 feet of visibility'. 319 00:23:24,360 --> 00:23:27,080 Well that instantly got everyone's attention on the boat. 320 00:23:27,160 --> 00:23:31,000 We had not yet seen any of the shipwreck. 321 00:23:31,080 --> 00:23:35,080 We had been there without able, you know, just doing archaeology by Braille. 322 00:23:35,160 --> 00:23:40,320 And then the next sentence he says, 'oh and there's five cannon 323 00:23:40,400 --> 00:23:44,920 and the ship's bell just sitting there on the surface'. 324 00:23:45,000 --> 00:23:48,680 So that, you know, our first reaction is like, 'are you joking?' 325 00:23:48,760 --> 00:23:51,240 SAM: And I'm like 'nah, man I'm just kidding.' 326 00:23:51,320 --> 00:23:53,960 CHUCK: And I could see in his eyes, I'm like 'you're not joking.' He's like 327 00:23:54,040 --> 00:23:57,840 'no I'm not joking there's cannons and a bell right down here.' 328 00:23:59,800 --> 00:24:03,600 SAM: Yeah, I think that's probably the best dive I've ever done. 329 00:24:05,800 --> 00:24:09,640 CHUCK: A ship's bell, that's the holy grail for a diving archaeologist. 330 00:24:09,720 --> 00:24:11,960 That could give the name of the ship and the year it was launched. 331 00:24:15,760 --> 00:24:20,200 SAM: So we had this event, we invited all sorts of people, 332 00:24:20,280 --> 00:24:22,680 nice nibbles and, and drinks. 333 00:24:22,760 --> 00:24:28,480 And our conservator was starting to clean off the bell 334 00:24:28,560 --> 00:24:32,040 and the idea was we're gonna have this wonderful event 335 00:24:32,120 --> 00:24:35,360 where we reveal the name of the wreck. 336 00:24:35,440 --> 00:24:41,000 And she cleaned the bell and there was no name at all, it was a completely blank bell. 337 00:24:42,080 --> 00:24:44,840 CHUCK: The ship's secrets weren't just going to fall into our laps. 338 00:24:44,920 --> 00:24:48,440 We needed to get more information. 339 00:24:48,520 --> 00:24:51,440 Archaeology is just like a crime scene investigation. 340 00:24:51,520 --> 00:24:55,960 We are trying to reconstruct a scenario, an event, from the past. 341 00:24:56,040 --> 00:24:59,960 In our case it's a really cold case, it goes back hundreds of years. 342 00:25:03,760 --> 00:25:08,120 SAM: One of the things that was obvious from the beginning, 343 00:25:08,200 --> 00:25:11,000 the arrangement of the material and the guns in particular 344 00:25:11,080 --> 00:25:13,520 on the seabed was not what I would call normal. 345 00:25:15,720 --> 00:25:17,880 CHUCK: Cannons, if they're in place as weapons, 346 00:25:17,960 --> 00:25:21,400 you might expect to find cannons kind of evenly placed 347 00:25:21,480 --> 00:25:23,720 pointing away from the shipwreck. 348 00:25:25,400 --> 00:25:29,040 The bell is usually at the belfry, that's at a certain part of the ship. 349 00:25:29,120 --> 00:25:31,960 Maybe cookware, things like that, where the galley 350 00:25:32,040 --> 00:25:33,720 or the kitchen of the ship would be. 351 00:25:33,800 --> 00:25:36,720 We had definitely a different scenario. 352 00:25:37,320 --> 00:25:40,280 SAM: It was clear that something was going on. 353 00:25:40,360 --> 00:25:44,720 One of the objects that I noticed was this long strange 354 00:25:44,800 --> 00:25:50,160 cylindrical object and it was all lead, completely and utterly lead. 355 00:25:50,240 --> 00:25:54,640 CHUCK: I had an attached length of plumbing or piping to it. 356 00:25:54,720 --> 00:25:56,560 This was a deck pump. 357 00:25:56,640 --> 00:25:59,920 When you operated the pump handle you were pumping up nice, 358 00:26:00,000 --> 00:26:06,040 clean seawater to swab the decks, to fight a fire so a deck pump 359 00:26:06,120 --> 00:26:10,600 was a way to get seawater on board the vessel for a variety of purposes. 360 00:26:13,200 --> 00:26:20,040 SAM: We brought this up and we had it in the lab and one of the team, very keen eyes, 361 00:26:20,120 --> 00:26:25,880 noticed that there were hack marks on the lead. 362 00:26:25,960 --> 00:26:32,160 CHUCK: We had more than one segment of plumbing that had been cut clean through. 363 00:26:32,240 --> 00:26:34,280 And then we realized what had happened. 364 00:26:36,440 --> 00:26:41,280 SAM: Someone had taken an axe and hacked it, hacked it out of the ship. 365 00:26:41,360 --> 00:26:43,200 CHUCK: This is an expensive piece of equipment. 366 00:26:43,280 --> 00:26:46,880 Why would you purposely disable it? 367 00:26:48,520 --> 00:26:53,920 The answer that makes sense to us is that this was a frenzied attempt, 368 00:26:54,000 --> 00:26:59,400 a desperate attempt to remove this pump from the hull of the ship 369 00:26:59,480 --> 00:27:01,600 where it would have been mounted. 370 00:27:01,680 --> 00:27:06,760 It seems pretty clear to us that that is an attempt to lighten the ship. 371 00:27:08,800 --> 00:27:11,680 And that makes sense if a ship has run aground 372 00:27:11,760 --> 00:27:17,040 and you have to try to save the ship by jettisoning all the heavy cargo. 373 00:27:17,120 --> 00:27:22,080 These artefacts are telling the story of the desperate attempt by the captain, 374 00:27:22,160 --> 00:27:26,080 the crew and the passengers to try to save the ship. 375 00:27:26,160 --> 00:27:30,160 If you can just get the ship to float up off the sandbar, 376 00:27:30,240 --> 00:27:33,920 then you can get it ashore and you've saved the vessel. 377 00:27:34,960 --> 00:27:38,360 We had found that bell, the cannons, the deck pump, 378 00:27:38,440 --> 00:27:41,600 but we only ever found that one wooden plank. 379 00:27:41,680 --> 00:27:45,000 There was no hull, no remains of the ship structure itself. 380 00:27:45,080 --> 00:27:48,360 Was it possible that the ship had gotten away? 381 00:27:54,120 --> 00:27:57,360 NARRATOR: Hoping to solve the mystery of the ship's fate, 382 00:27:57,440 --> 00:27:59,800 the investigation takes a closer look 383 00:27:59,880 --> 00:28:04,280 at the metal artefacts found off the coast of St. Augustine. 384 00:28:05,560 --> 00:28:07,920 CHUCK: When you have an iron object that is immersed 385 00:28:08,000 --> 00:28:13,680 in sea water for centuries it undergoes a number of chemical changes. 386 00:28:13,760 --> 00:28:18,000 That rust turns into an encrustation, it turns into a coating. 387 00:28:18,080 --> 00:28:21,640 It's thick and lumpy and bumpy and shells get stuck to it 388 00:28:21,720 --> 00:28:23,440 and often you'll have more than one 389 00:28:23,520 --> 00:28:26,240 artefact near each other and they all just rust together 390 00:28:26,320 --> 00:28:30,040 into what may just be an amorphous blob. 391 00:28:30,120 --> 00:28:32,680 SAM: Once we started examining the concretions, 392 00:28:32,760 --> 00:28:35,280 X-raying the concretions and finding 393 00:28:35,360 --> 00:28:37,360 the smaller objects within the concretions, 394 00:28:37,440 --> 00:28:43,640 that is when the full story of what actually happened came out. 395 00:28:43,720 --> 00:28:48,680 What X-rays can do if you really amp up the power, 396 00:28:48,760 --> 00:28:51,920 it can actually see through the calcium carbonate. 397 00:28:52,000 --> 00:28:56,600 CHUCK: We found a lot of small items, a lot of personal items, a lot of cookware, 398 00:28:56,680 --> 00:29:00,520 a lot of plates, a lot of spoons, shoe buckles, 399 00:29:00,600 --> 00:29:02,960 coins, so we really are getting a picture 400 00:29:03,040 --> 00:29:05,200 that a lot of the things that people were bringing 401 00:29:05,280 --> 00:29:08,960 with them ended up on the sea floor. 402 00:29:09,680 --> 00:29:11,640 SAM: When we found the Queen Anne's pistol, 403 00:29:11,720 --> 00:29:16,240 expensive small items that you absolutely would not throw overboard 404 00:29:16,320 --> 00:29:18,800 under any circumstance, that told us the story 405 00:29:18,880 --> 00:29:22,640 that they were so stuck on the bar they never got off. 406 00:29:22,720 --> 00:29:24,720 CHUCK: It seems pretty conclusive that this ship 407 00:29:24,800 --> 00:29:29,040 could not be saved and we have the burial ground of this vessel 408 00:29:29,120 --> 00:29:31,600 and all of the items that were on board. 409 00:29:33,640 --> 00:29:39,560 SAM: What archaeologists really want to do is what we want to tell the story, 410 00:29:39,640 --> 00:29:43,680 where was it from? When did it wreck? Why did it wreck? 411 00:29:43,760 --> 00:29:48,800 So our story evolved from very small clues. 412 00:29:51,000 --> 00:29:53,760 CHUCK: There was a lot of stuff. 413 00:29:53,840 --> 00:29:58,800 We found a base of a wine glass that we knew dated to some time in the 1700s. 414 00:29:58,880 --> 00:30:01,280 We found a pewter spoon, the same thing. 415 00:30:01,360 --> 00:30:04,160 Everything we found it seemed to push the date 416 00:30:04,240 --> 00:30:08,440 to the second half and even the later 1700s. 417 00:30:08,520 --> 00:30:13,240 So as we narrow that time range down, there was one event in particular, 418 00:30:13,320 --> 00:30:16,640 that looked promising. 419 00:30:16,720 --> 00:30:22,760 NARRATOR: In December 1782, the American Revolution is entering its final phase. 420 00:30:22,840 --> 00:30:27,440 The 13 colonies are a dangerous place for those still loyal to the crown. 421 00:30:28,800 --> 00:30:35,240 So in dozens of ships they flee to Florida, which remains loyal to King George III. 422 00:30:35,320 --> 00:30:41,120 They hope to find refuge in St Augustine but not all of them reach safety. 423 00:30:42,680 --> 00:30:45,280 CHUCK: This could be a candidate, one of these ships. 424 00:30:45,360 --> 00:30:48,640 Everything seemed to be pointing into this direction. 425 00:30:48,720 --> 00:30:52,280 We had debates about what artefacts we might actually find, 426 00:30:52,360 --> 00:30:56,000 that would really be definitive. And then it happened. 427 00:30:56,080 --> 00:30:57,200 We found the artefact. 428 00:30:59,480 --> 00:31:02,760 It was a single button. 429 00:31:02,840 --> 00:31:08,280 A small pewter button, it had lettering on it that we could see after cleaning, 430 00:31:08,360 --> 00:31:14,720 the letters RP with a crown above and that told us immediately 431 00:31:14,800 --> 00:31:16,200 that we had Loyalists on board. 432 00:31:16,280 --> 00:31:19,640 Because that RP button stands for Royal Provincials, 433 00:31:19,720 --> 00:31:21,360 that's a unit in the British Army 434 00:31:21,440 --> 00:31:24,600 it's made up of Americans who were loyal to King George. 435 00:31:27,120 --> 00:31:31,040 It is poignant. 436 00:31:31,120 --> 00:31:33,720 To read some of the letters, to read some of the accounts 437 00:31:33,800 --> 00:31:35,680 that were written back and forth 438 00:31:35,760 --> 00:31:40,800 about this particular event that's a really important part of the process. 439 00:31:41,760 --> 00:31:45,760 Elizabeth Lichtenstein Johnston was a Georgia Loyalist. 440 00:31:45,840 --> 00:31:49,680 She had evacuated and had ended up in St Augustine 441 00:31:49,760 --> 00:31:53,440 and so she was an eyewitness to these shipwrecks. 442 00:31:55,840 --> 00:32:01,720 16 vessels, small vessels she says, have been lost on or about the bar. 443 00:32:01,800 --> 00:32:05,200 So that means they have run aground on the sandbar. 444 00:32:06,280 --> 00:32:08,960 These ships were carrying people but they're also their hopes 445 00:32:09,040 --> 00:32:11,880 and dreams for making a new life in this 446 00:32:11,960 --> 00:32:17,240 really difficult time in their lives and they're just strewn on the sandbar. 447 00:32:21,640 --> 00:32:23,760 We don't know for sure what caused these ships to wreck, 448 00:32:23,840 --> 00:32:25,720 but we know there was a hurricane 449 00:32:25,800 --> 00:32:30,120 just two months before this fleet came to grief. 450 00:32:30,200 --> 00:32:33,400 We don't know exactly what its impact was on Florida 451 00:32:33,480 --> 00:32:38,520 but a hurricane represents a massive force of mother nature. 452 00:32:41,240 --> 00:32:43,680 SAM: Every time a hurricane came through the channel 453 00:32:43,760 --> 00:32:47,640 would change, the sands would shift. 454 00:32:47,720 --> 00:32:49,680 CHUCK: That shifting sandbar meant these ships 455 00:32:49,760 --> 00:32:53,400 had no idea where the safe channel was. 456 00:32:53,480 --> 00:32:59,760 SAM: So, it is possible that hurricanes effectively caused these wrecks. 457 00:32:59,840 --> 00:33:01,720 CHUCK: In a very real sense it is because 458 00:33:01,800 --> 00:33:04,640 of hurricanes that this inlet was so dangerous. 459 00:33:07,200 --> 00:33:11,600 These storms throughout history have changed history. 460 00:33:11,680 --> 00:33:13,480 And what a hurricane does below the water 461 00:33:13,560 --> 00:33:16,760 can be as dramatic as what it does on shore. 462 00:33:21,800 --> 00:33:25,480 NARRATOR: Millions of people on or near the American coast 463 00:33:25,560 --> 00:33:28,240 live under the threat of hurricanes. 464 00:33:28,320 --> 00:33:31,720 But of all the dangers these monster storms bring, 465 00:33:31,800 --> 00:33:35,000 the greatest comes from Storm Surges. 466 00:33:35,080 --> 00:33:39,600 The huge volume of ocean water pushed ashore by storm. 467 00:33:40,280 --> 00:33:44,720 The surges can cause devastating even deadly flooding. 468 00:33:44,800 --> 00:33:47,440 OBAMA: Obviously all of us across the country are concerned 469 00:33:47,520 --> 00:33:51,080 about the potential impact of Hurricane Sandy. 470 00:33:51,160 --> 00:33:54,240 COMMUNICATOR: We are expecting a very large storm 471 00:33:54,320 --> 00:33:57,800 with impacts over a very large area. 472 00:33:57,880 --> 00:34:01,360 ART: When we saw that Sandy was coming our way, we dropped everything. 473 00:34:01,440 --> 00:34:03,800 I remember calling up the director of marine operations 474 00:34:03,880 --> 00:34:06,680 and saying "I need to get on that boat". 475 00:34:08,280 --> 00:34:13,560 I'm a coastal geologist and my primary mission is to try and anticipate 476 00:34:13,640 --> 00:34:16,680 how and where Storm Surge will hit populated areas. 477 00:34:18,280 --> 00:34:20,640 People think the sky is where to look for clues 478 00:34:20,720 --> 00:34:23,280 to the damage a hurricane is going to do, 479 00:34:23,360 --> 00:34:25,800 but for me, the answers are underwater. 480 00:34:27,240 --> 00:34:31,240 ART: We really need to understand what's going on in the water and at the seabed, 481 00:34:31,320 --> 00:34:35,040 if we're going to try to understand how storm surge plays out. 482 00:34:35,120 --> 00:34:36,600 MAN: Yeah looks good. 483 00:34:36,680 --> 00:34:40,000 ART: When they tell you to evacuate, you need to evacuate. 484 00:34:40,080 --> 00:34:45,640 While everyone else was preparing to leave, we were heading 16 miles offshore 485 00:34:45,720 --> 00:34:47,920 towards the approaching storm. 486 00:34:48,000 --> 00:34:50,800 We needed to seize that moment, to try to capture 487 00:34:50,880 --> 00:34:54,440 a picture of the seabed right before the storm 488 00:34:54,520 --> 00:34:57,640 and see how that storm would evolve and change. 489 00:34:57,720 --> 00:35:01,720 That would give us an incredible picture of how the seafloor, 490 00:35:01,800 --> 00:35:04,000 the ocean and the sky interact, 491 00:35:04,080 --> 00:35:07,320 something that has very rarely, if ever, been done. 492 00:35:07,400 --> 00:35:10,160 And the best place to do it was Redbird Reef. 493 00:35:12,400 --> 00:35:16,120 NARRATOR: This is no ordinary patch on the sea floor. 494 00:35:16,200 --> 00:35:19,680 It's the strangest of artificial reefs. 495 00:35:22,840 --> 00:35:26,440 ART: There are hundreds upon hundreds of New York City subway cars 496 00:35:26,520 --> 00:35:28,480 on the sea floor. 497 00:35:28,560 --> 00:35:31,600 Two and a half meters, we're closing in on it. 498 00:35:31,680 --> 00:35:34,040 For me the Redbird Reef site has become 499 00:35:34,120 --> 00:35:37,560 a great natural laboratory for us to better understand 500 00:35:37,640 --> 00:35:40,560 hurricanes and their impacts on the coastline. 501 00:35:42,080 --> 00:35:45,720 CARTER: I need a little bit more, I'm getting tugged. 502 00:35:45,800 --> 00:35:48,720 ART: That's it right there, yep, coming right up on the corner. 503 00:35:51,720 --> 00:35:54,680 It really makes for an amazing seascape. 504 00:35:54,760 --> 00:36:00,720 Rows upon rows of subway cars in different orientations and arrangements. 505 00:36:00,800 --> 00:36:03,720 I often chuckle to my archaeologist friends and say, 506 00:36:03,800 --> 00:36:07,080 'how would you interpret this hundreds of years from now? 507 00:36:07,160 --> 00:36:11,320 What kind of bizarre sort of battle took place here?' 508 00:36:23,600 --> 00:36:27,680 CARTER: We've been studying Redbird Reef for over a decade now. 509 00:36:27,760 --> 00:36:31,200 ART: The missing element was we need a storm. 510 00:36:31,280 --> 00:36:33,720 What Sandy meant for us is it gave us 511 00:36:33,800 --> 00:36:38,680 for the first time an opportunity to see how a single storm event 512 00:36:38,760 --> 00:36:40,760 could change the seabed. 513 00:36:40,840 --> 00:36:43,680 Let's see how she's looking here good! 514 00:36:43,760 --> 00:36:45,720 I wanted four days out at that site. 515 00:36:45,800 --> 00:36:48,880 We could squeeze one day to get everything done. 516 00:36:48,960 --> 00:36:52,080 That meant we needed to map the site, we needed to deploy our instruments, 517 00:36:52,160 --> 00:36:56,160 and then we needed to get the heck out of there before Sandy came through. 518 00:36:58,600 --> 00:37:00,200 COMMUNICATOR: We're looking at tropical storm force winds 519 00:37:00,280 --> 00:37:02,720 along the coast, beginning tonight. 520 00:37:06,480 --> 00:37:08,480 ART: One of the last things we did was deploy 521 00:37:08,560 --> 00:37:10,840 an instrument frame to the sea floor, 522 00:37:10,920 --> 00:37:13,840 that was going to sit out there during the storm 523 00:37:13,920 --> 00:37:16,560 and measure the waves and currents. 524 00:37:17,080 --> 00:37:19,640 As we were leaving, I had this thought, 525 00:37:19,720 --> 00:37:22,080 'will we ever see that instrument package again?' 526 00:37:28,960 --> 00:37:31,080 CARTER: The waves that were created from this storm 527 00:37:31,160 --> 00:37:35,320 covered over an area of 1.4 million square miles 528 00:37:35,400 --> 00:37:39,320 so this was a massive storm for the Atlantic basin. 529 00:37:40,800 --> 00:37:44,760 It's just incomprehensible to think about the billions and billions of dollars 530 00:37:44,840 --> 00:37:47,360 of damage that was wrought by this storm. 531 00:37:57,800 --> 00:38:01,840 Once Sandy had passed we went back out to the site to recover our instrumentation. 532 00:38:03,200 --> 00:38:07,280 We just didn't know what to expect when we got there and whether or not we'd have any 533 00:38:07,360 --> 00:38:09,200 equipment left to recover. 534 00:38:12,800 --> 00:38:16,680 ART: We start hauling up the lines and as part of the rope was coming up, 535 00:38:16,760 --> 00:38:21,840 I saw this tangle of metal wrapped in the line and my heart sank. 536 00:38:24,680 --> 00:38:26,600 CARTER: I turned and looked at Art 537 00:38:26,680 --> 00:38:30,600 and he just this exasperated sigh of 'oh my goodness there's nothing left.' 538 00:38:35,520 --> 00:38:38,600 It turns out that that was a piece of one of the subway cars 539 00:38:38,680 --> 00:38:41,920 possibly a door frame or a window frame. 540 00:38:42,000 --> 00:38:47,440 ART: The storm had torn it free and tangled it up amongst our line as the waves 541 00:38:47,520 --> 00:38:50,680 and the currents were sloshing back and forth. 542 00:38:50,760 --> 00:38:53,400 So, we kept hauling up, pulling up and then suddenly, 543 00:38:53,480 --> 00:38:56,760 through the water I see the frame of our instrument package 544 00:38:56,840 --> 00:39:03,600 and when it burst through the surface, it was just a real moment of elation 545 00:39:03,680 --> 00:39:06,840 and my final thought was, I hope we hit record! 546 00:39:10,680 --> 00:39:12,760 As we start looking back through the records, 547 00:39:12,840 --> 00:39:17,040 we're our eyes are just going bug-eyed. 548 00:39:17,120 --> 00:39:19,640 Right there at the Redbird Reef site we measured 549 00:39:19,720 --> 00:39:23,440 two and a half story-high waves with a period of 16 seconds. 550 00:39:23,520 --> 00:39:26,760 Every 16 seconds another one of these monster, 551 00:39:26,840 --> 00:39:31,240 mammoth waves is coming through generating three knot currents 552 00:39:31,320 --> 00:39:34,680 at the sea floor, in 100 feet of water. 553 00:39:34,760 --> 00:39:40,320 CARTER: The currents that were being generated by that storm was staggering to us. 554 00:39:40,400 --> 00:39:44,280 ART: We knew in that moment that our gambit had paid off. 555 00:39:44,360 --> 00:39:46,640 But to truly gauge the power of those currents, 556 00:39:46,720 --> 00:39:51,440 we needed to measure the storm's impact right at the seabed. 557 00:39:51,520 --> 00:39:55,040 That meant we needed to map the site to see how much damage was done. 558 00:40:02,080 --> 00:40:08,560 One of the most valuable assets that we have in our research arsenal 559 00:40:08,640 --> 00:40:13,000 is our small un-personned submarine, and it's fully autonomous meaning 560 00:40:13,080 --> 00:40:15,600 we have to plan its missions and we hit 561 00:40:15,680 --> 00:40:19,400 go and she dives below the surface off on its own 562 00:40:19,480 --> 00:40:23,120 to navigate through this mysterious subsea world. 563 00:40:23,200 --> 00:40:24,960 We're painting a three-dimensional picture 564 00:40:25,040 --> 00:40:27,200 very high resolution and precision, 565 00:40:27,280 --> 00:40:32,680 so we can get every little bump and divot of the seabed. 566 00:40:36,000 --> 00:40:39,600 ART: We started going through, piece by piece in every portion 567 00:40:39,680 --> 00:40:44,400 of the Redbird Reef site and looking at the changes before and after Sandy. 568 00:40:44,480 --> 00:40:46,600 Yeah look at the scour around some of these subway cars. 569 00:40:46,680 --> 00:40:51,680 We could see whole areas where the surface sand was pulled and eroded away. 570 00:40:53,800 --> 00:40:58,800 It became very obvious to us that epic things had happened on this, the seabed, 571 00:40:58,880 --> 00:41:02,480 because there were suddenly areas where subway cars 572 00:41:02,560 --> 00:41:07,720 were missing or they had been flipped on their sides or broken apart. 573 00:41:07,800 --> 00:41:10,640 There were subway cars that were just rotated, 574 00:41:10,720 --> 00:41:16,040 shifted, moved or completely obliterated. 575 00:41:16,120 --> 00:41:20,120 CARTER: We're talking about subway cars that weigh on the order of 75,000 pounds, 576 00:41:20,200 --> 00:41:23,600 just eviscerated by the currents that were occurring down there 577 00:41:23,680 --> 00:41:25,600 which really shows you the power 578 00:41:25,680 --> 00:41:29,280 and the amount of energy that's being imparted on the sea floor. 579 00:41:35,920 --> 00:41:40,680 ART: The largest and perhaps most impressive structure in the artificial 580 00:41:40,760 --> 00:41:46,360 reef system is the former ex-USS Arthur Radford. 581 00:41:46,440 --> 00:41:49,840 It was a Navy destroyer and it's the largest artificial reef object 582 00:41:49,920 --> 00:41:55,440 north of Florida anywhere on the east coast, more than 500 feet long. 583 00:41:55,520 --> 00:42:00,720 But when we went out and then surveyed over the Radford that's when it just clearly 584 00:42:00,800 --> 00:42:04,760 showed that this storm took things to a whole 'nother level. 585 00:42:06,800 --> 00:42:12,680 It's in deeper water depths and it's a much larger structure. 586 00:42:12,760 --> 00:42:18,760 We knew from before the storm that the Radford was in three parts. 587 00:42:18,840 --> 00:42:21,520 When we got out there and mapped it after Sandy 588 00:42:21,600 --> 00:42:25,720 it was just jaw-dropping to realize that the entire center section 589 00:42:25,800 --> 00:42:28,920 was picked up and rotated more than 30 degrees. 590 00:42:29,760 --> 00:42:32,600 We're talking about an enormous Navy destroyer that's moved 591 00:42:32,680 --> 00:42:37,040 more than 200 feet in 120 feet of water. 592 00:42:37,120 --> 00:42:39,720 It really shocked me, it really surprised me to see 593 00:42:39,800 --> 00:42:43,920 how much change there was to the seabed. 594 00:42:44,000 --> 00:42:48,120 I'd never seen it over that sort of scale and magnitude. 595 00:42:49,680 --> 00:42:53,720 We now know how much of an effect a storm has on the sea floor. 596 00:42:53,800 --> 00:42:57,240 But that interaction goes both ways. 597 00:42:57,320 --> 00:43:00,320 Water movement is affected by the shape of the sea floor 598 00:43:00,400 --> 00:43:02,600 as the storm moves towards land 599 00:43:02,680 --> 00:43:06,280 and those initial conditions are what determine how storm surge behaves, 600 00:43:06,360 --> 00:43:10,680 and ultimately, where and how it hits. That's crucial information. 601 00:43:14,880 --> 00:43:18,600 You know in hindsight, we could have lost everything. 602 00:43:18,680 --> 00:43:21,320 Hundreds of thousands of dollars' worth of equipment. 603 00:43:21,400 --> 00:43:24,760 But if we didn't risk that loss, we wouldn't have the gold mine of information 604 00:43:24,840 --> 00:43:27,800 about how the sea floor changes during a storm. 605 00:43:27,880 --> 00:43:32,360 We have the technology now to monitor these changes as each storm passes. 606 00:43:34,800 --> 00:43:38,280 We can feed that into our storm surge models, 607 00:43:38,360 --> 00:43:42,680 and predict where and how the next storm surge is going to occur. 608 00:43:43,400 --> 00:43:46,520 There are gonna be more storms, and there are going to be more intense storms. 609 00:43:46,600 --> 00:43:52,760 And we need every bit of information we can to help combat storm surge losses. 610 00:43:52,840 --> 00:43:55,520 Here for the first time in the history of hurricanes, 611 00:43:55,600 --> 00:43:57,240 we might finally have a weapon that helps 612 00:43:57,320 --> 00:44:00,600 us fight the worst of what those hurricanes are throwing at us. 613 00:44:07,720 --> 00:44:08,720 Captioned by SubTitlePro LLC