1 00:00:09,510 --> 00:00:14,179 NARRATOR: Sally is perhaps the most unwelcome guest among the current Atlantic storm. 2 00:00:14,215 --> 00:00:16,982 Hurricane Paulette is over Bermuda, and Renee, 3 00:00:17,018 --> 00:00:20,686 Teddy and now Vicky, are spinning over open waters. 4 00:00:23,024 --> 00:00:28,927 Primal, destructive, growing more and more dangerous every year. 5 00:00:32,466 --> 00:00:36,702 CHUCK: A hurricane represents a massive force of mother nature. 6 00:00:36,737 --> 00:00:38,737 You sure need to respect them. 7 00:00:39,940 --> 00:00:45,844 NARRATOR: Sally became a hurricane this morning packing 90 mile an hour wind. 8 00:00:45,880 --> 00:00:52,117 Off the coast of Florida, an unexpected pile of rocks and a ship's bell, 9 00:00:52,153 --> 00:00:57,356 what do they reveal about how monster storms shape America's past? 10 00:00:59,093 --> 00:01:01,160 GREG: It's a hurricane victim. 11 00:01:01,195 --> 00:01:05,164 And hurricanes are some of the most violent forces that happen on planet Earth. 12 00:01:05,199 --> 00:01:10,636 JOHN: Had this hurricane not happened, America might have looked very, very different. 13 00:01:11,505 --> 00:01:14,640 NARRATOR: And how does a sunken mass of subway cars 14 00:01:14,675 --> 00:01:19,144 give hope to resisting future hurricanes? 15 00:01:19,180 --> 00:01:22,314 ART: Epic things had happened on the seabed. 16 00:01:22,349 --> 00:01:27,753 Subway cars were rotated, shifted, moved or completely obliterated. 17 00:01:44,638 --> 00:01:48,107 DELLA: Dealing with hurricanes is very emotionally taxing 18 00:01:48,142 --> 00:01:51,343 but it's part of the price of living on this area of the Gulf Coast. 19 00:01:57,551 --> 00:01:59,918 NARRATOR: Every year hurricanes batter 20 00:01:59,954 --> 00:02:03,021 America's eastern and southern coastlines. 21 00:02:03,691 --> 00:02:06,325 They've been a menace for centuries. 22 00:02:06,360 --> 00:02:12,931 They destroy, disrupt and some even change the course of history. 23 00:02:19,106 --> 00:02:21,740 DELLA: There's a lot of, of shipwrecks in our bay 24 00:02:21,759 --> 00:02:24,510 but we always hoped to find the earliest ones. 25 00:02:27,515 --> 00:02:32,885 The Pensacola Shipwreck Survey was the brainchild of Dr Roger Smith. 26 00:02:32,920 --> 00:02:37,656 And Roger was a legendary archaeologist especially here in the Florida. 27 00:02:37,691 --> 00:02:40,759 He knew that Pensacola Bay had such high potential 28 00:02:40,794 --> 00:02:42,995 because very early in the 16th century 29 00:02:43,030 --> 00:02:47,166 there were Spanish um explorers uh poking around uh this area, 30 00:02:47,201 --> 00:02:49,535 looking for bays and harbours. 31 00:02:49,570 --> 00:02:52,337 Myself and, and Jim Spireck and Chuck Hewson, 32 00:02:52,373 --> 00:02:55,340 we always hoped that we would find some of the evidence 33 00:02:55,376 --> 00:02:57,276 of these early Spanish explorers. 34 00:03:00,781 --> 00:03:03,749 Sometimes we would dive on these sites that the fishermen 35 00:03:03,784 --> 00:03:07,920 or the shrimpers would show us and it was junk. 36 00:03:07,955 --> 00:03:13,325 Car bodies or piles of tyres or one time we found a pizza oven! 37 00:03:13,360 --> 00:03:15,627 But there was always that, that hope that the next dive 38 00:03:15,663 --> 00:03:19,064 was going to turn up something amazing. 39 00:03:19,099 --> 00:03:21,133 So, we kept on at it. 40 00:03:22,570 --> 00:03:25,304 I never dreamed, you know that we would be finding something 41 00:03:25,339 --> 00:03:28,373 so important historically and archaeologically. 42 00:03:32,613 --> 00:03:35,514 In the fall of 1992, we had been surveying 43 00:03:35,549 --> 00:03:38,283 at this particular place and had found some targets 44 00:03:38,319 --> 00:03:44,623 and the first dive um I believe was a, a piece of shrimp boat gear. 45 00:03:44,658 --> 00:03:48,427 The second dive I think was a car body, a Volkswagen Beetle or something. 46 00:03:48,462 --> 00:03:51,230 And so, the third dive it was mine and Chuck's turn 47 00:03:51,265 --> 00:03:53,432 and so we geared up and jumped in the water 48 00:03:53,450 --> 00:03:57,069 and Jim was on the boat for safety. 49 00:03:57,104 --> 00:04:02,908 The water's very dark there, you could not see even 12 feet. 50 00:04:02,943 --> 00:04:09,414 I was on my knees holding the anchor at the, at the bottom of the buoy line. 51 00:04:09,450 --> 00:04:14,453 Chuck swam out and did a circle, didn't find anything and out another few feet. 52 00:04:15,589 --> 00:04:18,056 By that time was out of my range of vision. 53 00:04:18,976 --> 00:04:21,260 A few minutes later he comes swimming back up the line 54 00:04:21,295 --> 00:04:24,062 and he looks at me and goes like this. 55 00:04:24,098 --> 00:04:27,165 So his eyes were real big, I knew he had found something interesting, 56 00:04:27,201 --> 00:04:32,904 so I followed him back down the line to this big pile of rocks. 57 00:04:34,808 --> 00:04:39,011 Here in Pensacola we don't have naturally occurring rocks like that. 58 00:04:43,584 --> 00:04:47,085 The top layer was oyster, oyster shell. 59 00:04:47,121 --> 00:04:50,355 Generations and generations of oysters had lived 60 00:04:50,391 --> 00:04:53,392 and died on this, this pile of rocks. 61 00:04:54,628 --> 00:04:58,163 And he started moving this top layer of rocks, 62 00:04:58,198 --> 00:05:00,198 the rock went deeper and deeper and deeper 63 00:05:00,234 --> 00:05:06,271 of these varying sizes of these kind of roundish river cobbles. 64 00:05:07,941 --> 00:05:09,274 Now we got excited. 65 00:05:09,310 --> 00:05:11,543 Because these kinds of rocks were used as ballast 66 00:05:11,578 --> 00:05:15,547 in these old vessels to keep them stable as they were sailing across the ocean. 67 00:05:17,318 --> 00:05:21,987 Once we finally got down to the very bottom layer of rock underneath that 68 00:05:22,022 --> 00:05:25,057 was this Beautiful carved wood. 69 00:05:25,092 --> 00:05:28,093 And that's when we knew for sure, we had a shipwreck. 70 00:05:30,264 --> 00:05:31,997 I remember getting on the phone with Roger 71 00:05:32,032 --> 00:05:35,934 and saying "Roger you need to come and see this." 72 00:05:35,969 --> 00:05:38,103 We had no idea the age of it but it looked like it 73 00:05:38,122 --> 00:05:41,773 was a historic shipwreck so we shifted our focus 74 00:05:41,792 --> 00:05:45,977 from survey of Pensacola Bay to focusing on this site 75 00:05:46,013 --> 00:05:49,715 that had the potential to be something very old and very important. 76 00:05:52,853 --> 00:05:55,454 One of the local businesses in Pensacola donated 77 00:05:55,489 --> 00:06:00,125 a small wooden barge to us that we could anchor up on site 78 00:06:00,160 --> 00:06:03,862 and leave there and use as our excavation platform. 79 00:06:03,897 --> 00:06:07,666 But it was leaky and occasionally it would sink. 80 00:06:07,701 --> 00:06:11,370 So not a whole lot of work was going to happen till we could move the barge. 81 00:06:16,543 --> 00:06:18,543 SOT: So Jim, what's the plan for today? 82 00:06:26,820 --> 00:06:28,720 DELLA: We had found wooden structure 83 00:06:28,756 --> 00:06:33,225 and it wasn't just an isolated like little piece or a splinter of wood, 84 00:06:33,260 --> 00:06:37,279 this was major internal structural framing. 85 00:06:38,232 --> 00:06:41,333 We had no idea really the true age of it at that point. 86 00:06:41,368 --> 00:06:44,503 And so that's when we decided, well let's move over a little way. 87 00:06:44,538 --> 00:06:47,105 And we happened to come down right where that heel 88 00:06:47,141 --> 00:06:51,810 of the mast is attached very securely into the hull of the ship. 89 00:06:53,947 --> 00:06:57,516 Finding this wooden structure was huge for us 90 00:06:57,551 --> 00:07:02,220 and that mast step was just classic 16th century. 91 00:07:04,141 --> 00:07:09,961 NARRATOR: The 1500s is when European exploration in North America really kicked off 92 00:07:09,980 --> 00:07:14,733 before the Pilgrims or the English settlements at Jamestown. 93 00:07:14,752 --> 00:07:20,138 This ship dates to that era. But where did it come from? 94 00:07:20,174 --> 00:07:22,240 And who was on-board? 95 00:07:22,276 --> 00:07:24,576 DELLA: We started using the induction dredge which is like 96 00:07:24,611 --> 00:07:26,945 an underwater vacuum cleaner to go down in layers 97 00:07:26,980 --> 00:07:30,582 and very carefully recover whatever artefacts we found. 98 00:07:31,785 --> 00:07:35,153 We began to see really amazingly preserved artefacts. 99 00:07:37,825 --> 00:07:43,929 Things like pieces of rope, hemp line even leather shoe soles. 100 00:07:48,502 --> 00:07:52,003 JOHN: I had a phone call where I was invited to come to Florida 101 00:07:52,039 --> 00:07:57,542 to serve as the conservator for this ship and to take care of the artefacts. 102 00:08:00,080 --> 00:08:02,013 We were trying to find as many clues as we could 103 00:08:02,049 --> 00:08:04,149 to help identify the origin of the vessel. 104 00:08:06,386 --> 00:08:11,756 Each day, you know, something different would show up in remarkable condition. 105 00:08:12,559 --> 00:08:15,660 We found some real plain unglazed pottery, 106 00:08:15,696 --> 00:08:20,465 it was just coarse earthenware we actually call them olive jars. 107 00:08:21,068 --> 00:08:22,801 Well when we found olive jars it was one of the 108 00:08:22,836 --> 00:08:27,639 first big clues that we're working with a Spanish shipwreck 109 00:08:27,674 --> 00:08:30,275 because these big jars we know 110 00:08:30,310 --> 00:08:32,377 the Spanish carried olives in them. 111 00:08:36,216 --> 00:08:39,084 NARRATOR: Spain establishes its first permanent settlement 112 00:08:39,119 --> 00:08:43,588 in Florida at St. Augustine in 1565. 113 00:08:43,624 --> 00:08:50,262 But the artefacts coming from the ship are pointing to an earlier date: the 1550s. 114 00:08:50,297 --> 00:08:53,298 Could these be the remains of one of the earliest 115 00:08:53,333 --> 00:08:57,536 European colonizers on the American mainland? 116 00:09:00,741 --> 00:09:03,708 DELLA: On one side of the ship, as we were excavating, 117 00:09:03,744 --> 00:09:05,377 we ran out of hull structure. 118 00:09:05,412 --> 00:09:09,281 There was nothing else there and the framing 119 00:09:09,316 --> 00:09:12,851 and the ship's timbers were, were shattered. 120 00:09:14,187 --> 00:09:16,605 JOHN: We found hundreds and hundreds of the small 121 00:09:16,657 --> 00:09:18,990 spikes that were used to attach 122 00:09:19,026 --> 00:09:24,062 the planking to the hull frame and so they were scattered on the wreck site 123 00:09:24,097 --> 00:09:27,198 and almost all of them are bent. 124 00:09:27,234 --> 00:09:29,701 Many of them are even broken. 125 00:09:31,305 --> 00:09:33,605 It was obvious that the ship pounded up and down 126 00:09:33,640 --> 00:09:37,342 and eventually it split open and broke apart like that. 127 00:09:42,015 --> 00:09:44,282 DELLA: Whatever had caused this ship to wreck 128 00:09:44,318 --> 00:09:47,619 was a violent, catastrophic occurrence. 129 00:09:47,654 --> 00:09:49,588 NARRATOR: Like a hurricane! 130 00:10:00,400 --> 00:10:02,367 that had wrecked on the Gulf Coast. 131 00:10:02,402 --> 00:10:07,172 So all of these clues that we began to put together began to make us think, 132 00:10:07,207 --> 00:10:09,074 maybe this is Luna. 133 00:10:10,611 --> 00:10:14,212 NARRATOR: According to historical records, a Spanish explorer, 134 00:10:14,247 --> 00:10:18,283 Don Tristan de Luna Arellano, founds a settlement somewhere 135 00:10:18,318 --> 00:10:22,387 on the coast of the Gulf of Mexico in 1559. 136 00:10:22,990 --> 00:10:28,927 It lasted just two years before vanishing without a trace. 137 00:10:31,798 --> 00:10:36,501 JOHN: The records for the Spanish colonial effort in the New World are vast 138 00:10:36,536 --> 00:10:40,238 and voluminous and well preserved in general. 139 00:10:42,476 --> 00:10:46,578 I was always interested in archaeology and the thrill of exploration and discovery, 140 00:10:46,613 --> 00:10:52,851 but the documents provide so much more rich detail and made it much more personal. 141 00:10:55,055 --> 00:10:57,722 The Luna expedition was the most well financed 142 00:10:57,758 --> 00:11:00,091 and certainly the most ambitious attempt 143 00:11:00,127 --> 00:11:03,712 to establish a Spanish foothold in Florida. 144 00:11:05,532 --> 00:11:08,099 DELLA: The search for the Luna land site has been ongoing 145 00:11:08,135 --> 00:11:11,136 at Pensacola for years and years. 146 00:11:11,171 --> 00:11:14,539 We always joked that we might find a plank 147 00:11:14,574 --> 00:11:18,176 that said 'Luna was here' carved into it. 148 00:11:18,211 --> 00:11:24,282 JOHN: Luna, arrived in 1559 with a fleet and they unloaded 1500 people, 149 00:11:24,317 --> 00:11:28,486 500 soldiers and a thousand additional colonists. 150 00:11:28,522 --> 00:11:33,558 He had no way to know that a hurricane was coming. 151 00:11:33,593 --> 00:11:37,829 The wreck showed clear evidence of being driven ashore 152 00:11:37,864 --> 00:11:41,199 and that actually corresponds quite well 153 00:11:41,234 --> 00:11:43,835 with a letter that was written by Tristan de Luna 154 00:11:43,870 --> 00:11:47,338 to the King of Spain in which he describes 155 00:11:47,374 --> 00:11:52,510 that a storm hit about five weeks in. 156 00:11:52,546 --> 00:11:56,581 The hurricane arrived at night and then for the next 24 hours 157 00:11:56,616 --> 00:11:58,149 the winds came from all directions 158 00:12:01,722 --> 00:12:06,291 and he said that the ships were broken free from their anchors, 159 00:12:06,326 --> 00:12:10,862 driven ashore and broken open and destroyed. 160 00:12:13,533 --> 00:12:17,836 But if this was a ship from the Luna expedition, it raises a whole new question. 161 00:12:19,039 --> 00:12:21,673 We know that Luna lost seven ships in that storm. 162 00:12:24,044 --> 00:12:25,543 Where were the rest of them? 163 00:12:32,385 --> 00:12:36,054 We got a very large grant from the State of Florida 164 00:12:36,089 --> 00:12:39,958 to continue the survey to try to find the other ships 165 00:12:39,993 --> 00:12:43,027 and confirm we'd located Luna's fleet. 166 00:12:43,864 --> 00:12:49,400 So, we purchased a really state of the art magnetometer. 167 00:12:49,436 --> 00:12:51,069 GREG: I started here right after Hurricane Ivan, 168 00:12:51,104 --> 00:12:54,139 that was my first hurricane at the University of West Florida. 169 00:12:54,174 --> 00:12:56,775 Before that I'd been doing remote sensing surveys 170 00:12:56,810 --> 00:13:00,278 and that's some of the expertise that I brought to the program. 171 00:13:01,615 --> 00:13:06,351 Magnetometers can sense ferrous metals which is typically iron 172 00:13:06,386 --> 00:13:09,654 in a ship-wreck and that's how we find these wrecks. 173 00:13:11,024 --> 00:13:14,492 JOHN: It seemed logical if the first ship was in this area 174 00:13:14,528 --> 00:13:18,830 let's continue to look around that ship with this new magnetometer. 175 00:13:20,934 --> 00:13:22,167 GREG: That's where we got lucky. 176 00:13:23,637 --> 00:13:25,236 With a magnetometer you can never really know 177 00:13:25,272 --> 00:13:27,639 what you have until you put divers in the water. 178 00:13:27,674 --> 00:13:29,741 It's actually diving on these remote sensing anomalies 179 00:13:29,776 --> 00:13:32,877 that we find to find out what they are. 180 00:13:32,913 --> 00:13:35,613 And when we began finding the olive jar fragments, 181 00:13:35,649 --> 00:13:37,615 the lead sheathing on the hulls 182 00:13:37,651 --> 00:13:39,784 that's when the light bulbs began going off. 183 00:13:42,255 --> 00:13:45,857 JOHN: We found enough little pieces of olive jar 184 00:13:45,892 --> 00:13:48,693 that we were convinced on day two that it was 185 00:13:48,728 --> 00:13:52,063 a Luna ship associated with the first one. 186 00:13:55,735 --> 00:14:00,939 One ship in the bay might be explained away as something random, 187 00:14:00,974 --> 00:14:03,274 but two ships near each other, 188 00:14:03,310 --> 00:14:06,211 that was an astoundingly important discovery. 189 00:14:07,681 --> 00:14:15,453 It confirmed in my mind that we absolutely positively did have the Luna fleet here. 190 00:14:17,557 --> 00:14:22,160 It meant that not only did we have a number more wrecks 191 00:14:22,195 --> 00:14:24,629 to find but that we also had 192 00:14:24,664 --> 00:14:27,365 that settlement site and it had to be close. 193 00:14:30,503 --> 00:14:33,071 NARRATOR: For nearly ten years the team searches 194 00:14:33,106 --> 00:14:36,674 for the location of Tristan de Luna's lost settlement. 195 00:14:36,693 --> 00:14:39,861 And finds nothing! 196 00:14:39,913 --> 00:14:42,714 JOHN: We had no archaeological evidence whatsoever 197 00:14:42,749 --> 00:14:45,049 to pin down where the settlement was. 198 00:14:57,264 --> 00:15:00,798 In the fall of 2015, a former student reported 199 00:15:00,834 --> 00:15:02,834 that he had found some Spanish artefacts 200 00:15:02,869 --> 00:15:07,188 in a newly cleared house lot and wanted us to take a look, 201 00:15:07,240 --> 00:15:09,674 thought they might be 16th century. 202 00:15:12,145 --> 00:15:15,179 My first reaction was okay great, you know we have a lot 203 00:15:15,215 --> 00:15:17,081 of people reporting a lot of things 204 00:15:17,117 --> 00:15:19,083 but something in the back of my mind I think you know, 205 00:15:19,119 --> 00:15:21,219 tickled my interest because of the fact 206 00:15:21,254 --> 00:15:23,955 that it was on a particular lot in a particular neighborhood 207 00:15:23,990 --> 00:15:27,225 right where we thought Luna might be located. 208 00:15:28,194 --> 00:15:30,194 It turns out that it was identical to the kinds 209 00:15:30,213 --> 00:15:33,564 of olive jar that had already been found on the shipwrecks. 210 00:15:45,662 --> 00:15:49,497 shipwrecks hopes the pottery shards found on shore 211 00:15:49,532 --> 00:15:53,768 will finally lead them to the lost settlement of Tristan de Luna. 212 00:15:55,739 --> 00:15:57,905 JOHN: We called on current students and former students, 213 00:15:57,941 --> 00:16:00,942 everybody in the faculty and the staff, 214 00:16:00,977 --> 00:16:02,944 anybody who we could get out there. 215 00:16:02,979 --> 00:16:06,714 Then 5 days of intense fieldwork we found 216 00:16:06,750 --> 00:16:10,051 literally hundreds of pieces of olive jar. 217 00:16:10,086 --> 00:16:12,837 DELLA: I got really excited personally, thinking maybe this is it. 218 00:16:12,889 --> 00:16:18,293 One of the very first major expeditions to settle what is now the United States. 219 00:16:20,530 --> 00:16:22,463 JOHN: Once the neighbors started to realize 220 00:16:22,499 --> 00:16:25,099 the importance of the site they began to call themselves 221 00:16:25,135 --> 00:16:26,668 'America's First Neighborhood'. 222 00:16:29,806 --> 00:16:32,740 We did basically a year's worth of full-fledged shovel testing 223 00:16:32,776 --> 00:16:38,246 and dug more than 900 shovel tests across more than 50 acres. 224 00:16:40,083 --> 00:16:43,017 All the evidence indicates that this settlement was the largest ever attempted 225 00:16:43,053 --> 00:16:45,186 in 16th Century Florida. 226 00:16:45,221 --> 00:16:51,225 We are essentially digging up a very short-lived city. 227 00:16:51,261 --> 00:16:53,361 NARRATOR: The scale of the settlement confirms 228 00:16:53,396 --> 00:16:56,197 the Spanish crown equipped the expedition 229 00:16:56,232 --> 00:17:00,568 with everything needed to survive in the New World. 230 00:17:00,603 --> 00:17:05,907 But a major hurricane is a force few Europeans had ever experienced. 231 00:17:06,609 --> 00:17:10,244 When it arrived, the colony is helpless. 232 00:17:12,215 --> 00:17:14,849 JOHN: I've lived in Florida uh since 2001 233 00:17:14,884 --> 00:17:18,319 and I've been through quite a few hurricanes so I've seen enough to know 234 00:17:18,355 --> 00:17:21,856 that this storm must have been absolutely devastating. 235 00:17:28,498 --> 00:17:33,167 We do know from the documents that the hurricane caught them 236 00:17:33,203 --> 00:17:36,137 in the midst of construction and as a result 237 00:17:36,172 --> 00:17:41,676 they had not actually started to use the warehouse for storing food. 238 00:17:41,711 --> 00:17:46,447 And so, the hurricane wiped out not just the fleet 239 00:17:46,483 --> 00:17:49,150 but the food that they had stored on it. 240 00:17:49,953 --> 00:17:54,222 And it took 24 hours for the storm to pass completely through. 241 00:17:54,257 --> 00:17:57,925 Luna doubtless saw that his fleet was devastated 242 00:17:57,961 --> 00:18:01,562 and there was nothing lefty but hulks of broken ships 243 00:18:01,598 --> 00:18:08,102 and masts and lots and lots of supplies, barrels and boxes, crates. 244 00:18:08,138 --> 00:18:13,941 The Luna expedition could have changed the course of history in this continent. 245 00:18:13,977 --> 00:18:17,979 But overnight the settlers were transformed from 246 00:18:18,014 --> 00:18:20,314 part of the most ambitious and well financed 247 00:18:20,350 --> 00:18:23,885 colonial expeditions that Spain ever mounted to North America 248 00:18:23,903 --> 00:18:27,355 into starving refugees. 249 00:18:27,390 --> 00:18:31,292 Some of the settlers decided to throw in the towel and go home. 250 00:18:31,327 --> 00:18:35,596 Some, including Luna, struggled on for nearly two years. 251 00:18:35,632 --> 00:18:38,232 But ultimately the site was abandoned. 252 00:18:39,402 --> 00:18:42,937 Had this hurricane not happened America might have looked 253 00:18:42,972 --> 00:18:45,072 very, very different today. 254 00:18:46,376 --> 00:18:49,844 It's entirely possible even likely that because 255 00:18:49,879 --> 00:18:52,613 the Spanish would have had a really solid foothold 256 00:18:52,649 --> 00:18:56,284 in southeastern North America a full generation 257 00:18:56,319 --> 00:18:59,487 before the English settlers arrived at Jamestown. 258 00:18:59,522 --> 00:19:03,257 North America might simply have been Spanish North America. 259 00:19:04,527 --> 00:19:08,963 NARRATOR: Instead, the British and French come to dominate most of the continent. 260 00:19:09,899 --> 00:19:13,201 The Spanish settlements in Florida, like St. Augustine, 261 00:19:13,236 --> 00:19:16,270 eventually fall under British control. 262 00:19:19,809 --> 00:19:24,178 St Augustine remains the oldest continuously inhabited city 263 00:19:24,214 --> 00:19:30,084 in the United States and a victim of countless hurricanes 264 00:19:30,119 --> 00:19:31,652 since its founding. 265 00:19:38,127 --> 00:19:40,261 CHUCK: You've had ships coming and going 266 00:19:40,296 --> 00:19:44,732 to St Augustine for over 450 years now. 267 00:19:44,767 --> 00:19:48,402 At the same time, it's always had a treacherous inlet. 268 00:19:52,141 --> 00:19:55,009 There's a lot of job security if you're an underwater archaeologist 269 00:19:55,044 --> 00:19:59,680 in St Augustine because there have been so many shipwrecks over the years. 270 00:19:59,716 --> 00:20:04,819 We know there's a lot out there but finding them is what's tricky. 271 00:20:06,689 --> 00:20:10,958 We have an operation that can actually go out, finding shipwrecks at least until 272 00:20:10,994 --> 00:20:14,328 hurricane season cuts our dive season short. 273 00:20:17,967 --> 00:20:20,234 SAM: It was at the end of the field season 274 00:20:20,270 --> 00:20:25,306 so we were all pretty tired and we had this book 275 00:20:25,341 --> 00:20:30,811 of the various targets that we had and we said "let's go to this one, 276 00:20:30,847 --> 00:20:33,614 it's got a magnetic signature that looks interesting". 277 00:20:33,650 --> 00:20:39,820 CHUCK: We are blessed with really poor diving conditions here in St Augustine, 278 00:20:39,856 --> 00:20:41,989 it's pretty black down there. 279 00:20:42,725 --> 00:20:48,596 We do our best to pinpoint the exact location and then we will probe. 280 00:20:48,631 --> 00:20:54,201 I cleared off an area and then I began to feel with my fingers. 281 00:20:57,340 --> 00:21:01,275 I could feel lumpy, bumpy rock-like things. 282 00:21:01,311 --> 00:21:04,078 I immediately knew they weren't any kind of natural 283 00:21:04,113 --> 00:21:06,647 stone but what we call concretions. 284 00:21:06,683 --> 00:21:11,085 So iron objects that were encrusted with rust. 285 00:21:11,821 --> 00:21:14,121 I felt a wooden plank. 286 00:21:14,157 --> 00:21:18,059 At this point my heart is bump bump bump bump bump beating. 287 00:21:18,094 --> 00:21:21,395 Down there alone in the dark I really knew 288 00:21:21,431 --> 00:21:23,998 there's really nothing else that could be. 289 00:21:24,033 --> 00:21:26,200 It just had to be a shipwreck! 290 00:21:38,131 --> 00:21:40,131 CHUCK: The game is afoot now, we have something! 291 00:21:40,166 --> 00:21:43,534 SAM: I'm like 'that's really good news!' 292 00:21:43,569 --> 00:21:47,305 It was actually the perfect way to end a field season. 293 00:21:49,242 --> 00:21:52,209 CHUCK: There is an old joke in archaeology, it's almost a truism, 294 00:21:52,245 --> 00:21:55,413 that you make your big discovery on the last day. 295 00:21:55,448 --> 00:21:57,581 SAM: We were done for the summer. 296 00:21:57,617 --> 00:22:01,852 NARRATOR: September brings the peak of Florida's Hurricane Season 297 00:22:01,888 --> 00:22:04,155 making it impossible to excavate. 298 00:22:05,658 --> 00:22:13,631 But for archaeologists, unsettled weather can be both a curse and a blessing. 299 00:22:13,666 --> 00:22:16,701 CHUCK: After a period of storm activity, 300 00:22:16,736 --> 00:22:19,370 we had an opportunity to go out and take a look at the site, 301 00:22:19,405 --> 00:22:22,006 so what we would call a monitoring dive. 302 00:22:23,876 --> 00:22:29,814 SAM: It was a beautiful morning, I was on the first dive team 303 00:22:29,849 --> 00:22:33,751 and it's absolutely beautiful conditions, 304 00:22:33,786 --> 00:22:35,886 crystal clear and I look forward 305 00:22:35,922 --> 00:22:41,292 and it's just like this blue gloom but a really rich beautiful blue. 306 00:22:41,327 --> 00:22:46,163 And so we're going along and I'm looking at this blue gloom 307 00:22:46,199 --> 00:22:51,402 and then I see this something looming out of the blue gloom 308 00:22:51,421 --> 00:22:54,505 and I'm like, that's a cannon. 309 00:22:54,941 --> 00:23:06,951 And then I look again and right next to the canon is a bell and I can't believe it. 310 00:23:06,986 --> 00:23:09,487 It's just not computing, I mean that's a canon 311 00:23:09,522 --> 00:23:14,258 and that's a bell and I'm like 'brrrrr look at this!!' 312 00:23:17,663 --> 00:23:24,468 So we swam around and it was like a whole different wreck, you know? 313 00:23:24,504 --> 00:23:28,072 CHUCK: They came up after a relatively short amount of time 314 00:23:28,107 --> 00:23:30,641 and Sam pulled his regulator out of his mask 315 00:23:30,676 --> 00:23:33,811 and he said, 'there's 10 feet of visibility'. 316 00:23:33,846 --> 00:23:36,647 Well that instantly got everyone's attention on the boat. 317 00:23:36,682 --> 00:23:40,584 We had not yet seen any of the shipwreck. 318 00:23:40,620 --> 00:23:44,655 We had been there without able, you know, just doing archaeology by Braille. 319 00:23:44,690 --> 00:23:49,860 And then the next sentence he says, 'oh and there's five cannon 320 00:23:49,896 --> 00:23:54,532 and the ship's bell just sitting there on the surface'. 321 00:23:54,567 --> 00:23:58,169 So that, you know, our first reaction is like, 'are you joking?' 322 00:23:58,204 --> 00:24:00,805 SAM: And I'm like 'nah, man I'm just kidding.' 323 00:24:00,840 --> 00:24:03,574 CHUCK: And I could see in his eyes, I'm like 'you're not joking.' He's like 324 00:24:03,609 --> 00:24:07,445 'no I'm not joking there's cannons and a bell right down here.' 325 00:24:09,415 --> 00:24:13,017 SAM: Yeah, I think that's probably the best dive I've ever done. 326 00:24:15,354 --> 00:24:19,089 CHUCK: A ship's bell, that's the holy grail for a diving archaeologist. 327 00:24:19,125 --> 00:24:21,492 That could give the name of the ship and the year it was launched. 328 00:24:25,331 --> 00:24:29,733 SAM: So we had this event, we invited all sorts of people, 329 00:24:29,769 --> 00:24:32,136 nice nibbles and, and drinks. 330 00:24:32,171 --> 00:24:37,975 And our conservator was starting to clean off the bell 331 00:24:38,010 --> 00:24:41,612 and the idea was we're gonna have this wonderful event 332 00:24:41,647 --> 00:24:44,882 where we reveal the name of the wreck. 333 00:24:44,917 --> 00:24:50,554 And she cleaned the bell and there was no name at all, it was a completely blank bell. 334 00:24:51,624 --> 00:24:54,458 CHUCK: The ship's secrets weren't just going to fall into our laps. 335 00:24:54,494 --> 00:24:57,962 We needed to get more information. 336 00:24:57,997 --> 00:25:00,965 Archaeology is just like a crime scene investigation. 337 00:25:01,000 --> 00:25:05,569 We are trying to reconstruct a scenario, an event, from the past. 338 00:25:05,605 --> 00:25:09,540 In our case it's a really cold case, it goes back hundreds of years. 339 00:25:13,145 --> 00:25:17,648 SAM: One of the things that was obvious from the beginning, 340 00:25:17,683 --> 00:25:20,551 the arrangement of the material and the guns in particular 341 00:25:20,586 --> 00:25:22,953 on the seabed was not what I would call normal. 342 00:25:25,291 --> 00:25:27,458 CHUCK: Cannons, if they're in place as weapons, 343 00:25:27,493 --> 00:25:30,895 you might expect to find cannons kind of evenly placed 344 00:25:30,930 --> 00:25:33,297 pointing away from the shipwreck. 345 00:25:34,867 --> 00:25:38,602 The bell is usually at the belfry, that's at a certain part of the ship. 346 00:25:38,638 --> 00:25:41,539 Maybe cookware, things like that, where the galley 347 00:25:41,574 --> 00:25:43,173 or the kitchen of the ship would be. 348 00:25:43,209 --> 00:25:46,143 We had definitely a different scenario. 349 00:25:46,812 --> 00:25:49,813 SAM: It was clear that something was going on. 350 00:25:49,849 --> 00:25:54,184 One of the objects that I noticed was this long strange 351 00:25:54,220 --> 00:25:59,723 cylindrical object and it was all lead, completely and utterly lead. 352 00:25:59,759 --> 00:26:04,128 CHUCK: I had an attached length of plumbing or piping to it. 353 00:26:04,163 --> 00:26:06,063 This was a deck pump. 354 00:26:06,098 --> 00:26:09,533 When you operated the pump handle you were pumping up nice, 355 00:26:09,569 --> 00:26:15,573 clean seawater to swab the decks, to fight a fire so a deck pump 356 00:26:15,608 --> 00:26:20,177 was a way to get seawater on board the vessel for a variety of purposes. 357 00:26:22,682 --> 00:26:29,587 SAM: We brought this up and we had it in the lab and one of the team, very keen eyes, 358 00:26:29,622 --> 00:26:35,459 noticed that there were hack marks on the lead. 359 00:26:35,494 --> 00:26:41,699 CHUCK: We had more than one segment of plumbing that had been cut clean through. 360 00:26:41,734 --> 00:26:43,767 And then we realized what had happened. 361 00:26:45,905 --> 00:26:50,808 SAM: Someone had taken an axe and hacked it, hacked it out of the ship. 362 00:26:50,843 --> 00:26:52,743 CHUCK: This is an expensive piece of equipment. 363 00:26:52,778 --> 00:26:56,447 Why would you purposely disable it? 364 00:26:57,984 --> 00:27:03,520 The answer that makes sense to us is that this was a frenzied attempt, 365 00:27:03,556 --> 00:27:08,926 a desperate attempt to remove this pump from the hull of the ship 366 00:27:08,961 --> 00:27:11,028 where it would have been mounted. 367 00:27:11,047 --> 00:27:16,300 It seems pretty clear to us that that is an attempt to lighten the ship. 368 00:27:18,170 --> 00:27:21,271 And that makes sense if a ship has run aground 369 00:27:21,290 --> 00:27:26,577 and you have to try to save the ship by jettisoning all the heavy cargo. 370 00:27:26,612 --> 00:27:31,615 These artefacts are telling the story of the desperate attempt by the captain, 371 00:27:31,651 --> 00:27:35,602 the crew and the passengers to try to save the ship. 372 00:27:35,655 --> 00:27:39,690 If you can just get the ship to float up off the sandbar, 373 00:27:39,709 --> 00:27:43,460 then you can get it ashore and you've saved the vessel. 374 00:27:44,497 --> 00:27:47,865 We had found that bell, the cannons, the deck pump, 375 00:27:47,900 --> 00:27:51,068 but we only ever found that one wooden plank. 376 00:27:51,103 --> 00:27:54,571 There was no hull, no remains of the ship structure itself. 377 00:27:54,607 --> 00:27:57,841 Was it possible that the ship had gotten away? 378 00:28:09,071 --> 00:28:11,572 the investigation takes a closer look 379 00:28:11,607 --> 00:28:15,876 at the metal artefacts found off the coast of St. Augustine. 380 00:28:17,113 --> 00:28:19,613 CHUCK: When you have an iron object that is immersed 381 00:28:19,648 --> 00:28:25,252 in sea water for centuries it undergoes a number of chemical changes. 382 00:28:25,287 --> 00:28:29,690 That rust turns into an encrustation, it turns into a coating. 383 00:28:29,725 --> 00:28:33,394 It's thick and lumpy and bumpy and shells get stuck to it 384 00:28:33,429 --> 00:28:35,062 and often you'll have more than one 385 00:28:35,097 --> 00:28:37,898 artefact near each other and they all just rust together 386 00:28:37,933 --> 00:28:41,735 into what may just be an amorphous blob. 387 00:28:41,771 --> 00:28:44,271 SAM: Once we started examining the concretions, 388 00:28:44,306 --> 00:28:46,940 X-raying the concretions and finding 389 00:28:46,976 --> 00:28:49,009 the smaller objects within the concretions, 390 00:28:49,045 --> 00:28:55,249 that is when the full story of what actually happened came out. 391 00:28:55,284 --> 00:29:00,287 What X-rays can do if you really amp up the power, 392 00:29:00,322 --> 00:29:03,657 it can actually see through the calcium carbonate. 393 00:29:03,692 --> 00:29:08,395 CHUCK: We found a lot of small items, a lot of personal items, a lot of cookware, 394 00:29:08,431 --> 00:29:12,166 a lot of plates, a lot of spoons, shoe buckles, 395 00:29:12,201 --> 00:29:14,635 coins, so we really are getting a picture 396 00:29:14,670 --> 00:29:16,837 that a lot of the things that people were bringing 397 00:29:16,872 --> 00:29:20,607 with them ended up on the sea floor. 398 00:29:21,210 --> 00:29:23,377 SAM: When we found the Queen Anne's pistol, 399 00:29:23,412 --> 00:29:27,881 expensive small items that you absolutely would not throw overboard 400 00:29:27,917 --> 00:29:30,517 under any circumstance, that told us the story 401 00:29:30,553 --> 00:29:34,221 that they were so stuck on the bar they never got off. 402 00:29:34,256 --> 00:29:36,457 CHUCK: It seems pretty conclusive that this ship 403 00:29:36,492 --> 00:29:40,727 could not be saved and we have the burial ground of this vessel 404 00:29:40,763 --> 00:29:43,330 and all of the items that were on board. 405 00:29:45,201 --> 00:29:51,171 SAM: What archaeologists really want to do is what we want to tell the story, 406 00:29:51,207 --> 00:29:55,442 where was it from? When did it wreck? Why did it wreck? 407 00:29:55,478 --> 00:30:02,649 So our story evolved from very small clues. 408 00:30:02,685 --> 00:30:05,352 CHUCK: There was a lot of stuff. 409 00:30:05,387 --> 00:30:10,557 We found a base of a wine glass that we knew dated to some time in the 1700s. 410 00:30:10,593 --> 00:30:12,960 We found a pewter spoon, the same thing. 411 00:30:12,995 --> 00:30:15,863 Everything we found it seemed to push the date 412 00:30:15,898 --> 00:30:20,100 to the second half and even the later 1700s. 413 00:30:20,136 --> 00:30:24,938 So as we narrow that time range down, there was one event in particular, 414 00:30:24,974 --> 00:30:28,275 that looked promising. 415 00:30:28,310 --> 00:30:34,381 NARRATOR: In December 1782, the American Revolution is entering its final phase. 416 00:30:34,416 --> 00:30:39,086 The 13 colonies are a dangerous place for those still loyal to the crown. 417 00:30:40,389 --> 00:30:46,960 So in dozens of ships they flee to Florida, which remains loyal to King George III. 418 00:30:46,996 --> 00:30:52,833 They hope to find refuge in St Augustine but not all of them reach safety. 419 00:30:54,470 --> 00:30:57,004 CHUCK: This could be a candidate, one of these ships. 420 00:30:57,039 --> 00:31:00,474 Everything seemed to be pointing into this direction. 421 00:31:00,509 --> 00:31:04,011 We had debates about what artefacts we might actually find, 422 00:31:04,046 --> 00:31:07,781 that would really be definitive. And then it happened. 423 00:31:07,816 --> 00:31:08,916 We found the artefact. 424 00:31:11,153 --> 00:31:14,354 It was a single button. 425 00:31:14,390 --> 00:31:19,960 A small pewter button, it had lettering on it that we could see after cleaning, 426 00:31:19,995 --> 00:31:26,333 the letters RP with a crown above and that told us immediately 427 00:31:26,368 --> 00:31:27,885 that we had Loyalists on board. 428 00:31:27,937 --> 00:31:31,271 Because that RP button stands for Royal Provincials, 429 00:31:31,307 --> 00:31:33,040 that's a unit in the British Army 430 00:31:33,075 --> 00:31:36,376 it's made up of Americans who were loyal to King George. 431 00:31:38,814 --> 00:31:42,783 It is poignant. 432 00:31:42,818 --> 00:31:45,519 To read some of the letters, to read some of the accounts 433 00:31:45,554 --> 00:31:47,487 that were written back and forth 434 00:31:47,523 --> 00:31:52,559 about this particular event that's a really important part of the process. 435 00:31:53,362 --> 00:31:57,564 Elizabeth Lichtenstein Johnston was a Georgia Loyalist. 436 00:31:57,600 --> 00:32:01,335 She had evacuated and had ended up in St Augustine 437 00:32:01,370 --> 00:32:05,105 and so she was an eyewitness to these shipwrecks. 438 00:32:07,610 --> 00:32:13,480 16 vessels, small vessels she says, have been lost on or about the bar. 439 00:32:13,515 --> 00:32:16,850 So that means they have run aground on the sandbar. 440 00:32:17,920 --> 00:32:20,687 These ships were carrying people but they're also their hopes 441 00:32:20,723 --> 00:32:23,624 and dreams for making a new life in this 442 00:32:23,659 --> 00:32:28,895 really difficult time in their lives and they're just strewn on the sandbar. 443 00:32:33,235 --> 00:32:35,369 We don't know for sure what caused these ships to wreck, 444 00:32:35,404 --> 00:32:37,504 but we know there was a hurricane 445 00:32:37,539 --> 00:32:41,842 just two months before this fleet came to grief. 446 00:32:41,877 --> 00:32:45,078 We don't know exactly what its impact was on Florida 447 00:32:45,114 --> 00:32:50,150 but a hurricane represents a massive force of mother nature. 448 00:32:52,921 --> 00:32:55,489 SAM: Every time a hurricane came through the channel 449 00:32:55,524 --> 00:32:59,459 would change, the sands would shift. 450 00:32:59,495 --> 00:33:01,495 CHUCK: That shifting sandbar meant these ships 451 00:33:01,530 --> 00:33:05,098 had no idea where the safe channel was. 452 00:33:05,134 --> 00:33:11,405 SAM: So, it is possible that hurricanes effectively caused these wrecks. 453 00:33:11,440 --> 00:33:13,473 CHUCK: In a very real sense it is because 454 00:33:13,509 --> 00:33:16,376 of hurricanes that this inlet was so dangerous. 455 00:33:18,847 --> 00:33:23,383 These storms throughout history have changed history. 456 00:33:23,419 --> 00:33:25,118 And what a hurricane does below the water 457 00:33:25,154 --> 00:33:28,488 can be as dramatic as what it does on shore. 458 00:33:33,362 --> 00:33:37,130 NARRATOR: Millions of people on or near the American coast 459 00:33:37,166 --> 00:33:39,933 live under the threat of hurricanes. 460 00:33:39,968 --> 00:33:43,337 But of all the dangers these monster storms bring, 461 00:33:43,372 --> 00:33:46,740 the greatest comes from Storm Surges. 462 00:33:46,775 --> 00:33:51,211 The huge volume of ocean water pushed ashore by storm. 463 00:33:51,947 --> 00:33:56,516 The surges can cause devastating even deadly flooding. 464 00:33:56,552 --> 00:33:59,119 OBAMA: Obviously all of us across the country are concerned 465 00:33:59,154 --> 00:34:02,823 about the potential impact of Hurricane Sandy. 466 00:34:02,858 --> 00:34:05,959 COMMUNICATOR: We are expecting a very large storm 467 00:34:05,994 --> 00:34:09,596 with impacts over a very large area. 468 00:34:09,631 --> 00:34:12,999 ART: When we saw that Sandy was coming our way, we dropped everything. 469 00:34:13,035 --> 00:34:15,535 I remember calling up the director of marine operations 470 00:34:15,571 --> 00:34:18,238 and saying "I need to get on that boat". 471 00:34:19,908 --> 00:34:25,178 I'm a coastal geologist and my primary mission is to try and anticipate 472 00:34:25,214 --> 00:34:28,415 how and where Storm Surge will hit populated areas. 473 00:34:29,918 --> 00:34:32,419 People think the sky is where to look for clues 474 00:34:32,454 --> 00:34:34,955 to the damage a hurricane is going to do, 475 00:34:34,990 --> 00:34:37,524 but for me, the answers are underwater. 476 00:34:38,894 --> 00:34:42,929 ART: We really need to understand what's going on in the water and at the seabed, 477 00:34:42,965 --> 00:34:46,767 if we're going to try to understand how storm surge plays out. 478 00:34:46,802 --> 00:34:48,402 MAN: Yeah looks good. 479 00:34:48,437 --> 00:34:51,738 ART: When they tell you to evacuate, you need to evacuate. 480 00:34:51,774 --> 00:34:57,444 While everyone else was preparing to leave, we were heading 16 miles offshore 481 00:34:57,479 --> 00:34:59,679 towards the approaching storm. 482 00:34:59,715 --> 00:35:02,582 We needed to seize that moment, to try to capture 483 00:35:02,618 --> 00:35:06,119 a picture of the seabed right before the storm 484 00:35:06,155 --> 00:35:09,456 and see how that storm would evolve and change. 485 00:35:09,491 --> 00:35:13,460 That would give us an incredible picture of how the seafloor, 486 00:35:13,495 --> 00:35:15,695 the ocean and the sky interact, 487 00:35:15,731 --> 00:35:18,965 something that has very rarely, if ever, been done. 488 00:35:19,001 --> 00:35:21,802 And the best place to do it was Redbird Reef. 489 00:35:24,006 --> 00:35:27,808 NARRATOR: This is no ordinary patch on the sea floor. 490 00:35:27,843 --> 00:35:31,244 It's the strangest of artificial reefs. 491 00:35:34,550 --> 00:35:38,084 ART: There are hundreds upon hundreds of New York City subway cars 492 00:35:38,120 --> 00:35:40,120 on the sea floor. 493 00:35:40,155 --> 00:35:43,223 Two and a half meters, we're closing in on it. 494 00:35:43,258 --> 00:35:45,759 For me the Redbird Reef site has become 495 00:35:45,794 --> 00:35:49,196 a great natural laboratory for us to better understand 496 00:35:49,231 --> 00:35:52,165 hurricanes and their impacts on the coastline. 497 00:35:53,769 --> 00:35:57,337 CARTER: I need a little bit more, I'm getting tugged. 498 00:35:57,372 --> 00:36:00,307 ART: That's it right there, yep, coming right up on the corner. 499 00:36:03,479 --> 00:36:06,313 It really makes for an amazing seascape. 500 00:36:06,348 --> 00:36:12,452 Rows upon rows of subway cars in different orientations and arrangements. 501 00:36:12,488 --> 00:36:15,288 I often chuckle to my archaeologist friends and say, 502 00:36:15,324 --> 00:36:18,758 'how would you interpret this hundreds of years from now? 503 00:36:18,794 --> 00:36:22,929 What kind of bizarre sort of battle took place here?' 504 00:36:35,177 --> 00:36:39,279 CARTER: We've been studying Redbird Reef for over a decade now. 505 00:36:39,314 --> 00:36:42,883 ART: The missing element was we need a storm. 506 00:36:42,918 --> 00:36:45,318 What Sandy meant for us is it gave us 507 00:36:45,354 --> 00:36:50,290 for the first time an opportunity to see how a single storm event 508 00:36:50,325 --> 00:36:52,359 could change the seabed. 509 00:36:52,394 --> 00:36:55,295 Let's see how she's looking here good! 510 00:36:55,330 --> 00:36:57,497 I wanted four days out at that site. 511 00:36:57,533 --> 00:37:00,634 We could squeeze one day to get everything done. 512 00:37:00,669 --> 00:37:03,803 That meant we needed to map the site, we needed to deploy our instruments, 513 00:37:03,839 --> 00:37:07,841 and then we needed to get the heck out of there before Sandy came through. 514 00:37:10,212 --> 00:37:11,912 COMMUNICATOR: We're looking at tropical storm force winds 515 00:37:11,947 --> 00:37:14,247 along the coast, beginning tonight. 516 00:37:18,053 --> 00:37:20,086 ART: One of the last things we did was deploy 517 00:37:20,122 --> 00:37:22,556 an instrument frame to the sea floor, 518 00:37:22,591 --> 00:37:25,559 that was going to sit out there during the storm 519 00:37:25,594 --> 00:37:28,128 and measure the waves and currents. 520 00:37:28,730 --> 00:37:31,398 As we were leaving, I had this thought, 521 00:37:31,433 --> 00:37:33,733 'will we ever see that instrument package again?' 522 00:37:44,913 --> 00:37:49,082 covered over an area of 1.4 million square miles 523 00:37:49,117 --> 00:37:53,053 so this was a massive storm for the Atlantic basin. 524 00:37:54,623 --> 00:37:58,458 It's just incomprehensible to think about the billions and billions of dollars 525 00:37:58,493 --> 00:38:01,094 of damage that was wrought by this storm. 526 00:38:11,473 --> 00:38:15,609 Once Sandy had passed we went back out to the site to recover our instrumentation. 527 00:38:16,912 --> 00:38:21,014 We just didn't know what to expect when we got there and whether or not we'd have any 528 00:38:21,049 --> 00:38:22,916 equipment left to recover. 529 00:38:26,588 --> 00:38:30,523 ART: We start hauling up the lines and as part of the rope was coming up, 530 00:38:30,559 --> 00:38:35,629 I saw this tangle of metal wrapped in the line and my heart sank. 531 00:38:38,333 --> 00:38:40,300 CARTER: I turned and looked at Art 532 00:38:40,335 --> 00:38:44,437 and he just this exasperated sigh of 'oh my goodness there's nothing left.' 533 00:38:49,211 --> 00:38:52,312 It turns out that that was a piece of one of the subway cars 534 00:38:52,347 --> 00:38:55,749 possibly a door frame or a window frame. 535 00:38:55,784 --> 00:39:01,187 ART: The storm had torn it free and tangled it up amongst our line as the waves 536 00:39:01,223 --> 00:39:04,391 and the currents were sloshing back and forth. 537 00:39:04,426 --> 00:39:07,160 So, we kept hauling up, pulling up and then suddenly, 538 00:39:07,195 --> 00:39:10,630 through the water I see the frame of our instrument package 539 00:39:10,666 --> 00:39:17,270 and when it burst through the surface, it was just a real moment of elation 540 00:39:17,305 --> 00:39:20,607 and my final thought was, I hope we hit record! 541 00:39:24,312 --> 00:39:26,579 As we start looking back through the records, 542 00:39:26,615 --> 00:39:30,817 we're our eyes are just going bug-eyed. 543 00:39:30,852 --> 00:39:33,319 Right there at the Redbird Reef site we measured 544 00:39:33,355 --> 00:39:37,157 two and a half story-high waves with a period of 16 seconds. 545 00:39:37,192 --> 00:39:40,427 Every 16 seconds another one of these monster, 546 00:39:40,462 --> 00:39:44,998 mammoth waves is coming through generating three knot currents 547 00:39:45,033 --> 00:39:48,535 at the sea floor, in 100 feet of water. 548 00:39:48,570 --> 00:39:54,074 CARTER: The currents that were being generated by that storm was staggering to us. 549 00:39:54,109 --> 00:39:58,044 ART: We knew in that moment that our gambit had paid off. 550 00:39:58,080 --> 00:40:00,513 But to truly gauge the power of those currents, 551 00:40:00,549 --> 00:40:05,185 we needed to measure the storm's impact right at the seabed. 552 00:40:05,220 --> 00:40:08,822 That meant we needed to map the site to see how much damage was done. 553 00:40:15,864 --> 00:40:22,302 One of the most valuable assets that we have in our research arsenal 554 00:40:22,337 --> 00:40:26,840 is our small un-personned submarine, and it's fully autonomous meaning 555 00:40:26,875 --> 00:40:29,509 we have to plan its missions and we hit 556 00:40:29,544 --> 00:40:33,179 go and she dives below the surface off on its own 557 00:40:33,215 --> 00:40:36,950 to navigate through this mysterious subsea world. 558 00:40:36,985 --> 00:40:38,818 We're painting a three-dimensional picture 559 00:40:38,854 --> 00:40:41,020 very high resolution and precision, 560 00:40:41,056 --> 00:40:46,559 so we can get every little bump and divot of the seabed. 561 00:40:49,831 --> 00:40:53,366 ART: We started going through, piece by piece in every portion 562 00:40:53,401 --> 00:40:58,204 of the Redbird Reef site and looking at the changes before and after Sandy. 563 00:40:58,240 --> 00:41:00,373 Yeah look at the scour around some of these subway cars. 564 00:41:00,408 --> 00:41:05,578 We could see whole areas where the surface sand was pulled and eroded away. 565 00:41:07,516 --> 00:41:12,719 It became very obvious to us that epic things had happened on this, the seabed, 566 00:41:12,754 --> 00:41:16,222 because there were suddenly areas where subway cars 567 00:41:16,258 --> 00:41:21,594 were missing or they had been flipped on their sides or broken apart. 568 00:41:21,630 --> 00:41:24,364 There were subway cars that were just rotated, 569 00:41:24,399 --> 00:41:29,869 shifted, moved or completely obliterated. 570 00:41:29,905 --> 00:41:33,940 CARTER: We're talking about subway cars that weigh on the order of 75,000 pounds, 571 00:41:33,975 --> 00:41:37,510 just eviscerated by the currents that were occurring down there 572 00:41:37,546 --> 00:41:39,345 which really shows you the power 573 00:41:39,381 --> 00:41:43,049 and the amount of energy that's being imparted on the sea floor. 574 00:41:49,758 --> 00:41:54,427 ART: The largest and perhaps most impressive structure in the artificial 575 00:41:54,462 --> 00:42:00,166 reef system is the former ex-USS Arthur Radford. 576 00:42:00,202 --> 00:42:03,736 It was a Navy destroyer and it's the largest artificial reef object 577 00:42:03,772 --> 00:42:09,242 north of Florida anywhere on the east coast, more than 500 feet long. 578 00:42:09,277 --> 00:42:14,480 But when we went out and then surveyed over the Radford that's when it just clearly 579 00:42:14,516 --> 00:42:18,585 showed that this storm took things to a whole 'nother level. 580 00:42:20,622 --> 00:42:26,392 It's in deeper water depths and it's a much larger structure. 581 00:42:26,428 --> 00:42:32,465 We knew from before the storm that the Radford was in three parts. 582 00:42:32,500 --> 00:42:35,268 When we got out there and mapped it after Sandy 583 00:42:35,303 --> 00:42:39,606 it was just jaw-dropping to realize that the entire center section 584 00:42:39,641 --> 00:42:42,742 was picked up and rotated more than 30 degrees. 585 00:42:43,612 --> 00:42:46,346 We're talking about an enormous Navy destroyer that's moved 586 00:42:46,381 --> 00:42:50,884 more than 200 feet in 120 feet of water. 587 00:42:50,919 --> 00:42:53,620 It really shocked me, it really surprised me to see 588 00:42:53,655 --> 00:42:57,790 how much change there was to the seabed. 589 00:42:57,826 --> 00:43:01,928 I'd never seen it over that sort of scale and magnitude. 590 00:43:03,398 --> 00:43:07,634 We now know how much of an effect a storm has on the sea floor. 591 00:43:07,669 --> 00:43:11,070 But that interaction goes both ways. 592 00:43:11,106 --> 00:43:14,140 Water movement is affected by the shape of the sea floor 593 00:43:14,175 --> 00:43:16,309 as the storm moves towards land 594 00:43:16,344 --> 00:43:20,046 and those initial conditions are what determine how storm surge behaves, 595 00:43:20,081 --> 00:43:24,350 and ultimately, where and how it hits. That's crucial information. 596 00:43:28,690 --> 00:43:32,325 You know in hindsight, we could have lost everything. 597 00:43:32,360 --> 00:43:35,094 Hundreds of thousands of dollars' worth of equipment. 598 00:43:35,130 --> 00:43:38,464 But if we didn't risk that loss, we wouldn't have the gold mine of information 599 00:43:38,500 --> 00:43:41,668 about how the sea floor changes during a storm. 600 00:43:41,703 --> 00:43:46,105 We have the technology now to monitor these changes as each storm passes. 601 00:43:48,476 --> 00:43:52,078 We can feed that into our storm surge models, 602 00:43:52,113 --> 00:43:56,382 and predict where and how the next storm surge is going to occur. 603 00:43:57,152 --> 00:44:00,286 There are gonna be more storms, and there are going to be more intense storms. 604 00:44:00,322 --> 00:44:06,659 And we need every bit of information we can to help combat storm surge losses. 605 00:44:06,695 --> 00:44:09,295 Here for the first time in the history of hurricanes, 606 00:44:09,331 --> 00:44:11,064 we might finally have a weapon that helps 607 00:44:11,099 --> 00:44:14,334 us fight the worst of what those hurricanes are throwing at us. 608 00:44:23,545 --> 00:44:24,310 Captioned by SubTitlePro LLC