53
Storm-Tide Elevations Caused by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16, 1995 By Heriberto Torres-Sierra U.S. GEOLOGICAL SURVEY Open-File Report 96-440 Prepared in cooperation with the FEDERAL EMERGENCY MANAGEMENT AGENCY and the U.S. ARMY CORPS OF ENGINEERS San Juan, Puerto Rico 1998

Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

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Page 1: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Storm-Tide Elevations Caused by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16, 1995

By Heriberto Torres-Sierra

U.S. GEOLOGICAL SURVEY

Open-File Report 96-440

Prepared in cooperation with the

FEDERAL EMERGENCY MANAGEMENT AGENCY

and the U.S. ARMY CORPS OF ENGINEERS

San Juan, Puerto Rico 1998

Page 2: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, Secretary

U.S. GEOLOGICAL SURVEYMark Schaefer, Acting Director

For additional information write to:

District Chief U.S. Geological Survey GSA Center, Suite 400-15 651 Federal Drive Guaynabo, Puerto Rico 00965

Copies of this report can be purchased from:

U.S. Geological Survey Branch of Information Services Box 25286 Denver, CO 80225-0286

Page 3: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

CONTENTS

Abstract.................................................................................................................................................................. 1

Introduction........................................................................................................................................................... 1

Path of Hurricane Marilyn..................................................................................................................................... 2

Effects of Hurricane Marilyn................................................................................................................................. 4

Vertical Datum....................................................................................................................................................... 9

Storm-Tide Elevations........................................................................................................................................... 9

Summary................................................................................................................................................................ 12

Selected References............................................................................................................................................... 12

Appendix Hurricane Categories........................................................................................................................... 13

Glossary................................................................................................................................................................. 15

FIGURES

1-3. Maps showing:

1. Track of Hurricane Marilyn across the Atlantic Ocean, September 1995.................................................... 3

2. Track of Hurricane Marilyn across the islands of the Caribbean Sea,September 1995......................................................................................................................................... 5

3. Study area and storm-tide elevations resulting from the passageof Hurricane Marilyn at selected locations in the U.S. Virgin Islands...................................................... 7

4. Graphs showing recorded storm-tide elevations resulting from the passage ofHurricane Marilyn at the NOS tidal gage stations in the U.S. Virgin Islands............................................. 8

5. Measured profiles defining the storm-tide elevations resulting from the passageof Hurricane Marilyn at selected locations in the U.S. Virgin Islands........................................................ 10

TABLES

1. Chronology of major hurricanes impacting U.S. Virgin Islands from 1867 through 1995.............................. 2

2. Description of high-water marks...................................................................................................................... 16

3. Description of reference marks and bench marks ............................................................................................ 23

Contents

Page 4: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

PLATES

[Plates are at end of report]

Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document the storm tides caused by Hurricane Marilyn, September 15-16, 1995:

1. Frederiksted2. Belvedere3. Salt River Bay4. La Grande Princesse5. Christiansted Harbor6. Tague Bay7. Robin Bay8. Great Pond9. Halfpenny Bay10. Container Port11. Cyril King Airport12. St. Thomas Harbor13. Cruz Bay14. Rendezvous Bay15. Coral Harbor16. Johnson Bay

CONVERSION FACTORS AND ACRONYMS

Multiply

inch

foot

mile

mile per houracre

By

25.4

0.3048

1.6091.609

0.4047

To obtain

millimeter

meter

kilometerkilometer per hour

hectare

Acronyms used in this report:

FEMA Federal Emergency Management Agency

NOS National Ocean Service

NWS National Weather Service

USAGE United States Army Corps of Engineers

USCGS United States Coastal and Geodetic Survey

USGS United States Geological Survey

USVI United States Virgin Islands

IV Contents

Page 5: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Storm-Tide Elevations Caused by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16, 1995

By Heriberto Torres-Sierra

Abstract

Hurricane Marilyn impacted the U.S. Virgin Islands with maximum reported winds gusting to near 130 miles per hour from late at night on September 15 to early morning on September 16, 1995. As much as 11.40 inches of rain fell on the island of St. Croix near the airport on September 15. Most of the hurricane damage in the U.S. Virgin Islands resulted from high wind velocities and tidal flooding along coastal areas. At least nine people died and thousands were left homeless as a result of the hurricane. St. Thomas was particularly hard hit; 80 percent of the buildings were damaged or destroyed, six people were killed, and thousands were left homeless.

High-water marks produced by the storm tide from Hurricane Marilyn during September 15-16, 1995, were identified, described, and level- surveyed along the populated coastal areas of Charlotte Amalie in St. Thomas, Cruz Bay and Coral Bay in St. John, Frederiksted and Christiansted in St. Croix, and at other selected areas along the islands' coasts. One hundred seventy-three high-water marks are presented in tabular form listing plate name, mark number, location, latitude, longitude, type and quality of the mark, and high-water mark elevation. Profiles defining the surveyed storm-tide elevation, the inland extent of coastal flooding, and the ground elevation at selected coastal areas are also presented in this report. High-water levels ranged from about 11.4 feet above mean sea level at Estate La Grande Princesse in St. Croix to 3.1 feet above mean sea level at Limestone Bay, Estate Krausses Lagune in St. Croix.

INTRODUCTION

Hurricane Marilyn, a Category 2 hurricane (Saffir-Simpson scale), made landfall on the islands of St. Croix and St. Thomas, U.S. Virgin Islands (USVI) during September 15-16, 1995. The hurricane, with maximum reported winds gusting to near 130 miles per hour, left a path of devastation throughout the islands. This hurricane was one of the most destructive of the nine major hurricanes that have hit the area since the late 1800's (table 1). As much as 11.40 inches of rain fell on St. Croix on September 15. Although some river flooding occurred in low-lying areas near guts (dry stream courses), most of the flooding resulted from tidal flooding along the islands' coasts. The maximum storm-tide elevation measured was 11.4 feet above mean sea level on St. Croix. On St. John and St. Thomas, the maximum storm-tide elevations measured were 11.3 and 10.9 feet above mean sea level, respectively. Damage from Hurricane Marilyn was severe throughout the USVI, particularly on St. Thomas, where about 80 percent of the buildings were damaged or destroyed. Nine people died, several were injured, and thousands were left homeless as a result of the hurricane.

The U.S. Geological Survey (USGS), in cooperation with the Federal Emergency Management Agency (FEMA) and the U.S. Army Corps of Engineers (USAGE), collected data in the USVI on the storm-tide elevations caused by Hurricane Marilyn. This report presents a brief description of the hurricane and its pathway, the effects of the hurricane, the storm-tide elevation data obtained at 173 sites, and a series of maps showing the location and elevation of high-water marks, bench marks, and reference marks. The data presented may be useful for flood-insurance purposes and in guiding future development in these areas.

Introduction

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Table 1. Chronology of major hurricanes impacting U.S. Virgin Islands from 1867 through 1995

Date Area affected Remarks

October 29, 1867

October 9, 1916

St. Thomas

St. Thomas

August 28-29, 1924 St. Thomas, St. Croix

September 12-14, 1928 St. Croix

August 6-7, 1955 St. Thomas

August 11-12, 1956 St. Croix

August 29-31, 1979 St. Thomas, St. John, St. Croix

September 18, 1989 St. Thomas, St. John, St. Croix

September 15-16, 1995 St. Thomas, St. John, St. Croix

Hurricane. Maximum wind speed, 170 miles per hour; lowest barometric pressure, 27.95 inches. Deaths, 600.

Hurricane. Wind gusts, 160 miles per hour; lowest barometric pressure, 28.10 inches. Charlotte Amalie, Frenchtown, and Lindbergh Bay areas severely flooded.

Hurricane. Maximum wind speed, 143 miles per hour; maximum 24-hour rainfall, 5.7 inches on St. Croix; and lowest barometric pressure, 28.56 inches. Numerous lives lost.

Hurricane. Maximum wind speed, 130 miles per hour in St. Thomas; maximum 3-day rainfall, 16.6 inches on Christiansted; lowest barometric pressure, 27.50 inches. Substantial loss of life and extensive damage.

Hurricane Connie. Maximum wind speed, 71 miles per hour; maximum 24-hour rainfall, 7.0 inches on Charlotte Amalie. Deaths, 3.

Hurricane Betsy. Maximum wind speed, 86 miles per hour; maximum 24-hour rainfall, 4.7 inches on St. Croix. Damage, $30,000.

Hurricane David. Maximum wind speed, 54 miles per hour in St. Croix; 3-day rainfall, 15 inches.

Hurricane Hugo. Maximum wind speed, 140 miles per hour. Deaths, 3; 20,000 people homeless; damage, $1.3 billion.

Hurricane Marilyn. Maximum wind speed, 105 miles per hour. Deaths, 9; thousands people homeless; damage, $2 billion; about 80 percent of buildings damaged or destroyed in St. Thomas.

The author greatly acknowledges the following personnel for their assistance in making this study possible: Iris Correa and Dan Deegan of the FEMA; Deborah Peterson, Andrew Geller, Dennis Kraus, Mel Beliky, and Roberto Cortes, of the USAGE; and Rafael Mqjica of the National Weather Service (NWS), National Oceanic and Atmospheric Administration. Also, cooperation of owners who allowed access to their properties to obtain high-water mark elevations is greatly appreciated.

PATH OF HURRICANE MARILYN

Hurricane Marilyn developed from Tropical Depression 15 that originated over the west-central Atlantic Ocean on September 12 at 6 p.m., Atlantic standard time, about 470 miles east of Barbados (11.9 degrees N. latitude and 52.6 degrees W. longitude; fig. 1). The depression traveled west at about 25 miles per hour (mi/hr) and became Tropical Storm Marilyn on September 13. On September 14 at 2 a.m., Tropical Storm Marilyn, located at about 40 miles east of

2 Storm-Tide Elevations Casued by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16,1995

Page 7: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

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Barbados, was upgraded to hurricane status with maximum sustained winds of 75 miles per hour. Marilyn, now a Category 1 hurricane (Saffir-Simpson scale), continued travelling in a west-northwesterly direction with its center passing at about 20 miles northeast of Barbados on September 14 at about 5 a.m. A hurricane watch was issued on September 14 for the USVI at 8 a.m. and then for Puerto Rico at 11 a.m., when the center of Hurricane Marilyn was located about 40 miles east of Martinique. Marilyn, with maximum sustained winds of 80 miles per hour and a minimum barometric pressure of 983 millibars (29.03 inches of mercury) moved in a generally northwesterly direction and passed just northeast of Martinique, making landfall in Dominica at 5 p.m., and then passed to the southwest of Guadeloupe entering the Caribbean Sea (fig. 2). A hurricane warning was issued for the USVI and Puerto Rico when Hurricane Marilyn entered the Caribbean Sea. Hurricane Marilyn continued moving northwest at nearly 15 miles per hour on Friday, September 15, and at 2 a.m. the maximum sustained winds increased to 85 miles per hour and the barometric pressure dropped to 978 millibars (28.88 inches of mercury). On September 15, at 8 a.m. the maximum sustained winds increased to 90 miles per hour and the hurricane was centered about 95 miles east southeast of St. Croix, USVI. By 11 a.m., Hurricane Marilyn's forward motion decreased to 10 miles per hour and the storm strengthened to a Category 2 hurricane with maximum sustained winds of 100 miles per hour and a minimum central pressure of 972 millibars (28.70 inches of mercury). At 5 p.m., when the center of Marilyn was near the southeast coast of St. Croix, an amateur radio operator from St. Croix reported wind gusts of 97 miles per hour. Shortly before 8 p.m., the center of Hurricane Marilyn passed over the eastern portion of St. Croix. A peak gust of 127 miles per hour was reported by an amateur radio operator during the passage of the hurricane. Hurricane Marilyn slowly intensified as it continued moving northwest between 8 to 10 miles per hour. On September 16, between 1 a.m. and 2 a.m., with maximum sustained winds of 105 miles per hour and a barometric pressure of 960 millibars (28.35 inches of mercury), the eye of Hurricane Marilyn extended from the western coast of St. Thomas, USVI to the eastern coast of Puerto Rico's

offshore island of Culebra. On September 16, by 5 a.m. the center of Hurricane Marilyn was located about 45 miles east-northeast of San Juan, Puerto Rico, with sustained winds near 110 miles per hour. By noon, Hurricane Marilyn, with maximum sustained winds of 115 miles per hour (Category 3) and a minimum barometric pressure of 952 millibars (28.11 inches of mercury), was about 70 miles north- northwest of San Juan. At this time Marilyn was moving away from the area and the hurricane warnings for the USVI and Puerto Rico were downgraded to tropical storm warnings. The tropical storm warnings were discontinued for the USVI and Puerto Rico on September 16 at 5 p.m., when the center of Marilyn was about 125 miles north- northwest of San Juan. Over the next 5 days, the hurricane continued its north to northeast movement and lost strength over the open waters of the Atlantic Ocean. By September 21, Marilyn was downgraded to a tropical storm. On September 22, Marilyn was reclassified as an extratropical storm.

EFFECTS OF HURRICANE MARILYN

Rainfall data for the USVI are scarce because many recording rain gages were destroyed or rendered inoperative by strong winds during the passage of the hurricane. The limited rainfall data for the USVI indicate that the south coast of St. Croix, in the vicinity of Alexander Hamilton Airport, received as much as 12.96 inches of rain during September 15-16, 1995 (data were collected at USGS stream and rain gage station 50334500 and are not considered official by the NWS). Approximately 11.40 inches of this total amount fell during September 15. Another USGS rain gage (50252000) in northern St. Thomas, recorded 3.48 inches of rain during September 15 and 5.09 inches of rain during September 16. No data were recovered from recording rain gages on St. John. Although some riverine flooding occurred in areas near guts, most of the flood damage in the USVI occurred in coastal areas and was the result of tidal flooding. High water levels resulting from a combination of normal (predicted) tide, storm surge, and wave action ranged from 11.4 feet above mean sea level at Estate La Grande Princesse, St. Croix to 3.1

4 Storm-Tide Elevations Casued by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16,1995

Page 9: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

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Page 10: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

feet above mean sea level at Limestone Bay, Estate Krausses Lagune, St. Croix (fig. 3). The elevation of the storm tide at Limestone Bay, St. Croix and at St. Thomas Harbor was also recorded by the National Ocean Service (NOS) tidal gage stations in the USVI (figs. 3 and 4). As shown in figure 4, the high water elevation at the St. Croix tidal gage peaked shortly after midnight and the high water elevation at the St. Thomas gage peaked near 4:00 a.m., Atlantic standard time.

Hurricane Marilyn left a wake of devastation and desolation in its pathway throughout the USVI. At least nine people died and thousands were left homeless as a result of the hurricane. Emergency housing, medical attention, food, and clothing were provided to thousands of people. Damage was extensive and has been estimated by FEMA at about $2 billion (The Daily News, St. Thomas, USVI, October 25, 1995). More than $1 billion of this amount is related to damage sustained by private and public housing. Losses directly related to the tourism industry were estimated at about $475 million.

Damage was more severe on St. Thomas, where about 80 percent of the buildings were damaged or destroyed and thousands of utility poles were downed, leaving the island without power, public-water supply, or communications. The St. Thomas Hospital received extensive damage, particularly in the medical supply warehouse where all supplies were lost or rendered unusable. Hospital patients and people severely injured by Hurricane Marilyn were airlifted by helicopter to a hospital in San Juan, Puerto Rico. The control tower at the Cyril E. King (formerly Harry S. Truman) Airport in St. Thomas was extensively damaged and the runaway was covered with debris, making impossible the arrival of military and emergency flights from the mainland of the United States during the first hours after the passage of the Hurricane Marilyn. The production and distribution of desalinated water was interrupted during several days due to damage to the desalination plant and to two 1- million-gallon water storage tanks. Private cisterns were contaminated by debris, raw sewage and/or sea water from tidal flooding. The sewage treatment plants and pumping stations were also inoperable. A large number of private vehicles and hundreds of boats were

damaged or completely destroyed. All marina and dock facilities were damaged or destroyed by high winds and severe tidal flooding. Coastal flooding occurred in beach and low-lying areas generally where land-surface elevations are less than 8 feet above mean sea level. In some of these areas, sand was transported from the beach and deposited in overwash fans and in other low-lying areas.

Among the areas of St. Thomas most affected by coastal flooding are the Charlotte Amalie Historic District, Frenchtown, and Crown Bay. Private and public housing, hotels, restaurants, stores, and offices within these areas sustained moderate to severe damage. The environmental impact of Hurricane Marilyn was also significant on St. Thomas, where high winds toppled and stripped leaves from trees and bushes, and saltwater burned grass and killed bushes. Six deaths on St. Thomas were directly attributed to the hurricane.

St. Croix and St. John also received substantial storm damage. On St. Croix, the developed coastal areas of Christiansted and Frederiksted were severely affected by high winds and extensive tidal flooding. About 25 percent of the buildings suffered structural damage or were destroyed. Most of the hotels, restaurants, businesses, and private offices in the Christiansted Historic District were affected by coastal flooding. Some schools suffered water damage. All public utility services were disrupted, mainly as a consequence of downed utility poles and wires and damaged or destroyed generators and transformers. The St. Croix Marina was damaged and more than 100 boats were damaged or destroyed along the island's coasts. The manufacturing industry and the agricultural sector were also hard hit by the hurricane. The official death toll from Hurricane Marilyn on St. Croix was reported as two. On St. John, early damage reports estimated that from 25 to 35 percent of all buildings were damaged. Some government buildings sustained major damage. The police station and two clinics were closed due to structural or water damage, or both. The island was left without power when the power supply from St. Thomas to St. John was interrupted by the strong winds. The populated coastal areas of Cruz Bay, on the islands's west coast, and Coral Bay, on the island's east coast, were moderately

6 Storm-Tide Elevations Casued by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16,1995

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18°25'

18°20"

65W 64°55'

\64°5CT

I

64-45' 64°40'

ATLANTIC OCEAN

6.6(36) <3-j 7B <12>

10.9(31) 100 <2>

St. Thomas St. John

CARIBBEAN SEA 0 1 2 KILOMETERS

0 1 2 MILES

64°50' 64°45' 64"40' 64°35'

17°45'

67(24) 9.5(26)

5.8 (81)

8.1 (74)

Limestone Bay

3.1 (75) St. Croix

17"40'CARIBBEAN SEA

CARIBBEAN

11.4(28)

0 1 2 KILOMETERS

0 1 2 MILES

EXPLANATION

3 1 (75) STORM-TIDE ELEVATION, IN FEETABOVE SEA LEVEL AND HIGH-WATER MARK NUMBER IN PARENTHESIS

COASTAL AREA SURVEYED

A National Ocean Service Tidal Gage

TOWN OR ESTATE

Figure 3. Study area and storm-tide elevations resulting from the passage of Hurricane Marilyn at selected locations in the U.S. Virgin Islands.

Effects of Hurricane Marilyn 7

Page 12: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

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i i i i r i r CHARLOTTE AMALIE,

ST. THOMAS, USVI - RECORDED------ CHARLOTTE AMALIE,

ST. THOMAS, USVI - PREDICTED

J__I I I I I I I I__I

6 12 18 24 6 12 18 24 6 12 18 24 6 12 18 24 6 12 18 24 6 12 18 24I ! I i I

9-13-1995 9-14-1995 9-15-1995 9-16-1995 9-17-1995 9-18-1995

24-HOUR TIME

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9-13-1995 9-14-1995 9-15-1995 9-16-1995 9-17-1995 9-18-1995

24-HOUR TIME

Figure 4. Recorded storm-tide elevations resulting from the passage of Hurricane Marilyn at the NOS tidal gage stations in the U.S. Virgin Islands (modified from National Oceanic and Atmospheric Administrations, 1996).

8 Storm-Tide Elevations Casued by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16,1995

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affected by coastal flooding. Many boats were damaged or destroyed, particularly those docked in marinas along the southern coast. USVI government officials reported one person killed and three injured during Hurricane Marilyn.

VERTICAL DATUM

The vertical datum used for this study is local mean sea level derived by the U.S. Coastal and Geodetic Survey (USCGS), which is now named the National Ocean Service (NOS). The local mean sea level, which varies with time and distance along the coastline, is the average, over selected time periods, of the midpoints in elevation between mean higher-high water (MHHW) and mean lower-low water (MLLW). The mean tide level (MTL) established by the U.S. Department of Commerce, NOS, is physically the same as the local mean sea level of the USCGS, but is referenced to MLLW datum. That is, the MTL is the elevation of the local mean sea level above the MLLW. The MLLW datum, also called the chart datum, is used by NOS to minimize the reporting of negative values in predicting tide elevations. The entire study area has bench marks established by the NOS, the USAGE, and the USGS based on local mean sea level datum.

STORM-TIDE ELEVATIONS

Immediately after the storm, the USGS sent crews to the coastal regions to determine the maximum water-surface elevations caused by the storm tide. High-water marks were located, identified and tied to mean sea level datum by way of level- surveying. The elevation of each high-water mark was plotted on USAGE maps prepared from aerial photographs (plates 1-16). Discrepancies between adjacent high-water marks result from the effects of wave action, the effects of lag between occurrence of high water outside or both, and the filling of rooms of houses where inside marks were obtained. Further evaluation of local inconsistencies between adjacent elevations of high-water marks is beyond the scope of this study. A description of each mark that included a detailed description of its location, the type of mark (seedline, washline, driftline, or stainline), and an assessment of the quality of the mark was prepared.

The quality of each mark was assigned a category for interpretation of the storm-tide elevation as follows:

* Excellent A level, extremely well-defined line of densely accumulated fine debris (or a distinct stain). Reliable to + 0.05 foot.

* Good A level, well-defined line of densely accumulated fine debris (or a distinct stain). Reliable to ±0.10 foot.

* Fair A level, but less distinct band of fine or coarse debris (or stain). Reliable to within + 0.25 foot.

* Poor A poorly defined band of sparsely accumulated coarse debris that may undulate due to surface wave action. Other examples include a discontinuous scatter of coarse debris on a structure, a coarse ground line of heavy-vegetative drift, or debris hanging in the branches of a tree. Uncertainty in true elevation is greater than about 0.25 foot.

The best high-water marks for determining the maximum still-water storm-tide elevation generally were found inside buildings or other locations where wave action was dampened. Outside marks range from fair to poor quality because of wave action or, in the case of debris lines, distortion by high winds that followed the storm tide. Fifty-three percent of the one hundred seventy-three high-water marks were rated poor, twenty-nine percent were considered fair, ten percent were judged to be excellent, and eight percent good.

After each storm-tide high-water mark was located and assigned a quality rating, the elevation of the mark was determined. Most elevations were determined by using conventional leveling equipment and vertical control stations (bench marks) established by the NOS and the USGS. Descriptions of the high- water marks are given in table 2 (see page 16). Descriptions of the survey marks (reference marks and bench marks) used to determine the elevations of the high-water marks are given in table 3 (see page 23) and are shown on the USAGE maps (plates 1-16, at end of report).

Profiles defining the storm-tide elevation, the inland extent of coastal flooding, and the ground elevation were surveyed at selected coastal areas on each island (fig. 5). In St. Thomas, a profile was

Storm-Tide Elevations

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15

105

0-5

-10-15-20-25

-30

Crown Bay, St. Thomas, USVI 6 4 ft @ HWM no 37

100 200 300 400 500 600 700

15

10

b

0 -5

-10

-15

-20-25

-in

St. Thomas Harbor, St Thomas, USVI @ 2 ft @ HWM no 18

" ___

-

L 1 .

UJ 0 100 200 300 400 500 600 700 800 900CDoc o

St. Thomas

1510

5

0-5

-10

-15-20

-25-30

15

10

5

0-5

-10

-15-20

-25-30

100

Cruz Bay, St, John, USVI4.0 ft @ HWM no. 17

200 300 400 500 600

Coral Harbor, St John, USVI5.2 ft @ HWM no. 26

100 200 300 400 500 600 700 800 900 1000

DISTANCE, IN FEET

St. John

Figure 5. Measured profiles defining the storm-tide elevations resulting from the passage of Hurricane Marilyn at selected locations in the U.S. Virgin Islands.

10 Storm-Tide Elevations Casued by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16,1995

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100 200 300 400

10

b

-5

-10

-15

-20-25

__ __ Cristiansted, St. Croix, USVI c » « «, ,_,>.». ___ 6.8 ft @ HWM no. 45

I

I '/ ^^^ / *^ y -.

-100 400

It) 10

-5-10

-15

-20

-25 ,ir\

Altona Lagoon, St. Croix, USVI6.4 ft @ HWM no. 65

- " Ns- */ "v*^^^.^ ^^<

v~-

i i . i . i , i

St. Croix

EXPLANATION

Storm-tide elevation

Ground elevation----- Mean sea level

- , . _ Lagoon water level

HWM High-water mark

Figure 5. Measured profiles defining the storm-tide elevations resulting from the passage of Hurricane Marilyn at selected locations in the U.S. Virgin Islands Continued.

Storm-Tide Elevations 11

Page 16: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

measured in the St. Thomas Harbor area at Charlotte Amalie and in the Crown Bay area. Two profiles were measured in St. John: one in the Cruz Bay area and another in the Coral Bay area. Three profiles were measured in St. Croix: one profile was measured in Frederiksted, one in Christiansted, and one in the Altona Lagoon Beach area. These profiles were surveyed normal to the coastline. The approximate depth of flooding at any point along the inundated area can be estimated by subtracting the ground elevation from the storm-tide elevation. The location of these selected profiles are presented on figure 5.

SUMMARY

During September 15 and 16, 1995, Hurricane Marilyn caused severe damage in the islands of St. Croix and St. Thomas, USVI. The hurricane, with sustained wind speed near 105 miles per hour, left a path of devastation throughout the islands. As much as 11.40 inches of rain fell on St. Croix on September 15. Although some damage resulted from river flooding, most of the hurricane damage in the USVI resulted from high wind velocities and storm-surge flooding along the coastal areas. Damage was more severe on St. Thomas, were about 80 percent of the buildings were damaged or destroyed, six people were killed, and thousands were left homeless.

High-water marks produced by the storm surge from Hurricane Marilyn were identified, described, and level-surveyed along the most affected developed coastal areas. One hundred seventy-three high-water marks are described in this report. High-water marks, as well as survey marks, are plotted on 16 USAGE maps prepared from aerial photographs.

Storm-tide elevations are presented graphically and in tabular form. Elevations of the storm tide above the local mean sea level ranged from about 11.4 feet at Estate La Grande Princesse in St. Croix to 3.1 feet at Limestone Bay, Estate Krausses Lagune in St. Croix.

SELECTED REFERENCES

Colon-Dieppa, Eloy, Torres-Sierra, Heriberto, and Ortiz, Jorge, 1991, U.S. Virgin Islands floods and droughts - National Water Summary 1988-89: U.S. Geological Survey Water-Supply Paper 2375, p. 521-526.

Federal Emergency Management Agency, 1995, U.S. Virgin Islands Disaster Report on Hurricane Marilyn, September 15-17, 1995 - Synopsis, FEMA-1067-DR-VI: Federal Emergency Management Agency, 7 p.

Komar, P.O. (editor), 1983, CRC Handbook of coastal processes and erosion, CRC Press, Inc., Boca Raton, Florida, 305 p.

National Oceanic and Atmospheric Administration, 1995, Hurricane Marilyn - Preliminary statement for the U.S. Virgin Islands and Puerto Rico: National Oceanic and Atmospheric Administration, National Weather Service, 5 p.

__1996, Natural disaster survey report - HurricaneMarilyn, September 15-16, 1995: National Oceanic and Atmospheric Administration, National Weather Service, 38 p., 8 appendixes.

St. John Tradewinds, September 25,1995 - October 2, 1995, St. John, USVI, variously paginated.

The Daily News, September 18, 1995, October 21, 1995, October 25, 1995, and October 26, 1995, St. Thomas, USVI, variously paginated.

Torres-Sierra, Heriberto, 1996, Storm-tide elevations caused by Hurricane Hugo on the U.S. Virgin Islands and Puerto Rico, September 18, 1989: U.S. Geological Survey Open-File Report 92-87, 44 p.

U.S. Army Corps of Engineers, 1975, Flood plain information, tidal areas, St. Thomas, St. Croix, and St. John, U.S. Virgin Islands: Jacksonville District, 34 p.

__1977, Flood hazard information, St. Thomas,U.S. Virgin Islands, Demarara (Frenchtown): Jacksonville District, 13 p.

12 Storm-Tide Elevations Casued by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16,1995

Page 17: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

APPENDIX

Appendix 13

Page 18: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

APPENDIX 1. HURRICANE CATEGORIES

To relate hurricane intensity to damage potential, the National Hurricane Center uses the Saffir/Simpson scale which assigns storms to five categories. Category 1 is a minimum hurricane; category 5 is the worst case.

floating debris. Low-lying escape routes inland cut by rising water 3 to 5 hours before hurricane center arrives. Evacuation of low-lying residences within several blocks of shoreline possibly required. Practically all poorly constructed sings blown down.

CATEGORY 1 - Sustained winds of 74 to 95 miles per hour and/or storm surge 4 to 5 feet above normal. Low-lying coastal roads inundated. Minor pier damage, some small craft in exposed anchorages torn from moorings. Damage primarily to shrubbery, trees, foliage, and unanchored mobile homes. Some damage to poorly constructed signs.

CATEGORY 2 - Sustained winds of 96 to 110 miles per hour and/or storm surge 6 to 8 feet above normal. Coastal roads and low-lying island areas inundated. Considerable damage to shrubbery and tree foliage; some trees blown down. Major damage to exposed mobile homes and poorly constructed signs. Some damage to roofing materials of buildings: some window and door damage. Considerable damage to piers. Marinas flooded. Small craft in unprotected anchoraged torn from moorings.

CATEGORY 3 - Sustained winds of 111 to 130 miles per hour and/or storm surge 9 to 12 feet above normal. Serious flooding at coast and flat terrain 5 feet or less above sea level flooded inland some miles. Many smaller structures near coast destroyed; larger structures near coast damaged by battering waves and

CATEGORY 4 - Sustained winds 131 to 155 miles per hour and/or storm surge 13 to 18 feet above normal. Flat terrain 10 feet or less above sea level flooded inland some miles. Low-lying escape routes inland cut by rising water 3 to 5 hours before hurricane center arrives. Major damage to lower floors of structures near shore. Major erosion on beaches. Massive evacuation of all residences within 500 yards of shore may be required, and of single-story residences on low ground within 2 miles of shore. Extensive damage to structures. Complete destruction of mobile homes.

CATEGORY 5 - Sustained winds greater than 155 miles per hour and/or storm surge greater than 18 feet above normal. Major damage to lower floors of all structures less than 15 feet above sea level within 500 yards of shore. Low-lying escape routes inland cut by rising water 3 to 5 hours before hurricane center arrives. Massive evacuation of residential areas on low ground within 5 to 10 miles of shore possibly required. Shrubs and trees blown down; considerable damage to roofs of building; and signs down. Some complete building failures.

14 Storm-Tide Elevations Casued by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16,1995

Page 19: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

GLOSSARY

Advisory. A method for disseminating hurricane and storm data to the public every 6 hours. Small craft warnings are released as necessary.

Hurricane Watch. The watch covers a specified area

and indicates that a hurricane may threaten the area,

but is not imminent.

Tropical Disturbance. A moving area of

thunderstorms in the tropics.

Tropical Wave. A westward moving trough of low pressure embedded in the deep easterly current. It tends to organize low level circulation and may travel thousands of miles with little change in shape, sometimes producing significant shower and thundershower activity along its path.

Tropical Depression. An area of low pressure, rotary circulation of clouds and winds to 38 miles per hour.

Tropical Storm. Counterclockwise circulation of clouds and winds 39 to 73 miles per hour. The storm is assigned a name.

Hurricane. When a tropical storm reaches winds of 74 miles per hour or more, it is classified as hurricane.

Hurricane Warning. A hurricane is expected to

strike your area within 24 hours or less with: a)

sustained winds of 74 miles per hour (64 knots) or

higher, and b) dangerously high water or a

combination of dangerously high water and

exceptionally high waves.

Hurricane Center or "Eye". The relatively calm

area near the center of the storm which can last from

several minutes to an hour or more, but it sometimes

ends suddenly as winds return from the opposite direction, often with greater force. Do not go out in the "eye" of the storm as winds can increase to hurricane

force within seconds.

Storm Surge/Tide. The strong winds associated with

Hurricanes and Tropical Storms cause the sea level to

rise above normal tidal heights, with giant wind-

driven waves and strong unpredictable currents, sometimes covering 50 miles.

Glossary 15

Page 20: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

- Ta

ble

2.

Des

crip

tion

of h

igh-

wat

er m

arks

V) torm-Tide

Elevation

s

O to 0) 1 o- I c 1 (D to f 0 (D C

0) (2 5' 5T to a. 0) W (D

1 V o» _i (0 <o Ul

Plat

e nu

mbe

r

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 3 3 3 4

Plat

e na

me

Fred

erik

sted

Fred

erik

sted

Fred

erik

sted

Fred

erik

sted

Fred

erik

sted

Fred

erik

sted

Fred

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sted

Fred

erik

sted

Fred

erik

sted

Fred

erik

sted

Fred

erik

sted

Fred

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sted

Fred

erik

sted

Fred

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sted

Fred

erik

sted

Fred

erik

sted

Fred

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sted

Fred

erik

sted

Fred

erik

sted

Fred

erik

sted

Fred

erik

sted

Bel

vede

re

Bel

vede

re

Salt

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er B

ay

Salt

Riv

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ay

Salt

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er B

ay

La

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nde

Prin

ces s

e

Hig

h-w

ater

m

ark

num

ber

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

Loca

tion

(Est

ate)

St.

Hes

selb

erg

Hes

selb

erg

Hes

selb

erg

Hes

selb

erg

Two

Bro

ther

s

Two

Bro

ther

s

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sted

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sted

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sted

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sted

Fred

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sted

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Fred

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sted

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sted

Fred

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sted

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Fred

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La

Gra

nge

La

Gra

nge

Can

ebay

Rus

t Up

Twis

t

Salt

Riv

er

Salt

Riv

er

Judi

th F

ancy

La

Gra

nde

Prin

ces s

e

Latit

ude

Croi

x, U

.S. V

irgin

Isl

ands

17°4

2'12

"

17°4

2'12

"

17°4

2'13

"

17°4

2'19

"

17°4

2'30

"

17°4

2'34

"

17°4

2'38

"

17°4

2'38

"

17°4

2'43

"

17°4

2'46

"

17°4

2'49

"

17°4

2'51

"

17°4

2'55

"

17°4

2'57

"

17°4

2'58

"

17°4

2'58

"

17°4

3'02

"

17°4

3'05

"

17°4

3'11

"

17°4

3'16

"

17°4

3'23

"

17°4

6'19

"

17°4

6'48

"

17°4

6'56

"

17°4

6'38

"

17°4

6'34

"

17°4

6'04

"

Lon

gitu

de

64°5

3'08

"

64°5

3'10

"

64°5

3'08

"

64°5

3'07

"

64°5

3'04

"

64°5

3'03

"

64°5

3'01

"

64°5

3'02

"

64°5

3'02

"

64°5

3'02

"

64°5

3'01

"

64°5

3'02

"

64°5

3'03

"

64°5

3'03

"

64°5

3'03

"

64°5

3'04

"

64°5

3'03

"

64°5

3'02

"

64°5

3'04

"

64°5

3'05

"

64°5

3'08

"

64°4

8'55

"

64°4

7'40

"

64°4

5'54

"

64°4

5'41

"

64°4

4'33

"

64°4

4'12

"

Type

/qua

lity

of

mar

k

Dri

ftlin

e/fa

ir

Dri

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or

Dri

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poor

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lineV

good

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line/

poor

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e /f

air

Dri

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Dri

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Dri

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Dri

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e/fa

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Dri

ftlin

es/f

air

Dri

ftlin

es/p

oor

Dri

ftlin

es/p

oor

Dri

ftlin

es/p

oor

Dri

ftlin

es/p

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Dri

ftlin

es/p

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Dri

ftlin

es/p

oor

Num

ber o

f hi

gh-w

ater

m

arks 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 3 2 3 3 2 3

Elev

atio

n (f

eet

abov

e m

ean

sea

leve

l)

8.4

5.8

7.1

9.9

10.5 9.6

9.2

9.0

8.4

8.8

8.8

8.7

9.0

6.9

7.0

6.9

7.1

6.3

6.7

7.7

7.2

8.1

5.4

6.7

4.1

9.5

11.4

Page 21: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 2.

D

escr

iptio

n of

hig

h-w

ater

mar

ks C

ontin

ued

Plat

e nu

mbe

r

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5

51

5 a «

5

_j

5 5

Plat

e na

me

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

Chr

istia

nste

d H

arbo

r

Chr

istia

nste

d H

arbo

r

Chr

istia

nste

d H

arbo

r

Chr

istia

nste

d H

arbo

r

Chr

istia

nste

d H

arbo

r

Chr

istia

nste

d H

arbo

r

Chr

istia

nste

d H

arbo

r

Chr

istia

nste

d H

arbo

r

Hig

h-w

ater

m

ark

num

ber

28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

53 54 55

Loca

tion

(Est

ate)

St.

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

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cess

e

La

Gra

nde

Prin

cess

e

La

Gra

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Prin

cess

e

La

Gra

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Prin

cess

e

La

Gra

nde

Prin

cess

e

La

Gra

nde

Prin

cess

e

Litt

le P

rinc

ess

Litt

le P

rinc

ess

Litt

le P

rinc

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Litt

le P

rinc

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Litt

le P

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Gol

den

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k

Gol

den

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k

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t

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sele

t

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t

Ric

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t

Chr

istia

nste

d

Chr

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nste

d

Chr

istia

nste

d

Chr

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nste

d

Chr

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d

Chr

istia

nste

d

Chr

istia

nste

d

Latit

ude

Croi

x, U

.S. V

irgin

Isl

ands

17°4

5'59

"

17°4

5'59

"

17°4

5'58

"

17°4

5'54

"

17°4

5'51

"

17°4

5'50

"

17°4

5'51

"

17°4

5'50

"

17°4

5'47

"

17°4

5'40

"

17°4

5'38

"

17°4

5'28

"

17°4

5'26

"

! 704

5-24

-

17°4

5'23

"

17°4

5'16

"

17°4

5'16

"

17°4

5'11

"

17°4

5'03

"

17°4

5'01

"

17°4

4'56

"

17°4

4'54

"

17°4

4'54

"

17°4

4'54

"

17°4

4'52

"

17°4

4'55

"

17°4

4'56

"

17°4

4'56

"

Long

itude

64°4

4'06

"

6404

4-04

-

64°4

4'03

"

64°4

3'59

"

64°4

3'57

"

64°4

3'55

"

64°4

3'54

"

64°4

3'53

"

64°4

3'42

"

64°4

3'33

"

64°4

3'31

"

64°4

3'21

"

64°4

3'20

"

64°4

3'15

"

64°4

3'14

"

64°4

3'08

"

64°4

3'04

"

64°4

2'54

"

64°4

2'47

"

64°4

2'45

"

64°4

2'39

"

64°4

2'31

"

64°4

2'29

"

64°4

2'26

"

64°4

2'24

"

64°4

2'20

"

64°4

2'19

"

64°4

2'16

"

Type

/qua

lity

of

mar

k

Dri

ftlin

e/fa

ir

Seed

lineV

good

Seed

lineV

good

Dri

ftlin

e/po

or

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nlin

e/go

od

Dri

ftlin

es/p

oor

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nlin

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ir

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lineV

exce

llent

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e/po

or

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lineV

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llent

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nlin

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or

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Dri

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Dri

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line/

fair

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nlin

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Num

ber o

f hi

gh-w

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m

arks 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1

Elev

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n (f

eet

abov

e m

ean

sea

leve

l)

11.4 9.0

9.2

11.0 7.5

8.2

8.7

7.8

7.9

7.8

6.1

7.7

7.1

8.2

8.3

7.7

7.8

6.8

5.2

5.1

5.3

6.0

5.2

5.2

5.7

5.3

5.2

4.9

Page 22: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 2.

D

escr

iptio

n of

hig

h-w

ater

mar

ks C

ontin

ued

1 1

Storm-Tide

Elevatic (0 O so m a. a x c 1 (0 0> 3 s » C w <3 3 E 5T 3 a (0 | 3 1 en -a. o> "» s

Plat

e nu

mbe

r

5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 7 7 8 9 10

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e na

me

Chr

istia

nste

d H

arbo

r

Chr

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d H

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d H

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d H

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Tagu

e B

ay

Tagu

e B

ay

Tagu

e B

ay

Tagu

e B

ay

Rob

in B

ay

Rob

in B

ay

Gre

at P

ond

Hal

fpen

ny B

ay

Con

tain

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ort

Hig

h-w

ater

.

.. M

. Lo

catio

n m

ark

,_ .

.

. ,

(Est

ate)

nu

mbe

r '

56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 76 77 78 79 80 81 82 74 75

St. C

roix

;

Chr

istia

nste

d

Chr

istia

nste

d

Chr

istia

nste

d

Chr

istia

nste

d

Chr

istia

nste

d

Chr

istia

nste

d

Chr

istia

nste

d

Chr

istia

nste

d

Mou

nt W

elco

me

Mou

nt W

elco

me

Bat

teri

et L

ouis

e A

ugus

ta

Bat

teri

et L

ouis

e A

ugus

ta

Bat

teri

et L

ouis

e A

ugus

ta

Bat

teri

et L

ouis

e A

ugus

ta

Bat

teri

et L

ouis

e A

ugus

ta

Shoy

s

Shoy

s

Shoy

s

Cot

ton

Val

ley

Slob

Cot

tong

arde

n B

ay

Gra

petr

ee B

ay

Mad

ame

Car

ty

Mou

nt R

etre

at

Fare

ham

Gra

nard

Kra

usse

s L

agun

e

Latit

ude

Long

itude

_,...,

Num

ber

of

Typ

e/qu

al,ty

of

hi

h.w

ater

mar

k m

arks

Elev

atio

n (f

eet

abov

e m

ean

sea

leve

l)

, U.S

. Virg

in I

slan

ds17

°44'

56"

17°4

4'56

"

17°4

4'54

"

17°4

4'50

"

17°4

4'51

"

17°4

4'51

"

17°4

4'55

"

17°4

4'58

"

17°4

5'04

"

17°4

5'05

"

17°4

5'13

"

17°4

5'21

"

17°4

5'24

"

17°4

5'21

"

17°4

5'23

"

17°4

5'23

"

17°4

5'21

"

17°4

5'28

"

17°4

5'40

"

17°4

5'22

"

17°4

5'37

"

17°4

4'56

"

17°4

4'H

"

17°4

3'59

"

17°4

3'10

"

17°4

2'20

"

17°4

1'55

"

64°4

2'14

"

64°4

2'09

"

64°4

2'06

"

64°4

2'04

"

64°4

2'03

"

64°4

1'58

"

64°4

1'53

"

64°4

1'55

"

64°4

1'52

"

64°4

1'47

"

64°4

1'42

"

64°4

1'39

"

64°4

1'36

"

64°4

1'35

"

64°4

1'33

"

64°4

1'25

"

64°4

1'11

"

64°4

1'02

"

64°3

7'27

"

64°3

6'05

"

64°3

5'08

"

64°3

5'39

"

64°3

7'07

"

64°3

7'36

"

64°3

9'53

"

64°4

2'10

"

64°4

5'41

"

Seed

line V

exce

llent

Dri

ftlin

es/p

oor

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Seed

lines

/ex

celle

nt

Seed

line/

fair

Dri

ftlin

es/f

air

Seed

lineV

exce

llent

Seed

line V

exce

llent

Seed

line V

exce

llent

Dri

ftlin

e/po

or

Seed

lineV

exce

llent

Seed

lineV

exce

llent

Dri

ftlin

es/f

air

Dri

ftlin

e/fa

ir

Dri

ftlin

e/po

or

Dri

ftlin

es/f

air

Dri

ftlin

es/p

oor

Dri

ftlin

es/p

oor

Dri

ftlin

es/p

oor

Dri

ftlin

es/p

oor

Dri

ftlin

es/f

air

Dri

ftlin

es/g

ood

Dri

ftlin

es/g

ood

Dri

ftlin

es/f

air

Dri

ftlin

es/f

air

Dri

ftlin

es/f

air

1 2 1 1 2 1 2 1 1 1 1 1 1 2 1 1 2 2 2 2 2 4 2 2 3 5 2

5.6

4.6

4.7

5.0

5.2

5.6

5.3

4.5

6.0

6.4

6.0

6.0

8.4

4.1

10.4 8.6

7.5

7.8

6.7

4.7

6.0

4.7

4.9

5.8

4.5

8.1

3.1

Page 23: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 2.

D

escr

iptio

n of

hig

h-w

ater

mar

ks C

ontin

ued

Plat

e nu

mbe

r

11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 12 12 12 12 12 12 12

m 19

OP

1Z 12 12to

Plat

e na

me

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

Hig

h-w

ater

m

ark

num

ber

36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 1 2 3 4 5 6 7 8 9 10

Loca

tion

(Est

ate)

St. T

hom

as,

Con

tant

Nis

ky

Nis

ky

Nis

ky

Nis

ky

Nis

ky

Nis

ky

Nis

ky

Nis

ky

Nis

ky

Nis

ky

Lin

dber

ghB

ay

Lin

dber

gh B

ay

Lin

dber

gh B

ay

Lin

dber

gh B

ay

John

Bre

wer

s B

ay

John

Bre

wer

s B

ay

Tho

mas

Tho

mas

Tho

mas

Tho

mas

Tho

mas

Kin

g Q

uart

er

Kin

g Q

uart

er

Kin

g Q

uart

er

Kin

g Q

uart

er

Kin

g Q

uart

er

Latit

ude

U.S

. Virg

in I

slan

ds18

°20'

17"

18°2

0'14

"

18°2

0'06

"

18°2

0'05

"

18°2

0'01

"

18°1

9'58

"

18°1

9'56

"

18°1

9'59

"

18°2

0'03

"

18°2

0'03

"

18°2

0'01

"

18°2

0'16

"

18°2

0'16

"

18°2

0'17

"

18°2

0'16

"

18°2

0'41

"

18°2

0'50

"

18°1

9'58

"

18°1

9'59

"

18°2

0'13

"

18°2

0'14

"

18°2

0'24

"

18°2

0'26

"

18°2

0'33

"

18°2

0'33

"

18°2

0'35

"

18°2

0'35

"

Long

itude

64°5

7'01

"

64°5

7'11

"

64°5

7'14

"

64°5

7'17

"

64°5

7'19

"

64°5

7'21

"

64°5

7'38

"

64°5

7'39

"

64°5

7'36

"

64°5

7'43

"

64°5

7'43

"

64°5

7'54

"

64°5

7'56

"

64°5

8'08

"

64°5

8'13

"

64°5

8'36

"

64°5

8'47

"

64°5

5'28

"

64°5

5'26

"

64°5

5'14

"

64°5

5'13

"

64°5

5'18

"

64°5

5'34

"

64°5

5'36

"

64°5

5'38

"

64°5

5'40

"

64°5

5'42

"

Type

/qua

lity

of

mar

k

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

es/p

oor

Dri

ftlin

e/fa

ir

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

e/fa

ir

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

es/p

oor

Dri

ftlin

es/p

oor

Dri

ftlin

e/po

or

Was

hlin

e/po

or

Dri

ftlin

es/f

air

Dri

ftlin

es/p

oor

Dri

ftlin

e/fa

ir

Dri

ftlin

e/fa

ir

Stai

nlin

es /

fair

Dri

ftlin

e/po

or

Was

hlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

es/f

air

Dri

ftlin

e/po

or

Dri

ftlin

e/fa

ir

Num

ber o

f hi

gh-w

ater

m

arks 1 1 2 1 1 1 1 1 1 1 1 1 2 2 1 1 2 2 1 1 2 1 1 1 2 1 1

Elev

atio

n (f

eet

abov

e m

ean

sea

leve

l)

6.6

6.4

6.5

7.4

6.2

7.5

5.7

5.4

4.6

5.8

5.7

8.2

9.6

8.1

9.0

8.1

8.1

9.0

10.0 7.4

5.7

7.0

7.5

7.2

5.7

6.8

7.6

Page 24: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 2.

D

escr

iptio

n of

hig

h-w

ater

mar

ks C

ontin

ued

Storm-Tide

Elevatic

w to O o> to c 0. o- X c o' 0>

(D 0> 3 O (D C V) £ to o> &

to I ff O1

(D £ 0) 8

Plat

e nu

mbe

rPl

ate

nam

eH

igh-

wat

er

mar

k nu

mbe

r

Loca

tion

(Est

ate)

Latit

ude

Long

itude

Type

/qua

lity

of

mar

k

Num

ber o

f hi

gh-w

ater

m

arks

Elev

atio

n (f

eet

abov

e m

ean

sea

leve

l)

St. T

hom

as,

U.S

. V

irgin

Isl

ands

12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St.

Tho

mas

Har

bor

St.

Tho

mas

Har

bor

St.

Tho

mas

Har

bor

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

St. T

hom

as H

arbo

r

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

Kin

g Q

uart

er

Kin

g Q

uart

er

Kin

g Q

uart

er

Kin

g Q

uart

er

Kin

g Q

uart

er

Kin

g Q

uart

er

Que

en Q

uart

er

Que

en Q

uart

er

Que

en Q

uart

er

Kro

npri

ndse

ns Q

uart

er

Kro

npri

ndse

ns Q

uart

er

Kro

npri

ndse

ns Q

uart

er

Kro

npri

ndse

ns Q

uart

er

Dem

arar

a

Dem

arar

a

Alto

na W

elgu

nst

Alto

na W

elgu

nst

Hon

dura

s

Alto

na W

elgu

nst

Alto

na W

elgu

nst

Alto

na W

elgu

nst

Alto

na

Alto

na

Alto

na

Alt

ona

18°2

0'35

"

18°2

0'32

"

18°2

0'31

"

18°2

0'30

"

18°2

0'30

"

18°2

0'36

"

18°2

0'34

"

18°2

0'35

"

18°2

0'32

"

18°2

0'32

"

18°2

0'33

"

18°2

0'29

"

18°2

0'28

"

18°2

0'25

"

18°2

0'23

"

18°2

0'19

"

18°2

0'19

"

18°2

0'19

"

18°2

0'15

"

18°2

0'12

"

18°2

0'ir

18°2

0'11

"

18°2

0'13

"

18°2

0'17

"

18°2

0'17

"

64°5

4'44

"

64°5

5'48

"

64°5

5'49

"

64°5

5'50

"

64°5

5'51

"

64°5

5'52

"

64°5

5'55

"

64°5

5'56

"

64°5

6'02

"

64°5

6'07

"

64°5

6'07

"

64°5

6'16

"

64°5

6'17

"

64°5

6'30

"

64°5

6'31

"

64°5

6'33

"

64°5

6'30

"

64°5

6'28

"

64°5

6'28

"

64°5

6'29

"

64°5

6'30

"

64°5

6'40

"

64°5

6'41

"

64°5

6'46

"

64°5

6'48

"

Stai

nlin

e /p

oor

Was

hlin

e/po

or

Dri

ftlin

e/fa

ir

Stai

nlin

e /g

ood

Dri

ftlin

e/fa

ir

Seed

line/

poor

Seed

lineV

good

Stai

nlin

e Vgo

od

Seed

line/

exce

llent

Seed

line

Vex

celle

nt

Seed

line

Vex

celle

nt

Seed

line

Vex

celle

nt

Dri

ftlin

e/po

or

Dri

ftlin

es/p

oor

Dri

ftlin

e/fa

ir

Dri

ftlin

e/po

or

Seed

line

Vex

celle

nt

Seed

line

Vex

celle

nt

Dri

ftlin

e/po

or

Dri

ftlin

e/fa

ir

Dri

ftlin

e/go

od

Dri

ftlin

e/fa

ir

Dri

ftlin

e/po

or

Dri

ftlin

e/fa

ir

Dri

ftlin

e/fa

ir

1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1

5.0

7.8

7.1

6.6

7.1

7.1

5.8

6.2

7.9

6.6

7.0

6.3

7.0

5.6

5.2

5.3

5.4

5.2

8.5

6.6

10.9 7.0

6.3

6.6

6.6

Page 25: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 2.

D

escr

iptio

n of

hig

h-w

ater

mar

ks C

ontin

ued

CT »

Plat

e nu

mbe

r

13 13

13 13

13 13

13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 14 15

Plat

e na

me

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Ren

dezv

ous

Bay

Cor

al H

arbo

r

Hig

h-w

ater

m

ark

num

ber

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 24

Loca

tion

(Est

ate)

St. J

ohn,

Cho

cola

te H

ole

and

Gre

at

Cru

z B

ay

Cho

cola

te H

ole

and

Gre

at

Cru

z B

ay

Cho

cola

te H

ole

and

Gre

at

Cru

z B

ay

Eni

ghed

Eni

ghed

Eni

ghed

Eni

ghed

Eni

ghed

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Cru

z B

ay

Can

cel B

ay

Can

cel B

ay

Can

cel B

ay

Fish

Bay

Em

mau

s C

oral

Bay

Latit

ude

U.S

. Virg

in I

slan

ds18

019-

12"

18°1

9'29

"

18°1

9'30

"

18°1

9'45

"

18°1

9'47

"

18°1

9'46

"

18°1

9'48

"

18°1

9'48

"

18°1

9'55

"

18°1

9'58

"

18°1

9'59

"

18°1

9'56

"

18°1

9'56

"

18°1

9'57

"

18°1

9'59

"

18°2

0'00

"

18°2

0'01

"

18°2

0'02

"

18°2

0'03

"

18°2

0'07

"

18°2

0'11

"

18°2

0'10

"

18°1

9'28

"

18°2

0'57

"

Long

itude

64°4

7'03

"

64°4

7'14

"

64°4

7'15

"

64°4

7'49

"

64°4

7'51

"

64°4

7'56

"

64°4

7'55

"

64°4

7'55

"

64°4

7'57

"

64°4

7'57

"

64°4

7'56

"

64°4

7'54

"

64°4

7'50

"

64°4

7'47

"

64°4

7'44

"

64°4

7'44

"

64°4

7'43

"

64°4

7'43

"

64°4

7'42

"

64°4

7'40

"

64°4

7'44

"

64°4

7'48

"

64°4

5'59

"

64°4

2'43

"

Type

/qua

lity

of

mar

k

Dri

ftlin

es/f

air

Sand

line/

poor

Stai

nlin

es /

fair

Dri

ftlin

e/fa

ir

Seed

line V

exce

llent

Dri

ftlin

e/po

or

Seed

line V

exce

llent

Stai

nlin

e/po

or

Was

hlin

e/po

or

Sand

line/

poor

Sand

line/

poor

Dri

ftlin

e/po

or

Dri

ftlin

e/fa

ir

Dri

ftlin

e/po

or

Sand

line/

poor

Sand

line/

poor

Sand

line/

poor

Sand

line/

poor

Sand

line/

poor

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

es/p

oor

Dri

ftlin

e/po

or

Num

ber

of

high

-wat

er

mar

ks 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1

Elev

atio

n (f

eet

abov

e m

ean

sea

leve

l)

8.2

8.1

7.0

9.2

5.2

7.1

5.1

7.7

8.9

5.6

6.1

5.0

4.0

4.1

4.0

4.0

4.2

4.1

4.1

4.1

4.4

4.8

11.3 5.1

Page 26: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 2.

D

escr

iptio

n of

hig

h-w

ater

mar

ks C

ontin

ued

Storm-Tide

Elevations

o (D a X c o' (D 0) 3 O (D C (A <n 5' 5T a) 3 a (0 , Septem

ber 1! V

o> <o

<o Ul

Plat

e nu

mbe

r

15 15 15 15 15 15 15 15 15 15 15 15 16 16 16 1 In

side

Plat

e na

me

Cor

al H

arbo

r

Cor

al H

arbo

r

Cor

al H

arbo

r

Cor

al H

arbo

r

Cor

al H

arbo

r

Cor

al H

arbo

r

Cor

al H

arbo

r

Cor

al H

arbo

r

Cor

al H

arbo

r

Cor

al H

arbo

r

Cor

al H

arbo

r

Cor

al H

arbo

r

John

son

Bay

John

son

Bay

John

son

Bay

high

-wat

er m

ark

Hig

h-w

ater

m

ark

num

ber

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

Loc

atio

n (E

stat

e)

St. J

ohn,

Em

mau

s C

oral

Bay

Em

mau

s C

oral

Bay

Car

olin

a

Car

olin

a

Car

olin

a

Car

olin

a

Litt

le P

lant

atio

n

Litt

le P

lant

atio

n

Litt

le P

lant

atio

n

Litt

le P

lant

atio

n

Cal

abas

h B

oom

Cal

abas

h B

oom

Cal

abas

h B

oom

John

s Fo

lly

John

s Fo

lly

Latit

ude

U.S

. V

irgin

Isl

ands

18°2

0'56

"

18°2

0'57

"

18°2

0'48

"

18°2

0'47

"

18°2

0'43

"

18°2

0'41

"

18°2

0'38

"

18°2

0'36

"

18°2

0'17

"

18°2

0'07

"

1 8°2

0'02

"

18°1

9'58

"

18°1

9'53

"

18°1

9'14

"

18°1

9'06

"

Lon

gitu

de

64°4

2'45

"

64°4

2'52

"

64°4

3'01

"

64°4

2'59

"

64°4

2'56

"

64°4

2'55

"

64°4

2'53

"

64°4

2'51

"

64°4

2'46

"

64°4

2'29

"

64°4

2'25

"

64°4

2'22

"

64°4

2'17

"

64°4

2'09

"

64°4

2'10

"

Typ

e/qu

ality

of

mar

k

Dri

ftlin

e/fa

ir

Dri

ftlin

es/f

air

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

es/g

ood

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

e/fa

ir

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftlin

e/po

or

Dri

ftli

ne/p

oor

Dri

ftlin

e/fa

ir

Num

ber

of

high

-wat

er

mar

ks 1 2 1 1 1 2 1 1 1 1 1 1 1 1 1

Elev

atio

n (f

eet

abov

e m

ean

sea

leve

l)

5.3

5.2

5.2

5.6

5.0

4.6

6.6

6.3

8.2

10.6 7.0

8.9

6.0

8.2

9.8

Page 27: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 3.

D

escr

iptio

n of

ref

eren

ce m

arks

and

ben

ch m

arks

Pla

te

num

ber

Ref

eren

ce m

ark

Pla

te n

ame

or b

ench

mar

knu

mbe

r

Ele

vatio

n (fe

et a

bove

m

ean

sea

leve

l)

Latit

ude

Long

itude

Loca

tion

and

desc

riptio

n

St.

Cro

ix,

U.S

. V

irgin

Isl

ands

1 Fr

eder

ikst

ed

1 Fr

eder

ikst

ed

1 Fr

eder

ikst

ed

1 Fr

eder

ikst

ed

1 Fr

eder

ikst

ed

1 Fr

eder

ikst

ed

1 Fr

eder

ikst

ed

Bel

vede

re

RM

26

RM

27

RM

27A

BM

FR

ED

3

BM

1 A

Z

RM

28

BM

GP

N

BM

21

6.97

6.52

17°4

2'10

"64

°53'

10"

10.6

2

7.64

6.46

7.73

6.19

17°4

2'12

" 64

°53'

09"

17°4

2'37

" 64

°53'

02"

17°4

2'54

" 64

°53'

03'

17°4

2'58

" 64

°53'

03'

17°4

3'04

" 64

°52'

55'

17°4

3'24

" 64

°53'

07"

17°4

6'19

" 64

°48'

55'

Chi

sele

d sq

uare

, pa

inte

d or

ange

, se

t on

top

of w

all

by C

otta

ges

by

the

Sea

sign

in f

ront

of b

each

res

ort a

t Vet

eran

s Sh

ore

Dri

ve, 0

.5 m

ile

sout

h of

Fre

deri

kste

d at

Hes

selb

erg

Est

ate.

Chi

sele

d sq

uare

, pa

inte

d or

ange

, se

t on

side

wal

k le

adin

g to

pow

er

plan

t at

sout

heas

t cor

ner

of O

n th

e B

each

Res

ort

(for

mer

Kin

g Fe

deri

k H

otel

), a

bout

650

fee

t nor

th o

f the

nor

th s

hore

of

the

Wes

tend

Sal

tpon

d, 0

.5 m

ile s

outh

of F

rede

riks

ted

at H

esse

lber

g E

stat

e.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

man

hole

con

cret

e ba

se,

east

of

man

hole

out

side

rin

g, n

orth

wes

t of b

uild

ing

B-1

0 of

Mar

ley

Hom

es a

nd a

cros

s of

fis

h m

arke

t pla

ce a

t en

d of

Roa

d 70

2 (F

ishe

r St

.) at

Tw

o B

roth

ers

Est

ate.

Stan

dard

U.S

. A

rmy

Cor

ps o

f Eng

inee

rs d

isk

stam

ped

FR

ED

STE

D

3 JA

X19

91,

set f

lush

in s

idew

alk

that

run

s pa

ralle

l w

ith s

eaw

all,

abou

t 10

0 fe

et s

outh

wes

t of

inte

rsec

tion

of S

tran

d an

d M

arke

t St

reet

s at

Fre

deri

kste

d E

stat

e.

Stan

dard

U.S

. Coa

st a

nd G

eode

tic S

urve

y di

sk s

tam

ped

7 A

Z 1

957

8,

set f

lush

in e

ast s

ide

of c

oncr

ete

base

of l

ight

tow

er a

t ent

ranc

e to

the

Fred

erik

sted

pie

r at

inte

rsec

tion

of S

tran

d an

d C

usto

m H

ouse

Str

eets

at

Fre

deri

kste

d E

stat

e.

Chi

sele

d sq

uare

, pa

inte

d or

ange

, se

t on

left

ups

trea

m s

ide

of c

ulve

rt

head

wal

l on

sec

ond

culv

ert i

n up

stre

am o

rder

, ove

r Jo

lly H

ill G

ut,

abou

t 80

0 fe

et s

outh

east

of

Paul

E. J

osep

h St

adiu

m a

t Fre

deri

kste

d E

stat

e.

Stan

dard

U.S

. C

oast

and

Geo

detic

Sur

vey

disk

sta

mpe

d G

PN

797

9,

set f

lush

on

sout

heas

t si

de o

f in

ters

ectio

n of

Roa

ds 6

3 an

d 76

(M

ahog

any

Rd.

) at

La

Gra

nge

Est

ate.

Stan

dard

U.S

. Geo

logi

cal S

urve

y di

sk s

tam

ped

Flo

od M

ark,

set

flu

sh

in s

outh

wes

t cor

ner

of w

est

conc

rete

wal

l of

Gab

riel

Will

iam

s bo

at

ram

p, a

bout

25

feet

nor

th o

f R

oad

80 a

t Can

e B

ay E

stat

e.

Page 28: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 3.

D

escr

iptio

n of

ref

eren

ce m

arks

and

ben

ch m

arks

Con

tinue

d

3

O (D c CO <3 5'

Plat

e n.

.

, Pl

ate

nam

e nu

mbe

r

Ref

eren

ce m

ark

or b

ench

mar

k nu

mbe

r

Elev

atio

n (f

eet a

bove

m

ean

sea

leve

l)

Latit

ude

Long

itude

Lo

catio

n an

d de

scrip

tion

St. C

roix

, U

.S. V

irgin

Isl

ands

2 B

elve

dere

2 B

elve

dere

3 Sa

lt R

iver

B

ay

3 Sa

lt R

iver

B

ay

3 Sa

lt R

iver

B

ay

3 Sa

lt R

iver

B

ay

4 L

a G

rand

e Pr

ince

sse

4 L

a G

rand

e Pr

ince

sse

4 L

a G

rand

e Pr

ince

sse

4 L

a G

rand

e Pr

ince

sse

5 C

hris

tians

ted

Har

bor

BM

22

RM

33

RM

34

BM

23

RM

35

RM

37

RM

39

RM

41

RM

41A

RM

42

RM

1

6.06

5.75

8.40

2.84

1.87

8.93

11.7

2

6.82

5.61

37.6

0

8.85

17°4

6'5

1 "

64°4

7'41

" St

anda

rd U

.S. G

eolo

gica

l Sur

vey

disk

sta

mpe

d F

lood

Mar

k, s

et fl

ush

in r

ight

ups

team

sid

e of

cul

vert

hea

dwal

l on

Roa

d 80

, 20

feet

wes

t of

entr

ance

to M

rs. A

pril

Will

iam

s pr

oper

ty a

t Rus

t Up

Tw

ist E

stat

e.

17°4

6'5

1 "

64°4

7'40

" C

hise

led

squa

re, p

aint

ed o

rang

e, s

et o

n ri

ght u

pstr

eam

sid

e of

cul

vert

he

adw

all

on R

oad

80 n

ear e

ntra

nce

to M

rs. A

pril

Will

iam

s pr

oper

ty

at R

ust U

p Tw

ist E

stat

e.

17°4

6'56

" 64

°45'

54"

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

corn

er o

f con

cret

e sl

ab, a

bout

40

fee

t wes

t of s

wim

min

g po

ol o

f Gen

tle W

inds

Apa

rtm

ents

, 0.3

m

ile n

orth

wes

t of G

reig

Hill

at S

alt R

iver

Est

ate.

17°4

6'38

" 64

°45'

45"

Stan

dard

U.S

. Geo

logi

cal S

urve

y di

sk s

tam

ped

Flo

odM

ark,

set

flus

h in

sou

th s

ide

of S

alt R

iver

Mar

ina

boat

ram

p at

Sal

t Riv

er E

stat

e.

17°4

6'38

" 64

°45'

41"

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

top

of s

eaw

all

acro

ss f

rom

Sa

lt R

iver

Mar

ina

offic

e at

Sal

t Riv

er E

stat

e.

17°4

6'33

" 64

°44'

32"

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

left

dow

nstr

eam

sid

e of

cu

lver

t hea

dwal

l on

Jeff

erso

n R

oad

in f

ront

of h

ouse

no.

83

of E

stat

e of

Judi

th F

ancy

Hom

es a

t Jud

ith F

ancy

Est

ate.

1 7°4

6'03

" 64

°44'

1 1 "

C

hise

led

squa

re, p

aint

ed o

rang

e, s

et o

n to

p of

con

cret

e w

all,

1 .5

feet

fr

om s

torm

sew

er g

rate

, beh

ind

the

Nic

asio

Nia

ud A

part

men

ts, a

bout

0.

6 m

ile e

ast o

f St.

John

s R

uins

at

St. J

ohns

Est

ate.

17°4

5'23

" 64

°43'

16"

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

side

wal

k le

adin

g to

ap

artm

ent D

-102

of t

he C

olon

y C

ove

Apa

rtm

ents

at G

olde

n R

ock

Est

ate.

17°4

5' 1

1 "

64°4

2'53

" C

hise

led

squa

re, p

aint

ed o

rang

e, s

et o

n so

uthe

ast c

orne

r of t

he V

irgi

n Is

land

s W

ater

and

Pow

er A

utho

rity

(V

IWA

PA)

and

Dev

con

Com

pany

pie

r, 6.

5 fe

et e

ast o

f VIW

APA

con

tinuo

us d

isch

arge

m

onito

ring

sta

tion

at F

angs

elet

Est

ate.

17°4

4'58

" 64

°42'

55"

Chi

sele

d sq

uare

set

on

floor

at n

orth

wes

t sid

e of

firs

t nor

thw

est

colu

mn

of e

ntra

nce

to f

ire tr

uck

gara

ge a

t Her

bert

L. C

aneg

ata

Fire

St

atio

n on

Ric

hmon

d St

reet

at F

angs

elet

Est

ate.

17°4

4'48

" 64

°42'

29"

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

corn

er o

f ditc

h in

fro

nt o

f lot

27

A n

ear t

he c

orne

r of

Nor

th a

nd M

arke

t Str

eets

at C

hris

tians

ted

Est

ate.

Page 29: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 3.

D

escr

iptio

n of

ref

eren

ce m

arks

and

ben

ch m

arks

Con

tinue

d

Pla

te

num

ber

Pla

te n

ame

Ref

eren

ce m

ark

or b

ench

mar

knu

mbe

r

Ele

vatio

n(fe

et a

bove

mea

n se

ale

vel)

Latit

ude

Long

itude

Loca

tion

and

desc

riptio

n

St.

Cro

ix,

U.S

. V

irgin

Isl

ands

5 C

hris

tians

ted

Har

bor

5 C

hris

tians

ted

Har

bor

5 C

hris

tians

ted

Har

bor

5 C

hris

tians

ted

Har

bor

5 C

hris

tians

ted

Har

bor

5 C

hris

tians

ted

Har

bor

5 C

hris

tians

ted

Har

bor

5 C

hris

tians

ted

Har

bor

5 C

hris

tians

ted

Har

bor

6 Ta

gue

Bay

RM

2

BM

NO

3

BM

CL

RM

3

BM

9 C

ES

BM

PO

RT

RM

4

RM

4A

RM

6

BM

5

4.30

5.09

4.38

7.83

3.60

5.09

4.01

3.42

9.17

22.9

4

17°4

4'53

"

17°4

4'55

"

64°4

2'29

"

64°4

2'18

'

17°4

4'56

" 64

°42'

09"

17°4

4'56

" 64

°42'

09"

17°4

4'52

" 64

°42'

02"

17°4

4'55

" 64

°41'

59"

17°4

4'52

" 64

°41'

52"

17°4

5'07

" 64

°41'

47'

17°4

5'28

" 64

°41'

01'

17°4

5'36

" 64

°37'

23'

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

side

wal

k in

fro

nt o

f ent

ranc

e to

Wat

ergu

t Apa

rtm

ents

adm

inis

trat

ion

offic

e ab

out 5

0 fe

et

nort

hwes

t of W

ater

gut

Stre

et a

t Chr

istia

nste

d E

stat

e.

Stan

dard

Nat

iona

l O

cean

Ser

vice

dis

k st

ampe

d N

O 3

197

4, s

et f

lush

in

sid

ewal

k le

adin

g to

the

Car

avel

le H

otel

at Q

ueen

Cro

ss S

treet

, ab

out 2

0 fe

et s

outh

east

of m

ain

entr

ance

to th

e ho

tel a

t Chr

istia

nste

dE

stat

e.

Stan

dard

U.S

. Coa

st a

nd G

eode

tic S

urve

y di

sk s

tam

ped

CL

MA

GN

ETI

C 1

905,

set

flu

sh in

a c

oncr

ete

post

, 54

feet

sou

thea

st o

f so

uthe

ast p

illar

at e

ntra

nce

to s

peak

er's

pavi

lion

on g

roun

ds o

f For

t C

hris

tian

Park

at C

hris

tians

ted

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

nort

h co

rner

of f

irst s

tep

of

stai

r lea

ding

from

gro

unds

of F

ort C

hris

tian

Park

to F

ort's

ent

ranc

e at

C

hris

tians

ted

Est

ate.

Stan

dard

U.S

. Geo

logi

cal

Surv

ey d

isk

stam

ped

9 C

ES

1957

4, s

et

flush

in s

outh

east

cor

ner

of s

tep

at s

outh

ent

ranc

e to

sal

twat

er

pum

phou

se,

12 f

eet

sout

h of

sou

thw

est c

orne

r of

pum

phou

se in

Pu

blic

Wor

ks D

epar

tmen

t yar

d at

Chr

istia

nste

d E

stat

e.

Stan

dard

Nat

iona

l Oce

an S

ervi

ce d

isk

stam

ped

NO

S P

OR

T-81

, set

flu

sh in

cen

ter

of s

outh

wes

t end

of G

allo

ws

Bay

doc

k at

C

hris

tians

ted

Est

ate.

Chi

sele

d sq

uare

, pai

nted

red,

set

on

the

nort

h si

de o

f sid

ewal

k co

rner

of

inte

rsec

tion

of P

ort

and

Anc

hor W

ay S

tree

ts a

t Mou

nt W

elco

me

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

nort

heas

t cor

ner

of s

mal

l pi

er, s

outh

east

of f

irst n

orth

east

col

umn

of p

ier

near

ent

ranc

e to

A

ltona

Lag

oon

Bea

ch a

t Bat

teri

et L

ouis

e A

ugus

ta.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

conc

rete

wal

l ar

ound

gas

ta

nk o

n be

ach

behi

nd B

ucca

neer

Hot

el a

t Sho

ys E

stat

e.

Stan

dard

U.S

. Geo

logi

cal S

urve

y di

sk s

tam

ped

Flo

od M

ark,

set

flus

h in

firs

t ste

p of

ent

ranc

e to

Eas

t End

Fir

e St

atio

n, 2

00 f

eet

sout

h of

E

ast E

nd R

oad,

sou

th o

f Yel

low

clif

f Bay

at M

ary'

s Fa

ncy

Est

ate.

Page 30: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 3.

D

escr

iptio

n of

ref

eren

ce m

arks

and

ben

ch m

arks

Con

tinue

d

Storm-Tide

Ele\

Pla

te

. P

late

nam

e nu

mbe

r

Ref

eren

ce m

ark

or b

ench

mar

k nu

mbe

r

Ele

vatio

n(fe

et a

bove

.

... ,

. ...

Latit

ude

Long

itude

m

ean

sea

ale

vel)

Loca

tion

and

desc

riptio

n

o D) a

w SP I

St.

Cro

ix,

U.S

. V

irgin

Isl

ands

Tag

ue B

ay

6 T

ague

Bay

6 T

ague

Bay

7 R

obin

Bay

7 R

obin

Bay

8 G

reat

Pon

d

9 H

alfp

enny

B

ay

10

Con

tain

er

Port

BM

NO

13.

*17

°45'

23"

64°3

6'06

"

RM

11

RM

12

RM

14

BM

8

RM

17A

RM

19

RM

20

16.8

7

6.91

25.3

3

24.7

1

10.0

1

10.4

4

12.3

6

17°4

5'36

" 64

°35'

06"

17°4

4'57

" 64

°35'

38"

17°4

4'14

" 64

°37'

06"

17°4

4'01

" 64

°37'

36"

64°3

9'52

"

17°4

2'21

" 64

°42'

05'

17°4

1'55

" 64

°45'

45'

Stan

dard

Nat

iona

l O

cean

Ser

vice

dis

k st

ampe

d N

O 1

197

5, s

et f

lush

in

the

sou

thea

st c

orne

r of

a c

oncr

ete

slab

on

the

east

ern

side

of

entr

ance

to

the

Fair

leig

h D

icki

nson

Uni

vers

ity p

ier,

13 f

eet

east

of

a ce

men

t pip

e en

clos

ure

that

run

ds n

orth

and

sou

th f

rom

the

Fai

rlei

gh

Dic

kins

on U

nive

rsity

lab

grou

nds

abou

t 0.

1 m

ile n

orth

of R

oad

66 a

t T

ague

Bay

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

conc

rete

flo

or a

t no

rth

entr

ance

to

hous

e in

rui

n, a

bout

200

fee

t so

uth

of r

estr

oom

s an

d ea

st

of m

ain

entr

ance

to

Cra

mer

Par

k B

each

at L

ongp

oint

and

Cot

ton

Gar

den

Est

ate.

Chi

sele

d sq

uare

, pa

inte

d or

ange

, se

t on

sout

h en

d of

2-f

eet h

igh

conc

rete

wal

l in

fro

nt o

f m

ain

entr

ance

to

room

122

2 of

the

Gra

petr

ee B

ay H

otel

at G

rape

tree

Bay

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

righ

t ups

trea

m s

ide

of c

ulve

rt

head

wal

l on

Sou

th S

hore

Roa

d ne

ar R

od B

ay, 0

.5 m

ile n

orth

wes

t of

G

rass

Poi

nt,

1.3

mile

s ea

st o

f m

ain

entr

ance

to

Cot

ton

Gro

ve R

uins

at

Mad

ame

Car

ty E

stat

e.

Stan

dard

U.S

. G

eolo

gica

l Su

rvey

dis

k st

ampe

d F

lood

Mar

k, s

et f

lush

in

rig

ht u

pstr

eam

sid

e of

cul

vert

hea

dwal

l on

Sou

th S

hore

Roa

d ne

ar

Rob

in B

ay, 0

.7 m

ile e

ast

of m

ain

entr

ance

to C

otto

n G

rove

Rui

ns a

t M

adam

e C

arty

Est

ate.

4-in

ch n

ail

in l

ast p

ower

pol

e al

ong

dirt

roa

d th

at g

oes

from

off

ice

to

the

beac

h at

the

Boy

s Sc

out

of A

mer

ica

Cam

p at

Far

eham

Est

ate.

Chi

sele

d sq

uare

, pa

inte

d or

ange

, se

t on

ste

p at

sou

th e

ntra

nce

to

Hal

fpen

ny B

ay C

lub,

0.7

mile

sou

thea

st o

f in

ters

ectio

n of

Roa

d 62

an

d di

rt r

oad

lead

ing

to M

anch

enil

and

Hal

fpen

ny B

ays

at H

alfp

enny

B

ay E

stat

e.

Chi

sele

d sq

uare

pai

nted

ora

nge,

set

on

floo

r at

sou

thea

st s

ide

of

conc

rete

arc

hed

build

ing

in r

uin,

abo

ut 4

00 f

eet

nort

hwes

t of

se

asho

re,

0.2

mile

nor

thea

st o

f m

outh

of

Kra

use

Lag

oon

Cha

nnel

at

Kra

usse

s L

agun

e E

stat

e.

Page 31: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 3.

D

escr

iptio

n of

ref

eren

ce m

arks

and

ben

ch m

ark

s C

ontin

ued

Plat

e nu

mbe

rPl

ate

nam

e

... ,

. El

evat

ion

Ref

eren

ce m

ark

,, .

,(T

GG

T 3D

OV

6or

ben

ch m

ark

v La

titud

e Lo

ngitu

de

Loca

tion

and

desc

riptio

n ,

mea

n se

a nu

mbe

r .

.. le

vel)

St. T

hom

as,

U.S

. Virg

in I

slan

ds

11 11 11 11 11 11 11 11 1151

tr (D

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

Cyr

il K

ing

Air

port

RM

4A

8.

98

18°2

0'15

" 64

°57'

12"

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

sout

hwes

t cor

ner

of

tria

ngul

ar m

edia

n at

int

erse

ctio

n of

Roa

ds 3

3 an

d 30

4, s

outh

east

of

Nis

ky C

ente

r at

Nis

ky E

stat

e.

RM

5

14.4

7 1 8

°20'

07"

64°5

7'35

" C

hise

led

squa

re, p

aint

ed o

rang

e, s

et o

n so

uthe

ast c

orne

r of

hea

dwal

l of

cul

vert

at n

orth

sid

e of

inte

rsec

tion

of R

oad

304

and

mai

n en

tran

ce to

Kru

m B

ay E

stat

e.

RM

6

7.99

1 8

°20'

18"

64°5

7'52

" C

hise

led

squa

re, p

aint

ed o

rang

e, s

et o

n no

rth c

urb

of R

oad

302

to

airp

ort,

acro

ss o

f ent

ranc

e to

Isl

and

Bea

chco

mbe

r Hot

el a

t Lin

dber

gh

Bay

Est

ate.

BM

US

VI6

8.

02

18°2

0'19

" 64

°57'

56"

Stan

dard

U.S

. Arm

y C

orps

of E

ngin

eers

dis

k st

ampe

d U

SVI-

6, 1

990,

se

t flu

sh o

n si

dew

alk

north

of R

oad

302,

acr

oss

of Is

land

B

each

com

ber

Hot

el, a

bout

1,6

00 f

eet e

ast o

f ent

ranc

e to

Cyr

il E.

K

ing

Air

port

at L

indb

ergh

Bay

Est

ate.

RM

7

8.39

1 8

°20'

1 8"

64

°58'

07"

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

north

cur

b of

Roa

d 30

2 to

C

yril

E. K

ing

Air

port

, abo

ut 2

00 f

eet e

ast o

f ent

ranc

e to

the

airp

ort

and

20 fe

et w

est o

f firs

t lig

ht p

ole

of a

irpo

rt a

t Lin

dber

gh B

ay E

stat

e.

BM

US

VI5

8.

21

18°2

0'19

" 64

°58'

09"

Stan

dard

U.S

. Arm

y C

orps

of E

ngin

eers

dis

k st

ampe

d U

SVI-

5, 1

990,

se

t flu

sh o

n si

dew

alk

nort

h of

Roa

d 30

2, a

bout

200

feet

eas

t of

entr

ance

to th

e ai

rpor

t at L

indb

ergh

Bay

Est

ate.

RM

9

17.2

4 1 8

°20'

40"

64°5

8'34

" C

hise

led

squa

re, p

aint

ed o

rang

e, s

et o

n cu

rb a

t med

ian

of R

oad

30,

30 f

eet s

outh

of c

ross

over

, 800

fee

t sou

thea

st o

f mai

n en

tran

ce to

the

Rei

chho

ld C

ente

r for

the

Art

s, C

olle

ge o

f the

Virg

in I

slan

ds a

t Joh

n B

rew

ers

Bay

Est

ate.

RM

9A

12

.1 1

1 8°2

0'48

" 64

°58'

39"

Chi

sele

d sq

uare

, pai

nted

red,

se

t on

nort

heas

t cor

ner

of c

oncr

ete

wal

l nor

th o

f ups

trea

m h

eadw

all o

f cul

vert

on

Roa

d 30

, abo

ut 2

0 fe

et

nort

hwes

t of m

ain

entr

ance

to th

e R

eich

hold

Cen

ter f

or th

e A

rts,

Col

lege

of t

he V

irgin

Isl

ands

at J

ohn

Bre

wer

s B

ay E

stat

e.

RM

10

33.9

8 18

°20'

52"

64°5

8'46

" C

hise

led

squa

re s

et o

n no

rthw

est c

orne

r of

ups

trea

m h

eadw

all

of

culv

ert o

n R

oad

30, 4

00 f

eet n

orth

wes

t of m

ain

entr

ance

to th

e R

eich

hold

Cen

ter

for t

he A

rts,

Col

lege

of t

he V

irgin

Isl

ands

at J

ohn

Bre

wer

s B

ay E

stat

e.

Page 32: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 3.

D

escr

iptio

n of

ref

eren

ce m

arks

and

ben

ch m

ark

s C

ontin

ued

Pla

te

num

ber

Pla

te n

ame

Ref

eren

ce m

ark

or b

ench

mar

knu

mbe

r

Ele

vatio

n(fe

et a

bove

mea

n se

ale

vel)

Latit

ude

Long

itude

Loca

tion

and

desc

riptio

n

St. T

hom

as,

U.S

. V

irgin

Isl

ands

12

St. T

hom

as

Har

bor

12

St. T

hom

as

Har

bor

12

St. T

hom

as

Har

bor

CO

(D I <T

(D

12 12 12 12

St. T

hom

as

Har

bor

St. T

hom

as

Har

bor

St. T

hom

as

Har

bor

St. T

hom

as

Har

bor

BM

BE

TSY

BM

1639

J

BM

163

9 G

7.87

9.87

7.80

RM

1A

BM

163

9 L

9.98

7.65

RM

2

BM

NO

5

5.35

5.03

18°1

9'56

" 64

°55'

36"

Stan

dard

Nat

iona

l O

cean

Ser

vice

dis

k st

ampe

d B

ETS

Y 19

93, s

etflu

sh in

the

sout

hwes

t cor

ner o

f sou

thw

est e

nd o

f the

Wes

t Ind

ian

Com

pany

Doc

k at

Tho

mas

Est

ate.

18°2

0'07

" 64

°55'

16"

Stan

dard

Nat

iona

l O

cean

Ser

vice

dis

k st

ampe

d 16

39 J

1986

, se

tflu

sh in

a c

oncr

ete

wal

k be

neat

h th

e st

eps

at th

e m

ain

entr

ance

to th

e W

est I

ndia

n C

ompa

ny D

ock

adm

inis

trat

ion

build

ing

at T

hom

as

Est

ate.

18°2

0'13

" 64

°55'

12"

Stan

dard

Nat

iona

l O

cean

Ser

vice

dis

k st

ampe

d 16

39 G

198

3, s

etflu

sh in

the

conc

rete

bul

khea

d ca

p on

the

Wes

t Ind

ian

Com

pany

D

ock,

88

feet

sou

thw

est o

f the

sou

th c

orne

r of a

con

cret

e bl

ock

wal

l of

the

Ram

ada

Yac

ht H

aven

Hot

el p

arki

ng lo

t, an

d 22

fee

t sou

thea

st

of th

e so

uthe

ast f

ace

of a

con

cret

e ca

rgo

load

ing

pier

at T

hom

as

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

east

cur

b of

ent

ranc

e to

eas

t pa

rkin

g lo

t of t

he R

amad

a Y

acht

Hav

en H

otel

, sou

th o

f Roa

d 30

, and

w

est o

f int

erse

ctio

n of

Roa

ds 3

0 an

d 31

3 at

Tho

mas

Est

ate.

Stan

dard

Nat

iona

l O

cean

Ser

vice

dis

k st

ampe

d 16

39 L

198

6, s

et

flush

in th

e to

p of

a 1

-foo

t wid

e co

ncre

te r

etai

ning

wal

l ext

endi

ng

from

the

sout

h fa

ce o

f the

sal

t wat

er p

umpi

ng s

tatio

n on

the

sout

h si

de o

f Roa

d 30

, 37

feet

sou

th o

f nor

thea

st c

orne

r of t

he p

umpi

ng

stat

ion

build

ing,

and

4 f

eet e

ast o

f the

sou

thea

st c

orne

r of t

he

build

ing

at T

hom

as E

stat

e.

Chi

sele

d sq

uare

set

on

floor

at m

ain

entr

ance

to th

e sa

lt w

ater

pu

mpi

ng s

tatio

n bu

ildin

g, 1

2 fe

et s

outh

of n

orth

east

cor

ner

of th

e pu

mpi

ng s

tatio

n bu

ildin

g, a

nd s

outh

of R

oad

30 a

t Fre

deri

cksb

erg

Poin

t, T

hom

as.

18°2

0'30

" 64

°55'

51"

Stan

dard

Nat

iona

l Oce

an S

ervi

ce d

isk

stam

ped

NO

5 1

975,

set

flu

shin

the

sout

hwes

t cor

ner o

f a c

oncr

ete

step

at t

he e

ntra

nce

to th

e ad

min

istr

atio

n bu

ildin

g, U

.S. C

oast

Gua

rd S

tatio

n, 2

7.3

feet

eas

t of

the

east

cur

b of

the

road

lead

ing

to th

e st

atio

n, a

nd 3

.5 f

eet w

est o

f th

e fo

unda

tion

at K

ings

Wha

rf, K

ing

Qua

rter

Est

ate.

18°2

0'15

" 64

°55'

10"

18°2

0'26

" 64

°55'

35'

18°2

0'27

" 64

°55'

36"

Page 33: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 3.

D

escr

iptio

n of

ref

eren

ce m

arks

and

ben

ch m

arks

Con

tinue

d

Plat

e . Pl

ate

nam

e nu

mbe

r

_, ,

. El

evat

ion

Ref

eren

ce m

ark

., .

. u

u i

(fee

t abo

ve

. ...

. .

...

or b

ench

mar

k v

Latit

ude

Long

itude

.

mea

n se

a a

num

ber

. ..

leve

l)

Loca

tion

and

desc

riptio

n

St. T

hom

as,

U.S

. Virg

in I

slan

ds

12

St. T

hom

as

Har

bor

12

St. T

hom

as

Har

bor

12

St. T

hom

as

Har

bor

1 2

St. T

hom

as

Har

bor

12

St. T

hom

as

Har

bor

BM

1639

D

2.94

18

°20'

32"

64°5

5'58

"

RM

3A

3.82

18

°20'

29"

64°5

6'11

"

RM

3B

8.19

18

°20'

10"

64°5

6'30

"

RM

3C

6.21

18

°20'

16"

64°5

6'55

"

RM

4 5.

30

18°2

0'22

" 64

°56'

56"

Stan

dard

Nat

iona

l Oce

an S

ervi

ce d

isk

stam

ped

1639

D 1

980,

set

flu

sh in

the

conc

rete

bul

khea

d ne

ar th

e in

ters

ectio

n of

Roa

d 30

and

T

rom

pete

r G

ade,

abo

ut 3

0 fe

et s

outh

of t

he s

outh

sid

e of

Vet

eran

s D

rive

, 1 .

7 fe

et n

orth

of t

he b

ulkh

ead

face

, and

dir

ectly

in f

ront

of a

2-

foot

moo

ring

cle

at a

t Que

en Q

uart

er E

stat

e.

Nai

l with

1-in

ch s

tain

less

ste

el d

isk

embe

dded

in c

oncr

ete

floor

, 4.2

fe

et w

est o

f Em

il E.

Whi

te M

emor

iam

, sou

th o

f int

erse

ctio

n of

Roa

d 30

and

Gen

eral

Gad

e at

the

Wat

erfr

ont a

rea,

Kro

npri

ndse

ns Q

uart

er

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

nort

hwes

t cor

ner

of

wes

tern

mos

t cis

tern

in f

ront

of C

hart

Hou

se R

esta

uran

t, ea

st s

ide

of

stai

r th

at g

oes

from

the

rest

aura

nt to

the

beac

h at

Alto

na W

elgu

nst

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

sout

heas

t cor

ner

of a

co

ncre

te c

argo

load

ing

ram

p at

end

of a

cces

s ro

ad f

rom

Roa

d 30

to

Tro

pica

l Shi

ppin

g C

ompa

ny a

t Con

tant

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

sout

h cu

rb a

t med

ian

of R

oad

30, i

n lin

e w

ith p

roje

ctio

n of

acc

ess

road

to A

CE

Har

dwar

e an

d T

ropi

cal

Ship

ping

Com

pany

at C

onta

nt E

stat

e.

St. J

ohn,

U.S

. Virg

in I

slan

ds

13

Cru

z B

ay

13

Cru

z B

ay

13

Cru

z B

ay

13

Cru

z B

ay

RM

11

9.06

18

°19'

12"

64°4

7'03

"

RM

12

6.66

18

°19'

22"

64°4

7'11

"

RM

13

4.68

18

°20'

00"

64°4

7'44

"

BM

NO

2 2.

85

18°2

0'04

" 64

°47'

38"

Chi

sele

d sq

uare

, pai

nted

red,

set

on

east

cor

ner o

f par

tially

des

troy

ed

ston

e w

all,

150

feet

due

eas

t of b

each

at C

hoco

late

Hol

e, C

hoco

late

H

ole

and

Gre

at C

ruz

Bay

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

wes

t bas

e of

mou

ntai

n at

firs

t dr

ivew

ay w

est o

f hot

el, 3

fee

t fro

m s

outh

end

cur

ve a

t Gre

at C

ruz

Bay

, Cho

cola

te H

ole

and

Gre

at C

ruz

Bay

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

nort

heas

t cor

ner

of L

ored

on

Lor

ence

Boy

nes

Sr. d

ock

(Cru

z B

ay d

ock)

, eas

t sid

e of

ad

min

istr

atio

n an

d tic

kets

off

ice

at C

ruz

Bay

Est

ate.

Stan

dard

Nat

iona

l Oce

an S

ervi

ce d

isk

stam

ped

NO

2 1

972,

set

in

conc

rete

sea

wal

l app

roxi

mat

ely

1 fo

ot fr

om n

orth

wes

t cor

ner

of th

e N

atio

nal P

ark

Serv

ice

dock

at C

ruz

Bay

Est

ate.

Page 34: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 3.

D

escr

iptio

n of

ref

eren

ce m

arks

and

ben

ch m

arks

Con

tinue

d

o

Pla

te

num

ber

Pla

te n

ame

Ref

eren

ce m

ark

or b

ench

mar

knu

mbe

r

Ele

vatio

n(fe

et a

bove

mea

n se

ale

vel)

Latit

ude

Long

itude

Loca

tion

and

desc

riptio

n

St. J

ohn,

U.S

. Virg

in I

slan

d

14

Ren

dezv

ous

Bay

14

Ren

dezv

ous

Bay

15

Cor

al H

arbo

r

15

Cor

al H

arbo

r

15

Cor

al H

arbo

r

15

Cor

al H

arbo

r

15

Cor

al H

arbo

r

15

Cor

al H

arbo

r

15

Cor

al H

arbo

r

RM

9A

RM

9B

BM

137

3 A

RM

2A

RM

2B

RM

3

RM

3A

RM

3B

RM

4

13.9

7

87.9

0

1.36

5.30

4.69

8.42

60.9

0

18.2

8

37.9

7

18°1

9'28

"64

°46'

00"

18°1

9'22

" 64

°46'

00"

18°2

0'56

" 64

°42'

44"

18°2

0'54

" 64

°42'

58"

18°2

0'40

" 64

°42'

55'

18°2

0'35

" 64

°42'

50"

18°2

0'29

" 64

°42'

49"

18°2

0'20

" 64

°42'

47"

18°2

0'13

" 64

°42'

43"

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

sout

heas

t cor

ner

of u

pstr

eam

he

adw

all

of c

ulve

rt o

n di

rt r

oad

to F

ish

Bay

, ac

ross

a tw

o-st

ory

blue

w

oode

n ho

use,

nor

th o

f Fis

h B

ay s

ign,

0.7

mile

eas

t of

Roa

d 10

4 at

Fi

sh B

ay E

stat

e.

Chi

sele

d sq

uare

, pa

inte

d or

ange

, se

t on

sout

h en

d of

reta

inin

g w

all

on e

ast s

ide

of d

irt r

oad

to F

ish

Bay

, abo

ut 4

00 f

eet s

outh

of F

ish

Bay

si

gn,

0.7

mile

eas

t of R

oad

104

at F

ish

Bay

Est

ate.

Stan

dard

Nat

iona

l O

cean

Ser

vice

dis

k st

ampe

d 73

73 A

198

3 ce

men

ted

to d

rill

hole

at n

orth

wes

t cor

ner

of c

oncr

ete

wha

rf in

Cor

al

Bay

, 0.9

fee

t eas

t of

wes

t edg

e of

wha

rf, 0

.9 f

eet

sout

h of

nor

th e

dge

of w

harf

at C

oral

Har

bor,

Em

mau

s C

oral

Bay

Est

ate.

Chi

sele

d sq

uare

, pa

inte

d or

ange

, se

t on

wes

t cur

b of

Roa

d 10

7, i

n lin

e w

ith p

roje

ctio

n of

nor

th w

all o

f gas

sta

tion

adm

inis

trat

ion

offi

ce,

abou

t 0.2

mile

sou

th o

f int

erse

ctio

n of

Roa

ds 1

0 an

d 10

7 at

Em

mau

s C

oral

Bay

Est

ate.

Chi

sele

d sq

uare

, pa

inte

d or

ange

, se

t on

sout

heas

t end

of u

pstr

eam

he

adw

all

of c

ulve

rt o

n R

oad

107,

abo

ut 5

00 f

eet n

orth

of

Seab

reez

e C

afe

at C

arol

ina;

fou

r m

ailb

oxes

are

set

ove

r he

adw

all,

one

read

s H

arri

s-B

all

15-3

#1,

Est

ate

Car

olin

a, C

arol

ina

Est

ate.

Chi

sele

d sq

uare

, se

t on

sout

heas

t cor

ner

of re

tain

ing

wal

l on

leew

ard

side

of R

oad

107,

0.4

5 m

ile s

outh

of

inte

rsec

tion

with

Kin

g H

ill

Roa

d at

Litt

le P

lant

atio

n E

stat

e.

Chi

sele

d sq

uare

, pa

inte

d or

ange

, se

t on

cent

er o

f up

stre

am h

eadw

all

of c

ulve

rt o

n R

oad

107,

abo

ut 0

.15

mile

sou

th o

f Pe

n Po

int

at L

ittle

Pl

anta

tion

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

dow

nstr

eam

hea

dwal

l of

cu

lver

t on

Roa

d 10

7, a

bout

0.3

mile

sou

th o

f Pe

n Po

int

at S

ande

rs

Bay

, Litt

le P

lant

atio

n E

stat

e.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

sout

heas

t cor

ner

of u

pstr

eam

he

adw

all

of s

mal

l cu

lver

t at R

oad

107

in S

ande

rs B

ay,

200

feet

wes

t of

sta

irw

ay o

n to

p of

hill

, 0.7

mile

nor

thw

est o

f C

alab

ash

Boo

m

Cem

eter

y, 0

.4 m

ile s

outh

east

of

Pen

Poin

t Cem

eter

y at

Litt

le

Plan

tatio

n E

stat

e.

Page 35: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

Tabl

e 3.

D

escr

iptio

n of

ref

eren

ce m

arks

and

ben

ch m

arks

Con

tinue

d

Pla

te

num

ber

Pla

te n

ame

Ref

eren

ce m

ark

or b

ench

mar

knu

mbe

r

Ele

vatio

n(fe

et a

bove

mea

n se

ale

vel)

Latit

ude

Long

itude

Loca

tion

and

desc

riptio

n

St.

John

, U

.S.

Virg

in I

slan

d

15

Cor

al H

arbo

r

15

Cor

al H

arbo

r

16

John

son

Bay

RM

4A

RM

4B

RM

5

10.3

5

11.2

1

14.8

2

16

John

son

Bay

RM

825

.10

18°2

0'05

" 64

°42'

28"

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

nort

hwes

t end

of

dow

nstr

eam

hea

dwal

l of c

ulve

rt in

fro

nt o

f Sh

ipw

reck

Lan

ding

R

esta

uran

t, ab

out 0

.3 m

ile n

orth

wes

t of C

alab

ash

Boo

m C

emet

ery

at

Blo

omin

gdal

e C

oral

Bay

, Cal

abas

h B

oom

Est

ate.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

sout

h en

d of

a 2

-foo

t wid

e se

awal

l on

Cal

abas

h B

oom

Bay

, abo

ut 0

.15

mile

nor

thw

est o

f C

alab

ash

Boo

m C

emet

ery

at C

alab

ash

Boo

m E

stat

e.

Chi

sele

d sq

uare

, pai

nted

ora

nge,

set

on

cent

er o

f dow

nstr

eam

he

adw

all

of c

ulve

rt o

n R

oad

107,

100

fee

t wes

t of p

riva

te c

oncr

ete

pave

d en

tran

ce to

the

bea

ch, a

nd a

bout

150

fee

t eas

t of i

nter

sect

ion

of R

oad

107

and

dirt

road

, nea

r Joh

nson

Bay

Cem

eter

y at

Cal

abas

h B

oom

Est

ate.

64°4

2'06

" C

hise

led

squa

re, p

aint

ed o

rang

e, s

et o

n re

tain

ing

wal

l at s

eaw

ard

side

of R

oad

107,

nor

th o

f ent

ranc

e di

rt r

oad

to J

ohns

Fol

ly B

ay a

t Jo

hns

Folly

Est

ate.

18°2

0'00

" 64

°42'

24"

64°4

2'16

"

Page 36: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

32 Storm-Tide Elevations Casued by Hurricane Marilyn on the U.S. Virgin Islands, September 15-16,1995

Page 37: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

PLATES

Page 38: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

EX

PL

AN

AT

ION

Ref

eren

ce m

ark

and

iden

tific

atio

n nu

mbe

r B

ench

mar

k an

d id

entif

icat

ion

num

ber

Hig

h-w

ate

r m

ark

and

iden

tific

atio

n nu

mbe

r N

umbe

r in

par

enth

eses

is e

leva

tion

in f

eet

abov

e m

ean

sea

leve

l 10-f

oot

elev

atio

n co

ntou

r 2

0-f

oo

t el

evat

ion

cont

our

Maj

or r

oad

from

1:2

4000

DUG

A

ppro

xim

ate

inun

datio

n ar

ea

Feet

25

0 0

250

500

HU

RR

ICA

NE

MA

RIL

YN

SE

PT

EM

BE

R 1

5-1

6,1

995

MA

XIM

UM

EX

TE

NT

OF

ST

OR

M T

IDE

FR

ED

ER

IKS

TE

DP

repa

red

by th

eD

EP

AR

TM

EN

T O

F T

HE

AR

MY

JA

CK

SO

NV

ILL

E D

IST

RIC

T,

CO

RP

S O

F E

NG

INE

ER

SM

odifi

ed b

y th

e U

S G

EO

LO

GIC

AL

SU

RV

EY

, C

AR

IBB

EA

N D

IST

RIC

T

_________________

PL

AT

E 1

at

16

Page 39: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

64°4

ffOO

17°4

5-00

17°4

1'00

ST. C

ROIX

MA

P20F

10

A

O

EX

PLA

NA

TIO

N

Ref

eren

ce m

ark

and

iden

tific

atio

n nu

mbe

r B

ench

mar

k an

d id

entif

icat

ion

num

ber

Hig

h-

wat

er m

ark

and

iden

tific

atio

n nu

mbe

r. N

umbe

r in

par

enth

eses

is e

leva

tion

in f

eet

abov

e m

ean

sea

leve

l 1

0-

foot

ele

vatio

n co

ntou

r 2

0-

foot

ele

vatio

n co

ntou

r M

ajor

roa

d fr

om 1

:240

00 D

LG

App

roxi

mat

e in

unda

tion

area

Feet

25

0 0

250

500

HU

RR

ICA

NE

MA

RIL

YN

SE

PTE

MB

ER

1 5

- 1

6,1

995

M

AX

IMU

M E

XT

EN

T O

F S

TO

RM

TID

E

BE

LVE

DE

RE

Pre

pare

d by

the

DE

PA

RT

ME

NT

OF

THE

AR

MY

JA

CK

SO

NV

ILLE

DIS

TR

ICT

, C

OR

PS

OF

EN

GIN

EE

RS

Mod

ified

by

the

US

GE

OLO

GIC

AL

SU

RV

EY

, C

AR

IBB

EA

N D

IST

RIC

T

Page 40: Storm-Tide Elevations Caused by Hurricane Marilyn …PLATES [Plates are at end of report] Plates 1-16. Maps showing elevations of high-water marks and survey marks used to document

EX

PLA

NA

TIO

N

Ref

eren

ce m

ark

and

iden

tific

atio

n nu

mbe

r B

ench

mar

k an

d id

entif

icat

ion

num

ber

Hig

h-

wat

er m

ark

and

iden

tific

atio

n nu

mbe

r. N

umbe

r in

par

enth

eses

is e

leva

tion

in f

eet

abov

e m

ean

sea

leve

l 1

0-

foot

ele

vatio

n co

ntou

r 2

0-

foot

ele

vatio

n co

ntou

r M

ajor

roa

d fr

om 1

:240

00 D

LG

App

roxi

mat

e in

unda

tion

area

,2

4(6

.7)

' B

M23

RM

35,.

HU

RR

ICA

NE

MA

RIL

YN

SE

PTE

MB

ER

1 5

- 1

6, 1

99

5

MA

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