• TABLE OF CONTENTS
HIDE
 Front Cover
 Title Page
 Table of Contents
 Advance summary
 Introduction and wave data...
 Sediment considerations
 Settlement considerations
 Scour rod results
 Contingency plans
 Summary and conclusions
 Reference
 Appendix I. P.E.P. reef offshore...
 Appendix II. P.E.P. reef top of...
 Appendix III






Group Title: UFLCOEL-95004
Title: Performance of the midtown Palm Beach P. E. P. reef installation
CITATION THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00085017/00001
 Material Information
Title: Performance of the midtown Palm Beach P. E. P. reef installation seventeen months results, August 1993 to December 1994
Series Title: UFLCOEL-95004
Alternate Title: Performance of the midtown Palm Beach Prefabricated Erosion Prevention reef installation
Physical Description: 1 v. (various pagings) : ill. ; 28 cm.
Language: English
Creator: Dean, Robert G ( Robert George ), 1930-
Chen, Renjie
University of Florida -- Coastal and Oceanographic Engineering Dept
Publisher: University of Florida, Coastal & Oceanographic Engineering Dept.
Place of Publication: Gainesville Fla
Publication Date: 1995
 Subjects
Subject: Artificial reefs -- Florida -- Palm Beach   ( lcsh )
Shore protection -- Florida -- Palm Beach   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
bibliography   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: Robert G. Dean and Renjie Chen.
Bibliography: Includes bibliographical references.
General Note: "February 1995."
 Record Information
Bibliographic ID: UF00085017
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 33325057

Table of Contents
    Front Cover
        Front Cover 1
        Front Cover 2
    Title Page
        Title Page 1
        Title Page 2
    Table of Contents
        Table of Contents
    Advance summary
        Page 1
        Page 2
        Page 3
    Introduction and wave data analysis
        Page 4
    Sediment considerations
        Page 5
        Page 6
        Page 7
        Page 8
        Page 9
        Page 10
        Page 11
        Page 12
        Page 13
        Page 14
        Page 15
        Page 16
        Page 17
        Page 18
        Page 19
        Page 20
    Settlement considerations
        Page 21
    Scour rod results
        Page 22
    Contingency plans
        Page 23
        Page 24
    Summary and conclusions
        Page 25
    Reference
        Page 26
    Appendix I. P.E.P. reef offshore & nearshore wave gage data, July-September, 1994
        Page I-1
        Page I-2
        Page I-3
        Page I-4
        Page I-5
        Page I-6
    Appendix II. P.E.P. reef top of sturcture elevation data
        Page II-1
        Page II-2
        Page II-3
        Page II-4
        Page II-5
    Appendix III
        Page III
        Page III-1
        Page III-2
        Page III-3
        Page III-4
        Page III-5
        Page III-6
        Page III-7
        Page III-8
        Page III-9
        Page III-10
        Page III-11
        Page III-12
Full Text






UFL/COEL-95/004


PERFORMANCE OF THE MIDTOWN PALM BEACH
P.E.P. REEF INSTALLATION
SEVENTEEN MONTHS RESULTS
AUGUST 1993 TO DECEMBER 1994







by


Robert G. Dean
and
Renjie Chen


February, 1995










PERFORMANCE OF THE MIDTOWN PALM BEACH P.E.P. REEF INSTALLATION


SEVENTEEN MONTHS RESULTS


AUGUST 1993 TO DECEMBER 1994




February 1995







Robert G. Dean
and
Renjie Chen


















University of Florida

Coastal & Oceanographic Engineering Department
Gainesville, Florida









TABLE OF CONTENTS

PAGE

ADVAN CE SUM M ARY ...................................................................................................................................... 1

INTRODUCTION ................................................................................................................................ 1

W AVE TRANSM ISSION .......................................................................................................................... 1

SEDIM ENT VOLUM E CHANGES ................................................................................................... 2
SETTLEM ENT OF UNITS ................................................................................................................. 2
SCOUR ........................................................................................................................................................ 2

CONTINGENCY PLAN ...................................................................................................................... 3

SUM M ARY STATEM ENT ....................................................................................................................... 3

ACKNOW LEDGM ENTS .................................................................................................................... 3

IN TRO DU CTIO N ................................................................................................................................................. 4

W AVE DATA ANALYSIS ............................................................................................................................ 4

W AVE HEIGHT REDUCTION ......................................................................................................... 4

SEDIM ENT CO NSIDERATIO NS .............................................................................................................. 5

LONGSHORE SHORELINE CHANGE DISTRIBUTIONS ............................................ ........... 7

LONGSHORE VOLUME CHANGE DISTRIBUTION ............................................................... 8
ELEVATION CHANGES .................................................................................................................... 9
PROFILE CHANGES ........................................................................................................................ 13

VOLUM E CHANGES BY ZONES ................................................................................................... 17

VOLUM ETRIC CHANGES OVER TIM E ...................................................................................... 19

SETTLEM ENT CO NSIDERA TIONS ..................................................................................................... 21

SCO UR RO D RESULTS ............................................................................................................................ 22

CO NTIN G EN CY PLANS ............................................................................................................................ 23

SUM M ARY AND CON CLUSIONS .......................................................................................................... 25

REFEREN CES .................................................................................................................................................... 26

APPENDIX I W ave Gage Data (July Septem ber, 1994) .................................................................... I-1

APPENDIX II P.E.P. Reef Top of Structure Elevation Data ..................................................................... II-2

APPENDIX III a). Tabulation of Volumetric Changes on Survey Profiles ............................................... III-1

b). Tabulation of Volume Changes Between Survey Profiles ........................................ III-1

c). Tabulation of Elevation Changes between Survey Profiles ...................................... III-1








ADVANCE SUMMARY


INTRODUCTION
This report presents the performance results of the Midtown Palm Beach Prefabricated Erosion
Prevention (PEP) Reef monitoring program extending from July 1992 through December 1994,
including the effects of Tropical Storm Gordon. Construction of the Reef began in July 1992 and
installation of the first 57 units was completed in August 1992. Installation of the remaining 273
units was completed in August 1993. This report extends, through December 1994, the analysis and
interpretation presented in the First Six Months Report (Dean et al., (1994a)) and Twelve Months
Report (Browder et al., (1994b)). Two recent profile and offshore surveys are available for
November 1994 and December 1994, the latter encompassing the effects of Tropical Storm Gordon
which affected the Palm Beach area on November 14 and 15, 1994. Wave gages are located
landward and seaward of the Reef in water depths of approximately 6 and 13 feet, respectively, and
have provided complete data from October 1993 through September 1994. Various data analysis
methods were applied herein to further quantify the Reef performance.


WAVE TRANSMISSION
During the period which is the focus of this report, a study was initiated to quantify more completely
the wave height reduction characteristics caused by the Reef. First, from September 20 through
October 7, two additional gages were installed adjacent to the longer term gages which are located
landward and seaward of the Reef. From October 7 through October 23, the gages were relocated
to approximately 500 feet south of the Reef in approximately the same water depths and at
approximately the same separation distance as the longer-term wave gages. The results of analyzing
these data indicate that the transmission coefficients resulting from the presence of the Reef are in
the range: 85% to 95%, considerably larger than determined from analysis of the two longer term
gages alone (65% to 85%) as shown in Figure 1. The latter values indicate greater energy reduction
than predicted by laboratory tests. Apparently wave energy dissipation occurs between the locations
of the two gages even in the absence of the Reef. The transmission coefficients for August and
September 1994 are 0.97 and 0.99, respectively (Table 1). It is believed that these anomalously high
values of transmission coefficients are due to one of the gages losing calibration. The longer term








gages were damaged by Tropical Storm Gordon and are now being refurbished.


SEDIMENT VOLUME CHANGES
Sediment continues to be eroded from within the 4,000 feet confines landward of the Reef. The
losses landward of the Reef were: 88,000 yds3 from July 1992 through December 1994, and 67,000
cubic yards from August 1993 through December 1994 amounting to average scour depths of
approximately 30 inches and 22 inches, respectively. The additional volumetric losses during the
two most recent intersurvey periods were: 19,300 yds3 (July to November 1994) and 10,000 yds3
(November to December 1994). The segment 2,000 feet south and landward of the Reef consistently
gained material from July 1992 to July 1994, but experienced losses from July 1994 to December
1994. Losses have generally occurred seaward of the Reef both within the 4,000 foot Reef confines
and 2,000 feet north and south of the Reef, although during some intersurvey periods, deposition has
occurred. These overall losses seaward of the Reef are approximately one-half those that have
occurred landward of the Reef alignment.


SETTLEMENT OF UNITS
The average settlement has been updated with the November and December 1994 surveys (Figure

19). The first 57 units have settled an average of 2.71 feet and the remaining 273 units have settled
an average of 1.87 feet. The slight increase (0.02 feet) in average elevation of the 57 units relative
to the July 1994 value is believed to be due to either incomplete removal of biological growth for
purposes of the surveys or to small survey errors. The decrease (0.27 feet) in elevation of the
remaining 273 units occurred during Tropical Storm Gordon and is primarily a result of settlement
of the 15 southerly units that were placed last. The maximum settlement experienced by a single unit
during Tropical Storm Gordon was 2.07 feet. This unit is the third from the south end of the Reef
system.


SCOUR
The scour rods indicate scour depths ranging from 0.0 feet to 1.4 feet over the period June 3, 1994
to September 9, 1994, a period of 110 days (Figure 20).








CONTINGENCY PLAN
To provide a basis for assessing the performance of the P.E.P. Reef installation, conditions were
established on various parameters prior to installation of the Reef, which if not met, could occasion
consideration by DEP and/or the Town of Palm Beach to modify or remove the installation. These
conditions, termed "performance criteria", herein are presented in Table 3 where the established and
measured performance criteria are compared. Of the nine parameters, five are found to meet the
performance criteria, three do not and one is not relevant (Table 3). The five meeting the
performance criteria are: (1) Wave height reduction, (2) alignment of units, (3) Increase in longshore
current, (4) Increase in rip current, and (5) Biological impacts. The three parameters not meeting the
performance criteria are: (1) Sediment accumulation, (2) Shoreline change, and (3) Settling of units.


SUMMARY STATEMENT
The results and interpretation presented herein are based on surveys in the period July 1992, to
December 1994 and on data reported previously. Analysis of results from future planned monitoring
will continue to contribute to the overall understanding of the Reef performance.


ACKNOWLEDGMENTS
The authors appreciate the sponsorship of this study supported by the Department of Environmental
Protection and the Town of Palm Beach. Sea Systems, Inc., of Pompano Beach, FL., carried out the
surveys in a responsive and professional manner.









INTRODUCTION


This report updates the performance of the Midtown Palm Beach Prefabricated Erosion Prevention
(PEP) Reef for the five month period from July 1994 to December 1994. Two additional surveys
are included. These were conducted by Sea Systems, Inc., in November and December 1994. The
first survey was completed a few days prior to Tropical Storm Gordon and the second survey was
commenced a few days after the passage of Gordon. This report follows the format of the First Six
and Twelve Months Reports, and the reader is referred to these reports for more information and
description of the Reef monitoring program. This report is organized as follows. The first five
sections present results from analysis of the wave data, profile surveys, settlement and scour
surveys, and evaluation of contingency plans. The final section provides a summary and preliminary
interpretations from the data available to date. The appendices include raw data from the wave
analysis and profile measurements.


WAVE DATA ANALYSIS


The full installation of the PEP Reef structure was completed in August 1993. The wave
data landward and seaward of the Reef have been collected by wave gages hourly since mid-
October, 1993. Those data have been analyzed in the Florida Coastal Data Network (FCDN)
format and stored in the Coastal & Oceanographic Engineering Laboratory (COEL) database.
This section abstracts the wave data and displays wave transmission coefficient data.


WAVE HEIGHT REDUCTION
One of the main objectives of a submerged breakwater is to reduce wave height (wave
energy) transmitted over the structure. In order to quantity the reduction of wave height, the
transmission coefficients were determined as follows:

S Hs nearshore
Kt = (1)
Hs offshore shoaled


Where Kt = transmission coefficient, Hs nearshore = nearshore significant wave height, and








Hs offshore shoaled = the offshore significant wave height shoaled in accordance with linear
wave theory. Table 1 lists the average significant wave height and transmission coefficient
for the period December 1993 through September 1994. Figure 1 and 2 present the
transmission coefficients for the nine month period of January to September 1994.


Table 1


Monthly Averaged significant wave height Wave Data in Feet


Month Hs Offshore Hs Nearshore Hs Shoaled Kt
December 93 2.10 1.84 2.43 0.76
January 94 2.30 2.07 2.66 0.78
February 94 1.97 1.77 2.26 0.78
March 94 1.67 1.51 1.94 0.78
April 94 1.84 1.67 2.00 0.84
May 94 1.28 1.12 1.44 0.78
June 94 0.79 0.69 0.85 0.81
July 94 0.98 0.89 1.02 0.87
August 94 1.05 1.08 1.11 0.97
September 94 1.12 1.21 1.18 0.99

For December 1993 through July 1994, the monthly average Kt for each month varies over
a fairly small range, from 0.78 to 0.87. The transmission coefficients for August and
September 1994 are significantly higher than for previous months. It is believed that the
explanation for this is that one of the gages has lost calibration. The raw wave data for July
through September 1994 are presented in Appendix I.



SEDIMENT CONSIDERATIONS


This section discusses shoreline changes, elevation changes, profile changes and zone
volume changes within the study areas. Tropical Storm Gordon impacted the P.E.P. study
areas in mid-November 1994; the purpose of the survey carried out in late November and












0.8


0.6


0.4


0.2


0.0



Figure 1







1.0


0.8


0.6


0.4


0.2


0 20 40 60 80Date101 121 141 161 181


Wave Transmission Coefficients Based on Significant Waves Height
January-June 1994


0 .0 1 I I I .- I I I I I -I I
183 193 203 214 224 234 244 255 265
Date
Figure 2 Wave Transmission Coefficients Based on Significant Waves Height
July 1994 -September 1994


275








early December 1994 was mainly to document the particular effects of that storm. As

mentioned before, construction of the Reef commenced in July 1992 and 57 units had been placed
by mid-August 1992 when Hurricane Andrew affected the area. The remaining 273 units were
installed by August 1993. Therefore, the comparisons in this section are for four periods as follows:

July 1994 to November 1994; November 1994 to December 1994; July 1992 to December 1994

(Total period during which any units were installed); and August 1993 to December 1994 (Period

during which all units were installed).


LONGSHORE SHORELINE CHANGE DISTRIBUTIONS
The changes in Mean High Water (MHW) shoreline positions are illustrated in Figure 3. Table 2

presents the average shoreline changes for the intersurvey periods and the cumulative shoreline

changes for the 4,000 feet landward of the Reef and for the 2,000 foot segments north and south of

the Reef. The elevation of MHW is +1.87 feet NGVD. For the two most recent intersurvey periods,
the shoreline changes are reasonably small within the Reef confines. The largest changes are in the

2,000 foot segment south of the Reef where a considerable recession occurs. The overall changes



1 5 0 I I I I I I I I

Reef
S100 -



-50




...... 07/94-11/94
------ 11/94-12/94

-150 I
-50 7 : 0/ 1 2/9


0 /93-12/94

u-150I-----------------------I
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
Distance from monument 92F (ft)


Figure 3 Longshore Distribution of Mean High Water shoreline changes








from July 1992 to December 1994 and August 1993 to December 1994 are recessional landward of
the Reef. From July 1992 to December 1994, there has been a net shoreline advancement in the
2,000 feet south of the Reef; however, from March 1994 to December 1994, this segment has
experienced a net recession. Referring to Table 2, the average shoreline changes for the two most
recent intersurvey periods are relatively small except in the south segment where the changes are
relatively large. It is important to note that of the 4,000 foot shoreline segment immediately
landward of the Reef, at least 2,000 feet has receded back to the seawalls and thus cannot recede
farther.


Table 2


Landward of Reef Alignment Average Shoreline Changes in feet


LONGSHORE VOLUME CHANGE DISTRIBUTION
This section presents the distribution of volume changes per lineal foot (yds3/lf) both landward and
seaward of the Reef along the 9,800 feet of monitored shoreline. These results are based on the
volume changes occurring for each of the profile lines between monitoring surveys. Appendix III-a
presents a tabulation of the volume changes on profile line for inner and outer profile sections;
Appendix III-b represents a tabulation of volume changes between profile lines for inner and outer
cells. A tabulation of the mean elevation changes between profile lines is also included in Appendix
III-c.


North 2000 ft Reef 4000 ft South 2000 ft
Survey
Months Intersurvey I Cumulative Intersurvey I Cumulative Intersurvey I Cumulative
Periods
change change change change change I change

07/92-04/93 9 -18.91 -18.19 -9.79 -9.79 38.11 38.11
I I I
04/93-08/93 13 4.18 -14.72 6.87 -2.92 0.08 38.19
I I I
08/93-12/93 17 13.38 -1.34 -0.76 -3.68 14.82 53.01
I I I
12/93-03/94 20 -18.68 -20.02 -5.41 -9.09 8.9 61.91
I I I
03/94-07/94 24 -2.41 -22.43 -11.13 -20.22 -11.31 50.60

07/94-11/94 28 3.03 -19.40 4.40 -15.82 -14.26 36.34
11/94-12/94 29 -5.93 -25.33 -3.94 -19.76 -7.02 29.32
11/94-12/94 29 -5.93 -25.33 -3.94 -19.76 -7.02 29.32








Figure 4 depicts the volumetric changes per lineal foot for the inner regions (landward of the Reef
alignment) for the periods noted earlier. The period July 1994 to November 1994 shows areas of
gains and losses, with the greatest fluctuations at the Clark Avenue beach and near the northern end
of the monitored region. The greatest overall changes during these periods are the gains near the
northern end of the monitored region and the consistent losses near the south end of the Reef. From
July 1992 to December 1994 and August 1993 to December 1994, the greatest changes have been
the erosion occurring landward of the Reef reaching losses of 45 yds3 in the Clark Avenue area for
the (July 1992 to December 1994) period.
Figure 5 shows the volume changes per linear foot for the outer region (seaward of Reef). The
volume changes in this region fluctuate and are relatively small compared to the inner region,
varying between -25 yds3/lf and +20 yds3/lf. The greatest change is erosional and occurred
immediately south of the Reef.


ELEVATION CHANGES
The elevation changes both landward, seaward and adjacent to the Reef will be presented in a
quantitative and also in a qualitative manner, as illustrated in Figures 6 through 9. The two
dimensional contour plots represent the changes (in feet) that occurred between monitoring surveys
in which the areas of accretion (solid lines) and erosion (dashed lines) are indicated.


July 1994 to November 1994
Figure 6 shows the elevation changes that occurred between the quarterly surveys of July 1994 and
November 1994. This figure indicates that material has accreted up to 4.0 feet at the 500 foot
location. The Twelve Month Report found that this area lost up to 4.0 feet elevation for the
December 1993 to March 1994 intersurvey period. Another noticeable characteristic change is the
accumulation of material at the Clarke Avenue pocket beach with a peak gain of 3.0 feet. As seen
in Figure 3, the shoreline had advanced seaward to a maximum change of 27 feet at this location
for the July 1994 to November 1994 period. From the AT&T gap south extending to 6,000 feet,
elevation decreases up to 2.0 feet have occurred. To the north of the study area, the elevation
changes fluctuate, but are predominantly negative. This period shows large overall changes,
reflecting the strong wave climate during this period. The area immediately south and landward of
the Reef experienced elevation decreases of up to 2 feet.










50
40
30
20
10
0
-10
-20
-30
-40
-50


0 1000 2000 3000 4000 5000 6000 7000 8000 9000 100
*-- North Distance from monument 92F (ft)


Figure 4 Longshore Distribution of the Volume Change for the Inshore Region


50
40
30
20
10
0
-10
-20
-30
-40
-50


0 1000 2000 3000 4000 5000 6000 7000 8000 9000 1000(
-.-- North Distance from monument 92F (ft)

Figure 5 Longshore Distribution of the Volume Change for the Offshore Region



























0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
--- North Distance from monument 92F (ft)


Isolines of Elevation Change (ft), July 1994 to November 1994.

Contours in 0.5 foot Intervals


0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
-- North Distance from monument 92F (ft)

Isolines of Elevation Change (ft), November 1994 to December 1994.

Contours in 0.5 foot Intervals


250
200
0 150
100
S50
o
0
a
2 -50
0-100
J-150
.-200
-250


Figure 6


250
200
0 150
(U
S100
w 50

0
; -50
.-i
Q)-100
|-150
.I-200
-250




Figure 7








November 1994 to December 1994
Figure 7 displays the elevation changes for November through December 1994 which includes the
effect of Tropical Storm Gordon. This figure shows areas of alternating erosion and deposition.
Substantial erosion occurred in the Clark Avenue beach area and at approximately the 1000 foot
location.



A' B'- E, C' D'
250
200 -


04
0 5.0 .- . 'o i '.%,......
150 :
c-100

250 -I i I I




-250
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
A J B EY C -- D -J
-- North Distance from monument 92F (ft)

Figure 8 Isolines of Elevation Change (ft), July 1992 to December 1994.
Contours in 0.5 foot Intervals


July 1992 to December 1994
Figure 8 represents the cumulative elevation changes from July 1992 to December 1994, a period
of 29 months. Several features are noteworthy. First, in the region to the north of the Reef, variable
changes have occurred with some areas losing up to 2.0 feet in elevation, also seen during individual
intersuvey periods. Structures may affect this area. Secondly, the area landward of the Reef is
almost entirely scoured with elevation reductions up to 5 feet in the Clark Avenue beach area. South
of the Reef and landward of its alignment, there have been elevation increases of up to 2 feet and
elevation decreases up to 3 feet.








August 1993 to December 1994
The net elevation changes are shown for this period in Figure 9. As noted previously, during this
period, all 330 units were in place. The most significant elevation changes are: (1) decreases of up
to 3 feet landward of the Reef, (2) no consistent patterns evident seaward of the Reef, (3) small
changes south of the Reef, and (4) increases of up to 3 feet north of the Reef and landward of its
alignment.


250
- 200
0 150
P 100
w 50
a
0
S -50
4--(
V-100
g-150
u)-200
=-250


Figure 9


0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
--- North Distance from monument 92F (ft)

Isolines of Elevation Change (ft), August 1993 to November 1994.
Contours in 0.5 foot Intervals


PROFILE CHANGES
Four profile lines (at Monuments 94D, 96F, 99B and 100B) were examined in the First Six Months
Report. These profile lines are illustrated in Figure 8 as A-A', B-B', C-C' and D-D'.


Section A-A' (Figure 10) is located approximately 1,500 feet north of the Reef. The nearshore
region has experienced a loss of sand, with the dry beach receding roughly 25 feet from July 1992
to December 1994.











15

10

5

0

-5

-10

-15


0 100 200 300 400 500 600
Distance from monument 94D (ft)


700 800
Seaward


Figure 10. Section A-A'. Profile 1,500 Feet North of Reef. Monument R09489D


15

10

5

0

-5

-10

-15


-20


0 100 200 300 400 500 600 700 800


Distance from monument 96F (ft)


Seaward --


Figure 11. Section B-B'. Profile 1,000 Feet South of North Reef End. Monument R09689D



14


Section B-B'
....... July 1992
__ August 1993
......... November 1994
__ December 1994
-S *


e w.. Reef
Seawall
-\











15 Section C-C'
....... July 1992
.10.. ----- August 1993
10 < ,, November 1994
December 1994


Reef

-10
15
-20
0 100 200 300 400 500 600 700 800


Distance from monument 99B (ft)


Seaward -


Figure 12. Section C-C'. Profile at South End of Reef. Monument R09974B


~II I I I I I


0 100 200 300 400 500 600 700 800
Distance from monument 100B (ft) Seaward--

Figure 13. Section D-D'. Profile 1,200 Feet South of Reef. Monument R10074B


- Seawall


Section D D'
S July 1992
: -- August 1993
............. ovem ber 1994
December 1994




77


-10
-15
-20


I I I I I I I I I I I I I I








Section B-B' (Figure 11) is approximately 1000 feet south of the north end of the Reef. The inner
region indicates large losses of material relative to the July 1992 survey. The erosion continued until
November 1994 with a maximum loss of 34.3 yds3/lf. The recent surveys show a small recovery.
The December 1994 surveys show there is still 31.3 yds3/lf of cumulative erosion, with a shoreline
recession of about 40.9 feet (back to the seawall). The outer region has experienced a small loss of
material compared with the inner region.


Section C-C' (Figure 12) is located at the south end of the Reef. The profile shows accretion
landward of the Reef for the July 1992 to August 1993 period. However, erosion occurred
subsequently. Changes seaward of the Reef have been small after August 1993.


Section D-D' (Figure 13) is representative of the profile lines south of the Reef. The offshore area
experienced slight fluctuations. The nearshore area has gained approximately 26.9 yds3/lf of sand
from pre-construction till July 1994. From July 1994 to December 1994, this area lost about 15.7
yds3/lf of material.


0 150 300 450 600 750 900 1050 1200


1350 1500


Distance from monument 97C (ft) Seaward E-

Figure 14. Section E-E'. Profile at Approximate Mid-Length of the Reef.


10

5

0

-5

-10

-15

-20








An additional profile line is illustrated on Figure 8 as section E-E' (Monument 97c) which is
approximately at the mid-length of the Reef. Figure 14 presents the profiles at this line. The
horizontal scale in this figure is compressed to show the presence of the offshore natural reef. The
region landward of the PEP Reef experienced a loss of material. This figure emphasizes the relative
locations and dimensions of the PEP Reef and the natural reef.


VOLUME CHANGES BY ZONES 94A Zone location
As described in the First Six Month Report, the volume changes per zone 1 zone 2 2000'
lineal foot are converted into volume change (yds3) by the "average 95E 'Re
end area method". A slightly modified calculation procedure has zo3 zone4 4000
been applied that resulted in minor changes in the previous results.
Appendix III contains the tables of the volume changes. The study
zone 5 zone 6 2000
areas are divided into six zones as shown in Figure 15. lo^A 24 24
240'+/-- -| 240'+/--

July 1994 to November 1994 Figure 15 Zone locations
Figure 16a shows the volume changes in the six zones for the period between July 1994 and
November 1994. All six zones have experienced erosion with a total loss of 48,100 yds3 of material.
The three inner zones and the three outer zones lost a subtotal of 34,900 yds3 and 13,200 yds3
respectively. Of the six zones, the smallest erosion occurred in zones one and two, whereas zones
three and five experienced the greatest erosion, amounting to more than 67% of the total erosion of
48,100 yds3. A significant characteristic change from previous patterns is the erosion of 12,900 yds3
of material from zone five during these four months. However, from July 1992 to July 1994, this
region had gained continuously, totaling 41,400 yds3.


November 1994 to December 1994
Figure 16b presents the volumetric changes occurring over the period encompassing Tropical Storm
Gordon. Zone one shows a small gain of 200 yds3. Zone two shows a small erosion, about 2,200
yds3. Zone three and zone five continue to show substantial losses of 10,000 yds3 and 12,800 yds3
with average shoreline recessions of 3.9 and 7.0 feet (Table 2), respectively. Again Zone four
experienced erosion, losing 7,700 yds3, whereas zone six experienced a relatively small gain of 1,200
yds3.













July 1994 to November 1994


-2700

I


-19300





-12900


-3700

Reef


-7300





-2200


240'+/-- 240'+/--

(a)


2000'
2000'





4000'





2000'
2000'


94A



95E


t




99B



101A


July 1992 to December 1994


-17800 -4600


SReef


-88300 -16100





16300 -19700


F- 240'+/-- 240'+/---


August 1993 to December 1994


-20
2000'





4000'





2000'


101A


f- 240' +/--- 240' +/--

(d)


Figure 16 (a,b,c,d) Volumetric Changes in Various Zones


101A


94A



95E


t

0
o


99B



101A


-8000 -4000


S'Reef


-66600 -11300





-8100 -6700


2000'





4000'





2000'


November 1994 to December 1994









July 1992 to December 1994
Figure 16c illustrates the cumulative volume changes occurring during the total twenty-nine month
period between July 1992 and December 1994. Five of the six regions have experienced negative
changes. The total change for the three outer zones is -40,400 yds3, and the total for the three inner
zones is -89,800 yds3. The smallest negative change occurred in zone two with erosion of 4,600
yds3. The only positive change is in zone five with an accumulation of 16,300 yds3 although
substantial losses have occurred during the last six months. Most of the loss was confined to zone
three, in the lee of the Reef, where the average loss of material over the 4,000 foot shoreline is
approximately 22.1 yds3/lf, and the average MHW shoreline has retreated roughly 19.8 feet in this
region. Overall during this twenty-nine month period, the six regions lost a total of 130,200 yds3 of
material. More than 67% of this total loss occurred in the lee of the Reef.


August 1993 to December 1994
These results, presented in Figure 16d encompass the seventeen month period during which all 330
Reef units have been in place. All six zones experienced net erosion during this period with the
greatest loss (-66,600 yds3) occurring landward of the Reef. The second greatest loss (-11,300 yds3)
occurred seaward of the Reef. The erosion for the remaining four zones varied between -4,000 yds3
and -8,100 yds3.


VOLUMETRIC CHANGES OVER TIME
Figure 17 presents the variations over time of the sediment volume changes in the various zones
landward of the Reef alignment. It is seen that the trends of volumetric loss immediately landward
of the Reef have continued with a total loss from July 1992 to December 1994 of 88,300 yds3 A
change is that the area south of the Reef which had been characterized by accretion until July 1994,
has experienced erosion over the last two intersurvey periods.


Figure 18 presents the variations over time of the sediment volume changes in the various zones
seaward of the Reef alignment. The overall changes are less than one-half those occurring landward
of the Reef. However, all net changes are erosional.













Landward of Reef Alignment


-.- 2000' N and S of Reef
---- within Reef confines (zone 3)
- -- Net
----- 2000'N(zone 1)
2000'S (zone 5)


P.E.Propr,


Y-I
Nor 2000




^ sUMO'~ Se,~r-)4
Sot 00 OD


S . ..
S. ',,. '" "

. -'-Tire (Months) ,


S t t t t tt
4 -- ..20 30
---"---- --- ,-,-
--a A








04/93 05/93 12/93 03/94 07/94 11/94 12/94


Figure 17 Cumulative Volume Changes Landward of Reef Alignment

Following Installation


Seaward of Reef Alignment


--4--

--0-
-4-a


2000' N and S of Reef
within Reef confines (zone 4)
Net
2000'N (zone 2)
2000'S (zone 6)


Time (Months)


"'I ---- P

! .. .


SB+- -




30
.w. , I


- 93 /93 12/93 3/94 7/94 11/94 12/94

4/93 8/93 12/93 3/94 7/94 11/94 12/94


Figure 18 Cumulative Volume Changes Seaward (240 feet) of Reef Alignment
Following Installation


100000

80000

60000


40000 -


20000



-20000

-40000

-60000

-80000

-100000


70000


50000


30000


10000


10000


-30000


-50000


-70000








SETTLEMENT CONSIDERATIONS


Figure 19 shows the history of average settlement of the original 57 units and the remaining
273 units with standard derivations ( error bars). The settlement history has been updated
to include the surveys of November and December 1994. From July 1992 to July 1994, the
average settlement for the original units and the remaining units are 2.73 and 1.60 feet
respectively, (Brower et al, (1994b)). The recent surveys found the total settlement of the
original 57 units is 2.71 feet relative to their estimated design depth in July 1992 and the
remaining units have settled an average of 1.87 feet. From July 1994 to December 1994, the
data indicate that the original units have actually risen by 0.02 feet. This is believed to be
due to either incomplete removal of biological growth during surveying or small survey
errors or a combination of the two. The average decrease in elevation of the remaining 273
units over the two recent Intersurvey periods is 0.27 feet. These data suggest that the original
57 units have reached a condition of equilibrium or near equilibrium settlement whereas the
273 units installed between July and August 1993 may settle a small additional amount in
future storms. The individual survey elevations are plotted in Appendix II for all 330 units.


4






S 2 .




--- Original 57 Units +/- 1 o
/ --- Remaining Units (273) +/- 1 a
0 . . I I . ,
0 6 12 18 24 30
t (months after installation)
Figure 19 Updated History of Average Settlement of Units Relative to Estimated Design
Depth (original 57 Units) and Field Inspection Depth (remaining 273 Units)








SCOUR ROD RESULTS


The twenty-eight scour rods were installed in July of 1993. The individual locations and other
information pertaining to the design details of the scour rods are presented in the First Six Months
Report. The scour rod results for five periods are illustrated in Figure 20. The fifth period is a 110
day period between June 3, 1994 and September 21, 1994. The largest changes of scour depth are
found at rod 4 and rod 5 which are adjacent to the south end of the Reef, (approximately 16 inches).
Secondly, at the AT&T gap, two disks (rod 18,19) scoured roughly 6 inches. To the north of the
Reef, the changes in scour ranged between 0.2 and 7.5 inches. The scour at rods 10, 11 and 12
which are located at the centerline of the Reef, were found to be less than 1.0 inch. Generally, the
scour changes for this period are relatively small, averaging 3.6 inches.


-10

-15


-25

-30


-35

-40




Figure 20 S


S I I I I I I


o g o o oO o,.o
0oo. o0


o v o o


0 0 V


V v

V
o[ V


0 07/29/93 to 08/14/93(20 days) V
V 08/14/93 to 12/15/93(123 days)
12/15/93 to 03/07/94(77 days)
03/07//94 to 06/03/94(88 days)
. 06/03/94 to 09/21/94(110 days)



3 5 10 15 20 25 3(
Scour rod number


Icour Rod Results For Five Periods








CONTINGENCY PLANS


To provide a basis for assessing the performance of the PEP Reef installation, conditions were
established on various parameters prior to installation of the Reef, which if not met, could result in
consideration by DEP and/or the Town of Palm Beach to modify or remove the PEP installation.
These conditions, termed "performance criteria", herein are presented in Table 3 where the
established and measured performance criteria are compared. It is seen that of the nine parameters
established, five of the criteria are met, three are not and one is not applicable due to the lack of
sediment accumulation. An additional complicating factor in the volumetric change is undoubtedly
due to the sediment deficient conditions in this area.


The following parameters are within the requirements:
(1) Wave Height Reduction
(2) Alignment of Units,
(3) Increase in Longshore Current,
(4) Increase in Rip Current, and
(5) Biological Impacts.


and the following parameters are not within the performance criteria:
(1) Sediment Accumulation
(2) Shoreline Change, and
(3) Settling Units.


The "Source of Accumulation" parameter is not addressed here since there has been a net erosion
in the lee of the structure.









Table 3 Comparison of Established and Measured Performance Criteria


Measured Results for Period
Parameter Criterion
____ _________July 1992-December 1994 August 1993-December 1994

Wave Height Greater Than 10% Meets This Criterion Within Meets This Criterion Within
Reduction Ability to Measure Measurement Capability

Sediment Greater Than In Lee of Reef, Sand Has In Lee of Reef, sand Has Been
Accumulation 10,000 yds3 per Been Lost at a Rate of Lost at a Rate of 44,400 yds3 per
Year 36,500 yds3 per Year Year

Source of Less Than 30% This Criterion Not Relevant, This Criterion Not Relevant,
Accumulation Should be From Since There Has Been No Since There Has Been No
Alongshore Accumulation Accumulation
Sources

Shoreline Advancement Recession of 1.05 feet per Recession of 0.68 feet per Year
Change Greater Than 5 feet Year
per Year

Settling of Less Than 1 foot 2.02 feet 1.63 feet
Units

Alignment of Less Than 1 foot Nil Nil
Units

Increase in Less Than 1 foot No Significant Effect No Significant Effect
Longshore per second Documented Documented
Current

Increase in Less Than 1 foot No Significant Effect No Significant Effect
Rip Current per second Documented Documented

Biological Should not No Significant Effect No Significant Effect
Impacts Interfere with the Documented Documented
Activity of Sea
Turtle
Nesting/Hatchlings









SUMMARY AND INTERPRETATION


In general the trends identified in previous monitoring reports have continued. A difference is that
the area south of the Reef and landward of its alignment has experienced erosion for the two most
recent intersurvey periods.


The patterns of shoreline and volumetric changes are consistent with the mechanism identified
earlier in the Six Months Report and also found in laboratory studies. Water is transported landward
over the Reef and because of the presence of the Reef over a portion of the water column does not
return seaward as readily as would otherwise occur. Some of this water is "ponded" landward
where it is redirected in a longshore direction acting as an additional sediment transport agent. Some
of the overall erosion experienced is believed to be due to the general sediment deficient conditions
in the area.


Studies conducted to quantify better the transmission coefficient due to the Reef have established
a range of 85% to 95%, considerably higher than the range 65% to 85% reported earlier. Apparently
some of the energy losses interpreted in earlier analyses were due to causes other than the presence
of the Reef.


Of the nine performance criteria established in the contingency plan, five of the criteria are met, three
are not and one is not applicable.










REFERENCES


Dean, R.G., Dombrowski, M.R., and Browder, A.E., 1994a. "Performance of the P.E.P. Reef
Installation, Town of Palm Beach, First Six Months Results." UFL/COEL-94/002, Coastal
and Oceanographic Engineering Department, University of Florida, Gainesville, Florida, 34

pp. plus 5 appendices.


Browder, A.E., Dombrowski, M.R., Dean, R.G., and Chen, R., 1994b. ""Performance of the
P.E.P. Reef Installation, Twelve Months Results." UFL/COEL-94/017, Coastal and
Oceanographic Engineering Department, University of Florida, Gainesville, Florida, 26
pp. plus 3 appendices.


Sea Systems Corporation, 1994c. "Monitoring and Evaluation of Submerged Offshore Breakwater
in the Town of Palm Beach, Second Annual Survey, November 1994. Pompano Beach,
Florida.


Sea Systems Corporation, 1994d. "Monitoring and Evaluation of Submerged Offshore Breakwater
in the Town of Palm Beach, Post-Storm (Gordon) Survey, December 1994. Pompano Beach,
Florida.









APPENDIX I


P.E.P. Reef

Offshore & Nearshore

Wave Gage Data

July September, 1994


(Consistent with FCDN, units are given in meters. 1 m = 3.2808 ft)












August 1994



+


+


September 1994


: ++
Fi 4-h
h


+i

F -A


13 26 39 53 66 79
date


Figure I-1 Offshore Gage Significant Wave Height, July September, 1994.


+
+


I


++ :

+ +ttH
+4
44+ +
S^^ Aft


July 1994


+ +4 ++
+ +

S + ++ +
1-+-- + + -I- + -+
+ -t- I f -I- t



+

+++~L '~


August 1994


Se]


+-



+i
+






ptember 1994


date


Figure I-2 Offshore Gage Modal Period, July September, 1994.


July 1994


1.0 [


0.5




0.0


44


10


. . . . . . . . . . . . . . . . . I . . . . . . . . . . . . . I . . .


. . . . . . . . . . . . I . . . ..... ..... ..... I' ..lll .... .... 1 . . . .. . . . . . . .












J 19





July 1994


+
-F


4 Spt r -H- St



August 1994 September 1


1994


date


Figure I-3 Offshore Gage Modal Wave Direction, July September, 1994.


13 26 39 53 66 79
date


Figure I-4 Offshore Gage Mean Current, July September, 1994.


0.5

0.4

0.3

0.2

0.1

0.0


IIIIIIIIJ1(11111111 IIIIIIIIIIIIIIII~II III


~i













July 1994



+ + ++
+


September 1994


++ 4 i+?':4 4 4^+
+ + + 4+ +


S+4
,-I +
-1- 4. +

14A-^ ^f^I ++ + +


+ +
+ +4


date


Figure I-5 Offshore Gage Mean Current Direction, July September, 1994.




1 .5I


August 1994


September 1994


+
+ t + -


S 13 26 39 53 66 79


date


Figure I-6 Nearshore Gage Significant Wave Height, July September, 1994.


+ 4


-H-


July 1994


1.0


4ts
4+9S
14*~


0.5




0.0


. . . . . . . . . . . . . . . . . . . . . . . . . I . . . . . . . . . .


11llllll11111ll1l ....................


August 1994
















10 + +
l+ + + + -


+ +


+t +


+ +
+ V SFHF
- -tHf- -H
+ +
+
+


+ +

A +b +


++ : +
+ +- fHI H -- H+F +I


++ T1

t+ +


+ -E + +
:-
+


+ +11-
+ff+ -H
+ ++


F
P^\


++


July 1994


August 1994


September 1994


date


Figure 1-7 Nearshore Gage Modal Period, July September, 1994.





N ,....... ...........


+ + +
July 1994






July 1994


August 1994


September 1994


date


Figure I-8 Nearshore Gage Modal Wave Direction, July September, 1994.


IIIIIIIIIII I IIIIIIIIII I IIIIII I III IIII III I II II I II I


l. l l. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


-tS"-
-t
~tt~i~t~:'



























13 26 39 53 66 79 92
date


Figure I-9 Nearshore Gage Mean Current, July September, 1994.


+4
i + T


+ iF++-1 +*^^ +f
^ + + + + +4++


+ +' : +

+H^t
++ -


August 1994


+

+t
F~$


September 1994


i TMHDi .1 .. iL-


LI-i


0 13 26 39 53 66 79
date

Figure 1-10 Nearshore Gage Mean Current Direction, July September, 1994.


0.5


0.4


0.3


0.2


0.1


0.0


+ -t


* 4


+


July 1994


4 +
9-


_ __ 1 _ _ ___ 11_1 1 __I_ _


+: + '+
. ,t+

















APPENDIX II


P.E.P. Reef

Top of Structure

Elevation Data













I I I I 1I II



-3
--H +----+ .
+_++- +++ + + +
++ ++ + +
+- --++ ++-H- -H-++





S-5 00
OOO00o 00 O 00 0 0

6 0..... .. o . ... .. ....
S' -' + Des ign
S 09/2
a D 08/93
v 12 93 .
0- A 03 94
0 06 94
x 11 94
N o 12/94
- II I I I i I l i I I
0 10 20 30 40 50 60
unit #













Figure II-1 Top of Structure Elevations Original 57 Units.


1-2












0~zm



U


..L..
mnC'sa
E0J0 %E7


E
I I-I0


-4



-5



-6


60


70


unit #


80


90


100


Figure II-2 Top of Structure Elevations Units 50-100.


110 120 130 140 150
unit #


Figure II-3 Top of Structure Elevations Units 100-150.


1I-3


-3


oe as-built
o 8/93
v 12/93
0 3/94
+ 6/94
x 11/94
"N 12/,94


-7



--8
5O


-3


-4



-5



-6


-7


-8 L
100


I j I I I I I I I I I I I I I I I I I I I


i s i l i s i r i l l s i p


W_









-3


-4



-5



-6


-7 v 12/93
0 3/94
+ 6/94
x 11/94
-- N 12/94
-- 8 I I I I I I 1 I I I ,
150 160 170 180 190
unit #

Figure II-4 Top of Structure Elevations Units 150-200.


-3


-4



-5



-6


-7


-82
200


210 220 230 240
unit #


Figure II-5 Top of Structure Elevations Units 200-250.


11-4


200


250









-3


-4



-5



-6


O0 -
-78


250 260 270 280 290
unit #

Figure II-6 Top of Structure Elevations Units 250-300.


-3


-4



-5



-6


-7


300
300


310 320 330 340
unYit #


Figure II-7 Top of Structure Elevations Units 300-330.


300


350









APPENDIX III


a). Tabulation of Volumetric Changes On Survey Profiles

b). Tabulation of Volume Changes Between Survey Profiles

c). Tabulation of Elevation Changes between Survey Profiles


III-1







Table Ill-la


P.E.P. Reef Monitoring Volumetric changes ON survey line dated July 1994 and November 1994

Profile Dist. to Length o Volume Change (cu. yards/linear foot) Inner Outer
Line Reef (ft) Cells (ft) Cell Cell 2 Cell 3 Cell 4 Cell 5 Cell 6 Cell 7 Cell 8 Subtotal Subtotal Total


92F
93B
93C
93D
93E
94A
94B
94C
94D
94F
94G
94H
94J
95A
95B
95C
95D
95E
95E1
95F
95F1
96A
96A1
96B
96B1
96C
96C1
96D
96E
96F
96G
979
97A
97B
97C
97D
97E
97F
98A
98B
98C
98E
98G
98H
981
98J
99A
99A1
99B
99B1
99C
99C1
99D
99E
99F
100A
100B
100C
100D
100E
100F
101A
101B
101C


60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
320 80
300 70
320 70
300 75
60
60
60
280 70
140 35
160 42
208 50
240 60
200 57
212 54
228 60
224 58
212 53
212 53
208 52
184 47
184 47
200 52
212 52
216 55
228 54
228 57
240 60
260 65
276 68
288 71
300 75
306 77
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60


0.69
0.22
0.31
0.22
0.00
0.68
-0.63
2.09
2.74
-1.95
-0.08
-0.02
-0.07
-4.66
-1.19
0.96
0.92
1.34
2.08
1.96
2.12
0.88
-0.03
0.85
4.86
-1.17
-1.63
-2.20
-1.55
-4.12
-2.70
-0.11
0.41
2.63
1.99
1.34
-0.05
0.28
-0.66
1.18
-1.71
-2.72
-2.33
-3.72
-4.06
-4.71
-3.54
-4.30
-2.58
-2.60
-1.16
-1.47
-0.24
0.10
-0.02
-0.74
0.30
-0.11
0.26
0.20
0.77
-0.95
-0.41
-0.42


-0.82 -0.04
4.04 4.67
1.82 10.89
7.65 13.43
0.93 -4.28
3.73 4.80
-3.04 -1.64
-1.98 0.17
0.35 -0.63
-1.18 1.10
-2.53 -0.95
-0.91 -4.67
0.07 3.73
-2.19 0.15
-0.07 0.50
0.62 0.37
1.17 -1.27
-6.21 -6.22
-5.58 -4.30
-4.47 -2.76
-1.61 -4.04
1.97 -2.52
3.87 -0.51
7.97 0.29
6.39 1.17
-1.47 -0.91
-2.44 -1.48
-2.47 -0.44
-0.58 -0.41
-4.33 -2.53
-3.38 -1.64
-4.75 -3.29
-4.13 -2.87
-0.51 -2.04
-0.57 -0.56
-1.58 0.22
-2.36 -1.66
-1.81 -1.67
-2.11 -0.41
-0.77 -0.79
-2.66 -0.99
-4.46 -2.92
-3.18 -3.01
-2.96 -2.61
-1.86 -1.77
-1.28 -1.83
0.02 -0.18
-2.68 -2.81
0.68 1.94
-4.18 0.75
-5.15 -1.30
-6.28 -6.46
-4.92 -5.55
-4.48 -1.12
-5.22 -3.04
-4.71 -2.14
-3.96 -3.14
-1.88 -2.99
-0.99 1.20
-0.39 0.34
1.30 2.26
-2.34 -1.02
1.76 1.54
-0.12 -1.29


Total -28.23 -83.21 -49.18 -38.33 -27.68 -16.67 -22.81 -34.19 -199.03 -101.32 -300.36

Vertical double lines indicate location of reef structure at time of monitoring survey.


11I-1


-0.66 -0.82 0.29
0.41 0.95 0.97
4.16 3.64 0.13
3.19 -0.81 0.03
-3.47 -3.24 -2.25
2.97 0.97 -0.41
-1.02 0.07 0.61
-1.92 -1.61 -0.25
-1.09 -0.02 -0.57
1.94 -0.07 -2.94
-1.38 -0.98 -0.83
-3.88 -3.59 -1.98
0.60 0.20 0.82
0.76 0.82 0.78
0.52 -0.30 -0.07
0.77 -1.64 -1.29
2.15 0.99 0.72
-3.27 0.23 -1.06
-1.50 0.11 -0.70
-1.07 -0.64 -0.31
0.45 -0.44 -0.20
-2.69 -1.45 -0.37
-1.20 -0.15 -0.32
-0.05 0.16 -0.59
0.57 -0.09 -0.36
-0.87 -0.50 -0.11
0.00 -0.28 -0.49
0.76 0.45 0.66
2.17 -0.29 -1.44
-0.45 0.40 0.66
0.17 0.64 1.48
-1.13 -0.22 0.52
-0.45 -0.41 -1.46
-0.70 0.09 -1.49
-0.59 -1.09 -1.79
1.81 1.73 -0.03
0.06 -0.27 0.41
-0.50 -1.04 -0.46
0.74 0.96 0.67
1.16 2.12 0.39
-0.04 1.44 0.62
-0.93 -0.70 -0.87
-1.59 -0.85 -0.70
-0.55 -0.65 -0.64
-1.95 -0.12 0.00
-2.23 -0.40 0.93
-2.20 0.13 -1.44
-1.53 -2.22 -1.77
-0.38 -1.89 -0.08
0.78 1.19 0.63
-0.30 -0.55 -0.46
-7.22 -3.35 -0.68
-3.71 -1.60 -1.31
0.79 -1.19 2.16
-3.57 -1.51 0.92
-1.07 -0.98 0.87
-3.40 -2.49 -0.72
-2.42 -1.60 -0.02
0.56 -0.81 -0.59
-3.08 -2.86 -1.78
-0.12 1.02 0.22
-2.74 -1.07 1.46
2.70 -0.43 -2.03
-1.60 -0.77 1.24


2.16 0.17
-1.12 -3.52
-3.42 -1.19
-0.31 -0.86
1.02 1.76
-3.31 -1.37
2.26 -0.13
-0.38 -0.15
0.90 1.55
-2.06 -1.37
-0.79 0.28
-0.07 -0.26
-0.13 -1.50
0.57 -2.10
1.12 1.31
-1.26 -1.16
-2.94 -3.62
-0.23 0.21
-0.41 -0.28
-1.10 -0.40
-0.99 -0.12
0.18 -0.16
-1.53 -0.85
-0.44 -0.58
-0.69 -0.59
0.00 -0.19
-0.47 -1.29
0.26 -0.15
-2.37 -0.71
0.82 1.04
-1.34 -0.62
-0.64 -0.79
-1.64 -3.27
-0.19 -0.74
-0.99 -0.38
-0.52 -0.82
-0.64 -0.10
-0.72 -0.46
0.42 -1.57
-0.99 -0.50
0.45 -0.17
-2.99 -4.52
0.59 0.75
-0.91 -0.67
0.67 -1.02
0.73 -2.06
-0.37 -0.57
-0.86 -1.66
-0.54 -0.32
-1.17 -0.86
-1.07 0.28
0.30 0.85
-0.03 0.00
-0.49 0.53
-0.75 -0.68
0.64 0.09
-0.77 -0.03
-0.38 -0.67
-0.80 -0.48
2.71 0.11
2.15 -0.01
0.83 1.42
-0.18 0.25
1.41 0.73


-0.83 1.80
9.34 -2.72
17.18 -0.85
24.48 -1.94
-6.82 -2.70
12.18 -4.12
-6.32 2.82
-1.64 -2.40
1.37 1.86
-0.09 -6.44
-4.93 -2.32
-9.48 -5.90
4.33 -0.61
-5.94 0.08
-0.24 2.06
2.72 -5.34
2.97 -4.86
-14.37 -0.85
-9.31 -1.27
-6.34 -2.46
-3.09 -1.75
-2.37 -1.81
2.14 -2.84
9.07 -1.45
12.99 -1.74
-4.42 -0.79
-5.56 -2.53
-4.35 1.22
-0.37 -4.81
-11.43 2.93
-7.54 0.16
-9.28 -1.14
-7.04 -6.78
-0.62 -2.32
0.26 -4.25
1.78 0.37
-4.02 -0.59
-3.71 -2.68
-2.44 0.48
0.77 1.01
-5.40 2.34
-11.03 -9.09
-10.11 -0.21
-9.83 -2.88
-9.64 -0.46
-10.05 -0.80
-5.91 -2.24
-11.32 -6.50
-0.34 -2.83
-5.25 -0.22
-7.91 -1.81
-21.43 -2.88
-14.42 -2.94
-4.71 1.01
-11.85 -2.02
-8.66 0.62
-10.20 -4.02
-7.41 -2.66
1.03 -2.68
-2.93 -1.82
4.21 3.38
-7.06 2.64
5.59 -2.39
-3.43 2.61


0.97
6.61
16.33
22.54
-9.52
8.06
-3.51
-4.04
3.22
-6.53
-7.26
-15.38
3.72
-5.87
1.82
-2.62
-1.89
-15.22
-10.58
-8.80
-4.83
-4.17
-0.70
7.62
11.25
-5.21
-8.09
-3.13
-5.19
-8.50
-7.38
-10.42
-13.82
-2.94
-3.99
2.15
-4.61
-6.39
-1.96
1.79
-3.06
-20.12
-10.32
-12.71
-10.10
-10.85
-8.15
-17.82
-3.16
-5.47
-9.72
-24.30
-17.36
-3.70
-13.87
-8.04
-14.22
-10.06
-1.65
-4.75
7.59
-4.42
3.19
-0.82







Table Ill-lb


P.E.P. Reef Monitoring Volume changes BETWEEN survey lines dated July 1994 and November 1994

Profile Dist. b/ Dist. to Area of cel Volume Change (cubic yards) Inner Outer Inner Cu Outer Cu
Lines lines(ft) Reef (ft) (sq.yards) Cell Cell 21 Cell 31 Cell 41 Cell 5 Cell 6 Cell 7 Cell 8Chg(cyds Chg(cyds Chg(cyds)Chgs(yads


92F-93B 400
93B-93C 200
93C-93D 200
93D-93E 200
93E-94A 200
94A-94B 200
94B-94C 200
94C-94D 200
94D-94F 300
94F-94G 150
94G-94H 150
94H-94J 200
94J-95A 200
95A-95B 100
95B-95C 100
95C-95D 100
95D-95E 100
95E-95E1 75
95E1-95F 75
95F-95F1 75
95F1-96A 75
96A-96A1 75
96A1-96B 75
96B-96B1 75
96B1-96C 75
96C-96C1 100
96C1-96D 100
96D-96E 200
96E-96F 200
96F-96G 200
96G-979 228
979-97A 200
97A-97B 200
97B-97C 200
97C-97D 200
97D-97E 200
97E-97F 150
97F-98A 150
98A-98B 150
98B-98C 150
98C-98E 200
98E-98G 200
98G-98H 100
98H-981 100
981-98J 100
98J-98A 100
99A-99A1 75
99A1-99B 75
99B-99B1 75
99B1-99C 75
99C-99C1 75
99C1-99D 75
99D-99E 150
99E-99F 200
99F-100A 200
100A-100B 200
100B-100C 200
100C-100D 200
100D-100E 200
100E-100F 200
100F-101A 200
101A-101B 200
101B-101C 200


2667
1333
1333
1333
1333
1333
1333
1333
2000
1000
1000
1333
1333
667
667
667
778
320 646
300 646
320 646
300 562
500
500
542
280 438
140 417
160 511
208 1244
240 1222
200 1144
212 1222
228 1256
224 1211
212 1178
212 1167
208 1089
184 767
184 800
200 858
212 892
216 1233
228 1267
228 650
240 694
260 744
276 783
288 612
300 631
306 569
500
500
500
1000
1333
1333
1333
1333
1333
1333
1333
1333
1333
1333


181 645 925 -51
53 586 1555 457
53 947 2431 736
22 858 914 -28
68 466 51 -50
5 69 316 195
146 -502 -147 -294
483 -163 -46 -301
118 -126 71 128
-152 -278 11 42
-7 -258 -422 -394
-9 -84 -94 -328
-473 -212 389 135
-292 -113 33 64
-11 27 44 64
94 90 -45 146
113 -252 -375 -56
128 -442 -395 -179
151 -377 -265 -96
153 -228 -255 -23
112 13 -246 -84
32 219 -114 -146
31 444 -8 -47
214 539 55 20
139 185 10 -11
-140 -196 -120 -44
-192 -246 -96 38
-376 -305 -85 293
-567 -491 -294 172
-683 -771 -417 -27
-281 -812 -493 -96
30 -888 -616 -158
304 -464 -491 -114
462 -108 -261 -129
333 -215 -35 121
129 -394 -145 186
17 -313 -250 -33
-29 -294 -156 18
39 -216 -90 142
-40 -257 -134 84
-443 -711 -392 -97
-506 -764 -593 -251
-303 -307 -281 -107
-389 -241 -219 -125
-439 -157 -180 -209
-413 -63 -101 -221
-294 -100 -112 -140
-258 -75 -33 -71
-194 -131 101 15
-141 -350 -21 18
-99 -428 -291 -282
-64 -420 -450 -410
-10 -704 -500 -219
8 -970 -416 -278
-77 -993 -518 -464
-44 -867 -529 -447
19 -584 -614 -581
15 -287 -179 -186
46 -138 154 -252
97 91 260 -320
-18 -104 124 -286
-136 -58 51 -5
-84 164 25 110


250 209 -670
109 -454 -472
16 -372 -205
-221 72 90
-266 -229 39
20 -105 -150
36 188 -28
-83 51 140
-527 -174 28
-283 -214 -81
-211 -64 2
-117 -20 -175
160 44 -360
36 85 -40
-68 -7 7
-29 -210 -239
-17 -158 -171
-66 -24 -3
-38 -57 -25
-19 -79 -19
-22 -30 -10
-26 -51 -38
-34 -74 -53
-36 -43 -44
-18 -26 -29
-30 -23 -74
9 -10 -72
-78 -211 -86
-77 -155 33
215 -52 42
200 -198 -141
-95 -228 -406
-295 -183 -400
-328 -118 -112
-182 -151 -120
38 -116 -91
-4 -101 -42
16 -22 -153
80 -43 -156
76 -41 -50
-25 -254 -469
-157 -241 -377
-67 -16 4
-32 -12 -84
47 70 -154
-25 18 -132
-120 -46 -84
-69 -52 -74
21 -64 -44
6 -84 -22
-43 -29 42
-74 10 32
64 -39 39
308 -124 -15
179 -11 -59
15 -13 6
-74 -115 -69
-61 -118 -114
-237 191 -36
-155 486 11
168 298 141
-58 64 167
-79 123 98


1700 -184
2651 -357
4166 -279
1766 -464
536 -682
586 -131
-796 42
-28 -54
191 -688
-377 -657
-1081 -617
-515 -651
-161 -53
-309 107
124 -164
284 -510
-570 -285
-888 -80
-587 -140
-354 -158
-205 -133
-9 -174
420 -161
827 -119
321 -95
-499 -166
-496 -65
-472 -359
-1180 -188
-1897 309
-1682 -98
-1632 -792
-765 -910
-35 -657
204 -389
-224 -23
-580 -246
-461 -165
-125 112
-347 252
-1643 -675
-2114 -930
-997 -155
-974 -167
-985 -63
-798 -152
-646 -328
-437 -350
-210 -114
-493 -76
-1100 -176
-1344 -218
-1434 -145
-1656 -101
-2051 -139
-1886 -339
-1761 -667
-637 -534
-189 -450
128 157
-285 602
-147 24
216 22


1700 -184
4352 -541
8518 -820
10284 -1284
10820 -1966
11405 -2097
10609 -2055
10581 -2109
10772 -2797
10396 -3454
9314 -4070
8799 -4721
8638 -4775
8329 -4668
8453 -4832
8737 -5342
8167 -5627
7279 -5707
6692 -5847
6339 -6005
6134 -6138
6126 -6312
6546 -6473
7373 -6592
7694 -6687
7195 -6852
6699 -6918
6227 -7276
5047 -7465
3149 -7156
1467 -7254
-165 -8046
-930 -8957
-966 -9614
-762 -10003
-985 -10025
-1565 -10271
-2026 -10437
-2152 -10325
-2499 -10073
-4142 -10748
-6256 -11678
-7253 -11832
-8227 -11999
-9212 -12062
-10010 -12214
-10655 -12542
-11092 -12892
-11302 -13006
-11796 -13082
-12896 -13258
-14240 -13476
-15674 -13620
-17330 -13722
-19382 -13861
-21268 -14200
-23029 -14868
-23666 -15402
-23855 -15852
-23727 -15695
-24012 -15093
-24159 -15069
-23943 -15047


Total 63914 -3369 -12114 -4004 -4456 -3794 -2377 -3352 -5527 -23942 -15046

Vertical double lines indicate location of reef structure at time of monitoring survey.







Table II-1c


P.E.P. Reef Monitoring Elevation changes BETWEEN survey lines dated July 1994 and November 1994

Profile Dist. b/ Dist. to Area of cell Elevation Change (feet) Inner Outer Total
Line lines(ft) Reef (ft) (sq.yards) Celll Cell 2 Cell31 Cell 4 Cell 5 Cell61 Cell 7 Cell 8 Chg(ft) Chg(ft) Chg(ft)


92F-93B
93B-93C
93C-93D
93D-93E
93E-94A
94A-94B
94B-94C
94C-94D
94D-94F
94F-94G
94G-94H
94H-94J
94J-95A
95A-95B
95B-95C
95C-95D
95D-95E
95E-95E1
95E1-95F
95F-95F1
95F1-96A
96A-96A1
96A1-96B
96B-96B1
96B1-96C
96C-96C1
96C1-96D
96D-96E
96E-96F
96F-96G
96G-979
979-97A
97A-97B
97B-97C
97C-97D
97D-97E
97E-97F
97F-98A
98A-98B
98B-98C
98C-98E
98E-98G
98G-98H
98H-981
981-98J
98J-98A
99A-99A1
99A1-99B
99B-99B1
99B1-99C
99C-99C1
99C1-99D
99D-99E
99E-99F
99F-100A
100A-100B
100B-100C
100C-100D
100D-100E
100E-100F
100F-101A
101A-101B
101B-101C


2667
1333
1333
1333
1333
1333
1333
1333
2000
1000
1000
1333
1333
667
667
667
778
320 646
300 646
320 646
300 562
500
500
542
280 438
140 417
160 511
208 1244
240 1222
200 1144
212 1222
228 1256
224 1211
212 1178
212 1167
208 1089
184 767
184 800
200 858
212 892
216 1233
228 1267
228 650
240 694
260 744
276 783
288 612
300 631
306 569
500
500
500
1000
1333
1333
1333
1333
1333
1333
1333
1333
1333
1333


0.20
0.12
0.12
0.05
0.15
0.01
0.33
1.09
0.18
-0.46
-0.02
-0.02
-1.07
-1.32
-0.05
0.42
0.43
0.59
0.70
0.71
0.60
0.19
0.19
1.19
0.95
-1.01
-1.13
-0.91
-1.39
-1.79
-0.69
0.07
0.75
1.18
0.86
0.35
0.06
-0.11
0.14
-0.13
-1.08
-1.20
-1.40
-1.68
-1.77
-1.58
-1.44
-1.23
-1.02
-0.85
-0.59
-0.38
-0.03
0.02
-0.17
-0.10
0.04
0.03
0.10
0.22
-0.04
-0.31
-0.19


0.73
1.32
2.13
1.93
1.05
0.16
-1.13
-0.37
-0.19
-0.84
-0.77
-0.19
-0.48
-0.51
0.12
0.40
-0.97
-2.05
-1.75
-1.06
0.07
1.32
2.67
2.98
1.27
-1.41
-1.44
-0.74
-1.21
-2.02
-1.99
-2.12
-1.15
-0.27
-0.55
-1.09
-1.22
-1.10
-0.76
-0.86
-1.73
-1.81
-1.42
-1.04
-0.63
-0.24
-0.49
-0.36
-0.69
-2.10
-2.57
-2.52
-2.11
-2.18
-2.23
-1.95
-1.31
-0.65
-0.31
0.20
-0.23
-0.13
0.37


1.04 -0.06 0.03
3.50 1.03 1.03
5.47 1.65 0.64
2.06 -0.06 -0.91
0.12 -0.11 -0.51
0.71 0.44 0.24
-0.33 -0.66 -0.35
-0.10 -0.68 -0.37
0.11 0.19 -0.02
0.03 0.13 -0.24
-1.27 -1.18 -1.03
-0.21 -0.74 -0.76
0.87 0.30 0.23
0.15 0.29 0.12
0.20 0.29 -0.44
-0.20 0.66 -0.15
-1.45 -0.22 0.23
-1.83 -0.83 0.06
-1.23 -0.45 -0.09
-1.19 -0.11 -0.19
-1.31 -0.45 -0.38
-0.68 -0.88 -0.36
-0.05 -0.28 0.00
0.30 0.11 0.01
0.07 -0.08 -0.15
-0.86 -0.31 -0.28
-0.57 0.22 0.05
-0.21 0.71 0.04
-0.72 0.42 0.03
-1.09 -0.07 0.27
-1.21 -0.24 0.10
-1.47 -0.38 -0.15
-1.22 -0.28 -0.08
-0.66 -0.33 -0.25
-0.09 0.31 0.17
-0.40 0.51 0.40
-0.98 -0.13 -0.39
-0.58 0.07 -0.02
-0.32 0.50 0.81
-0.45 0.28 0.90
-0.95 -0.24 0.18
-1.41 -0.60 -0.37
-1.30 -0.49 -0.35
-0.95 -0.54 -0.17
-0.73 -0.84 -0.10
-0.38 -0.85 -0.05
-0.55 -0.68 -0.38
-0.16 -0.34 -0.73
0.53 0.08 -0.14
-0.12 0.11 0.14
-1.75 -1.69 -0.88
-2.70 -2.46 -1.12
-1.50 -0.66 -0.63
-0.94 -0.63 -0.61
-1.17 -1.04 -0.56
-1.19 -1.01 -0.78
-1.38 -1.31 -0.92
-0.40 -0.42 -0.54
0.35 -0.57 -0.83
0.59 -0.72 -0.42
0.28 -0.64 -0.01
0.12 -0.01 -0.34
0.06 0.25 -0.27


0.28
0.25
0.04
-0.50
-0.60
0.05
0.08
-0.19
-0.79
-0.85
-0.63
-0.26
0.36
0.16
-0.31
-0.13
-0.07
-0.31
-0.18
-0.09
-0.12
-0.16
-0.20
-0.20
-0.12
-0.21
0.05
-0.19
-0.19
0.56
0.49
-0.23
-0.73
-0.84
-0.47
0.10
-0.01
0.06
0.28
0.26
-0.06
-0.37
-0.31
-0.14
0.19
-0.10
-0.59
-0.33
0.11
0.04
-0.26
-0.45
0.19
0.69
0.40
0.03
-0.17
-0.14
-0.53
-0.35
0.38
-0.13
-0.18


63914 -13.12 -38.22 -21.70 -15.72 -11.64


-7.64 -11.24 -15.93 -88.73 -46.36 -135.15


Vertical double lines indicate location of reef structure at time of monitoring survey.


0.23
-1.02
-0.84
0.16
-0.51
-0.24
0.42
0.12
-0.26
-0.64
-0.19
-0.05
0.10
0.38
-0.03
-0.94
-0.61
-0.11
-0.26
-0.36
-0.16
-0.30
-0.44
-0.24
-0.18
-0.17
-0.06
-0.51
-0.38
-0.14
-0.49
-0.54
-0.45
-0.30
-0.39
-0.32
-0.40
-0.08
-0.15
-0.14
-0.62
-0.57
-0.08
-0.05
0.28
0.07
-0.22
-0.25
-0.34
-0.50
-0.17
0.06
-0.12
-0.28
-0.02
-0.03
-0.26
-0.27
0.43
1.09
0.67
0.15
0.28


1.91 -0.21
5.97 -0.80
9.37 -0.63
3.97 -1.04
1.21 -1.54
1.32 -0.29
-1.79 0.09
-0.06 -0.12
0.29 -1.03
-1.13 -1.97
-3.24 -1.85
-1.16 -1.46
-0.36 -0.12
-1.39 0.48
0.56 -0.74
1.28 -2.29
-2.20 -1.10
-4.12 -0.37
-2.73 -0.65
-1.64 -0.73
-1.09 -0.71
-0.05 -1.04
2.52 -0.96
4.58 -0.66
2.20 -0.65
-3.59 -1.19
-2.91 -0.38
-1.14 -0.87
-2.90 -0.46
-4.97 0.81
-4.13 -0.24
-3.90 -1.89
-1.90 -2.25
-0.09 -1.67
0.53 -1.00
-0.62 -0.06
-2.27 -0.96
-1.73 -0.62
-0.44 0.39
-1.17 0.85
-4.00 -1.64
-5.01 -2.20
-4.60 -0.71
-4.21 -0.72
-3.97 -0.25
-3.06 -0.58
-3.16 -1.61
-2.08 -1.66
-1.11 -0.60
-2.96 -0.46
-6.60 -1.05
-8.06 -1.31
-4.30 -0.43
-3.73 -0.23
-4.62 -0.31
-4.24 -0.76
-3.96 -1.50
-1.43 -1.20
-0.43 -1.01
0.29 0.35
-0.64 1.35
-0.33 0.05
0.49 0.05


1.71
5.16
8.75
2.93
-0.33
1.02
-1.70
-0.18
-0.74
-3.10
-5.09
-2.62
-0.48
-0.91
-0.18
-1.01
-3.30
-4.49
-3.38
-2.38
-1.80
-1.10
1.56
3.92
1.55
-4.79
-3.29
-2.00
-3.36
-4.16
-4.37
-5.79
-4.15
-1.76
-0.47
-0.68
-3.23
-2.35
-0.05
-0.32
-5.64
-7.21
-5.32
-4.93
-4.22
-3.64
-4.77
-3.74
-1.71
-3.42
-7.65
-9.37
-4.74
-3.95
-4.93
-5.01
-5.46
-2.64
-1.44
0.64
0.71
-0.28
0.53







Table lll-2a


P.E.P. Reef Monitoring Volumetric changes ON survey line dated November 1994 and December 1994

Profile Dist. to Length of Volume Change (cu. yards/linear foot) Inner Outer
Line Reef (ft) Cells (ft) Celll Cell 2 Cell 3 Cell 4 Cell 5 Cell 6 Cell 7 Cell 8 Subtotal Subtotal Total


92F
93B
93C
93D
93E
94A
94B
94C
94D
94F
94G
94H
94J
95A
95B
95C
95D
95E
95E1
95F
95F1
96A
96A1
96B
96B1
96C
96C1
96D
96E
96F
96G
979
97A
97B
97C
97D
97E
97F
98A
98B
98C
98E
98G
98H
981
98J
99A
99A1
99B
99B1
99C
99C1
99D
99E
99F
100A
100B
100C
100D
100E
100F
101A
101B
101C


60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
320 80
300 70
320 70
300 75
60
60
60
280 70
140 35
160 42
208 50
240 60
200 57
212 54
228 60
224 58
212 53
212 53
208 52
184 47
184 47
200 52
212 52
216 55
228 54
228 57
240 60
260 65
276 68
288 71
300 75
306 77
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60


-7.42
-2.10
0.05
-0.09
-0.35
-1.62
0.00
-0.72
-1.77
-1.29
-2.03
-0.18
0.00
2.81
2.23
-0.26
0.61
-4.78
-4.62
-5.54
-1.53
-1.26
-0.61
-2.84
-5.68
-1.26
0.09
-0.20
1.16
1.10
0.58
-0.93
-0.33
-1.03
-1.79
-1.99
-1.14
-1.07
-1.29
-0.39
-0.49
-2.14
0.54
-0.90
-3.84
-5.56
-6.44
-6.44
-4.74
-0.57
-2.09
-1.99
-3.66
-3.08
-2.53
-4.60
-2.59
-2.09
-2.85
-4.06
-2.97
-1.03
-3.62
-3.06


1.83
-6.74
-4.62
-3.59
-2.18
-4.95
2.23
2.76
0.35
-0.46
-0.87
-1.27
-3.50
1.45
0.88
-0.49
-0.01
2.37
0.64
0.22
-1.78
-4.03
-5.34
-7.42
-6.45
-0.46
0.66
0.28
0.28
1.37
-0.63
1.86
1.49
-1.40
-0.83
-0.31
0.31
0.37
0.97
0.41
2.44
1.18
0.58
-0.13
-1.29
-2.30
-2.52
-2.50
-1.87
-0.46
1.36
-0.08
-2.13
-0.26
-1.12
-3.03
-2.61
-3.04
-2.64
-4.54
-3.52
-2.24
-4.55
-0.82


-118.28 -72.69 -19.73 -13.82


-28.51 2.40 0.64 -8.02 -224.59 -33.50 -258.07


Vertical double lines indicate location of reef structure at time of monitoring survey.


2.64 2.94 -0.48
1.23 2.55 2.66
-2.11 1.38 3.58
-2.16 0.72 1.72
-0.30 3.33 3.56
-1.61 -1.03 -0.51
2.77 1.59 0.14
1.57 -0.60 -4.01
0.95 0.90 -1.76
-0.82 -0.84 2.85
0.96 0.68 -1.73
0.65 3.24 3.28
-2.98 -0.46 -1.20
-0.25 0.79 0.36
-0.20 0.39 1.43
-0.14 -0.94 -0.77
0.60 -0.71 1.54
2.94 0.57 -2.63
0.99 -0.21 -1.14
-0.72 -1.58 0.22
-0.93 -2.43 -1.03
0.07 -0.85 -0.40
-1.65 -1.52 -0.68
-2.23 -2.11 -1.79
-3.60 -2.88 -2.43
-0.13 0.33 0.35
0.21 -0.48 0.21
-0.67 -1.14 -2.09
-0.28 0.18 -2.27
0.34 -1.21 -0.47
-2.02 -1.42 -1.18
1.33 0.10 -1.63
2.34 1.01 -0.38
-0.45 -0.35 -0.22
-0.51 0.90 -0.33
-0.79 -0.61 -2.37
0.30 -1.26 0.00
1.90 0.41 0.57
0.68 -0.23 -0.57
0.75 -0.43 -2.70
1.30 -0.20 -1.77
-1.91 -2.17 0.26
1.08 -0.38 -0.80
0.41 -1.88 -1.73
-1.32 -0.23 -0.65
-0.76 0.79 -0.28
-1.70 -0.88 -1.73
-1.78 -1.38 -0.81
-2.18 0.29 -0.39
-0.98 -0.74 -2.18
-0.50 0.29 -3.75
2.06 2.28 -0.14
0.55 -0.48 -2.11
-0.35 0.25 1.80
-1.59 -0.83 -1.15
-1.38 -1.22 1.17
-0.64 0.35 -0.62
-1.59 0.48 1.35
-1.18 -0.09 -0.21
-1.60 -0.72 -0.77
-1.66 -0.74 -0.68
-0.28 1.83 1.40
-3.08 -6.14 -3.24
0.68 -1.02 0.82


-3.68
1.00
5.86
2.98
0.92
2.70
-1.29
-3.43
-1.50
3.00
-2.67
0.69
-1.31
1.16
1.23
-0.63
2.62
-3.17
-0.34
-0.08
0.59
-0.35
0.02
0.12
-1.94
0.19
0.07
-1.91
-0.47
-0.75
-2.09
-1.75
-1.42
-0.41
0.50
-1.38
-0.50
0.43
-0.94
-0.53
-1.50
1.32
0.82
-0.60
-2.50
0.91
2.32
1.16
0.35
-2.02
1.26
0.05
0.83
1.19
-1.12
2.28
-0.43
1.20
0.98
1.64
1.63
-0.23
-0.74
2.06


-3.27
0.76
7.34
2.67
-1.61
4.03
-2.93
-2.51
-0.19
1.36
-1.58
-0.11
-0.10
-0.43
1.75
-1.20
3.18
-4.36
-0.35
-0.33
2.52
0.24
0.02
-2.23
-0.48
-0.37
-0.78
-1.27
-0.14
-0.79
-0.39
0.57
-0.51
-2.91
0.33
-0.04
0.25
0.06
-1.37
0.40
-1.23
-0.20
-1.04
-0.46
-0.37
1.38
2.15
2.44
-1.62
1.25
1.55
0.31
1.04
1.47
0.21
1.29
-1.12
1.12
-0.47
-0.44
0.89
-0.81
-0.57
-1.36


-0.01 -9.66
-5.06 7.64
-5.30 20.28
-5.11 8.06
0.51 0.75
-9.21 6.99
6.60 -4.46
3.02 -12.51
0.43 -2.55
-3.40 6.77
-1.26 -7.19
2.44 3.63
-6.94 -1.40
4.80 -0.47
3.30 5.62
-1.83 -2.02
0.49 6.73
1.10 -13.09
-3.19 -2.12
-7.62 0.53
-6.67 3.39
-6.08 0.46
-9.12 -1.25
-14.61 -5.64
-18.60 -5.45
-1.52 0.45
0.48 -1.55
-1.74 -4.95
1.34 -4.72
1.60 -1.48
-3.49 -5.31
2.36 -0.84
4.51 -2.39
-3.23 -5.89
-2.24 0.20
-3.69 -4.29
-1.79 0.60
1.61 0.69
0.13 -1.83
0.34 -2.74
3.04 -3.85
-5.05 3.60
1.82 -1.35
-2.51 -3.42
-6.69 -2.70
-7.83 2.12
-11.53 1.22
-12.11 5.13
-8.50 -1.54
-2.76 -2.96
-0.94 -1.17
2.25 -0.50
-5.72 -0.22
-3.44 3.81
-6.07 -2.42
-10.23 4.87
-5.50 -3.10
-6.24 3.80
-6.76 -1.44
-10.92 1.07
-8.89 2.67
-1.72 -1.51
-17.41 -5.69
-4.23 1.09


-9.67
2.58
14.98
2.95
1.26
-2.22
2.14
-9.49
-2.12
3.37
-8.45
6.07
-8.34
4.33
8.92
-3.85
7.22
-11.99
-5.31
-7.09
-3.28
-5.61
-10.37
-20.25
-24.04
-1.07
-1.07
-6.69
-3.38
0.11
-8.80
1.51
2.12
-9.12
-2.04
-7.98
-1.19
2.30
-1.70
-2.40
-0.80
-1.45
0.47
-5.93
-9.39
-5.72
-10.31
-6.98
-10.04
-5.72
-2.11
1.76
-5.94
0.37
-8.49
-5.36
-8.60
-2.45
-8.20
-9.85
-6.22
-3.23
-23.09
-3.13







Table lll-2b


P.E.P. Reef Monitoring Volume changes BETWEEN survey lines dated November 1994 and December 1994

Profile Dist. b/ Dist. to Area ofcell Volume Change (cubic yards) Inner Outer Inner Cu Outer Cum
Lines lines(ft) Reef (ft) (sq.ards) Celll Cell 2 Cell 3 Cell 4 Cell 5 Cell 6 Cell 7 Cell 8 Ch(cyds Chg(cyds Chg(cyds) Chgs(yads)


92F-93B 400
93B-93C 200
93C-93D 200
93D-93E 200
93E-94A 200
94A-94B 200
94B-94C 200
94C-94D 200
94D-94F 300
94F-94G 150
94G-94H 150
94H-94J 200
94J-95A 200
95A-95B 100
95B-95C 100
95C-95D 100
95D-95E 100
95E-95E1 75
95E1-95F 75
95F-95F1 75
95F1-96A 75
96A-96A1 75
96A1-96B 75
96B-96B1 75
96B1-96C 75
96C-96C1 100
96C1-96D 100
96D-96E 200
96E-96F 200
96F-96G 200
96G-979 228
979-97A 200
97A-97B 200
97B-97C 200
97C-97D 200
97D-97E 200
97E-97F 150
97F-98A 150
98A-98B 150
98B-98C 150
98C-98E 200
98E-98G 200
98G-98H 100
98H-981 100
981-98J 100
98J-98A 100
99A-99A1 75
99A1-99B 75
99B-99B1 75
99B1-99C 75
99C-99C1 75
99C1-99D 75
99D-99E 150
99E-99F 200
99F-100A 200
100A-100B 200
100B-100C 200
100C-100D 200
100D-100E 200
100E-100F 200
100F-101A 200
101A-101B 200
101B-101C 200


2667
1333
1333
1333
1333
1333
1333
1333
2000
1000
1000
1333
1333
667
667
667
778
320 646
300 646
320 646
300 562
500
500
542
280 438
140 417
160 511
208 1244
240 1222
200 1144
212 1222
228 1256
224 1211
212 1178
212 1167
208 1089
184 767
184 800
200 858
212 892
216 1233
228 1267
228 650
240 694
260 744
276 783
288 612
300 631
306 569
500
500
500
1000
1333
1333
1333
1333
1333
1333
1333
1333
1333
1333


-1903 -982 773
-205 -1136 -88
-4 -821 -427
-43 -577 -246
-197 -713 -191
-162 -272 116
-71 499 434
-249 311 252
-459 -17 20
-249 -100 11
-166 -161 121
-18 -477 -233
281 -204 -324
252 117 -23
99 20 -17
18 -25 23
-209 118 177
-352 113 148
-381 32 10
-265 -59 -62
-105 -218 -32
-70 -351 -59
-130 -479 -145
-319 -520 -218
-260 -259 -140
-58 10 4
-5 47 -23
96 56 -95
226 165 7
168 74 -167
-35 123 -69
-126 335 366
-136 9 189
-282 -223 -96
-378 -114 -130
-312 0 -48
-166 51 165
-177 100 193
-126 104 107
-67 214 154
-264 362 -61
-160 176 -84
-18 22 74
-237 -71 -46
-470 -179 -104
-600 -241 -123
-483 -188 -130
-419 -164 -149
-199 -88 -118
-100 34 -56
-153 48 58
-212 -83 98
-506 -179 16
-561 -139 -193
-712 -416 -297
-719 -565 -203
-468 -566 -223
-495 -568 -277
-691 -718 -278
-703 -806 -326
-400 -577 -194
-465 -680 -336
-669 -538 -240


1099 436 -537 -502
393 624 686 811
210 530 884 1001
405 528 390 105
230 305 362 241
56 -37 140 110
100 -387 -472 -543
30 -577 -493 -270
10 164 225 176
-12 84 24 -17
294 116 -149 -127
278 208 -61 -21
33 -84 -14 -53
59 90 120 66
-28 33 30 27
-83 38 100 99
-7 -55 -28 -59
14 -142 -132 -176
-67 -34 -16 -25
-150 -30 19 82
-123 -54 9 103
-89 -41 -12 10
-136 -93 6 -83
-187 -158 -68 -102
-96 -78 -65 -32
-7 28 13 -57
-81 -94 -92 -103
-97 -436 -238 -141
-103 -274 -122 -93
-263 -166 -284 -118
-132 -282 -384 18
111 -202 -316 6
66 -61 -183 -342
54 -56 8 -258
29 -270 -88 30
-188 -237 -188 21
-64 42 -5 23
14 0 -38 -98
-49 -245 -110 -73
-47 -335 -152 -62
-237 -151 -18 -143
-255 -54 214 -123
-113 -127 11 -75
-106 -119 -155 -42
28 -46 -79 50
-4 -100 162 177
-85 -95 131 172
-41 -45 57 31
-17 -97 -62 -14
-17 -222 -29 105
96 -146 49 70
67 -84 33 51
-17 -23 152 188
-58 65 7 168
-206 1 116 150
-87 55 185 17
83 74 77 0
39 114 217 65
-81 -98 261 -92
-146 -144 327 45
109 73 140 8
-432 -184 -97 -139
-717 -242 132 -193


-16249 -11334 -2755


-721 -2797 600


Vertical double lines indicate location of reef structure at time of monitoring survey.

111-5


-1014 -405
-1036 2792
-1041 2834
-461 881
-870 774
-261 253
962 -1697
345 -1506
-446 633
-350 -31
88 -267
-450 223
-214 -187
405 258
74 180
-67 235
79 -318
-78 -571
-405 -60
-536 147
-478 145
-570 -29
-890 -258
-1245 -416
-754 -187
-52 -55
-63 -325
-39 -967
294 -620
-189 -680
-113 -616
687 -323
128 -828
-547 -569
-593 -409
-549 -369
-14 97
131 -85
35 -343
254 -494
-200 -25
-323 225
-35 -238
-460 -306
-726 -29
-968 167
-886 238
-773 135
-422 -168
-139 -155
49 -62
-130 -27
-687 269
-951 139
-1630 245
-1573 177
-1175 70
-1300 235
-1768 -37
-1981 374
-1061 116
-1913 -720
-2164 -459


-1014
-2050
-3091
-3551
-4421
-4682
-3721
-3376
-3822
-4172
-4083
-4533
-4748
-4343
-4270
-4337
-4257
-4336
-4741
-5277
-5755
-6325
-7215
-8460
-9214
-9266
-9329
-9368
-9074
-9263
-9376
-8690
-8562
-9109
-9702
-10250
-10264
-10133
-10098
-9844
-10045
-10368
-10402
-10862
-11588
-12556
-13443
-14216
-14638
-14777
-14727
-14858
-15545
-16496
-18126
-19699
-20874
-22174
-23942
-25923
-26984
-28896
-31060


-405
2387
5221
6102
6876
7129
5432
3926
4560
4528
4262
4485
4298
4555
4735
4971
4652
4082
4022
4169
4313
4284
4026
3610
3423
3367
3042
2075
1455
775
160
-164
-991
-1560
-1969
-2339
-2242
-2327
-2670
-3164
-3189
-2964
-3203
-3509
-3538
-3371
-3133
-2999
-3167
-3322
-3384
-3411
-3142
-3002
-2757
-2580
-2510
-2274
-2312
-1938
-1822
-2542
-3001


63914


50 -853 -31u59 -2999







Table llI-2c


P.E.P. Reef Monitoring Elevation changes BETWEEN survey lines dated November 1994 and December 1994

Profile Dist. b/ Dist. to Area of cell Elevation Change (feet) Inner Outer Total
Line lines(ft) Reef (ft) (sq.yards) Cell Cell 2 Cell 3 Cell 41 Cell 51 Cell 61 Cell 7 Cell 8 Chg(ft) Chg(ft) Chg(ft


92F-93B 400
93B-93C 200
93C-93D 200
93D-93E 200
93E-94A 200
94A-94B 200
94B-94C 200
94C-94D 200
94D-94F 300
94F-94G 150
94G-94H 150
94H-94J 200
94J-95A 200
95A-95B 100
95B-95C 100
95C-95D 100
95D-95E 100
95E-95E1 75
95E1-95F 75
95F-95F1 75
95F1-96A 75
96A-96A1 75
96A1-96B 75
96B-96B1 75
96B1-96C 75
96C-96C1 100
96C1-96D 100
96D-96E 200
96E-96F 200
96F-96G 200
96G-979 228
979-97A 200
97A-97B 200
97B-97C 200
97C-97D 200
97D-97E 200
97E-97F 150
97F-98A 150
98A-98B 150
98B-98C 150
98C-98E 200
98E-98G 200
98G-98H 100
98H-981 100
981-98J 100
98J-98A 100
99A-99A1 75
99A1-99B 75
99B-99B1 75
99B1-99C 75
99C-99C1 75
99C1-99D 75
99D-99E 150
99E-99F 200
99F-100A 200
100A-100B 200
100B-100C 200
100C-100D 200
100D-100E 200
100E-100F 200
100F-101A 200
101A-101B 200
101B-101C 200


2667
1333
1333
1333
1333
1333
1333
1333
2000
1000
1000
1333
1333
667
667
667
778
320 646
300 646
320 646
300 562
500
500
542
280 438
140 417
160 511
208 1244
240 1222
200 1144
212 1222
228 1256
224 1211
212 1178
212 1167
208 1089
184 767
184 800
200 858
212 892
216 1233
228 1267
228 650
240 694
260 744
276 783
288 612
300 631
306 569
500
500
500
1000
1333
1333
1333
1333
1333
1333
1333
1333
1333
1333


-2.14
-0.46
-0.01
-0.10
-0.44
-0.36
-0.16
-0.56
-0.69
-0.75
-0.50
-0.04
0.63
1.13
0.44
0.08
-0.80
-1.64
-1.77
-1.23
-0.56
-0.42
-0.78
-1.77
-1.78
-0.42
-0.03
0.23
0.55
0.44
-0.09
-0.30
-0.34
-0.72
-0.97
-0.86
-0.65
-0.66
-0.44
-0.22
-0.64
-0.38
-0.08
-1.03
-1.90
-2.30
-2.37
-1.99
-1.05
-0.60
-0.92
-1.27
-1.52
-1.26
-1.60
-1.62
-1.05
-1.11
-1.56
-1.58
-0.90
-1.05
-1.51


-1.10
-2.56
-1.85
-1.30
-1.60
-0.61
1.12
0.70
-0.03
-0.30
-0.48
-1.07
-0.46
0.52
0.09
-0.11
0.46
0.52
0.15
-0.27
-1.16
-2.11
-2.87
-2.88
-1.78
0.07
0.27
0.14
0.41
0.19
0.30
0.80
0.02
-0.57
-0.29
0.00
0.20
0.38
0.36
0.72
0.88
0.42
0.10
-0.31
-0.72
-0.92
-0.92
-0.78
-0.46
0.20
0.29
-0.50
-0.54
-0.31
-0.94
-1.27
-1.27
-1.28
-1.61
-1.81
-1.30
-1.53
-1.21


0.87
-0.20
-0.96
-0.55
-0.43
0.26
0.98
0.57
0.03
0.03
0.36
-0.52
-0.73
-0.10
-0.08
0.10
0.68
0.69
0.05
-0.29
-0.17
-0.36
-0.87
-1.21
-0.96
0.03
-0.14
-0.23
0.02
-0.44
-0.17
0.88
0.47
-0.25
-0.33
-0.13
0.65
0.73
0.37
0.52
-0.15
-0.20
0.34
-0.20
-0.42
-0.47
-0.64
-0.71
-0.62
-0.33
0.35
0.59
0.05
-0.43
-0.67
-0.46
-0.50
-0.62
-0.62
-0.73
-0.44
-0.76
-0.54


1.24
0.88
0.47
0.91
0.52
0.13
0.22
0.07
0.01
-0.04
0.88
0.63
0.07
0.26
-0.12
-0.37
-0.03
0.06
-0.31
-0.70
-0.66
-0.54
-0.82
-1.04
-0.66
-0.05
-0.48
-0.23
-0.25
-0.69
-0.32
0.26
0.16
0.14
0.07
-0.52
-0.25
0.05
-0.17
-0.16
-0.58
-0.60
-0.52
-0.46
0.11
-0.02
-0.41
-0.19
-0.09
-0.10
0.58
0.40
-0.05
-0.13
-0.46
-0.20
0.19
0.09
-0.18
-0.33
0.25
-0.97
-1.61


0.49
1.40
1.19
1.19
0.69
-0.08
-0.87
-1.30
0.25
0.25
0.35
0.47
-0.19
0.40
0.15
0.17
-0.21
-0.66
-0.16
-0.14
-0.29
-0.24
-0.56
-0.88
-0.54
0.20
-0.55
-1.05
-0.67
-0.43
-0.69
-0.48
-0.15
-0.14
-0.70
-0.65
0.17
0.00
-0.86
-1.13
-0.37
-0.13
-0.58
-0.51
-0.19
-0.38
-0.47
-0.21
-0.51
-1.33
-0.88
-0.51
-0.07
0.15
0.00
0.12
0.17
0.26
-0.22
-0.33
0.16
-0.41
-0.55


-0.60
1.54
1.99
0.88
0.81
0.32
-1.06
-1.11
0.34
0.07
-0.45
-0.14
-0.03
0.54
0.14
0.45
-0.11
-0.61
-0.07
0.09
0.05
-0.07
0.03
-0.38
-0.45
0.09
-0.54
-0.57
-0.30
-0.75
-0.94
-0.76
-0.45
0.02
-0.23
-0.52
-0.02
-0.14
-0.38
-0.51
-0.04
0.51
0.05
-0.67
-0.32
0.62
0.64
0.27
-0.33
-0.17
0.29
0.20
0.46
0.02
0.26
0.42
0.17
0.49
0.59
0.74
0.32
-0.22
0.30


-0.57
1.82
2.25
0.24
0.54
0.25
-1.22
-0.61
0.26
-0.05
-0.38
-0.05
-0.12
0.30
0.12
0.44
-0.23
-0.82
-0.12
0.38
0.55
0.06
-0.50
-0.56
-0.22
-0.41
-0.60
-0.34
-0.23
-0.31
0.04
0.01
-0.85
-0.66
0.08
0.06
0.09
-0.37
-0.25
-0.21
-0.35
-0.29
-0.34
-0.18
0.20
0.68
0.84
0.15
-0.07
0.63
0.42
0.30
0.57
0.38
0.34
0.04
0.00
0.15
-0.21
0.10
0.02
-0.31
-0.43


0.22
1.51
0.94
-0.32
-0.30
0.09
-0.66
-0.37
0.10
-0.37
-0.32
0.22
-0.08
-0.08
0.40
-0.01
-0.68
-0.56
0.07
0.35
0.46
0.08
-0.53
-0.49
-0.08
-0.28
-0.21
-0.37
-0.32
-0.29
0.08
0.45
-0.60
-0.67
-0.21
0.10
0.14
0.19
0.30
0.19
0.70
0.45
-0.22
0.04
0.19
-0.27
0.15
0.44
0.02
-0.05
-0.21
-0.16
-0.14
-0.22
-0.05
-0.18
-0.18
-0.36
-0.25
0.33
-0.24
-0.68
-0.35


-1.14 -0.46
-2.33 6.28
-2.34 6.38
-1.04 1.98
-1.96 1.74
-0.59 0.57
2.16 -3.82
0.78 -3.39
-0.67 0.95
-1.05 -0.09
0.27 -0.80
-1.01 0.50
-0.48 -0.42
1.82 1.16
0.33 0.81
-0.30 1.06
0.31 -1.23
-0.36 -2.65
-1.88 -0.28
-2.49 0.68
-2.55 0.77
-3.42 -0.18
-5.34 -1.55
-6.90 -2.30
-5.17 -1.29
-0.37 -0.40
-0.37 -1.91
-0.09 -2.33
0.72 -1.52
-0.50 -1.78
-0.28 -1.51
1.64 -0.77
0.32 -2.05
-1.39 -1.45
-1.52 -1.05
-1.51 -1.02
-0.05 0.38
0.49 -0.32
0.12 -1.20
0.85 -1.66
-0.49 -0.06
-0.76 0.53
-0.16 -1.10
-1.99 -1.32
-2.93 -0.12
-3.71 0.64
-4.34 1.17
-3.67 0.64
-2.23 -0.89
-0.83 -0.93
0.30 -0.37
-0.78 -0.16
-2.06 0.81
-2.14 0.31
-3.67 0.55
-3.54 0.40
-2.64 0.16
-2.93 0.53
-3.98 -0.08
-4.46 0.84
-2.39 0.26
-4.30 -1.62
-4.87 -1.03


-1.60
3.95
4.03
0.95
-0.22
-0.02
-1.66
-2.61
0.28
-1.14
-0.53
-0.51
-0.90
2.98
1.14
0.76
-0.92
-3.01
-2.16
-1.81
-1.78
-3.60
-6.89
-9.20
-6.46
-0.77
-2.28
-2.43
-0.80
-2.28
-1.79
0.87
-1.73
-2.84
-2.58
-2.53
0.32
0.17
-1.08
-0.81
-0.55
-0.23
-1.26
-3.31
-3.04
-3.07
-3.18
-3.03
-3.12
-1.76
-0.08
-0.94
-1.25
-1.83
-3.12
-3.14
-2.49
-2.40
-4.06
-3.62
-2.13
-5.92
-5.90


63914 -48.45 -31.77


-9.01 -6.66 -13.04


U/i~ ~~~~ U.n-i] ndO -3U II.


Vertical double lines indicate location of reef structure at time of monitoring survey.


0.7// .45 -3.15 -95.8o -1o.uI -1 u.9a







Table lll-3a


P.E.P. Reef Monitoring Volumetric changes on survey line dated July 1992 and December 1994

Profile Dist. to Length of Volume Change (cu. yards/linear foot) Inner Outer
Line Reef (ft) Cells (ft) Cell Cell 2 Cell 3 Cell 4 Cell 5 Cell 6 Cell 7 Cell 8 Subtotal Subtotal Total


-12.94 -3.51 1.60 1.08 -2.98
-0.41 -11.32 -0.27 1.57 2.29
2.65 -6.47 1.45 1.77 2.55
1.42 -4.80 3.85 1.89 0.65
1.05 -4.62 -6.44 -0.65 1.66
0.12 -5.71 -0.54 0.59 1.22
-4.52 -2.53 -0.21 0.04 0.82
-3.12 3.23 0.72 -0.06 -2.74
-3.85 -1.03 -1.12 -1.13 -1.22
-8.57 -2.63 0.33 0.79 1.74
-3.50 -0.47 -3.32 -2.47 -3.39
0.84 -5.57 -8.53 -3.35 -0.78
1.13 -5.40 -6.07 -1.73 -2.03
-5.71 -2.73 0.63 1.28 2.57
-4.78 -2.69 -0.18 0.20 0.62
-4.26 -2.76 0.07 -0.26 -1.59
-1.68 -0.52 -0.15 0.09 1.08
-4.70 -11.02 -9.23 -6.96 -3.53
-9.44 -16.08 -12.03 -8.60 -1.97
0.07 -9.65 -13.00 -11.01 -8.55


92F
93B
93C
93D
93E
94A
94B
94C
94D
94F
94G
94H
94J
95A
95B
95C
95D
95E
95F
96A
96B
96C
96D
96E
96F
96G
97A
97B
97C
97D
97E
97F
98A
98B
98C
98E
98G
98H
981
98J
99A
99B
99C
99D
99E
99F
100A
100B
100C
100D
100E
100F
101A
101B
101C


60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
320 80
320 70
60
60
140 35
208 50
240 60
200 57
212 54
224 58
212 53
212 53
208 52
184 47
184 47
200 52
212 52
216 55
228 54
228 57
240 60
260 65
276 68
288 71
306 77
60
60
60
60
60
60
60
60
60
60
60
60
60


-4.73
-4.08
-8.73
-6.76
-8.82
-7.48
-7.60
-5.06
-4.59
-4.22
-3.73
-3.75
-3.38
-2.88
-4.44
-1.41
-0.29
-1.10
-0.37
0.01
2.91
4.53
3.27
7.32
0.09
1.07
5.33
6.66
7.67
4.71
9.29
5.73
5.72
3.69


-11.81
-4.15
-2.82
-7.81
-6.00
-8.85
-7.60
-9.04
-7.85
-5.80
-5.21
-3.68
-3.84
-3.98
-4.40
-8.25
-3.21
-2.05
-4.39
-5.23
-6.38
-5.74
0.14
-0.74
1.89
-1.98
-0.86
2.75
2.38
4.35
3.75
4.01
1.41
-0.09
1.54


-9.92 -8.04
-3.40 -1.95
-3.70 -3.38
-3.93 -0.68
-4.99 -3.21
-4.96 -1.12
-5.40 -1.01
-7.00 -0.99
-5.24 -4.02
-4.49 -2.45
-4.11 -2.15
-3.55 -1.87
-2.18 0.07
-2.55 -3.33
-3.62 -3.93
-6.76 3.20
-2.08 0.01
-3.09 -1.51
-2.59 2.32
-4.16 3.09
-5.74 0.86
-4.34 -4.73
-2.25 -11.07
-4.96 -8.13
-2.66 -4.45
-2.06 -4.71
-3.32 -3.65
0.17 -3.18
-0.01 -1.69
-0.61 -5.73
-0.80 -1.42
-0.24 -0.77
0.42 -0.82
-4.84 -6.52
-2.10 -1.45


-3.46
2.34
4.23
4.36
0.03
2.10
2.40
-2.66
-1.51
-1.72
-3.65
-0.75
-0.89
4.20
0.78
-1.62
0.81
-5.00
1.23
-3.40
-4.16
-1.08
-2.60
-0.25
-2.52
-2.05
0.29
-1.88
-1.63
-3.29
-0.59
0.05
-0.73
-1.65
-2.85
4.30
-1.82
-3.72
-0.77
6.10
4.40
-3.95
-6.86
-7.56
-4.08
-5.84
-0.90
-2.78
-0.16
-2.92
-2.19
-1.44
0.03
-5.79
0.21


-0.33
1.99
4.48
5.62
0.44
1.42
3.03
-2.17
-1.14
-2.99
-2.32
-0.28
-2.13
3.49
2.87
-2.87
-2.96
-5.46
1.74
0.83
-3.38
-1.17
-2.76
0.14
-2.92
-1.86
1.63
-0.87
0.11
-2.39
-1.75
0.48
-0.26
0.20
-1.03
-1.10
-2.19
-1.38
5.47
2.15
0.98
-3.34
-2.13
-5.51
-5.19
-5.39
3.27
-2.19
1.87
-1.42
-1.41
-0.29
-0.53
-4.42
-2.92


0.13
3.29
4.10
1.87
0.83
1.05
3.79
-1.60
-0.06
-3.80
-0.43
0.45
-0.35
2.13
3.60
-2.67
-7.33
-5.69
4.42
0.82
-1.81
-0.20
-2.58
-1.77
-0.90
-3.82
-0.02
0.32
-0.89
-2.12
-0.28
0.28
-0.01
-0.21
1.69
-1.31
-1.14
-0.90
4.44
0.81
-0.12
2.48
0.47
-4.27
-5.25
-2.93
3.95
-0.46
2.18
-2.55
1.48
-0.24
-0.09
-0.79
-1.49


-13.78 -6.63
-10.43 9.91
-0.60 15.36
2.35 12.50
-10.66 2.95
-5.53 5.78
-7.21 10.03
0.78 -9.17
-7.13 -3.92
-10.09 -6.78
-9.76 -9.79
-16.61 -1.37
-12.07 -5.39
-6.54 12.40
-7.46 7.86
-7.20 -8.75
-2.26 -8.40
-31.90 -19.69
-46.15 5.42
-33.58 -10.31
-32.80 -17.39
-17.68 -4.42
-15.08 -11.33
-28.56 -2.57
-31.34 -9.55
-32.86 -8.84
-27.12 0.88
-28.16 -3.41
-22.25 -6.44
-16.51 -10.25
-14.32 -4.77
-12.01 -1.07
-12.15 -0.93
-9.70 -4.99
-12.12 -6.12
-24.13 5.09
-4.92 -5.14
-3.20 -7.51
-7.45 11.46
-9.62 12.16
-11.26 6.12
-2.07 -9.54
4.75 -19.58
-1.74 -25.48
7.76 -18.98
-1.79 -18.86
-1.31 2.68
11.22 -8.62
14.32 2.19
14.30 -12.63
10.40 -3.53
17.64 -2.74
14.05 -1.41
4.80 -17.51
4.32 -5.65


Total -80.41 -122.02 -161.98 -147.98 -101.99 -62.86 -38.24 -13.50 -512.42 -216.67 -729.07

Vertical double lines indicate location of reef structure at time of monitoring survey.


-0.76 -10.32


-5.39
-4.48
-8.09
-13.59
-10.23
-6.64
-4.52
-4.09
-1.63
-0.79
-1.04
-2.38
0.21
-1.22
-4.69
1.79
2.23
0.63
0.14
0.85
5.09
2.32
0.70
1.22
2.16
1.80
2.98
5.29
2.89
2.74
4.58
6.50
4.02
1.19


-20.42
-0.52
14.76
14.85
-7.71
0.25
2.82
-8.40
-11.05
-16.86
-19.55
-17.98
-17.47
5.86
0.40
-15.95
-10.66
-51.59
-40.73
-43.89
-50.20
-22.09
-26.41
-31.13
-40.89
-41.70
-26.24
-31.56
-28.69
-26.76
-19.09
-13.08
-13.07
-14.69
-18.24
-19.04
-10.06
-10.72
4.01
2.54
-5.13
-11.61
-14.83
-27.21
-11.22
-20.65
1.37
2.61
16.52
1.68
6.86
14.89
12.64
-12.71
-1.33






Table lll-3b


P.E.P. Reef Monitoring Elevation changes between survey lines dated July 1992 and December 1994


Profile Dist. b/ Dist. to Area of cel Volume Change (cubic yards) Inner Outer Inner Cum Outer Cum
Lines lines(ft) Reef (ft) (sq.yards) I Cel Cell 2 Celll 3 Cell 4 Cell 5| Cell 6 Cell 7 Cell 8 Chg(cyds) Chg(cyds) Chg(cyds) Chgs(yads)


92F-93B 400
93B-93C 200
93C-93D 200
93D-93E 200
93E-94A 200
94A-94B 200
94B-94C 200
94C-94D 200
94D-94F 300
94F-94G 150
94G-94H 150
94H-94J 200
94J-95A 200
95A-95B 100
95B-95C 100
95C-95D 100
95D-95E 100
95E-95F 75
95F-96A 75
96A-96B 75
96B-96C 75
96C-96D 100
96D-96E 200
96E-96F 200
96F-96G 200
96G-97A 228
97A-97B 200
97B-97C 200
97C-97D 200
97D-97E 200
97E-97F 150
97F-98A 150
98A-98B 150
98B-98C 150
98C-98E 200
98E-98G 200
98G-98H 100
98H-981 100
981-98J 100
98J-98A 100
99A-99B 75
99B-99C 75
99C-99D 75
99D-99E 150
99E-99F 200
99F-100A 200
100A-100B 200
100B-100C 200
100C-100D 200
100D-100E 200
100E-100F 200
100F-101A 200
101A-101B 200
101B-101C 200


2667
1333
1333
1333
1333
1333
1333
1333
2000
1000
1000
1333
1333
667
667
667
778
320 646
320 646
500
542
140 417
208 1244
240 1222
200 1144
212 1222
224 1211
212 1178
212 1167
208 1089
184 767
184 800
200 858
212 892
216 1233
228 1267
228 650
240 694
260 744
276 783
288 612
306 569
500
1000
1333
1333
1333
1333
1333
1333
1333
1333
1333
1333


-2670 -2967 265 529 -137 -224 331
224 -1779 118 334 484 657 647
406 -1127 530 366 320 859 1010
247 -942 -259 124 231 439 606
117 -1032 -698 -6 288 213 186
-440 -823 -74 64 204 449 445
-764 70 52 -1 -192 -26 86
-697 220 -40 -118 -396 -417 -330
-1863 -549 -119 -51 78 -485 -619
-905 -233 -224 -126 -124 -403 -398
-199 -453 -889 -437 -313 -330 -195
198 -1097 -1461 -508 -281 -164 -241
-458 -813 -544 -46 55 331 136
-525 -271 22 74 160 249 318
-452 -272 -5 -3 -49 -42 0
-297 -164 -4 -8 -25 -40 -292
-319 -577 -469 -343 -122 -210 -421
-1061 -2032 -1594 -1167 -412 -283 -279
-703 -1930 -1877 -1471 -789 -163 193
-51 -1498 -1860 -1569 -1244 -568 -192
-461 -1129 -1197 -999 -750 -394 -342
-987 -881 -697 -710 -534 -369 -393
-1257 -1281 -1062 -763 -406 -285 -262
-2168 -1549 -1381 -892 -389 -277 -278
-2382 -1557 -1485 -995 -432 -457 -477
-3375 -3259 -3290 -2072 -424 -353 -46
-1117 -1508 -1664 -1240 -199 -159 76
-862 -1266 -1689 -1224 -501 -351 -76
-572 -965 -1365 -973 -648 -492 -228
-242 -881 -1101 -860 -461 -388 -414
-138 -596 -667 -575 -302 -41 -95
-257 -561 -564 -430 -135 -51 17
-163 -535 -587 -355 -245 -178 -4
-76 -470 -628 -463 -545 -337 -62
-591 -732 -1265 -1038 -73 145 -213
-290 -585 -1146 -884 321 248 -329
201 -85 -263 -258 -75 -277 -178
143 -70 -322 -284 40 -224 204
39 -74 -481 -338 271 266 381
50 -18 -580 -495 198 525 157
446 219 -909 -756 -290 34 -177
556 559 -420 -494 -1185 -810 -410
227 585 -45 -540 -1440 -1081 -573
144 794 86 -572 -944 -873 -803
337 741 -9 -472 -916 -992 -1058
395 117 -284 -538 -836 -674 -211
477 640 189 -315 -683 -369 108
827 1199 513 16 -487 -295 -33
818 1434 673 -62 -742 -308 44
563 1238 810 -142 -715 -511 -283
732 1400 776 -105 -219 -363 -170
1107 1502 543 17 -160 -141 -82
1052 1144 132 -442 -734 -576 -494
521 941 145 -694 -797 -558 -733


-4843
-1103
175
-831
-1619
-1274
-643
-635
-2582
-1489
-1978
-2868
-1861
-700
-733
-473
-1708
-5854
-5980
-4979
-3786
-3276
-4364
-5991
-6420
-11996
-5528
-5041
-3876
-3083
-1975
-1812
-1639
-1637
-3625
-2905
-406
-533
-853
-1044
-999
201
226
452
598
-310
991
2555
2863
2470
2804
3169
1886
913


-4843 655
-5946 3182
-5771 5968
-6602 7514
-8221 8387
-9495 9969
-10139 10055
-10774 8746
-13357 7141
-14845 5899
-16823 5063
-19691 4387
-21552 5088
-22252 6100
-22985 6056
-23458 5198
-25166 3794
-31020 2724
-37000 2357
-41979 280
-45765 -1356
-49041 -2930
-53405 -4320
-59395 -5531
-65815 -7370
-77811 -8962
-83339 -9214
-88380 -10198
-92256 -11867
-95339 -13369
-97314 -13807
-99126 -13957
-100764 -14400
-102401 -15233
-106027 -15336
-108931 -15341
-109338 -15973
-109870 -15776
-110724 -14595
-111767 -13681
-112767 -13937
-112566 -16122
-112340 -19501
-111888 -22835
-111290 -26619
-111600 -28237
-110609 -28831
-108054 -29473
-105192 -30516
-102722 -32132
-99918 -32760
-96749 -33175
-94864 -35067
-93951 -37383


Total 58370 -16515 -23758 -28364 -25310 -17701 -11124 -6446 -2109 -93949 -37386

Vertical double lines indicate location of reef structure at time of monitoring survey.


111-8








Table lll-3c


P.E.P. Reef Monitoring Elevation changes between survey lines dated July 1992 and December 1994

Profile Dist. b/ Dist. to Area of cel Elevation Chan e (feet) Inner Outer Total
Line lines(ft) Reef (ft) (sq.yards) Celll Cell 2 Cell3 C Ce 4 Cell 5 Cell 6 Cell 7 Cell 8 Chg(ft) Chg(ft) Chg(ft)


92F-93B 400
93B-93C 200
93C-93D 200
93D-93E 200
93E-94A 200
94A-94B 200
94B-94C 200
94C-94D 200
94D-94F 300
94F-94G 150
94G-94H 150
94H-94J 200
94J-95A 200
95A-95B 100
95B-95C 100
95C-95D 100
95D-95E 100
95E-95F 75
95F-96A 75
96A-96B 75
96B-96C 75
96C-96D 100
96D-96E 200
96E-96F 200
96F-96G 200
96G-97A 228
97A-97B 200
97B-97C 200
97C-97D 200
97D-97E 200
97E-97F 150
97F-98A 150
98A-98B 150
98B-98C 150
98C-98E 200
98E-98G 200
98G-98H 100
98H-981 100
981-98J 100
98J-98A 100
99A-99B 75
99B-99C 75
99C-99D 75
99D-99E 150
99E-99F 200
99F-100A 200
100A-100B 200
100B-100C 200
100C-100D 200
100D-100E 200
100E-100F 200
100F-101A 200
101A-101B 200
101B-101C 200


2667
1333
1333
1333
1333
1333
1333
1333
2000
1000
1000
1333
1333
667
667
667
778
320 1333
320 1167
1000
792
140 967
208 1244
240 1222
200 1144
212 2422
224 1211
212 1178
212 1167
208 1089
184 767
184 800
200 858
212 892
216 1233
228 1267
228 650
240 694
260 744
276 783
288 1238
306 1138
1000
1000
1333
1333
1333
1333
1333
1333
1333
1333
1333
1333


-3.00
0.50
0.91
0.56
0.26
-0.99
-1.72
-1.57
-2.79
-2.72
-0.60
0.44
-1.03
-2.36
-2.04
-1.34
-1.23
-2.39
-1.81
-0.15
-1.75
-3.06
-3.03
-5.32
-6.24
-4.18
-2.77
-2.19
-1.47
-0.67
-0.54
-0.96
-0.57
-0.26
-1.44
-0.69
0.93
0.62
0.16
0.19
1.08
1.47
0.68
0.43
0.76
0.89
1.07
1.86
1.84
1.27
1.65
2.49
2.37
1.17


-3.34
-4.00
-2.54
-2.12
-2.32
-1.85
0.16
0.50
-0.82
-0.70
-1.36
-2.47
-1.83
-1.22
-1.23
-0.74
-2.23
-4.57
-4.96
-4.49
-4.28
-2.73
-3.09
-3.80
-4.08
-4.04
-3.73
-3.23
-2.48
-2.43
-2.33
-2.10
-1.87
-1.58
-1.78
-1.39
-0.39
-0.30
-0.30
-0.07
0.53
1.47
1.76
2.38
1.67
0.26
1.44
2.70
3.23
2.79
3.15
3.38
2.57
2.12


0.30
0.26
1.19
-0.58
-1.57
-0.17
0.12
-0.09
-0.18
-0.67
-2.67
-3.29
-1.22
0.10
-0.02
-0.02
-1.81
-3.59
-4.83
-5.58
-4.54
-2.16
-2.56
-3.39
-3.89
-4.08
-4.12
-4.30
-3.51
-3.03
-2.61
-2.12
-2.05
-2.11
-3.08
-2.71
-1.21
-1.39
-1.94
-2.22
-2.20
-1.11
-0.14
0.26
-0.02
-0.64
0.42
1.15
1.51
1.82
1.75
1.22
0.30
0.33


0.60 -0.15
0.75 1.09
0.82 0.72
0.28 0.52
-0.01 0.65
0.14 0.46
0.00 -0.43
-0.27 -0.89
-0.08 0.12
-0.38 -0.37
-1.31 -0.94
-1.14 -0.63
-0.10 0.12
0.33 0.72
-0.01 -0.22
-0.04 -0.11
-1.32 -0.47
-2.63 -0.93
-3.78 -2.03
-4.71 -3.73
-3.78 -2.84
-2.20 -1.66
-1.84 -0.98
-2.19 -0.95
-2.61 -1.13
-2.57 -0.53
-3.07 -0.49
-3.12 -1.28
-2.50 -1.67
-2.37 -1.27
-2.25 -1.18
-1.61 -0.51
-1.24 -0.86
-1.56 -1.83
-2.52 -0.18
-2.09 0.76
-1.19 -0.35
-1.23 0.17
-1.36 1.09
-1.90 0.76
-1.83 -0.70
-1.30 -3.12
-1.62 -4.32
-1.72 -2.83
-1.06 -2.06
-1.21 -1.88
-0.71 -1.54
0.04 -1.10
-0.14 -1.67
-0.32 -1.61
-0.24 -0.49
0.04 -0.36
-1.00 -1.65
-1.56 -1.79


-0.25
1.48
1.93
0.99
0.48
1.01
-0.06
-0.94
-0.73
-1.21
-0.99
-0.37
0.75
1.12
-0.19
-0.18
-0.81
-0.64
-0.42
-1.70
-1.49
-1.14
-0.69
-0.68
-1.20
-0.44
-0.39
-0.89
-1.26
-1.07
-0.16
-0.19
-0.62
-1.13
0.35
0.59
-1.28
-0.97
1.07
2.01
0.08
-2.14
-3.24
-2.62
-2.23
-1.52
-0.83
-0.66
-0.69
-1.15
-0.82
-0.32
-1.30
-1.26


0.37
1.46
2.27
1.36
0.42
1.00
0.19
-0.74
-0.93
-1.19
-0.59
-0.54
0.31
1.43
0.00
-1.31
-1.63
-0.63
0.50
-0.58
-1.29
-1.22
-0.63
-0.68
-1.25
-0.06
0.19
-0.19
-0.59
-1.14
-0.37
0.06
-0.02
-0.21
-0.52
-0.78
-0.82
0.88
1.54
0.60
-0.43
-1.08
-1.72
-2.41
-2.38
-0.48
0.24
-0.07
0.10
-0.64
-0.38
-0.18
-1.11
-1.65


0.77
1.66
1.34
0.61
0.42
1.09
0.49
-0.37
-0.87
-0.95
0.01
0.02
0.40
1.29
0.21
-2.25
-2.51

-0.22
1.01
-0.22
-0.57
-0.86
-1.05
-0.66
-1.24
-0.95
0.07
-0.14
-0.77
-0.66
0.00
0.07
-0.06
0.37
0.09
-0.58
-0.47
0.76
1.06
0.13
0.43
0.58
-0.86
-2.14
-1.84
0.23
0.79
0.39
-0.08
-0.24
0.28
-0.07
-0.20


-5.45 0.74
-2.48 5.69
0.39 6.27
-1.87 3.48
-3.64 1.97
-2.87 3.56
-1.45 0.19
-1.43 -2.95
-3.87 -2.41
-4.47 -3.73
-5.93 -2.51
-6.45 -1.52
-4.19 1.58
-3.15 4.56
-3.30 -0.20
-2.13 -3.86
-6.59 -5.42
-13.17 -2.41
-15.38 -0.94
-14.94 -6.23
-14.35 -6.20
-10.17 -4.89
-10.52 -3.35
-14.70 -2.97
-16.83 -4.82
-14.86 -1.97
-13.69 -0.62
-12.84 -2.51
-9.97 -4.29
-8.49 -4.14
-7.73 -1.71
-6.79 -0.56
-5.73 -1.55
-5.51 -2.80
-8.82 -0.25
-6.88 -0.01
-1.87 -2.92
-2.30 0.85
-3.44 4.76
-4.00 3.50
-2.42 -0.62
0.53 -5.76
0.68 -10.14
1.36 -10.00
1.34 -8.51
-0.70 -3.64
2.23 -1.34
5.75 -1.45
6.44 -2.35
5.56 -3.64
6.31 -1.41
7.13 -0.93
4.24 -4.26


-0.51 2.05 -5.211 -3.16


63773 -37.28 -58.68 -76.69 -68.69 -46.55 -29.01 -17.52


-6.77 -241.36 -99.85 -341.21


Vertical double lines indicate location of reef structure at time of monitoring survey.


-4.71
3.20
6.66
1.61
-1.68
0.69
-1.25
-4.38
-6.28
-8.19
-8.44
-7.97
-2.61
1.41
-3.50
-5.99
-12.01
-15.58
-16.32
-21.17
-20.54
-15.05
-13.87
-17.68
-21.65
-16.83
-14.32
-15.35
-14.26
-12.63
-9.44
-7.35
-7.28
-8.31
-9.07
-6.89
-4.79
-1.45
1.32
-0.50
-3.04
-5.23
-9.46
-8.65
-7.17
-4.34
0.89
4.30
4.09
1.92
4.90
6.20
-0.01








Table 1ll-4a


P.E.P. Reef Monitoring Volumetric changes on survey line dated August 1993 and December 1994

Profile Dist. to Length of Volume Change (cu. yards/linear foot) Inner Outer
Line Reef (ft) Cells (ft) Celll Cell 2 Cell 3 Cell 4 Cell 5 Cell 6 Cell 7 Cell 8 Subtotal Subtotal Total


92F
93B
93C
93D
93E
94A
94B
94C
94D
94F
94G
94H
94J
95A
95B
95C
95D
95E
95E1
95F
95F1
96A
96A1
96B
96B1
96C
96C1
96D
96E
96F
96G
97A
97B
97C
97D
97E
97F
98A
98B
98C
98E
98G
98H
981
98J
99A
99B
99C
99D
99E
99F
100A
100B
100C
100D
100E
100F
101A
101B
101C


60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
320 80
300 70
320 70
300 75
60
60
60
280 70
140 35
160 42
208 50
240 60
200 57
212 54
224 58
212 53
212 53
208 52
184 47
184 47
200 52
212 52
216 55
228 54
228 57
240 60
260 65
276 68
288 71
306 77
60
60
60
60
60
60
60
60
60
60
60
60
60


-7.08 1.84
-0.33 1.37
1.38 5.27
0.34 7.57
0.79 -1.83
-0.14 -0.04
-0.8 1.45
-0.41 2.91
-2.73 -1.49
-6.93 -4.14
-2.36 -2.44
0.53 -3.18
1.58 -0.94
0.58 -0.65
-1.39 -2.26
-3.01 -1.77
-0.7 0.02
-3.68 -2.82
-2.92 -4.4
-3.82 -3.27
-1.44 -3.7
2.27 -2.73
0.55 -3.25
0.69 -2.22
0.77 -1.94
-2.39 -2.84
-1.67 -2.15
-2.22 -2.97
-4.53 -2.86
-7.89 -4.19
-7.6 -5.74
-2.34 -2.42
-1.32 -2.95
-1.87 -2.77
-1.93 -3
-2.59 -2.76
-2.86 -1.88
-2.92 -2
-2 -2.43
-3.7 -2.17
-9.88 -4.45
-7.25 -3.88
-8.9 -3.94
-10.23 -5.05
-10.82 -4.89
-8.92 -4.73
-4.25 -0.48
-1.67 -0.71
-2.38 -4.33
-1.53 -2.29
-0.69 -5.26
-2.79 -4.04
-1.48 -2.79
-0.87 -2.76
-0.67 -0.5
-1.68 -2.35
-0.19 -1.55
-0.63 -3.24
-3.09 -1.09
-2.73 -1.03


2.75 2.25 -0.94 -1.4
8.12 5.02 4.89 3.14
9.63 4.88 4.65 4.22
8.49 3 1.25 2.19
-2.6 0.62 1.45 0.65
0.38 0.43 0.86 0.99
0.06 -0.81 0.83 1.62
2.65 0.04 -3.15 -2.86
-0.57 -0.85 -2.25 -0.48
-2.87 -0.29 0.68 -0.54
-3.26 -2.25 -2.76 -3.51
-2.76 -0.52 -2.71 -3.06
-0.94 -2 -3.58 -1.02
-0.13 -0.42 0.35 1.62
0.07 1.14 1.05 1.02
0.09 -0.08 -0.98 -1.12
0.49 1.59 1.66 0.77
-4.23 -6.08 -0.37 -3.13
-8.28 -4.18 -0.48 -1.28
-7.58 -4.87 1.01 -0.31
-8.81 -6.24 0.86 0.08
-1.63 -5.73 -4.35 -1.28
-2.68 -5.92 -4.1 -1.52
-2.02 -3.71 -2.87 -3.06
-3.08 -4.67 -4.58 -1.13
-2.39 -1.6 0.6 1.41
-2.2 -1.67 -0.69 0.7
-1.18 -0.49 -1.98 -2.29
-3.87 -2.18 -0.95 -1.22
-4.1 -3.6 -0.89 0.05
-7.09 -2.7 -0.45 -1.55
-3.05 -2.36 -0.94 -0.18
-5.98 -2.52 1.28 -2
-5.11 -2.61 -1.94 -1.26
-4.14 -3.08 -2.24 -4.01
-4.74 -3.77 0.4 1.06
-2.68 -2.14 -0.58 0.26
-3 -1.73 0.05 -0.13
-3.58 -2.73 -1.75 0.22
-4.46 -2.8 -1.61 -1.07
-9.02 -8.36 -1.47 1.48
-5.45 -6.55 -5.78 -2.32
-5.34 -7.26 -5.41 -1.54
-7.07 -6.13 -4.34 -2.67
-6.22 -6.37 -2.83 1.97
-5.47 -6.06 -1.68 1.14
-2.92 -1.44 0.86 -0.22
0.96 -0.84 -7.91 -5.26
-0.55 -3.24 -5.12 -3.09
0.68 -1.28 -2.49 -1.27
-2.34 -2.75 -4.23 -2.18
0.77 -2.38 -4.16 0.23
1.63 -0.08 -1.91 -0.1
-0.13 -0.09 -2.63 0.72
3.03 1.08 -2.64 -0.75
2.82 -0.39 -2.55 -0.44
2.84 -0.09 0.52 0.7
1.01 0.52 1.04 3.31
1.03 -4.76 -4.52 -2.38
1.27 -0.37 -0.72 0.01


-156.74 -125.13 -104.75 -122.47 -83.24 -32.07


-6.03 4.72 -509.08 -116.69 -625.76


Vertical double lines indicate location of reef structure at time of monitoring survey.


111-10


2.24 3.23
1.15 0.54
4.04 3.69
3.92 0.34
0.54 1.21
0.66 -0.35
1.99 2.72
-2.64 -1.69
2.38 3.86
-1.01 -1.5
-1.41 0.36
-1.47 -0.61
-0.66 -0.51
0.7 -0.99
2.84 3.17
-2.04 0.81
-2.09 -5.93
-4.41 -2.64
-0.73 -1
-1.83 1.28
-0.19 0.49
0 1.23
-0.1 -0.49
-2.82 -1.77
0.41 1.92
1.37 1.83
0.33 0.18
-2.39 -1.71
-2.64 -2.08
0.48 0.26
-0.7 -2.76
0.6 0.45
-3.93 -4.23
-0.19 -0.08
-1.12 -0.35
-1.03 0.56
0.45 -0.08
-0.48 -0.33
0.98 0.17
0.22 2.9
-0.69 1.18
-2.43 -1.67
-0.8 -0.53
4.21 1.91
3.3 0.67
2.19 -1.25
-0.91 -0.65
1.21 2.63
-1.55 -1.66
-3.96 -1.96
-1.37 0.58
3.54 2.89
-0.23 -0.54
2.6 1.34
-0.58 -1.53
-0.21 0.89
1.26 1.91
1.44 -1
-0.66 0.08
-3.81 -0.67


-0.24 3.14
14.19 9.73
21.17 16.59
19.41 7.71
-3.02 3.84
0.64 2.16
-0.1 7.15
5.19 -10.35
-5.65 3.5
-14.23 -2.37
-10.3 -7.32
-5.93 -7.85
-2.31 -5.76
-0.62 1.68
-2.43 8.08
-4.77 -3.35
1.39 -5.59
-16.8 -10.56
-19.78 -3.49
-19.53 0.15
-20.19 1.23
-7.82 -4.4
-11.3 -6.21
-7.26 -10.52
-8.92 -3.38
-9.22 5.22
-7.69 0.53
-6.87 -8.37
-13.44 -6.88
-19.78 -0.1
-23.13 -5.46
-10.17 -0.07
-12.78 -8.87
-12.35 -3.47
-12.16 -7.72
-13.86 0.98
-9.55 0.04
-9.65 -0.89
-10.73 -0.38
-13.13 0.44
-31.72 0.49
-23.13 -12.19
-25.43 -8.28
-28.49 -0.9
-28.3 3.11
-25.18 0.4
-9.09 -0.92
-2.27 -9.33
-10.51 -11.42
-4.43 -9.68
-11.04 -7.2
-8.44 2.49
-2.72 -2.79
-3.85 2.02
2.93 -5.5
-1.59 -2.31
1.01 4.4
-2.34 4.78
-7.9 -7.48
-2.87 -5.19


2.9
23.91
37.76
27.11
0.83
2.8
7.05
-5.15
-2.15
-16.6
-17.62
-13.78
-8.06
1.06
5.65
-8.11
-4.19
-27.36
-23.27
-19.38
-18.97
-12.23
-17.51
-17.78
-12.3
-4
-7.17
-15.24
-20.32
-19.87
-28.59
-10.25
-21.65
-15.82
-19.88
-12.88
-9.51
-10.55
-11.12
-12.69
-31.23
-35.32
-33.71
-29.38
-25.18
-24.78
-10.01
-11.6
-21.92
-14.11
-18.25
-5.95
-5.5
-1.82
-2.57
-3.9
5.4
2.44
-15.38
-8.06







Table lll-4b


P.E.P. Reef Monitoring Volume changes between survey lines dated August 1993 and December 1994

Profile Dist. b/ Dist. to Area of cel Volume Change (cubic yards) Inner Outer Inner Curr Outer Cu
Lines lines(ft) Reef (ft) (sq.yards) Celll Cell 2 Cell 3 Cell 4 Cell 5 Cell 6 Cell7 Cell 8 Chg(cds Chg(cyds Chg(cyds) Chgs(yads


92F-93B 400
93B-93C 200
93C-93D 200
93D-93E 200
93E-94A 200
94A-94B 200
94B-94C 200
94C-94D 200
94D-94F 300
94F-94G 150
94G-94H 150
94H-94J 200
94J-95A 200
95A-95B 100
95B-95C 100
95C-95D 100
95D-95E 100
95E-95E1 75
95E1-95F 75
95F-95F1 75
95F1-96A 75
96A-96A1 75
96A1-96B 75
96B-96B1 75
96B1-96C 75
96C-96C1 100
96C1-96D 100
96D-96E 200
96E-96F 200
96F-96G 200
96G-97A 228
97A-97B 200
97B-97C 200
97C-97D 200
97D-97E 200
97E-97F 150
97F-98A 150
98A-98B 150
98B-98C 150
98C-98E 200
98E-98G 200
98G-98H 100
98H-981 100
981-98J 100
98J-98A 100
99A-99AB 75
99B-99C 75
99C-99D 75
99D-99E 150
99E-99F 200
99F-100A 200
100A-100E 200
100B-100C 200
100C-100E 200
100D-100E 200
100E-100F 200
100F-101 200
101A-101E 200
101B-101C 200


2667
1333
1333
1333
1333
1333
1333
1333
2000
1000
1000
1333
1333
667
667
667
778
320 646
300 646
320 646
300 562
500
500
542
280 438
140 417
160 511
208 1244
240 1222
200 1144
212 1222
224 1211
212 1178
212 1167
208 1089
184 767
184 800
200 858
212 892
216 1233
228 1267
228 650
240 694
260 744
276 783
288 612
306 569
500
1000
1333
1333
1333
1333
1333
1333
1333
1333
1333
1333


-1482 642 2175
105 665 1776
172 1284 1813
113 574 589
64 -186 -222
-95 141 44
-121 436 271
-314 141 208
-1449 -845 -517
-697 -493 -460
-137 -421 -451
211 -412 -370
216 -159 -107
-40 -145 -3
-220 -201 8
-186 -88 29
-219 -140 -187
-247 -271 -469
-252 -288 -595
-197 -261 -615
31 -241 -391
105 -224 -162
46 -205 -176
55 -156 -191
-61 -179 -205
-203 -249 -229
-194 -256 -169
-675 -584 -505
-1242 -705 -797
-1549 -993 -1118
-1987 -1633 -2027
-366 -537 -903
-318 -572 -1109
-380 -577 -925
-452 -576 -888
-409 -348 -556
-434 -291 -425
-369 -332 -493
-427 -345 -603


1454 789
990 953
788 590
362 270
105 232
-38 169
-76 -233
-81 -541
-171 -237
-190 -156
-208 -410
-252 -629
-242 -323
36 70
53 3
76 34
-224 64
-385 -32
-339 20
-417 70
-449 -131
-437 -317
-361 -261
-314 -279
-235 -149
-164 -4
-108 -133
-267 -293
-578 -184
-630 -135
1013 -279
-489 34
-513 -66
-569 -418
-685 -184
-443 -14
-290 -39
-335 -128
-415 -252


-1358 -662 -1349 -1116 -308
-1713 -833 -1447 -1492 -725
-807 -391 -539 -691 -559
-957 -450 -620 -669 -487
-1053 -497 -664 -625 -358
-987 -481 -584 -622 -225
-988 -391 -629 -563 -61
-445 -89 -147 -171 -529
-304 -378 30 -306 -977
-293 -497 9 -339 -571
-222 -756 -166 -404 -672
-348 -930 -157 -513 -840
-427 -682 240 -246 -608
-235 -555 150 -16 -454
-155 -326 290 99 -527
-235 -285 585 69 -519
-187 -390 566 -48 -203
-82 -479 384 43 156
-372 -433 204 -423 -349
-582 -212 230 -512 -525


61027 -25354 -18747 -12569 -15599 -11870 -4214


77 1113 -72277 -14885


Vertical double lines indicate location of reef structure at time of monitoring survey.


2789
3535
4057
1639
-238
53
509
-46
-2982
-1840
-1217
-824
-293
-153
-360
-169
-771
-1372
-1474
-1490
-1051
-717
-696
-607
-680
-845
-728
-2031
-3322
-4291
-6661
-2295
-2513
-2451
-2602
-1756
-1440
-1529
-1790
-4485
-5485
-2428
-2696
-2839
-2674
-2571
-852
-958
-1120
-1547
-1948
-1115
-656
-91
134
-59
-134
-1024
-1077


2573
2632
2430
1155
601
932
-319
-684
170
-727
-1138
-1361
-408
488
237
-447
-807
-527
-125
52
-119
-398
-627
-521
69
287
-392
-1525
-698
-556
-1107
-894
-1234
-1119
-674
77
-64
-96
4
93
-1170
-1024
-459
111
176
-39
-769
-1556
-1583
-1689
-471
-30
-76
-348
-780
209
918
-270
-1268


2789
6324
10381
12020
11782
11835
12344
12298
9315
7476
6258
5435
5142
4990
4630
4461
3691
2319
844
-646
-1696
-2413
-3110
-3717
-4397
-5242
-5970
-8001
-11323
-15614
-22274
-24569
-27083
-29534
-32136
-33892
-35333
-36862
-38651
-43136
-48621
-51049
-53745
-56584
-59258
-61828
-62680
-63638
-64758
-66305
-68253
-69369
-70025
-70116
-69982
-70041
-70175
-71199
-72276


2573
5205
7635
8790
9391
10322
10003
9318
9488
8762
7624
6262
5855
6343
6579
6133
5325
4799
4674
4725
4606
4208
3581
3060
3128
3416
3023
1498
801
244
-863
-1757
-2991
-4110
-4784
-4707
-4771
-4867
-4862
-4769
-5939
-6963
-7422
-7311
-7135
-7174
-7943
-9500
-11082
-12771
-13242
-13272
-13348
-13696
-14476
-14267
-13350
-13620
-14888


Total







Table lll-4c


P.E.P. Reef Monitoring Elevation changes between survey lines dated August 1993 and December 1994

Profile Dist. b/ Dist. to Area of cell Elevation Change (feet) Inner Outer Total
Line lines(ft) Reef (ft) (sq.ards) Cell ll Cell 2 Cell 3 Cell 4 Cell5 Cell 6 Cell7 Cell 8 Chg(ft) Chg(ft) Chg(ft


92F-93B 400
93B-93C 200
93C-93D 200
93D-93E 200
93E-94A 200
94A-94B 200
94B-94C 200
94C-94D 200
94D-94F 300
94F-94G 150
94G-94H 150
94H-94J 200
94J-95A 200
95A-95B 100
95B-95C 100
95C-95D 100
95D-95E 100
95E-95E1 75
95E1-95F 75
95F-95F1 75
95F1-96A 75
96A-96A1 75
96A1-96B 75
96B-96B1 75
96B1-96C 75
96C-96C1 100
96C1-96D 100
96D-96E 200
96E-96F 200
96F-96G 200
96G-97A 228
97A-97B 200
97B-97C 200
97C-97D 200
97D-97E 200
97E-97F 150
97F-98A 150
98A-98B 150
98B-98C 150
98C-98E 200
98E-98G 200
98G-98H 100
98H-981 100
981-98J 100
98J-98A 100
99A-99B 75
99B-99C 75
99C-99D 75
99D-99E 150
99E-99F 200
99F-100A 200
100A-100B 200
100B-100C 200
100C-100D 200
100D-100E 200
100E-100F 200
100F-101A 200
101A-101B 200
101B-101C 200


2667
1333
1333
1333
1333
1333
1333
1333
2000
1000
1000
1333
1333
667
667
667
778
320 667
300 667
320 667
300 583
500
500
500
280 396
140 389
160 483
208 1244
240 1222
200 1144
212 2422
224 1211
212 1178
212 1167
208 1089
184 767
184 800
200 858
212 892
216 1233
228 1267
228 650
240 694
260 744
276 783
288 1238
306 1138
1000
1000
1333
1333
1333
1333
1333
1333
1333
1333
1333
1333


-1.67 0.72
0.24 1.50
0.39 2.89
0.25 1.29
0.14 -0.42
-0.21 0.32
-0.27 0.98
-0.71 0.32
-2.17 -1.27
-2.09 -1.48
-0.41 -1.26
0.47 -0.93
0.49 -0.36
-0.18 -0.65
-0.99 -0.91
-0.84 -0.39
-0.84 -0.54
-1.11 -1.22
-1.14 -1.29
-0.89 -1.18
0.16 -1.24
0.63 -1.35
0.28 -1.23
0.33 -0.94
-0.46 -1.36
-1.57 -1.92
-1.21 -1.59
-1.63 -1.41
-3.05 -1.73
-4.06 -2.60
-2.46 -2.02
-0.91 -1.33
-0.81 -1.46
-0.98 -1.48
-1.25 -1.59
-1.60 -1.36
-1.63 -1.09
-1.29 -1.16
-1.44 -1.16
-3.30 -1.61
-4.06 -1.97
-3.72 -1.80
-4.13 -1.94
-4.24 -2.00
-3.78 -1.84
-2.39 -0.95
-1.17 -0.24
-0.91 -1.14
-0.88 -1.49
-0.50 -1.70
-0.78 -2.09
-0.96 -1.54
-0.53 -1.25
-0.35 -0.73
-0.53 -0.64
-0.42 -0.88
-0.18 -1.08
-0.84 -0.97
-1.31 -0.48


2.45 1.64 0.89
4.00 2.23 2.15
4.08 1.77 1.33
1.33 0.82 0.61
-0.50 0.24 0.52
0.10 -0.08 0.38
0.61 -0.17 -0.52
0.47 -0.18 -1.22
-0.78 -0.26 -0.36
-1.38 -0.57 -0.47
-1.35 -0.62 -1.23
-0.83 -0.57 -1.41
-0.24 -0.54 -0.73
-0.01 0.16 0.31
0.04 0.24 0.02
0.13 0.34 0.15
-0.72 -0.87 0.25
-2.11 -1.73 -0.14
-2.68 -1.53 0.09
-2.77 -1.87 0.31
-2.01 -2.31 -0.67
-0.97 -2.62 -1.90
-1.06 -2.17 -1.57
-1.15 -1.89 -1.68
-1.55 -1.78 -1.13
-1.77 -1.26 -0.03
-1.05 -0.67 -0.83
-1.22 -0.64 -0.71
-1.96 -1.42 -0.45
-2.93 -1.65 -0.35
-2.51 -1.25 -0.35
-2.24 -1.21 0.08
-2.83 -1.31 -0.17
-2.38 -1.46 -1.07
-2.45 -1.89 -0.51
-2.18 -1.73 -0.05
-1.60 -1.09 -0.15
-1.72 -1.17 -0.45
-2.03 -1.40 -0.85
-3.28 -2.72 -0.75
-3.43 -3.53 -1.72
-2.49 -3.19 -2.58
-2.68 -2.89 -2.11
-2.68 -2.52 -1.44
-2.24 -2.38 -0.86
-1.52 -1.36 -0.15
-0.39 -0.45 -1.39
0.09 -0.92 -2.93
0.03 -1.02 -1.71
-0.37 -0.91 -1.51
-0.35 -1.15 -1.89
0.54 -0.55 -1.37
0.34 -0.04 -1.02
0.65 0.22 -1.19
1.32 0.15 -1.17
1.27 -0.11 -0.46
0.87 0.10 0.35
0.46 -0.95 -0.79
0.52 -1.15 -1.18


0.39
1.66
1.44
0.64
0.37
0.59
-0.28
-0.75
-0.23
-0.91
-1.48
-0.92
0.14
0.59
-0.02
-0.08
-0.45
-0.74
-0.27
-0.04
-0.23
-0.63
-1.03
-0.94
0.08
0.81
-0.49
-0.84
-0.29
-0.39
-0.43
-0.54
-0.83
-1.36
-0.81
0.39
0.03
0.02
-0.22
0.10
-0.20
-0.89
-0.91
-0.14
0.60
0.17
-1.08
-1.88
-0.98
-0.78
-0.44
0.03
0.14
-0.01
-0.27
0.06
0.90
0.21
-0.53


0.76
1.17
1.79
1.00
0.27
0.60
-0.15
-0.06
0.31
-0.54
-0.65
-0.48
0.01
0.80
0.18
-0.93
-1.25
-0.87
-0.43
-0.34
-0.04
-0.02
-0.66
-0.54
0.51
0.66
-0.64
-1.21
-0.53
-0.06
-0.02
-0.82
-1.05
-0.34
-0.59
-0.17
-0.01
0.13
0.30
-0.11
-0.74
-0.74
0.74
1.51
1.05
0.23
0.06
-0.08
-1.24
-1.20
0.49
0.74
0.53
0.45
-0.18
0.24
0.61
0.17
-1.01


0.85
0.95
0.90
0.35
0.19
0.53
0.23
0.49
0.53
-0.26
-0.06
-0.25
-0.34
0.49
0.89
-1.15
-1.65
-0.62
0.05
0.30
0.33
0.17
-0.51
0.03
1.07
0.78
-0.47
-0.91
-0.45
-0.65
-0.57
-0.94
-1.10
-0.11
0.06
0.14
-0.11
-0.04
0.77
0.99
-0.12
-0.51
0.30
0.52
-0.11
-0.35
0.39
0.22
-0.81
-0.31
0.78
0.53
0.18
-0.04
-0.14
0.63
0.20
-0.21
-0.13


3.14 2.89
7.95 5.92
9.13 5.47
3.69 2.60
-0.54 1.35
0.12 2.10
1.14 -0.72
-0.10 -1.54
-4.47 0.25
-5.52 -2.18
-3.65 -3.41
-1.85 -3.06
-0.66 -0.92
-0.69 2.20
-1.62 1.07
-0.76 -2.01
-2.97 -3.11
-6.17 -2.37
-6.63 -0.56
-6.70 0.23
-5.40 -0.61
-4.30 -2.39
-4.18 -3.76
-3.64 -3.13
-5.15 0.52
-6.52 2.22
-4.52 -2.43
-4.90 -3.68
-8.15 -1.71
-11.25 -1.46
-8.25 -1.37
-5.69 -2.21
-6.40 -3.14
-6.30 -2.88
-7.17 -1.86
-6.87 0.30
-5.40 -0.24
-5.34 -0.33
-6.02 0.01
-10.91 0.23
-12.99 -2.77
-11.21 -4.72
-11.65 -1.98
-11.44 0.45
-10.24 0.67
-6.23 -0.09
-2.25 -2.03
-2.87 -4.67
-3.36 -4.75
-3.48 -3.80
-4.38 -1.06
-2.51 -0.07
-1.48 -0.17
-0.21 -0.78
0.30 -1.76
-0.13 0.47
-0.30 2.06
-2.30 -0.61
-2.42 -2.85


63866 -69.47 -58.24 -49.11 -55.84 -3.1U8 -13.95


Vertical double lines indicate location of reef structure at time of monitoring survey.

111-12


6.03
13.88
14.60
6.29
0.82
2.22
0.43
-1.64
-4.22
-7.70
-7.07
-4.92
-1.58
1.51
-0.55
-2.77
-6.09
-8.54
-7.20
-6.47
-6.02
-6.69
-7.94
-6.77
-4.63
-4.31
-6.95
-8.57
-9.87
-12.71
-9.62
-7.90
-9.54
-9.18
-9.03
-6.57
-5.64
-5.68
-6.01
-10.68
-15.76
-15.93
-13.63
-10.99
-9.57
-6.33
-4.28
-7.54
-8.11
-7.28
-5.44
-2.58
-1.65
-0.99
-1.45
0.34
1.76
-2.91
-5.27


r\n nnnr~ cn~n ~OAOn


-2.39 i..Z -2J3.o7 -o5.io -6o4.oa




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