zaa 1370-rpt-008 rev f dredging turbidity & physical ... 1370-rpt-008... · feasibility study...
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TRANSNET SOC LTD
FEASIBILITY STUDY (FEL 3) FOR THE DEEPENING OF BERTHS 203 TO 205
PORT OF DURBAN
DREDGING TURBIDITY AND PHYSICAL IMPACT STUDY
ZAA 1370| RPT | 008 Rev F
March 2015
Page | 55
7.0 REFERENCES
1. CEM (2002) Coastal Engineering Manual, Part III. Department of the Army, U.S. Army Corps of
Engineers
2. Pennekamp, JGS and Quaak, MP (1990). Impact on the environment of turbidity caused by
dredging. Terra et Aqua, 42, 10‐20.
3. Kirby, R. and Land, J.M. (1991). Impact of dredging: A comparison of natural and manmade
disturbances to cohesive sediment regimes. CEDA‐PIANC conference: Accessible Harbours, Paper
B3, Amsterdam.
4. CSIR (2006). Ben Schoeman Dock Berth Deepening Project. Dredging and Disposal of Dredge Spoil
Modelling Specialist Study. CSIR report CSIR/NRE/ECO/ER/2006/0228/C.
5. Steffani, N, Pulfrich, A, Carter, R and Lane, S (2003). Environmental impact assessment for the
expansion of the container terminal stacking area at the Port of Cape Town – Marine ecological
aspects. Draft report by Pisces Environmental Services, R Carter Specialist Consultant, and Sue
Lane and Associates.
6. Deltares (2011) Delft3D‐FLOW User Manual Version 3.15. Deltares, Delft, The Netherlands.
7. Deltares (2011) Delft3D‐WAVE User Manual Version 3.04. Deltares, Delft, The Netherlands.
8. Deltares (2011) Delft3D‐RGFGRID User Manual Version 4.00. Deltares, Delft, The Netherlands.
9. Deltares (2011) Delft3D‐QUICKIN User Manual Version 4.00. Deltares, Delft, The Netherlands.
10. Underwater Surveys (Pty) Ltd (2012). FEL 3 for the Deepening of Berths 203 and 205 at Pier 2
Durban Container Terminal, project no 1370, Multibeam Bathymetric Survey Berths 203, 204, 205,
Turning Basin and Proposed Dump Site. Survey Operations & Results Report
11. HMG JV (2009). Transnet Capital Projects, Durban Harbour Berth Deepening Feasibility Study
12. Brennan, M.L. et al, Numerical Modeling of Restoration Alternatives in an Erosional Estuary, Proc.
10th International Conference on Estuarine and Coastal Modeling, Spaulding, M.L., Ed., Nov 5‐7,
2007, Newport Rhode Island, AMSCE, 942‐955.
13. Banasiak, R., Verhoeven, R. , Quantification of the Erosion Resistance of Undisturbed and
Remoulded Cohesive Sedimants, Water, Air and Soil Pollution Focus (2006) 6: 381‐391, Springer
Science + Business Media B.V., 2006
14. Mitchener, H., Torfs, H., Erosion of Mud/Sand Mixtures, Coastal Engineering 29 (1996), Elsevier.
TRANSNET SOC LTD
FEASIBILITY STUDY (FEL 3) FOR THE DEEPENING OF BERTHS 203 TO 205
PORT OF DURBAN
DREDGING TURBIDITY AND PHYSICAL IMPACT STUDY
ZAA 1370| RPT | 008 Rev F
March 2015
Page | 56
ANNEXURE 1 BATHYMTERIC SURVEYS : UWS
1
-16.5 CD
X 3308250
Y -7
50
Y -1
50
0
Y -2
25
0
Y -3
00
0
Y -3
75
0
X 3308250
Y -4
50
0
X 3307500 X 3307500
X 3306750 X 3306750
X 3306000 X 3306000
X 3305250X 3305250
Y -1
50
0
Y -2
25
0
Y -3
00
0
Y -3
75
0
Y -4
50
0
Y -7
50
CHART DATUM
BLUE DOLPHIN
PO Bo x 2 6 5 4 6 , Ho u t Ba y , So u t h A f r i ca
SOUNDINGS
WORK SCOPE AREA
M u i z e n b e r g , 7 9 4 5 , So u t h A f r i ca
Durban Harbour Areas
BATHYMETRIC SURVEY
E-m a i l : i n [email protected] l : +2 7 2 1 7 0 9 6 0 0 0 , Fa x : +2 7 2 1 7 88 5302
U n i t 2 S o u t h e r n C r o s s V i l l a g e , C a p r i c o r n B o u l e v a r d S o u t h , C a p r i co rn Pa rk ,
1. BOUNDARIES OF SURVEYED AREAS SUPPLIED BY CLIENT
T h i s d o c u m e n t m a y o n l y b e u s e d f o r t h e p u r p o s e f o r wh i c h i t wa s c o m m i s s i o n e d a n d i n a c c o r d a n c e w i t h t h e t e r m s
VERTICAL DATUM
S c a l e f a c t o r a t C M F a l s e N o r t h i n g F a l s e E a s t i n g L a t i t u d e o f O r i g i n C e n t r a l M e r i d i a n ( C M ) P R O J E C T I O N
I n v e r s e f l a t t e n i n g S e m i m a j o r a x i s E L L I P S O I D
GEODETIC DATUM
HORIZONTAL COORDINATE SYSTEM
12-016_ZAA_HBR_BATHY_CD_DCT1370
LEGEND:
FINAL
Drawing No:C o n t r a c t N o . :
1 o f 2
UNDERWATER SURVEYS (PTY) LTD
Z A A E n g in e e r i n g P ro je c t s & Na v a l A rc h i t e c tu re (P t y ) L td
NOTES:
1
: CHART DATUM- (Port) - 0.9m Below MSL
A ppr :Chkd:D e s c r i p t i o n :
Survey Da te :V e s se l :
I s s u e No:
E n c l :
o f e n g a g e m e n t f o r t h a t c o m m i s s i o n . Un a u t h o r i s e d u s e o f t h i s d o c u m e n t i n a n y f o r m wh a t s o e v e r i s p r o h i b i t e d .
ADM
Dat e:
: 1 . 0: 0 . 0 0 m
Drawn:I n t e r p r :
SHPV
LOCALITY MAP
: WGS 84
: HARTEBEESTHOEK (WGS 84)
GEODETIC PARAMETERS:
APRIL 2012
AJM
: 0 . 0 0 m: 0 °0 0 ' N o r t h: 3 1 ° E a s t: Gauss Conform LO 31
: 298.257223563: 6378137.00
C h a r t :
SCALE 1 : 7500
P r o j e c t R e f : 1 2 / 0 1 6
25-04-2012
MAJOR CONTOUR EVERY 5M
MINOR CONTOUR EVERY 1M
T e l + 2 7 2 1 7 9 1 9 1 0 0 Fa x +2 7 2 1 7 9 1 4 4 7 0
1 ) B e r t h s 2 0 3 t o 2 0 5 , T u r n i n g B a s i n a n d p a r t o f C h a n n e l
800 metres0 40080
2) Sand Bank Per imeter
3 ) L o t 1 0 D o c k a n d c h a n n e l t o t h e T u rn i n g B a s i n
LOT 10 CHANNEL CL < 12M
LOT 10 CHANNEL CL > 12M
Patch Tes t A rea
COLOUR SCALE
SPO
IL G
RO
UN
D E
XIS
TIN
G
SPO
IL G
RO
UND P
RO
PO
SED N
EW
CHART DATUM
BLUE DOLPHIN
PO Bo x 2 6 5 4 6 , Ho u t Ba y , So u t h A f r i ca
SOUNDINGS
WORK SCOPE AREA
M u i z e n b e r g , 7 9 4 5 , So u t h A f r i ca
:
::::::
:::
:
Dump Site
BATHYMETRIC SURVEY
E-m a i l : i n [email protected] l : +2 7 2 1 7 0 9 6 0 0 0 , Fa x : +2 7 2 1 7 88 5302
U n i t 2 S o u t h e r n C r o s s V i l l a g e , C a p r i c o r n B o u l e v a r d S o u t h , C a p r i co rn Pa rk ,
1. BOUNDARIES OF SURVEYED AREAS SUPPLIED BY CLIENT
T h i s d o c u m e n t m a y o n l y b e u s e d f o r t h e p u r p o s e f o r wh i c h i t wa s c o m m i s s i o n e d a n d i n a c c o r d a n c e w i t h t h e t e r m s
VERTICAL DATUM
S c a l e f a c t o r a t C M F a l s e N o r t h i n g F a l s e E a s t i n g L a t i t u d e o f O r i g i n C e n t r a l M e r i d i a n ( C M ) P R O J E C T I O N
I n v e r s e f l a t t e n i n g S e m i m a j o r a x i s E L L I P S O I D
GEODETIC DATUM
HORIZONTAL COORDINATE SYSTEM
12-016_ZAA_DUMP_BATHY_CD_DCT1370
LEGEND:
FINAL
Drawing No:C o n t r a c t N o . :
2 o f 2
UNDERWATER SURVEYS (PTY) LTD
Z A A E n g in e e r i n g P ro je c t s & Na v a l A rc h i t e c tu re (P t y ) L td
NOTES:
1
CHART DATUM (Port) - 0.9m Below MSL
A ppr :Chkd:D e s c r i p t i o n :
Survey Da te :V e s se l :
800 metres
I s s u e No:
E n c l :
o f e n g a g e m e n t f o r t h a t c o m m i s s i o n . Un a u t h o r i s e d u s e o f t h i s d o c u m e n t i n a n y f o r m wh a t s o e v e r i s p r o h i b i t e d .
ADM
Dat e:
0
1 . 0 0 .00 m
Drawn:I n t e r p r :
400
SHPV
LOCALITY MAP
WGS 84
HARTEBEESTHOEK (WGS 84)
GEODETIC PARAMETERS:
APRIL 2012
AJM
0 .00 m 0 °0 0 ' N o r t h
3 1 ° E a s tGauss Conform LO 31
2 9 8 . 2 5 7 2 2 3 5 6 3 6 3 7 8 1 3 7 . 0 0
C h a r t :
SCALE 1 : 7500
80
P r o j e c t R e f : 1 2 / 0 1 6
25-04-2012
MAJOR CONTOUR EVERY 5M
MINOR CONTOUR EVERY 1M
EXISTING DUMP SITE BOUNDARY
T e l + 2 7 2 1 7 9 1 9 1 0 0 Fa x +2 7 2 1 7 9 1 4 4 7 0
1 ) P a r t E x i s t i n g a n d P a r t P ro p o s e d S p o i l A re a s
SPO
IL G
RO
UND P
RO
PO
SED N
EW
-9
0.2
-9
0.8
-8
9.6
-8
9.9
-9
0.6
-8
8.7
-8
9.2
-8
9.6
-9
0.2
-9
1.0
-8
7.4
-8
7.6
-8
8.0
-8
8.4
-8
8.5
-8
9.2
-8
9.8
-9
0.2
-9
0.3
-8
7.0
-8
7.3
-8
7.4
-8
7.4
-8
8.0
-8
8.3
-8
8.8
-8
9.4
-8
9.7
-9
0.3
-9
0.4
-8
6.4
-8
5.2
-8
5.4
-8
5.8
-8
6.3
-8
6.5
-8
6.8
-8
7.2
-8
7.4
-8
7.5
-8
7.9
-8
8.4
-8
8.8
-8
9.5
-8
9.9
-9
0.4
-9
1.2
-8
4.4
-8
5.1
-8
5.2
-8
5.6
-8
5.6
-8
5.8
-8
6.4
-8
7.3
-8
7.2
-8
7.6
-8
7.8
-8
8.3
-8
8.5
-8
9.1
-8
9.7
-9
0.1
-9
0.5
-9
0.9
-8
3.5
-8
3.8
-8
4.1
-8
4.3
-8
4.8
-8
5.3
-8
5.5
-8
5.5
-8
5.9
-8
6.5
-8
6.8
-8
7.0
-8
7.3
-8
8.2
-8
8.4
-8
9.0
-8
9.2
-8
9.8
-8
9.8
-9
0.7
-8
2.8
-8
3.1
-8
3.5
-8
3.5
-8
3.9
-8
4.5
-8
4.8
-8
4.8
-8
5.3
-8
5.6
-8
5.6
-8
6.0
-8
6.1
-8
6.6
-8
7.3
-8
7.9
-8
8.4
-8
8.5
-8
8.9
-8
9.4
-8
9.9
-9
0.4
-
81
.4
-8
2.0
-8
2.4
-8
2.7
-8
3.1
-8
3.2
-8
3.7
-8
4.0
-8
4.6
-8
4.5
-8
4.8
-8
5.1
-8
5.1
-8
5.4
-8
5.7
-8
6.1
-8
6.9
-8
7.5
-8
7.6
-8
7.9
-8
8.4
-8
9.1
-8
9.5
-9
0.4
-9
0.5
-7
9.1
-7
9.9
-8
0.3
-8
0.9
-8
1.4
-8
1.9
-8
2.4
-8
2.8
-8
2.9
-8
3.5
-8
3.7
-8
3.5
-8
3.9
-8
4.3
-8
4.7
-8
4.8
-8
5.4
-8
5.2
-8
5.4
-8
6.0
-8
6.4
-8
7.3
-8
7.8
-8
8.3
-8
8.8
-8
9.4
-8
9.9
-9
0.3
-7
8.1
-7
8.9
-7
9.6
-8
0.1
-8
0.7
-8
1.0
-8
1.5
-8
1.8
-8
2.3
-8
2.3
-8
3.0
-8
3.2
-8
3.2
-8
3.6
-8
3.8
-8
4.1
-8
4.3
-8
4.9
-8
4.7
-8
5.5
-8
5.9
-8
6.7
-8
7.1
-8
7.8
-8
8.1
-8
8.8
-8
9.5
-9
0.0
-9
0.4
-7
5.0
-7
5.7
-7
6.6
-7
7.7
-7
8.3
-7
9.1
-7
9.6
-8
0.3
-8
0.5
-8
1.2
-8
1.5
-8
1.8
-8
2.0
-8
2.3
-8
2.7
-8
2.7
-8
3.1
-8
3.8
-8
3.9
-8
3.9
-8
4.1
-8
4.2
-8
4.5
-8
5.0
-8
5.6
-8
6.0
-8
6.6
-8
7.3
-8
7.7
-8
8.7
-8
8.9
-8
9.5
-8
9.9
-9
0.4
-
73
.9
-7
4.7
-7
5.4
-7
6.1
-7
7.1
-7
7.5
-7
8.6
-7
9.1
-7
9.8
-8
0.1
-8
0.5
-8
1.0
-8
0.9
-8
1.0
-8
1.6
-8
2.1
-8
2.6
-8
2.9
-8
2.7
-8
3.1
-8
3.1
-8
3.6
-8
3.8
-8
3.8
-8
4.3
-8
5.2
-8
6.1
-8
5.8
-8
6.9
-8
7.3
-8
8.2
-8
8.5
-8
9.2
-8
9.4
-9
0.0
-9
0.3
-7
2.2
-7
2.8
-7
3.6
-7
4.0
-7
4.9
-7
5.4
-7
6.5
-7
6.9
-7
7.7
-7
8.3
-7
8.9
-7
9.5
-8
0.2
-8
0.5
-8
0.6
-8
0.4
-8
1.1
-8
1.9
-8
2.1
-8
2.5
-8
2.2
-8
2.8
-8
3.1
-8
3.6
-8
2.9
-8
3.8
-8
4.0
-8
4.1
-8
5.0
-8
5.1
-8
6.2
-8
6.7
-8
7.7
-8
8.2
-8
8.6
-8
9.2
-8
9.9
-9
0.1
-7
2.0
-7
2.0
-7
2.2
-7
2.4
-7
3.1
-7
3.6
-7
4.3
-7
4.8
-7
5.6
-7
6.5
-7
7.1
-7
7.9
-7
8.5
-7
9.3
-8
0.0
-8
0.0
-8
0.0
-8
0.5
-8
1.3
-8
1.5
-8
2.0
-8
2.2
-8
2.7
-8
3.4
-8
3.0
-8
3.1
-8
3.9
-8
3.7
-8
3.6
-8
4.4
-8
4.7
-8
5.8
-8
6.2
-8
7.0
-8
7.8
-8
8.3
-8
8.6
-8
9.3
-8
9.8
-9
0.4
-
71
.5
-7
1.7
-7
1.9
-7
2.0
-7
1.9
-7
2.2
-7
2.6
-7
3.3
-7
3.6
-7
4.1
-7
4.8
-7
5.8
-7
6.4
-7
7.1
-7
8.1
-7
8.4
-7
9.1
-7
9.4
-7
9.7
-7
9.9
-7
9.6
-8
0.5
-8
1.2
-8
1.6
-8
2.0
-8
2.2
-8
2.8
-8
2.5
-8
2.8
-8
3.1
-8
3.6
-8
3.7
-8
4.6
-8
4.0
-8
4.9
-8
5.6
-8
6.5
-8
7.4
-8
8.1
-8
8.4
-8
8.7
-8
9.2
-8
9.8
-9
0.4
-7
1.5
-7
1.6
-7
1.5
-7
2.0
-7
1.8
-7
2.3
-7
2.5
-7
2.7
-7
3.2
-7
3.4
-7
4.2
-7
4.7
-7
5.9
-7
6.3
-7
7.1
-7
7.5
-7
8.3
-7
8.8
-7
9.2
-7
9.5
-7
9.7
-8
0.5
-8
0.8
-8
1.4
-8
1.6
-8
2.1
-8
2.0
-8
2.1
-8
2.3
-8
3.2
-8
3.2
-8
3.4
-8
3.5
-8
4.0
-8
4.5
-8
5.6
-8
5.7
-8
6.6
-8
7.4
-8
7.8
-8
8.5
-8
9.3
-8
9.6
-9
0.2
-7
1.2
-7
1.3
-7
1.6
-7
1.7
-7
2.0
-7
1.9
-7
2.2
-7
2.3
-7
2.6
-7
3.0
-7
3.9
-7
4.1
-7
4.7
-7
5.6
-7
5.8
-7
6.6
-7
7.5
-7
7.8
-7
8.5
-7
9.1
-7
9.2
-7
9.7
-8
0.3
-8
1.0
-8
1.4
-8
1.7
-8
2.4
-8
2.3
-8
2.4
-8
2.9
-8
3.0
-8
3.1
-8
3.1
-8
3.4
-8
4.4
-8
4.6
-8
5.5
-8
6.0
-8
6.6
-8
7.5
-8
7.9
-8
8.6
-8
9.1
-8
9.5
-9
0.3
-7
0.9
-
70
.2
-7
0.8
-7
1.5
-7
1.6
-7
1.7
-7
1.6
-7
1.7
-7
1.6
-7
1.9
-7
2.0
-7
2.4
-7
2.9
-7
3.4
-7
3.9
-7
5.0
-7
5.4
-7
5.6
-7
6.6
-7
7.5
-7
7.8
-7
8.7
-7
8.8
-7
9.1
-8
0.2
-8
0.1
-8
1.1
-8
1.5
-8
1.7
-8
2.4
-8
1.7
-8
2.4
-8
3.0
-8
3.0
-8
3.2
-8
3.6
-8
3.6
-8
3.9
-8
4.8
-8
5.7
-8
6.4
-8
7.0
-8
7.9
-8
8.9
-8
8.8
-8
9.2
-8
9.8
-9
0.4
-
70
.3
-7
0.9
-7
1.2
-7
1.3
-7
1.2
-7
1.5
-7
1.3
-7
1.6
-7
1.6
-7
1.6
-7
1.9
-7
2.3
-7
3.0
-7
3.5
-7
4.5
-7
4.9
-7
5.5
-7
6.2
-7
6.9
-7
7.8
-7
8.5
-7
9.1
-7
9.2
-7
9.8
-8
0.6
-8
1.1
-8
1.7
-8
1.9
-8
1.7
-8
2.1
-8
2.2
-8
2.9
-8
3.1
-8
3.5
-8
3.6
-8
3.7
-8
4.1
-8
4.2
-8
5.2
-8
6.8
-8
7.9
-8
8.3
-8
8.7
-8
9.7
-9
0.1
-7
0.2
-7
0.7
-7
1.1
-7
1.0
-7
0.9
-7
1.4
-7
1.4
-7
1.5
-7
1.4
-7
1.1
-7
1.3
-7
2.1
-7
2.4
-7
3.6
-7
4.4
-7
4.5
-7
5.1
-7
6.3
-7
7.4
-7
7.5
-7
8.3
-7
8.6
-7
9.2
-8
0.0
-8
0.7
-8
1.1
-8
1.6
-8
1.8
-8
1.9
-8
2.7
-8
3.1
-8
3.3
-8
3.5
-8
3.8
-8
3.3
-8
3.5
-8
3.3
-8
4.3
-8
5.0
-8
6.6
-8
7.4
-8
7.8
-8
8.6
-8
9.0
-8
9.4
-7
0.6
-7
0.7
-7
0.8
-7
1.1
-7
1.2
-7
1.4
-7
1.2
-7
1.0
-7
0.5
-7
1.0
-7
1.4
-7
1.6
-7
2.2
-7
2.6
-7
3.9
-7
4.2
-7
5.0
-7
6.2
-7
6.4
-7
7.4
-7
8.1
-7
8.8
-7
9.4
-8
0.5
-8
1.0
-8
1.4
-8
1.5
-8
2.4
-8
2.5
-8
2.8
-8
2.5
-8
3.1
-8
3.2
-8
3.0
-8
2.5
-8
3.3
-8
3.9
-8
5.8
-8
6.0
-8
6.8
-8
7.3
-8
8.5
-8
9.0
-8
9.4
-8
9.9
-9
0.2
-
70
.6
-7
0.2
-7
0.4
-7
1.0
-7
1.1
-7
0.9
-7
1.2
-7
1.1
-7
0.3
-7
0.7
-7
0.8
-7
0.8
-7
1.1
-7
1.9
-7
2.2
-7
3.4
-7
3.9
-7
4.2
-7
6.0
-7
6.9
-7
7.4
-7
7.9
-7
8.8
-7
9.5
-8
0.5
-8
1.0
-8
1.7
-8
2.2
-8
2.5
-8
2.7
-8
2.9
-8
2.9
-8
3.2
-8
2.7
-8
2.8
-8
3.7
-8
3.1
-8
4.6
-8
5.3
-8
6.2
-8
6.9
-8
8.3
-8
8.9
-8
9.0
-8
9.6
-9
0.1
-6
9.9
-7
0.4
-7
0.9
-7
0.9
-7
1.0
-7
1.2
-7
1.1
-7
0.8
-7
0.6
-6
9.9
-7
0.6
-7
0.5
-7
1.2
-7
1.6
-7
2.3
-7
3.3
-7
3.9
-7
5.0
-7
6.0
-7
6.8
-7
7.4
-7
8.4
-7
8.9
-8
0.0
-8
0.9
-8
1.3
-8
1.7
-8
2.0
-8
2.4
-8
3.0
-8
2.8
-8
2.8
-8
2.7
-8
3.3
-8
3.3
-8
3.5
-8
4.1
-8
5.2
-8
6.1
-8
6.8
-8
7.9
-8
8.2
-8
8.6
-8
9.1
-8
9.3
-8
9.7
-7
0.2
-7
0.7
-7
1.0
-7
1.0
-7
1.1
-7
1.2
-7
0.9
-7
0.5
-6
9.9
-6
9.6
-6
9.4
-6
9.3
-7
0.4
-7
1.5
-7
2.1
-7
3.5
-7
3.9
-7
4.9
-7
6.3
-7
6.8
-7
7.4
-7
8.4
-7
9.5
-8
0.3
-8
0.6
-8
1.4
-8
1.9
-8
2.0
-8
2.5
-8
2.7
-8
2.6
-8
2.9
-8
3.3
-8
3.4
-8
3.5
-8
4.3
-8
4.8
-8
5.4
-8
6.2
-8
7.2
-8
7.8
-8
8.1
-8
8.7
-8
9.3
-8
9.7
-9
1.2
-7
0.2
-7
0.8
-7
1.1
-7
1.2
-7
1.0
-7
0.8
-7
0.5
-6
9.9
-6
9.3
-6
9.6
-6
9.4
-6
9.3
-7
0.3
-7
1.1
-7
1.7
-7
3.2
-7
4.2
-7
5.0
-7
6.6
-7
7.4
-7
8.1
-7
8.9
-7
9.8
-8
0.4
-8
1.1
-8
1.6
-8
1.6
-8
2.0
-8
2.3
-8
2.5
-8
2.6
-8
2.7
-8
2.9
-8
3.6
-8
3.7
-8
4.0
-8
4.6
-8
5.6
-8
6.6
-8
7.4
-8
8.0
-8
8.8
-8
9.1
-8
9.6
-9
0.0
-8
9.9
-
70
.8
-7
0.3
-7
0.8
-7
1.1
-7
1.0
-7
1.1
-7
0.6
-7
0.1
-6
9.7
-6
9.1
-6
9.1
-6
9.5
-7
0.5
-7
0.4
-7
1.5
-7
2.2
-7
3.2
-7
4.8
-7
5.6
-7
6.8
-7
7.4
-7
8.4
-7
8.9
-8
0.1
-8
0.6
-8
1.3
-8
1.6
-8
1.9
-8
1.8
-8
2.1
-8
1.8
-8
2.5
-8
3.0
-8
3.2
-8
3.3
-8
4.0
-8
4.1
-8
5.3
-8
6.4
-8
7.2
-8
7.8
-8
8.7
-8
8.9
-8
9.2
-8
9.5
-9
0.1
-7
0.5
-7
0.6
-7
1.0
-7
0.9
-7
0.9
-7
0.9
-7
0.3
-7
0.0
-6
9.8
-6
9.1
-6
8.3
-6
8.9
-6
9.2
-7
0.3
-7
1.1
-7
2.5
-7
3.8
-7
6.1
-7
7.3
-7
8.1
-7
8.9
-7
9.8
-8
0.2
-8
0.8
-8
0.8
-8
1.1
-8
1.3
-8
1.1
-8
0.9
-8
0.5
-8
1.1
-8
2.1
-8
3.2
-8
4.2
-8
4.5
-8
5.3
-8
6.4
-8
7.3
-8
8.0
-8
8.5
-8
8.9
-8
9.2
-8
9.5
-8
9.8
-9
0.5
-
70
.6
-7
0.8
-7
0.8
-7
0.5
-7
0.7
-7
0.7
-6
9.9
-6
9.5
-6
9.3
-6
9.2
-6
8.8
-6
9.3
-7
1.4
-7
2.1
-7
3.5
-7
4.4
-7
6.0
-7
6.8
-7
8.0
-7
8.4
-7
9.2
-7
9.6
-8
0.2
-7
9.8
-7
9.9
-8
0.4
-8
0.4
-7
9.9
-7
9.8
-7
9.9
-8
1.6
-8
3.0
-8
3.8
-8
4.4
-8
5.1
-8
6.0
-8
7.0
-8
7.3
-8
7.7
-8
8.1
-8
8.7
-8
9.1
-8
9.7
-9
0.4
-7
0.5
-7
0.8
-7
1.0
-7
0.9
-7
0.9
-7
0.7
-7
0.0
-6
9.5
-6
9.7
-6
9.4
-6
9.2
-7
0.2
-7
1.4
-7
2.8
-7
3.9
-7
5.1
-7
6.0
-7
7.3
-7
8.1
-7
8.4
-7
8.6
-7
8.4
-7
7.8
-7
8.4
-7
8.7
-7
9.3
-7
8.9
-7
8.5
-7
9.2
-8
0.7
-8
2.1
-8
3.6
-8
4.3
-8
5.3
-8
5.9
-8
6.6
-8
7.1
-8
7.8
-8
8.2
-8
8.4
-8
9.1
-9
0.0
-7
0.5
-7
0.6
-7
1.0
-7
0.9
-7
0.8
-7
0.8
-7
0.5
-6
9.9
-6
9.4
-6
9.3
-6
9.0
-6
9.1
-7
0.5
-7
1.0
-7
2.0
-7
3.3
-7
4.7
-7
5.9
-7
6.7
-7
7.8
-7
7.9
-7
7.8
-7
7.9
-7
6.5
-7
7.0
-7
8.0
-7
8.4
-7
8.5
-7
8.7
-7
9.3
-8
0.9
-8
2.3
-8
3.6
-8
4.7
-8
5.3
-8
5.7
-8
6.4
-8
6.7
-8
7.6
-8
8.3
-8
8.7
-7
0.3
-7
0.7
-7
1.1
-7
1.1
-7
1.1
-7
0.8
-7
0.6
-6
9.8
-6
9.4
-6
9.7
-6
9.6
-7
0.1
-7
1.5
-7
1.6
-7
3.0
-7
4.0
-7
5.1
-7
5.7
-7
6.9
-7
7.4
-7
7.2
-7
6.6
-7
6.0
-7
5.0
-7
6.4
-7
8.1
-7
8.6
-7
9.2
-8
0.1
-8
1.7
-8
2.6
-8
3.7
-8
4.3
-8
4.9
-8
5.7
-8
6.4
-8
6.4
-8
8.4
-8
9.0
-8
4.9
-7
0.3
-7
0.9
-7
1.1
-7
0.9
-7
0.7
-7
0.9
-7
0.4
-6
9.8
-6
9.5
-6
9.2
-7
0.2
-7
2.0
-7
2.5
-7
3.6
-7
4.4
-7
4.9
-7
5.8
-7
6.9
-7
7.5
-7
6.6
-7
5.6
-7
6.3
-7
6.4
-7
8.3
-7
9.2
-8
0.2
-8
1.7
-8
2.1
-8
2.7
-8
3.5
-8
4.2
-8
4.8
-8
5.5
-8
7.1
-8
6.8
-
84
.7
-7
0.6
-7
0.8
-7
0.9
-7
0.9
-7
0.7
-7
0.6
-7
0.6
-7
0.0
-7
0.0
-7
0.5
-7
0.5
-7
1.2
-7
2.4
-7
2.9
-7
3.7
-7
4.0
-7
4.8
-7
6.0
-7
7.3
-7
7.3
-7
6.9
-7
7.0
-7
7.8
-7
8.9
-8
0.0
-8
1.2
-8
1.8
-8
2.3
-8
2.7
-8
3.3
-8
3.8
-8
4.9
-8
5.6
-
83
.7
-7
0.6
-7
0.4
-7
0.8
-7
0.8
-7
0.7
-7
0.8
-7
0.6
-7
0.1
-7
0.3
-7
0.4
-7
0.8
-7
1.1
-7
1.9
-7
2.4
-7
3.0
-7
3.4
-7
3.9
-7
5.2
-7
6.6
-7
7.4
-7
7.9
-7
8.0
-7
8.7
-7
9.6
-8
0.4
-8
1.2
-8
1.7
-8
2.1
-8
2.6
-8
3.1
-8
3.7
-7
0.5
-7
0.5
-7
0.6
-7
0.9
-7
0.9
-7
1.0
-7
0.6
-7
0.8
-7
0.5
-7
1.1
-7
1.3
-7
1.6
-7
2.4
-7
3.0
-7
3.1
-7
3.5
-7
4.4
-7
6.0
-7
7.4
-7
8.2
-7
8.7
-7
9.3
-8
0.1
-8
0.6
-8
1.3
-8
1.4
-8
1.9
-8
2.2
-8
3.0
-8
2.5
-7
0.5
-7
0.5
-7
0.9
-7
0.8
-7
0.9
-7
0.7
-7
0.5
-7
0.9
-7
0.8
-7
1.1
-7
1.4
-7
2.2
-7
3.3
-7
3.2
-7
3.6
-7
4.3
-7
5.9
-7
6.9
-7
7.8
-7
8.9
-7
9.6
-8
0.2
-8
0.6
-8
1.9
-8
1.4
-8
2.0
-7
1.1
-7
0.2
-7
0.5
-7
0.6
-7
0.8
-7
0.9
-7
1.0
-7
1.1
-7
1.1
-7
1.3
-7
1.4
-7
1.9
-7
2.6
-7
3.1
-7
3.7
-7
4.4
-7
5.2
-7
6.6
-7
7.4
-7
8.5
-7
9.1
-7
9.6
-7
9.9
-8
0.4
-
69
.7
-7
0.7
-7
0.5
-7
0.9
-7
1.0
-7
1.1
-7
1.3
-7
1.4
-7
1.4
-7
1.5
-7
1.8
-7
2.3
-7
3.2
-7
3.6
-7
4.3
-7
4.9
-7
6.2
-7
6.9
-7
7.7
-7
8.3
-7
9.0
-7
0.7
-7
0.7
-7
0.7
-7
1.2
-7
1.2
-7
1.4
-7
1.4
-7
1.5
-7
1.8
-7
2.2
-7
2.5
-7
2.9
-7
3.5
-7
4.1
-7
4.7
-7
5.4
-7
5.8
-7
6.8
-7
0.4
-7
0.9
-7
1.2
-7
1.3
-7
1.3
-7
1.5
-7
1.7
-7
1.9
-7
2.0
-7
2.5
-7
2.9
-7
3.3
-7
3.5
-7
4.1
-7
4.8
-7
5.4
-7
3.6
-7
0.6
-7
1.1
-7
1.5
-7
1.5
-7
1.7
-7
1.9
-7
2.0
-7
2.2
-7
2.4
-7
2.7
-7
3.0
-7
3.2
-7
0.7
-7
0.7
-7
1.2
-7
1.5
-7
2.0
-7
1.9
-7
2.1
-7
2.3
-7
2.3
-7
2.3
-7
2.7
-7
0.6
-7
1.2
-7
1.6
-7
1.6
-7
1.8
-7
2.2
-7
2.2
-7
2.2
-7
1.1
-7
1.5
-7
1.6
-7
2.1
-7
1.7
-7
1.4
-7
1.5
-7
1.6
-8
4.8
PROPOSED DUMP SITE BOUNDARY
COLOUR SCALE
TRANSNET SOC LTD
FEASIBILITY STUDY (FEL 3) FOR THE DEEPENING OF BERTHS 203 TO 205
PORT OF DURBAN
DREDGING TURBIDITY AND PHYSICAL IMPACT STUDY
ZAA 1370| RPT | 008 Rev F
March 2015
Page | 59
ANNEXURE 2 : DREDGING DESIGN ALTERNATIVES