Enayam Port

Tamil Research Institute
RAPID TECHNO-ECONOMIC FEASIBILITY REPORT FOR
DEVELOPMENT OF COLACHEL PORT AT TAMILNADU
FINAL REPORT
Figure 134: TSHD discharging by rainbow
Operation time required to discharge through the pipeline or cannon is about 1 hour. However, few minutes are
required to discharge by means of opening the bottom. They are really efficient to dredge loose material and they
have positioning and sailing advanced systems to guarantee the depth accuracy.
A small-size TSHD (2,000 m 3 of hopper capacity) is suggested to dredge both at the first stage of the works
9.5.3. Reclamation Works
Around 10.1 million cubic meters will be required for reclamation in Phase 1, broken down as shown in the
following table:
ZONE
AREA
(Ha)
QUANTITY (up to +2.00m)
(Cu.m)
Container terminal 41.1 6,021,505
General services and multipurpose area 19.1 2,618,344
Entry/exit gate 3.5 220,337
Administration area 3.2 209,178
Future industrial area 30.8 2,562,986
Reclamation bunds - -1,509,077
TOTAL 97.7 10,123,273
Table 35. Breakdown of land reclamation quantities.
By contrast, a total dredging of around 6.8 million cubic meters will be required on Phase 1, so the rest of required
material for reclamation (around 3.3 million cubic meters) must be obtained from other sources. It can be transported
from quarries near Colachel, but the easiest and cheapest way to obtain that material is using the same dredging
equipment and by dredging the basin of future Phases 2 and 3. This way dredging costs on Phase 2 and 3 is
reduced.
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