128
MINIMUM DEPTH OF WATER IN THE
CHANNEL OR ON THE BAR.
MAXIMUM DEPTH AT OPEN QUAYS.
PORT.
ATTAINED AT
PROJECTED
AVAILABLE
PROJECTED
AT
AT
L.W.O.S.T.
H.W.O.N.T. L.W.O.S.T.
L.W.O.S.T.
AT L.W.O.S.T.
Ft. in.
Ft.
in.
Ft.
in.
Ft.
in.
Ft. in.
Shanghai
25
0
31
0
30
0
35
0
Kobe......
36
0
36
0
Yokohama (pre
Earthquake,
1923)
33
37 6
35
0
Victoria
30
0
36
0
30
35
0.
Vancouver
35
0
43
3
35
35
0
Seattle
600
0
607
0
43
0
Portland
(Oregon)
33
37
6
40
0
28
0
35
San Francisco
32
36
0
35
0
The foregoing information would indicate that ships with a draught of more than 34 feet are not likely to frequent the port for many years to come. Quay Walls to accom- modate vessels drawing 34 feet will require to have 36 feet depth of water alongside at L.W.O.S.T.
The Consulting Engineers in their Scheme at Hung Hom Bay recommend that the maximum depth of 37 feet at L.W.O.S.T. be provided at all quays. One would not mind providing any maximum at every quay if there is sufficient percentage of ships to make full use of it but it is a very unattractive proposition to see the depth occupied occasionally and being the rest of its time used by ships of the coaster class, the present maximum draught of which vessels as already stated being 22'-6". The shipping interests of the Port might be satisfied that any works provided, conform to a reasonable ideal if at some part or parts of the scheme of development, provision is made to accom-- modate vessels loaded to a draught of 34 feet at the time of L.W.O.S.T.
CONSIDERATION OF THE PROBABLE INCREASE IN THE DRAUGHT OF
COASTER STEAMERS.
Controlling depths of Water at Coast Port and draughts to which vessels may load at same.
The following table gives the controlling depth of water at L.W.O.S.T. to or at the coast ports mentioned therein and the draught to which vessels may load to enter or leave these ports at High Water of Neap Tides.