48
PORTS AND HARBOURS OF THE BRITISH EMPIRE:
AUSTRALIA.
40
588
Question.
(1) the minimum width ? (2) the
minimum
Adelaide.
At bar or entrance, what The entrance is from the 8t. is:-
Vincent Gulf, the least depth up to the examination anchor- age being 40 ft. (L.W.0.6.T.) and over, and the width of the channel being
navigable depth. L.W.O.B.T.? (Note-If between the en-
trance and the deep sea there are bars or shoals where a lesser depth Occurs than the mini- mum indicated above, a list of such obstructions and of the depths over them (L.W.0.8.T.) should be given.)
Brisbane,
At main entrance to Moreton Bay; width ft.. depth 33 ft. (L.W.0.8.T.).
Fremantle.
The bar at the entrance to the Swun River has been dredged to a depth of 30 ft, at lower low water in a channel 450 ft. in width. [N.B. Frem datum is about 2 ft. Benw Admiralty datum.]
}
Hobart.
Width about 2 miles. Depth 54 ft. (LW.0.8.T.)
Melbourne.
At Port Philip Heads—
Width 2,000 ft.
(being
Depth 37 ft. (L.W.0.S.T.)
deepened to 43 ft. (L.W.Q.S.T}) for channel of 1,000 PE.
Sydney.
The width of the channel at the Heads ia
and the depth 80 ft. (L.W.O.S.T.).
2. In the approach channel from bar or entrance to berthing accommodation, what is:
(1) the minimum and
maximum width? (2) the minimum and maximum depth. L.W.O.S.T.?
3. What is
(1) the rise and fall of tides
(a) ordinary springs.
(b) ordinary neaps ?
(2) the rise of ordinary
neaps above L.W.0.8.T.?
From the examination anchor- age to the quays at Port Adelaide (Outer Harbour) there is a dredged channel 400 ft. wide and 33 ft. deep (L.W.0.S.T.).
From Moreton Bay to Pin
kenba-
(1) Width of dredged chan-
nel, 400 ft.
(2) Depth of dredged channel 24 ft.
(L.W.0.8.T.). From Pinkenba to Brisbane-
(1) Width of dredged chan-
nel, ft.
(2) Depth of dredged channel,
ft. (L.W.0.8.T.).
At Port Adelaide (Onter Har- In Brisbane River—
hour):-
(1) (a) Ordinary spriage.
R ft. to 10 ft.
(b) Ordinary neaps, 3
(2)
ft. to 5 ft.
At Port Adelaide (Inner Har-
bour) --
(1) (a) Ordinary springe.
(1) (a) Ordinary springs. 7
ft. to 8 ft.
(2)
(b) Ordinary neaps, 3 ft.
6 ina. to 5 ft.
In Moreton Bay-
One foot lew.
This channel continues into the main harbour at the same depth, but the width increases" to 575 ft.
There are
no regular luuar tides. but there is normally a daily rise of about 2 ft. Tides are greatly affected by wind, and in hoary winter gales rise to 5 ft.
(1) (a) Ordinary springs, 4 ft.
(b) Ordinary neups, 34 ft.
(2)
From the Hends to the open water of Port Philip Bay the South Channel has u minimum depth of 32 ft. (L.W.O.S.T.) and a minimum width of ft. Port Philip Bay itself is an inland sea
with deep water.
From the Bay to the Railway Pier at Port Melbourne the width of the channel is and the depth is 30-37 E (L.W.O.S.T.).
At the Heads-
(1) (a) Ordinary springa, 7 ft.
In the Eastern and Western Channels which lie between Inner South Hend and George's Head the width is 7007 It. and the depth 40 ft. (L.W.0,8,T). After passing these chunnels the harbour opens out and there is deep water, 40 ft. (L.W.O.S.T.) or more, to the heart of Sydney,
(1) (a) Ordinary springs. 5 ft. 3 ina. to
6 ft.
(b) Ordinary neaps, 3 ft. 6 ins. to 4 ft.
(b) Ordinary neaps, 3 ft. 6 ins.
(2)
(2)
At Port Melbourne
(1) (a) Ordinary springs, 2 ft. 8 ins.
(b) Ordinary nesps, 2 ft. 2 ins.
(2)
4. What is the maximum available depth of water- (a) at piers or wharves,
L.W.0.S.T.?
(b) in the case of enclosed docks, in the ex- trance locks. if any, and at dock quays, H.W.O.N.T.
8 ft. 6 ins.
(b) Ordinary neapa, 3
ft.
(2)
No enclosed docks.
No enclosed docks.
No enclosed docka.
Maximum available depth at Maximum available depth at Maximum available depth st
quaya
qays
33 A. (L.W.O.8.T.) at Port Adelaide (Onter Harbour).
At Pinkenbu
(L.W.U.S.T.).
27
£t.
Elsewhere, generally 24 ft.
(L.W.O.S.T.).
quays:
30 ft. (below
Bremantle datum) at lowest low water.
No enclosed docks.
Maximum available depth at quys :—
36 ft. (L.W.0.S.T.) at inner end and 60 ft. (L.W.0.8.T.) at outer end of Pier No. 1.
No enclosed docks. Maximum available depth at quays :——
At the Railway Pier, Port Melbourne,
30 ft. (L.W.Ö.S.T.).
At the wharves on the River Yarra, 26 ft. (L.W.0.8.T.).
No enclosed docks.
Maximum available depth at quays-
30 ft. to 50 ft. (L.W.0.S.T.
5 What are the respective lengths of piers, wharves; or in the case of enclosed docks) dock quays, where the maximum depth of water, referred to in Question 4, exists?
What percentage does the total of these lengths bear to the total accommo dation at the port ?
This depth of 33ft.(L.W.OST.) is found for a length of 2,200 ft. at Port Adelaide (Outer Harbour). This is the whole of the accommoda- tion at the Onter Harbour.
At Port Adelaide (Inner Har- bour) there are 5,000 ft.
of Government-owned wharf and 17,000 ft. privately owned.
The present wharfage is 8,300 ft. dredged to a uniform depth
of 30 ft. at lowest low water.
Pier No. 1 is 750 ft. long on the north and 1,250 ft. long on the south side, und
ft. and of these lengthe
ft. respec- tively have a depth of 40 ft. and over (L.W.0.8.T.).
The total length of quays in the port is
13,240 ft.
This depth of 30 ft. (L.W.O.S.T.) is available for a length of 2,000 ft. at the Railway Pier.
Total length of wharves, 8:33
At the present time the approximate length of berthing space, exclusive of ferry wharves, jetties, &c. is 55,000 ft. giving approximately 115 berths.
A 19220 App Biter des
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