Page 365 - untitled

Basic HTML Version

1. At bar or entrance, what is :—
(1) the minimum width .
(2) the minimum navigable depth, L.W.OJS.T.?
{N JI\—If between the entrance and the deep
sea there are bars or shoals where a lesser
depth occurs than the -minimum indicated.
above, a list of such obstructions and of the
depths over them (L.W.O.S.T.) should be
2. In the approach channel from bar or entrance
to berthing accommodation, what is :—
(1) the minimum and m a x i m u m width ?
(2) the minimnm and m a x i m u m 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 ordinarv neaps above
L.W.O.S.T. ?
4. What is the m a x i m u m available depth of
(a) at piers or wharves, L.W.O.S.T. ?
(b) in the case of enclosed docks in the
entrance locks, if any, and at dock
quays, H.W.O.N.T. ?
5. What are the respective lengths o* piers,
wharves, or (in the case of enclosed docks)
dock quays, where the m a x i m u m depth of
water, referred to in Question 4, exists ?
What percentage does the total of these
lengths bear to the total accommodation at the
port ?
6. What are the dimensions (length, loaded
draught, and beam at that draught) of the
largest vessels which under existing circum–
stances, can b e —
(a) berthed alongside anv pier or wharf
(L.W.O.S.T.) ?
(b) in the case of enclosed docks—
(1) admitted direct to ?
(2) admitted through the entrance lock of
any important dock or docks, H.W.O.N.T.?
7. What are the dimensions (length, breadth, and
depth over sill H.W.O.N.T.) of the largest dry
dock orfloatingdock in the port ?
8. Are operations in progress to increase the
depth of water—
(a) at the entrance and in the approach
(b) in the case of enclosed docks, at the
entrance lock, if any, of any important
dock or docks—
(c) at the principal berths—
to 40 feet at L.W.O.S.T. (in the case of the
berths at enclosed docks, H.W.O.N.T.), and is
accommodation being provided for vessels 1,000
feet in length and of 100 feet beam ?
If not, to what extent is deepening being effected,
and for vessels of what dimensions (length,
draught, and beam at that draught) is accom–
modation being provided or in contemplation ?
(1) 150 ft.
(2) 7 „
(1) 150 ft.
(2) 7 „
(a) Uft.
(b) H .,
(2) 1* -•
(a) 7 ft. at end of jetty
50 ft. but the depth of water referred to in
question 4 exists only at end of jetty
(a) length "60 ft., draught 6 ft., beam 20 ft.
(a) N o
(c) N o