the
erie
hundred Con Moller/ (2-cylinder each 50tons)
that the roller would sink considerably below low water level, and its onward progress would be impeded, and rendered extremely difficult, if not impossible.
To illustrate this point I have had prepared the sections A and B shown on the accompanying drawing. Section A shows the wall as it is assumed it will be after the final settlement has taken place. Section B shews the footings as they are laid before the subsidence due to the incumbent weight of the wall and filling.
As the object of the steam roller is to effect the final subsidence of the rubble mound under favourable conditions. In some cases the settlement may be less than that assumed, but it is highly probable that over a considerable length of the wall it will be greatly exceeded.
Under these conditions the difficulties with which the roller would have to contend would probably prove insuperable.
I have further been impressed since writing my former report with the slow rate of progress made with the Praya Reclamations now in course.
1. In front of all. That is to the building of the wall, it follows that after the settlement due to the action of the rollers has taken place the road on which the roller has to travel will be 3 feet below low water level in S.W. monsoons, and about 5 feet below the same level in A. E. monsoons. But owing to the greatly varying conditions of the soft bottom the assumed subsidence can only be regarded as a mere approximation, or if you will, a conjecture based on experience of walls constructed under more favourable conditions.
2.
Length of wall When commenced. Contract dated Probable date of completion. 1385 feet 26. Nov. 1887 End of 1870. In front of Kennedy town 1487 feet In front of Wharf and Godown Co's. Wharf. 10th May 1894... 14th July, 1887 Total 2464 feet. June 1891On going carefully into the matter I have ascertained that the chief cause of delay...