During the half-year ending June 30, 40 milts of public roads have been dug up for various mains and enables and the sewerage" system 32 miles of this total have been vated by the Electricity Dement and the various Public Utility Companies, and the remaining 8 miles by the Department chiefly in connexion with the sewerage scheme. The travelling] pi public has been put to a greater aniount of inconvenience than ever before by roads "wp," and there has been still more inconvenience suffered by occupiers of premises abutting on to these various road The sewerage work is, of a ¢, much more formidable than other trench work by reason of the greater depth, necessitating™ close timbering, at which. the pipes hare to be laid, whilst constant difficulties are encountered—by subsoil water and by leaks from toe old brick drains which District roads. It is by no in many of the Central
means an easy matter to steer clear of all the other underground works and at the same time maintain the gradients in the pipes upon which the calculations for discharge capacities are based. Every section of new sewer is' subject to a static water test before the trench is filled in, but this test cannot be applied before the cement joints have set and developed a strength of 100- Ibs. per Square inch. Should important defects be revealed, the work is put back until the repairs are made and a repeated and satisfactory test applied. As has been stated before, the sewerage scheme has come at a very late date in the development of the Settlement, and the difficulties and inconvenience are thus enormously increased. Traffic growth has outstripped road widening progress, and underground works- have steadily increased. The Electricity
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