DIVERSION WALL.

Gisborne Times, Volume LXV, Issue 10320, 1 February 1927, Page 5

DIVERSION WALL.

PROTECTION to piling. .<god iii usi” “For what purposes were the fas- • mattresses covered with rubble C lnred at the toe of the piling in the P*f o » asked Mr C. E. Armstrong at 2e Harbor Board meeting yoster da ';> or protection to the foot of the ml” replied the Engineer. •‘Rut I understood that the piles driven into the papa. What is It; use of the fascines? They will th t i time and the boulders will bo lolling around at the bottom of the rthe Engineer explained that the I n, into which the piles had been him. was so hard that the toes of piles could not he driven in .ar lUl !rh and a cement bed had to be down. On the western side, howP‘ ti„. papa was a clay substance 6 V fascine mattresses with rubble en laid down for, the protechil of the foot of the piles, and prevent sand from getting through La behind w .e did not anticipate U L-mneir- rany trouble with the W>’ anticipated they odd remain m position, r ‘I hope they will,” said Mr Armt n , r >‘Jt is a very light protcC'on for mini". When you build a bridge ~n (lon 7 t expect to put mattresses v . you expect each pile to he self contained. Don’t you think," continued Mr, Armstrong, “it is neces- . that concrete blocks should he Liced at the end of the diversion Lll which was damaged by the sea ‘ e time ago?” He agreed that the fasciM and stones piled on the ,j 'hehmd the wall were of use tl, prevent the sand blowing away. The Engineer: The fascines and -tones on the sand at the back of the wall are not to prevent it hlow•n„ n wa.v, but to prevent erosion. So f ” ‘. vs the return was concerned, he aoTcccl that it might have been advisable to put down concrete blocks Li i n anv case when the breakvater was extended out the return Laid not he subjected to battering bv the seas. . ‘j[ r Armstrong: “If fascines and stories are all the protection from er--o>i„n then God help us, especially i n the water is coming over the top of the wall.” The Engineer said he did not anticipate any trouble with the measures taken for the protection of the wall.