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depoorly und ni Dean

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und te acuitanidi

1.

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i no

gilent ura free to ansad nidd rowendy Wilbang pada Igrove „for

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86 en ft To nie nhol fedbug

Lendunia Of Juos Teigunna

I Jus fience I poltergei w: to them sið að in as anoitalnost 253 alla neid durch of Isimo ed elbind

adolee ali Ina "pooo of Eruod can acorafiavbe unoine locsong

will always be a cause for grave anxiety. Having regard to the nature of the ground, I am unable to suggest any means of renlering secure the present foundations and I therefore recommend that the whole of the work already executed be taken down and that hardwood piles be driven extending down to the hard ground and supporting a framework of runners and cross bearers on which the foundations

would rest.

Bridge No. 7 The masonry of this bridge has been practically completed. The southern abutment and wing-walls have settled con- siderably and very unequally with the result that there are large cracks (about 13" and " respectively) in two places and a small

crack in another. The largest crack is near the end of the western

wing-wall, which the Chief Resident Engineer informed me rested

either upon a rock or a large boulder. The next is at the junction

of the western wing-wall with the abutent and the thirl, which is

comparatively small crack, is near the mildle of the abutment. The

cracks liminish greatly towards the top of the walls but this is

probably partly accounted for by the fact that the upper part of the

Jasonry was built considerably later than the lower part and partly

by the manner in which settberent has occured. I had a plumb line

tried at the two eals of the abutment with the result that at its

western end it was found to overhang 3 inches and at its eastern end

2 inches.

CR

The northern abutment and wing-walls have settled more equally,

- I was informed that the maximum settlegent was 9 inches, - and only

one small crack has developed so far. The overhang in this case was

about 1 inches.

The foundations of both abutments are, I understand, similar

to those for Bridge No. 4.

A trench had been opened a little to the north of Bridge No. 7

for the construction of a culvert underneath the future embankment

and the pricker was tried in bhis. The result was precisely similar

Page 270Page 271

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