21.
brkmanship in all the bridges and culverts were good and,
response to a written enquiry as to whether he had "been
ahle in any case to discover any defective materials or
.", the Chief Resident Engineer replied
workmanship
R
1
that "the settlement is in no way due to defective material
We may here state that, as
in the bridges .............
the result of our inspection, we agree with the Chief
Resident Engineer and we now subait the following report
n the several bridges and culverts.
4. This is one of the main bridges, crossing an impor-1 ant public road at a considerable angle with a skew-span
or 72-1/2 feet and two side openings of 10 feet span. The
foundations were started in September 1907 and the plers
and abutments are now about 12 feet above ground level.
From records furnished by the Chief Resident Engineer,
e find that settlement, has occured in the south abutment
p to which the enbankzent extends, to the extent of from
1-1/2" to 3" and we also find that there has been a backward
tilting movement of about 1-3/4". Cracks have developed ia
this abutment. The other abutment and the two piers have
bettled to a less extent but movement is still taking plaće
and is likely to be considerably increased when the bank
beaches the north side of the bridge.
The materials and workmanship are good and we are of
opinion that no blame for the existing state of affairs
Can be attached to the Contractors, Messrs Leigh & Orange,
ho have carried out the whole of the work. The settlement
al cracks are due to the inadequacy of the foundations,
aving regard to the nature of the underlying foundation,,
hion, to a considerable depth, consists of fine alluvial
deposit interspersed with layers of sand and charged with
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