«Previous page (112)

Next page (114)»

Document 35, p 9

for Sir Walter and others, and some in the Bridges way, and was also at that
time Surveyor for the Bridges of the County of Northumberland and still
the further to secure their care and Industry in this undertaking he had
them bound to him as undertakers for the sum for which they contracted
with him, to uphold their work for the Term in which he stood engaged to
the County: But as a demonstration, that shows how well he was satisfied
that the care and skill of the undertakers was fully and properly executed
he after the accident and after a full examination gave them up the Bond they
they just had entered into with him, contenting himself to pay the penalty in which
he stood engaged to the County.
And now as it will throw considerable light upon what I have to say
further upon the subject, it will not be lost time to explain the mode of found-
-ing adopted and put in practice by Mr Gott; as it appeared to Mr Smeaton
by ocular inspection and who at the time was acquainted with the under-
-takers, but more particularly and previously with Mr Gott.
Having constructed large and broad Coffer Dams of Earth to fence of the water
by help of chain pumps; they sunk the foundation pitt about 3 feet into the
Gravel, then they drove Piles over the whole Area of the intended foundation
of each pillar from 10 to 12 feet long and from 10 to 12 inches diameter in the
heads, and tapering according to the natural Taper of the Timber proper for
driving into Gravel of considerable resistance. The Heads being cut to a
Levell, the whole was covered by a platform made of whole (that is 12 inches)
Riga Balks, rabbetted or halved into each other, so that each could not
subside without its neighbour going with it, and upon this Platform the
Pillars were respectively built.
Mr Smeaton has reason to believe (tho’ he never happened to be there
when any Piles were driving) that the undertakers finding their Piles go
into the ground, more easily than they expected, and that the upper part the
hardest, did not, in all the Pillars, make the excavation of the foundation
Pitt quite so deep as above mentioned; but yet all founded below the Bed
9 of

Note: Mr Smeaton's Memorial concerning Hexham Bridge, p 9

Abbreviations are underlined like this Wm. and the expansion may be seen by moving the cursor over it.

An entry outlined like this has a note which may be seen by hovering over it.

Transcribed by CTW and KS