The Life of Thomas Telford, Civil Engineer: With an Introductory History of Roads and Travelling in Great BritainSmiles, Samuel
History
The Life of Thomas Telford, Civil Engineer: With an Introductory History of Roads and Travelling in Great Britain
Smiles, Samuel
Civil engineers -- Great Britain -- Biography; Roads -- Great Britain; Telford, Thomas, 1757-1834
"There are now two other propositions under consideration. One is
to form another system of docks at Wapping, and the other to take
down London Bridge, rebuild it of such dimensions as to admit of
ships of 200 tons passing under it, and form a new pool for ships
of such burden between London and Blackfriars Bridges, with a set
of regular wharves on each side of the river. This is with the view
of saving lighterage and plunderage, and bringing the great mass of
commerce so much nearer to the heart of the City. This last part of
the plan has been taken up in a great measure from some statements
I made while in London last year, and I have been called before the
Committee to explain. I had previously prepared a set of plans and
estimates for the purpose of showing how the idea might be carried
out; and thus a considerable degree of interest has been excited on
the subject. It is as yet, however, very uncertain how far the
plans will be carried out. It is certainly a matter of great
national importance to render the Port of London as perfect as
possible."*[7]
Later in the same year he writes that his plans and propositions
have been approved and recommended to be carried out, and he
expects to have the execution of them. "If they will provide the
ways and means," says he, "and give me elbow-room, I see my way as
plainly as mending the brig at the auld burn." In November, 1801,
he states that his view of London Bridge, as proposed by him, has
been published, and much admired. On the l4th of April, 1802, he
writes, "I have got into mighty favour with the Royal folks. I have
received notes written by order of the King, the Prince of Wales,
Duke of York, and Duke of Kent, about the bridge print, and in
future it is to be dedicated to the King."
The bridge in question was one of the boldest of Telford's designs.
He proposed by his one arch to provide a clear headway of 65 feet
above high water. The arch was to consist of seven cast iron ribs,
in segments as large as possible, and they were to be connected by
diagonal cross-bracing, disposed in such a manner that any part of
the ribs and braces could be taken out and replaced without injury
to the stability of the bridge or interruption to the traffic over it.
The roadway was to be 90 feet wide at the abutments and 45 feet
in the centre; the width of the arch being gradually contracted
towards the crown in order to lighten the weight of the structure.
The bridge was to contain 6500 tons of iron, and the cost of the
whole was to be 262,289L.
[Image] Telford's proposed One-arched Bridge over the Thames.
Public-domain text, read in full here on John Shaqi.
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