The Railway Conquest of the WorldTalbot, Frederick Arthur Ambrose
History
The Railway Conquest of the World
Talbot, Frederick Arthur Ambrose
Railroad engineering -- History; Railroads -- History
When the builders were compelled to plunge boldly into the marsh they
were beset with difficulties innumerable. Mr. Flagler had realised
from the outset, after meditating upon the plans and reports of the
surveyors, that the only practicable means of seeing his scheme carried
to fruition was by means of direct labour under his own engineers,
instead of by contract. Consequently, he secured the services of the
most capable engineers available, while labour was recruited from all
sides. Fortunately, no difficulty was experienced in this direction,
because the offer of good wages, with everything found, was considered
by the workmen to be an equitable compensation for the risk of malaria.
The engineer-in-chief, the late J. O. Meredith, who died in harness
amid the scene of his labours, resorted to highly ingenious methods to
overcome the fever-ridden swamp. Not only did the conditions demand
that a heavy, solid earthen embankment should be built, with its level
well above the highest watermark, but that the ridge of earth should
be prevented from spreading at the base under the superimposed weight
of a heavy train, and from the insidious attacks of soaking water.
Owing to the absence of rock and gravel in the immediate vicinity,
it appeared as if the engineer would have to haul trainloads of
material for this purpose from long distances, and at great expense,
to be dumped into the unstable mass. But he decided otherwise. He
conceived a far more rapid, simple and inexpensive means of building
the embankment. Two large, square, shallow-draught dredgers were built,
with large grabs rising and falling from the upper end of a projecting
diagonal wooden girder or jib. These were towed to a point known as
Land’s End. Here, on either side of the strip of land forming the
right-of-way for the iron horse, and whereon the embankment was to be
raised, an excavation was made. Each cut was 30 inches deep and just
wide enough to float the vessel comfortably.
The grabs were then brought into play, and with each swing they
withdrew a huge mouthful of the waterlogged soil, swung it round, and
ejected it upon the grade. The grabs were heavy and powerful; their
teeth crunched through roots and decayed vegetable matter relentlessly.
It will be seen that, as a result, each dredger dug a canal for itself
as it advanced on either side of the grade, forming two parallel paths,
with a belt of dry land between. Now and again their advance was
disputed. Just below the water lurked a large rock which defied removal
by the terrible teeth, and yet projected too near the surface to enable
the dredger to float over.
Then the engineer gave another demonstration of his ingenuity. Instead
of wasting time in blasting away the rock, he threw a temporary dam
across the ditch behind the dredger, forming a kind of lock. Water
was pumped from the fellow ditch to raise the level of the water a
sufficient degree to enable the dredger to float over the obstruction.
Public-domain text, read in full here on John Shaqi.
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