|
Following the financial success of the Bridgewater Canal which
took coal to Manchester, its engineer was invited to survey a route
for an artificial waterway be-tween the Black Country mines and
Birmingham. So James Brindley, self-taught genius, was to be seen
in the Spring of 1767, riding over heath and Park, making his 'occi-lar
survey' of possible routes : his proposed line was approved, and
the enabling Act was passed a year later.
The immediate attraction of the canal was the cheap-ening of coal
and iron in Birmingham, because transport was the chief item in
their cost :a single horse pulling thirty tons on water would replace
up to 300 packhorses. In addition, an extension of the canal to
link up with Brindley's Staffs & Worcs. Canal at Autherley would
give Birmingham access by water to the ports via the 'Silver Cross'
: this was Brindley's grand design for canals which would link the
estuaries of Thames, Severn, Mersey, and Humber.
The first boat-load of Wednesbury coal reached a temporary terminus
near the modern 'Longboat' Inn in November 1769, amid great and
justified rejoicing. Two termini were open three years later, one
off Newhall Street for timber and merchan-dise, the other off Broad
Street for coal. The company offices, looking like an overgrown
tollhouse, were on Suffolk Street opposite Paradise Street. The
canal crossed the Birmingham ridge in a cutting, then turned westward.
To maintain the 453-foot level as far as Smethwick, Brindley was
obliged to take a most circuit-ous route because of the Hockley
Brook tributaries which crossed the direct line. He made loops towards
the heads of the Newhall, Ladywood, Winson Green, and Shireland
Brooks, notably a ¾-mile hairpin along the sides of the Ladywood
Brook valley. Water for the canal was taken from each of these streams.
At Merry Hill, Smethwick, Brindley first planned a tunnel but construction
dif-ficulties obliged him to take the canal over the high ground.
A cutting reduced the summit level from 520 feet to 491 feet, and
this was reached by six narrow locks on each side.
In 1772 the extension to Autherley or Aldersley was opened, giving
Birmingham water access to Liverpool and Bristol. By 1790 the 'Cross'
was complete and there were waterways to London and the Humber.
The routes to Severn and Thames were in direct, and three other
canals later provided shorter ones. The Worcester Canal was begun
in 1791. Its northern reaches were soon in use, but the whole was
not usable until 24 years later. It joined the Birmingham Canal
at the pool just short of the coal wharves (Gas Street Basin), but
there was no water junction.
Cargoes had to be transhipped across 'Worcester Bar', a narrow
strip of land between the two basins, and tolls were levied. A level
lock permitting loaded boats to pass from one canal to the other
was not made until 1815. The bar survives, though the lock was removed
some years ago.
28.1. Map 9
The Old Wharves were infilled in 1926. Lord Calthorpe, owner of
Edgbaston, was loath to have the canal crossing his rural estate,
and permitted it only on condition that it went in a cutting without
access, and that no wharves, warehouses, or manufactories be built
thereby. There are still none today. A tunnel 105 yards long was
made under Church Road.
It seems strange now that canals should have been popular for passenger
travel, but they were able to provide fast and smooth service. Drawn
by teams of horses the half-length 'flyboats' moved at 12 mph and
had right of way. Any cargo-boat that failed to lower its tow-rope
so that the flyboat might pass had it cut by a scimitar set upright
in the latter's bows. After Telford's improvements the steam packet
'Euphrates' was to ply profitably between Birmingham and the Black
Country until the railways stole its custom.
The success of the 'cut' soon proved its inadequacy. As more and
more com-panies launched boats on it, and more and more branches
were made, particularly in the coal-mining zone, traffic grew to
and beyond capacity. Water supply was always insufficient : Birmingham's
small streams could cope with evaporation and seepage on the level,
but the constant drain from the short summit reach down six locks
on either side was more than Smethwick Great Reservoir (in the hollow
west of Victoria Park) could make good. Titford Pools, supplied
by streams from the Rowley Hills, were made about 1775, and water
flowed thence in a feeder to the summit.
In '78 a Boulton & Watt engine was installed at the foot of
Spon Lane lock flight to pump water back up to the summit, and a
year later another began work on the Birmingham side. By '87, so
great was the water shortage and the con-gestion of boats at the
locks that John Smeaton the mill and lighthouse designer was called
in to find a solution. His engineers made a new cut close beside
Brind-ley's summit and 12 feet below, then a second 6 feet lower,
the intermediate and original channels being infilled. Only three
locks were now needed to reach the lowered summit, and those on
the east side were duplicated on a short arm, thus doubling the
rate at which boats could climb or descend. Men and horses were
pro-vided to make their passage quicker.
By 1793 a hundred boats a day were going through the flights. Brindley's
winding shallow cut was steadily worsening. The single towpath had
never been proper-ly made or shored, and it had become a slippery
slope down which horses often slid into the water. Loops made the
journey unnecessarily long, and boats often grounded : to avoid
unloading it became the custom to carry half-loads or less. Two
particularly sharp bends at Sandy Turn near Sheepcote Street were
rounded in 1806, but there were no major improvements until Telford's
work in the 1820's, which will be described later..
|