1792 - 1891
1793
The 1791 Act for
the Worcester & Birmingham Canal prompted the Dudley Company to extend its
canal to Selly Oak, since it would have access to
1796
The stop lock, which kept the level of the Dudley
Canal 6 inches below that of the
1805
A tunnel was built from
1812
Thomas Brewin was appointed Superintendent Agent on 25th December, a post he held until becoming the Company?s Clerk in 1824. Brewin, a local colliery owner, had been a proprietor of the Company since at least 1805 and became a major shareholder. Though not an engineer, he was an astute businessman and was responsible for the success of the company during the latter part of its independent existence.
1836
Owing to continual problems along the original
1838 / 1839
The Limekiln Branch, from the Birmingham Canal to the fine bank of kilns in what is now the Black Country Museum, was built under the direction of the Trustees of the Dudley estates, held in trust from 1833 to 1845.
1841
Brewin introduced an ingenious arrangement near the western portal of Lapal Tunnel to speed up the passage of boats. This consisted of a second-hand steam engine coupled to a scoop wheel that lifted water past a stop gate. The gate was opened to assist boats from Selly Oak. Pumping was discontinued in October 1914, owing to the great age of the engine and a decline in traffic.
1846
The Dudley and Birmingham Canal Navigations companies
amalgamated. At the final committee meeting of the
1849
The British Association for the Advancement of
Science visited the
mines. The famous geologist Sir Roderick Murchison
gave a speech in Dark cavern with thousands of people present. He had
proposed a new geological period called the Silurian era that included the
limestone for which
1853
A record 41,000 boats (approximation but cannot be
substantiated) used the tunnel during this year. This made the Birmingham
Company realise that Dudley Tunnel was just too small to take the number of
boats that used it. So the company decided that, rather than
enlarge the tunnel, they would construct a new one
two miles away to the south, near the town of
1858
Netherton Tunnel, one of the improvements to the
The Two Locks Line, envisaged over 20 years earlier,
was built between Lodge Farm and Dudley Woodside., reducing the journey via
Blowers Green Junction by about 1? miles. At the same time Brewins tunnel was
opened up to form a cutting, exposing an important rock section that is a Site
of Special Scientific Interest. Coal Measure strata rest on older Silurian
rocks, through which dolerite, known locally as Rowley Rag, has been
intruded. A bridge carrying
1884
The southern section of Dudley Tunnel had been affected by mining subsidence throughout its existence and had been the cause of litigation between the canal company and colliery owners. About 200 yards were rebuilt to larger dimensions in that year. The bore then suddenly reduces to that of the 1792 tunnel and, since the Parkhead portal gives a false indication of the headroom in the tunnel, a gauge has been fitted.
1891
Blowers Green Pumphouse, the headquarters of the
Trust, was built to house the recirculating pump that replaced the earlier one
on the Grazebrook Arm. The new pump raised water from the Level Pond to the
Birmingham Level or Wolverhampton Level, or between the
The two locks at Blowers Green were rebuilt as one
deep lock a couple of years later. This is now the deepest lock on the
BCN.

