The Oxford Canal is a 78 mile (130 km) long narrow canal in central England linking Oxford with Coventry via Banbury and Rugby. It connects with the River Thames at Oxford, to the Grand Union Canal at the villages of Braunston and Napton-on-the-Hill, and to the Coventry Canal at Hawkesbury Junction in Bedworth just north of Coventry.
The route between Coventry and Rugby is on a level with no locks, apart from the stop lock at the junction. Much of this section of the canal was straightened out in the 1820s, and remains of the original less direct route can still be seen in places.
The canal winds through the northern part of Rugby passing through the 250 metre long Newbold Tunnel, and then reaches a set of three locks at Hillmorton just east of Rugby. In the churchyard in Newbold-on-Avon remains can be seen of the original tunnel dating from the 1770s.
South of Rugby, the canal passes through rural scenery and doubles back on itself for several miles until it heads southwards again passing for a short distance into Northamptonshire towards Braunston.
At Braunston the Oxford connects with the Grand Junction section of the Grand Union Canal and heads west. Grand Union traffic shares a five-mile stretch of the Oxford Canal until they diverge at Napton junction, where the Oxford turns south towards Oxford and the Warwick and Napton section of the Grand Union turns north-west towards Birmingham.
The Grand Junction and Oxford canal companies were bitter rivals. When Parliament considered the Act of Parliament for the building of the Grand Junction, the Oxford Canal successfully petitioned to make the Grand Junction pay "bar tolls" to the Oxford Canal to compensate for the loss of traffic south of Napton.
Traffic from Birmingham had to use five miles of the Oxford Canal to get from Braunston to join the Grand Junction at Napton. The Oxford Canal exploited this by charging high tolls for Grand Junction traffic on this short section.
After winding round Napton Hill, the canal ascends the Napton flight of nine locks to a summit level. After passing an old wharf and a pub at Fenny Compton, the canal enters a long cutting which, until it was opened out in the nineteenth century, was a tunnel. This section is still referred to as 'tunnel straight' or the Fenny Compton Tunnel. The canal then reaches the Claydon flight of locks and descends into the valley of the River Cherwell at Cropredy. It follows the river valley from here to Oxford via Banbury, descending through a series of locks.
The section south of Napton junction was never straightened and the summit level is one of the most twisting sections of canal in England. It winds for 11 miles between two points which are under five miles apart. This is the "eleven-mile pound" mentioned in Tom Rolt's famous Narrow Boat.
At Oxford, the canal has two connections to the River Thames. The first is three miles north of the city where Dukes Cut leads to King's Lock; the second is a few hundred metres from the city centre below Isis Lock (known to boatmen as 'Louse Lock') through Sheepwash Channel. This leads to an unusual river crossroads at the Thames called "Four Rivers" above Osney Lock.
Three hundred metres below Isis Lock the Oxford Canal ends abruptly at Hythe Bridge Street near to the current Hythe Bridge over the Castle Mill Stream, a backwater of the River Thames that runs parallel to the Oxford Canal for its southernmost part. The canal used to continue through a bridge under Hythe Bridge Street to a turning basin and goods wharf south of Hythe Bridge Street. It then continued via a bridge under Worcester Street to end in a coal wharf beside New Road. In 1951 the basin and wharves were filled in and Nuffield College now stands on part of the site (see below).
In 1769 an Act of Parliament authorising the Oxford Canal was passed, having been promoted in Parliament by Sir Roger Newdigate MP, who chaired the canal company. The intention was to link the industrial English Midlands to London via the River Thames. Construction began shortly after near Coventry.
Surveying of the route and initial construction were originally supervised by the celebrated engineer James Brindley, assisted by Samuel Simcock who was also Brindley's brother-in-law. Brindley died in 1772 but Simcock took over and completed the canal. By 1774 the canal had reached Napton, but the company was already running out of money.
In 1775, a second Act was passed allowing the company to raise more funds. Construction soon started again and by 1778 the canal had reached Banbury. Financial problems meant that work on the final stretch to Oxford did not begin until 1786.
The stretch of the canal from Banbury to Oxford was built as cheaply as possible. Many economy measures were used. Wherever possible, wooden lift or swing bridges were built instead of expensive brick ones. Deep locks were used wherever possible, with single gates at both ends instead of double gates.
A stretch of the River Cherwell at Shipton-on-Cherwell was incorporated into the canal. This reduced construction costs, but the behaviour of the river makes the canal more difficult to use. This was a false economy and its adverse effects continue to be felt to this day.
The Oxford Canal reached the outskirts of Oxford in 1789, when a coal wharf was opened at Heyfield Hutts, now the site of Heyfield Road. The final section into central Oxford was ceremonially opened on 1 January 1790.
A much more direct route between London and the Midlands, the Grand Junction Canal, was completed in 1805. Much of the London-bound traffic switched to this faster route, as it avoided the passage of the River Thames which still had many flash locks. This greatly reduced Oxford Canal traffic south of Napton. However, the short section between Braunston and Napton became the link between the Warwick and Napton Canal and the Grand Junction Canal, making it part of the busy direct route between Birmingham and London.
The Oxford Canal was originally built as a contour canal, meaning that it twisted around hills to minimise vertical deviations from a level contour. However, with one eye on the developing railway network, in the 1820s the northern section of the canal between Braunston and Hawkesbury Junction was straightened out to reduce navigation time. This work reduced the distance by 20 miles. The section south of Napton was never straightened.
The northern section of the Oxford Canal between Coventry, Braunston and Napton remained an important trunk route, and remained extremely busy with freight traffic until the 1960s. The staple traffic was coal from the Warwickshire and Leicestershire coalfields to London via the Grand Union Canal. However the southern section from Napton to Oxford became something of a backwater, and carried mostly local traffic.
Many Oxford Canal boatmen and women favoured horse traction long after those on other canals had changed their narrowboats to diesel power. One narrowboat carrying coal on the Oxford Canal was drawn by a mule until 1958 and was the last horse-drawn freight narrowboat in Great Britain. This boat is preserved at the Boat Museum in Ellesmere Port
The Oxford Canal remained profitable until the mid-1950s, paying a dividend right up until nationalisation. As with most of Britain's narrow canal system, the Oxford Canal suffered from a rapid decline in freight traffic after the Second World War. By the mid-1950s very few narrowboats traded south of Napton.
The northern section from Napton to Coventry remained well-used by commercial traffic until the 1960s. The southern section was at one point being threatened with closure. However during the 1960s pleasure boating grew in popularity and replaced the old trading boats to ensure the canal's survival to this day. In the summer it is one of the most crowded canals on the network.
The towpath of the canal, with a 5.5 mile extension from Hawkesbury Junction to Coventry on the towpath of the Coventry Canal, forms the 132 km/85.5 mile Oxford Canal Walk. The 10 mile stretch from Oxford to Kirtlington, where the Oxfordshire Way meets the canal, is also part of European walking route E2.
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