The Wey and Arun Canal is a partially open, 23-mile-long (37 km) canal in the southeast of England. It runs southwards from the River Wey at Gunsmouth in Shalford, Surrey to the River Arun at Pallingham, in West Sussex. The canal comprises parts of two separate undertakings – the northern part of the Arun Navigation, opened in 1787 between Pallingham and Newbridge Wharf, and the Wey and Arun Junction Canal, opened in 1816, which connected the Arun at Newbridge to the Godalming Navigation near Shalford, south of Guildford. The Arun Navigation was built with three locks and one turf-sided flood lock. The Junction Canal was built with 23 locks

Passing through a rural landscape, there was little freight traffic to justify its continued existence – the canal was officially abandoned in 1871. Without maintenance, the canal gradually became derelict over much of its length.

However, since 1970, restoration by The Wey & Arun Canal Trust has led to several miles being restored to the standard navigable by narrowboats and small tour barges. Work is continuing, with the ultimate aim of reopening the entire canal to navigation.

v t e Wey and Arun Canal
Legend
Wey and Godalming Gunsmouth ~ Stonebridge ........Island ~ ....Moorings  A281  Embankment & Culvert Stone Bridge 23 Stonebridge Lock Hunt Park 22A (proposed) Tanglewood Lock Tannery Lane bridge 22 Tanyard Lock Gosden Aqueduct Station Road Bridge Stantons Wharf 21 Bramley Lock 20 Linersh Wood (Wesby) Lock 19 Park (Private Bridge) Lock Watered section Birtley Lift Bridge 2 Birtley overflow weir Birtley Lift Bridge 1 Fanes Bridge (Site of) 18 Fanesbridge Lock Hazlewood Bridge Cranleigh Waters Rushett Farm Bridge Run Common Bridge Downs Link Path (dismantled railway) Whipley Manor Swing Bridge Palmers Cross Bridge (site of) 17 Rowly Lock Summit Pound Rye Bridge (site of)  B2130  Elmbridge Road 16a (proposed) Elmbridge Lock Utworth bridge (Site of) Mill Farm Bridge (causeway) Fast Bridge  A281  bridge (causeway) Farnhurst Bridge Compasses Bridge Dunsfold Aerodrome Simmonds Bridge (site of) Thriscott Slipway New route 2020 Tickners Heath (causeway)/ New Bridge - Tickners Crossing New Bridge - Sidney Wood Access (proposed) .... Bridge Sidney Wood Possible new route 16 Sidney Wood Lock .... Bridge (Possibly Knighton's) 15 Lock House Lock Possible new tunnel 13–16 possible new locks 14 Sidney Wood Lock 13 High Bridge Lock Rosemary Lane (causeway) New Bridge (proposed) 12 Westland Copse Lock 11 Westland Copse Lock 10 Bonfire Hanger Lock 9 Gennets Wood Lock River Lox 8 Gennets Bridge Lock Gennets Bridge "Surrey-Sussex Border Path" Restored (navigable) section 7 Southland Lock 6 Devil's Hole Lock 5a Loxwood Lock  B2133  Loxwood bridge 5 Brewhurst Lock Brewhurst Bridge 4 Baldwin's Knob (Stubb's) Lock Barnsill Bridge Drungewick Spill weir Drungewick Slipways Aqueduct over River Lox Drungewick Lane bridge 3 Drungewick Lock Partially watered section River Arun Hope Bridge Bignor Bridge 2 Malham Lock Loves Bridge Rowner overflow weir 1 Rowner Lock Northlands Lift Bridge  A272  bridge Newbridge Wharf Arun Navigation - upper section Guildenhurst Bridge (Site of) Orfold Bridge (Site of) Orfold Aqueduct Lordings Lock Orfold Flood Lock Lee Place (was Harsfold) Bridge Lee Place overflow weir Haybarn Swing Bridge Lee Farm Bridge (Causeway) Lee Farm / Middle Lock New Toat Bridge New Toat overflow weir Old Toat Bridge Cooks overflow weir Cooks Bridge Pallingham North overflow weir Pallingham Quay Bridge Pallingham Quays Proposed new route Pallingham lock (2 rise staircase) River Arun (tidal)  A283  Stopham Bridge Rother Navigation Arun Navigation - lower section Hardham tidal lock River Rother Tunnel lock Hardham Tunnel Coldwaltham tidal lock  A283  Houghton Bridge Arundel Portsmouth and Arundel Canal River Arun (tidal) English Channel, Littlehampton

The River Arun was used in an unimproved condition for centuries, but work was carried out on the river itself and the port of Arundel in the 16th century, which allowed boats to reach Pallingham Quay against the north of the parish of Pulborough by 1575.^[1][2] An Act of Parliament received the Royal Assent on 13 May 1785, entitled "An Act for amending and improving the Navigation of the River Arun, from Houghton Bridge, in the parish of Houghton, in the county of Sussex, to Pallenham Wharf, in the parish of Wisborough Green, in the said county; and for continuing and extending the Navigation of the said River Arun, from the said Wharf, called Pallenham Wharf, to a certain Bridge, called New Bridge, situate in the parishes of Pulborough and Wisborough Green, in the said county of Sussex".^[3]

Houghton Bridge was the absolute tidal limit; Newbridge lay much closer south-west of foundry-rich Billingshurst than to Pulborough. The route involved a new artificial cut of 4.5 miles (7.2 km) alongside the river, crossing the river by an aqueduct^[4] on three strong brick arches at Lordings Lock before its north end.

Completed in 1787, an undershot waterwheel of a design unique in British waterways was built into the aqueduct. Driven by the flow of the river this had scoops on the back of the blades which raised some water into the canal.

A shortcut cut was added in 1790 from Coldwaltham to Stopham, including a 375-yard (343 m) tunnel under Hardham Hill,^[5] which avoided the meander of the parish of Hardham (facing the south of Pulborough), saving 5 miles (8.0 km).^[6]

The route from Newbridge down to Houghton became 13 miles (21 km) with six locks.^[4] The river continues a further 15.5 miles (24.9 km) to the sea at Littlehampton.^[6]

The last barge to ascend between Pallingham to Newbridge was recorded in 1888. Hardham tunnel closed in 1889. The cuts were officially abandoned in 1896, but some traffic continued on the old by-river cuts into the 20th century, notably bricks from Harwoods Green below Pallingham and chalk from Houghton Bridge;^[7] most south coastal traffic was stopped in 1938 by a new, fixed bridge on the Havant to Brighton railway line at Ford.

The first scheme to link the Wey and the Arun was proposed in 1641. Headwaters of the rivers were 2 miles (3.2 km) apart, and a canal to bridge them down to a navigable upper reach was submitted as a bill to Parliament, but was dropped when it reached the committee stage. Another scheme, to tie in, additionally, the Adur and Mole was suggested in 1663, but was not pursued.^[8]

In 1810, the 3rd Earl of Egremont began to promote the idea of a canal to link the Wey and Arun, the case being they were separated by 15 miles (24 km). Part of the justification for this canal through these overwhelmingly rural counties, with few of the cargoes which made canals profitable, was to provide an inland route from London to Portsmouth and the south coast of England, an important consideration as England was at war with France and thus coastal shipping at risk of attack.

Josias Jessop (son of the more well known William Jessop) was appointed consulting engineer in 1811. It was his first job as an independent consulting engineer since he had established his reputation constructing Bristol Harbour.^[9] He made an estimate of £72,217 for construction of the canal, which he increased to £86,132 in May 1812, when he re-surveyed the route and part of it was changed. A survey was carried out in 1811 by Francis and Netlam Giles for an alternative, 37 miles (60 km) long, from the Croydon, Merstham and Godstone Railway at Merstham to Newbridge, via Three Bridges, Crawley and Horsham. A petition was presented to Parliament, but the scheme got no further.^[10]

An Act of Parliament received the Royal Assent on 19 April 1813, entitled "An Act for making and maintaining a navigable Canal, to unite the Rivers Wey and Arun, in the counties of Surrey and Sussex". This authorised the construction of the canal from the Godalming Navigation (an extension of the River Wey) near Shalford, south of Guildford to the northern terminus of the Arun Navigation at Newbridge.^[11] May Upton was appointed resident engineer in July, and work began. Jessop designed all the main structures, including aqueducts, bridges, locks and cottages for the lock-keepers. The canal was 18.5 miles (29.8 km) long, had 23 locks and was suitable for 30-ton barges. Construction was completed in September 1816, having cost £103,000.^[9]

By the time it was opened, however, the war with France was over and thus one of the key reasons for its construction was removed. As a result, it was never very prosperous, but did reasonably well. Its record maximum: 23,000 tons was carried in 1839. However, railway competition hit hard in 1865 with the opening of the Guildford and Horsham Railway, which was in much competition with the canal.^[12] There were also engineering problems with few sources of water to tap into, compounded by porous subsoils at summit level, which led to water shortages.

In 1867, some tourists cruised the canal whose trip was the subject of a book called The Thames to the Solent by Canal and Sea, which was published in 1868 by J. B. Dashwood,^[13] the same year in which an Act of Parliament authorised closure.^[14] The canal was offered for sale in 1870, but officially abandoned in 1871, with the land sold to many along its route, although the canal company was not wound up until 1910.^[12]

After a century of disuse, restoration began by The Wey & Arun Canal Trust.

Interest in the canal was sparked by the publication in 1965 of P.A.L. Vine's book London's Lost Route to the Sea. As a result, the Daily Telegraph weekend magazine carried a 5-page article about the canal.^[15] In 1968, a local group of enthusiasts became interested in the canal, and having carried out some research into its history, formed the Wey & Arun Canal Society in 1970, with a view to reopening it.^[16] The Society evolved into The Wey & Arun Canal Trust in 1973, a private company limited by guarantee with no share capital,^[17] the present custodians of the canal restoration. In 1990, the restoration was identified by the Inland Waterways Association's Restoration Committee as one of those where significant progress was being made, and which would benefit from the backing of the Association.^[18] The Waterway Recovery Group, which gave active support to restoration schemes, developed a strategy of "a guaranteed labour force for guaranteed work" in 1992, which ensured that local societies would have the funding and relevant planning permission in place before a group of volunteers arrived to carry out the work. The Wey and Arun Canal was one of three schemes where working parties were run in this way.^[19] The practical outworking of this approach was demonstrated in the following year, when a section of the canal at Billingshurst was cleared, and three accommodation bridges were rebuilt by a working party of 250 people, as part of a Waterway Recovery Group initiative called "Dig Deep".^[20]

The Trust has reached agreements with several landowners to allow restoration work to be undertaken over half the length of the 23-mile (37 km) canal. By 2009, twenty-four bridges had been reconstructed, eleven locks restored, two aqueducts re-instated, and several miles of canal bed cleared and dredged.^[21]

The Lordings Lock waterwheel was reconstructed by Winston Harwood during the first decade of the 21st century. In 2010 the main spindle of the wheel broke and the wheel was rebuilt to a more effective design.^[22]

Having completed a multimillion-pound B2133 road bridge-centred project (see below), restoration has continued northwards. Devil's Hole Lock (lock 6) had been partially destroyed by the Canadian army as part of a training exercise in 1942. It has been rebuilt and extended to take 72-foot (22 m) narrow boats. The lock was reopened on 17 April 2010, and the opening ceremony was carried out by Colonel Paul Rutherford, the Senior Army Adviser to the Canadian High Commissioner.^[23] Southland Lock (lock 7) required significant rebuilding, as many of the original bricks were removed in the 1930s, to be re-used by a local religious order.^[24] The lock was reopened on 21 June 2014 by Simon Carter, a local landowner with land adjoining this section of the canal.^[25] Working parties have since concentrated on the building of Gennets Bridge Lock (lock 8), a major exercise requiring the construction of a new concrete shell, faced with locally made bricks, and a bridge for a bridleway^[26] as nothing was left of the original lock structure.

Southland Lock is the current northern limit of navigation on the restored section, some 3 miles (4.8 km) from Drungewick Lock (lock 3) in the south.^[26]

An isolated section of the canal at Birtley was officially reopened on 28 October 2023. This was achieved by replacing two causeways that had been built across the canal with twin lift bridges. The northern bridge was once the site of a swing bridge, but the southern causeway was a new crossing as there was never a bridge at that location prior to the canal closing.^[27]

A photo-history of the canal's restoration to date and the latest progress reports may be found on the Trust's website.

• Portsmouth and Arundel Canal - the two canals were intended to give secure inland navigation between London and the important naval base, HMNB Portsmouth