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Slough Basin

Accessible to all craft kept on the connected inland waterways

Silver Propeller Challenge



Visit Slough Basin on the Grand Union Canal, Slough Arm by boat or canoe.

Despite of the surprisingly rural nature of the canal, it is not often used that is why the arm has been chosen as a Silver Propeller Location. A photo of your boat at the end of the Slough Arm will be a good proof of your visit.

Complete our challenge by visiting 20 locations from our list, you will receive our exclusive plaque and goody bag.

History of the Grand Union Canal – Slough Arm

A branch from the Grand Junction Canal at Bulls Bridge to Slough was first proposed in 1878. However, altering the route slightly after a survey in 1879 moved the junction to Cowley Peachey. Later on, the canal opened in 1882 having required major earthworks at Iver. It is 5 miles long without locks and has 5 aqueducts. 


The canal transported bricks from the various Slough brickworks. Furtheremore, it also catalysed the establishment of various sand, brick and gravel wharfs along the line. The existing brickworks expanded their production and transported bricks to many parts of London. Traffic on the canal grew rapidly and reached a peak in 1905 when over 192,000 tons were carried. The Brick and Gravel trade continued throughout the 1920’s and 1930’s and also through the War Years but, by then, the clay and gravel deposits were becoming worked out. Traffic of waste from London to infill the redundant pits carried on for a while as did the delivery of timber to Slough Wharf. The last recorded commercial cargo took place in March 1960.

With no future seen for the canal, Slough council proposed filling it in for an access road to a new Industrial Estate. The Slough Canal Group, supported by the Slough Observer, vigorously campaigned to restore and re-open the canal in 1975. There have been several proposals to make a connection from the terminus to the River Thames as there is only 2 miles separating the two navigations.

Photo: Festival at Slough Arm on the Grand Union Canal by Lucy Smith.


Grand Union Canal – Slough Arm Notes

Grand Union Canal – Slough Arm Dimensions

The maximum size of boat that can navigate the Slough Arm is:-

  • Length: 72′ (21.95 m)
  • Beam: 14′ (4.26 m)
  • Draught: 3′ 4”(1.03 m)
  • Height: 7′ 7” (2.33 m)


It is possible to turn a full length boat at Slough Basin.

Canoeing & Boat Hire

Go by canoe on the Slough Arm with a CRT licence or British Canoeing membership.

Challenge Location

Slough Basin

Grand Union Canal – Slough Arm

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