Cotswold Canals film of Stroudwater Navigation, Ryeford 20th October 2015. They write:

Volunteers load ready mixed concrete into a 60 ton barge at Ryeford Coal pens. Tug “Goliath” pushes the load to the tail of Double Lock, Ryeford, where shuttering formers are used to construct a new retaining wall above the landing stage which is under construction. This saved a vast amount of man hours and effort, compared to using wheelbarrow loads to the construction site.  Swans, moorhen and ducks were oblivious to the craft movement during the day. The team of volunteers at this site are led by Alan Jones.

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Canal