Mohne Dam in Watford

The Mohne Dam

On a recent assignment at the Building Research Establishment I discovered that there was a concrete scaled down version of the Mohne Dam, famous as one of the targets of the Damdusters raid by 617 squadron during the second world war. Apparently Barnes Wallis had it built in order to test explosives to be used in the raid. Some damage can be seen. A result of those tests? It was surprising to find it still in existence after so long.