• Thanks, interesting about the two ponds in London that are included:

    'Carshalton pond has a ford type feature. It is situated in the London Borough of Sutton and is just off the High Street opposite the Greyhound public house. There is a chain across one end of it so it is clearly not now intended for use. As there is a perfectly good road bridge crossing the pond it is difficult to see why there should be a ford in this particular position. However, years ago it was provided for horse drawn wagons. Firstly to give the horse or horses a drink, and secondly, in hot, dry weather, to wet the wheels so that the wood expanded to make a tight fit with the steel tyres. The depth was between about 30cm and 50cm.'


    'It is in the London Borough of Camden and on one of the highest parts of Hampstead Heath. Like Mitcham and Carshalton, it appears to have no real fording purpose. The water is in the form of a triangular pond with brick sides and a concrete bottom. The depth was 30 to 45cm. when photographed. Along each of its three sides there is a road, so there seems to be no need to go through the water, but the entry and exit slopes are clearly seen. My guess is that its purpose was to give horses a drink. Whichever way one approaches the pond the road is up hill to a greater or lesser extent, so the horses would have been thirsty after their exertions. In dry weather it would also help the wooden wheels to grip the steel tyres.'

    Obviously not fords and strictly a bit pointless to include them, but interesting all the same.

    http://www.wetroads.co.uk/greaterlondon.htm

About