Flecknoe bridge (weak)

We have arrived at Flecknoe which is 41 miles in. Currently an hour and twenty mins ahead of schedule. However, the heat is taking its toll and these desperate times call for pot noodles. Team Webb are firing up the stove as I type. The rest of the field is doing well- Chris is about 10th at the moment. I think the next few check points are going to be a hard slog because there are quite a few busy pubs and most runners are dying for a drink of something stronger than power drinks! Does anybody know what 10mgw means by the way? It says that on a weak bridge sign and I cant understand why. Hope you like the photos