the ORIGINAL BRIDGE AT RIVER LETT
  Where was the original Bridge?  the view from this image of 1879 shows quite a substantial bridge  The road winds a fair distance to the south, away from the village and the Court house which is  at the far right at the top of the image.

The existing bridge on "the old Great Western Highway " prior to the deviation which runs to the current bridge  is quite a small bridge ash shown in the image of 2009 ,and entails quite a sharp turn, which coaches and bullocks would not have been able to make. So the question arises, where was the original River Lett Bridge? 

The Bridge at 1879

 

The Bridge of the old Great Western Highway...(2009)