This Packhorse bridge lies over the River Ebble, and is grade 2 listed for its architectural and historic interest. It is medieval in origin and was widened around the 19th Century in brick. It is a small, narrow 3 span bridge with depressed arch-rings with double chamfered arch rings and weathered buttresses on the downstream (east) side. The bridge was widened by 6 inches in brick on the upstream (west) side with depressed 2 centered arches.
The coordinates will take you to a noticeboard that sets out the penalty for dumping rubbish, ashes, stones or any other matter whatsoever....!
The penalty is £AB
Use the following formula to work out the final coordintates:
N 51 02.A (A+1) (A+A)
W001 51.B (B+1) ((A*3)+B)

The Little Bridges series was started by Stanthews in 2009 to highlight small footbridges in remote parts of Wiltshire. Since then the series has been expanded by others all over the country and starting to spread fast, Damian from Winter Foxes has created and updates a list of cachers who has found 10 or more little bridges and can be found here, if you would like to add to the series, please contact Stan on stanthews@aol.com and he will give you a number for your bridge, to qualify, the bridge must be a foot bridge too small for vehicles, please make sure your title exactly matches “Little Bridges # xx then name” including spaces so it will get picked up and added to Damian’s list.
You are looking for a micro sized bison tube
Happy Hunting!