When I was a youngster the bridges around here used to be grey.
Some years back a bright spark in the council decided in their infinite wisdom to have them all painted vivid blue, this caused quite a stir at the time with the local residents all along the old railway route! Some, like nearby SteadfastBridge were then painted a more sedate green to appease the outraged locals.
A busy road and bus stop nearby so there are muggles galore here, stealth is required.
GZ is wheelchair accessible but help will be required to retrieve the cache.