That is a beautiful bridge!!
We have much the same problems in the UK....the Government brought out a ruling called "The Right To Roam" now anyone can walk anywhere in your fields and they dont need permission. They are expected to not walk through crops (as if!) and to keep to the farmers walkways at the sides of fields, they are not expected to have their dogs loose but on leads (as if!!) and to close gates (yes we have had the whole herd go walkabout) and not drop litter (I HATE plastic bags with a vengence!)....there are many that do respect the countryside, but the few with total disregard for another mans/womans land spoil it and create even more work for farmers......I do not begrudge anyone enjoying the countryside, but boy do I wish they would keep to the lanes (of which there are many and lovely) and stay off the land itself.....why take a shortcut and walk through a field of wheat...etc trampling it.....gets me mad!!
Once again the Government is an a$$......The Right to Roam....piffle and poppycock....