I found a few pictures of a "covered" bridge that I built about 15 years ago - - - the property has changed hands and the current owner took the roll up doors off both ends.
The owner I built it for wanted the undercarrage left on so that if a government inspector complained we could hook a chain to it and remove it easily.
This was a 48' trailer - - - we put trusses on it and sided it with T 111 siding to make it look like an old bridge from a distance.
The original owner would fold in his mirrors and drive his pickup thru, a small tractor with a round bale is no problem at all.
These trailers can often be purchased very cheaply and can last for decades with a little care.
The owner I built it for wanted the undercarrage left on so that if a government inspector complained we could hook a chain to it and remove it easily.

This was a 48' trailer - - - we put trusses on it and sided it with T 111 siding to make it look like an old bridge from a distance.


The original owner would fold in his mirrors and drive his pickup thru, a small tractor with a round bale is no problem at all.
These trailers can often be purchased very cheaply and can last for decades with a little care.