Bridge to Desert is avaliable? becaus i already finish all the tasks and the bridge dont apear just the beggin.

You need to make the bridge pieces.  These include the cables and tower as well as the lights.

I did my part on the bridge with the clay Higgins took the other two; if he not done he is way over due the twenty day mark was last year in game.

I am three months in with no progress on the bridge just two guys hammering away at a dirt ground is it suppose to take multiple year?

Or over five mouths in this case?