How do I connect the piers and fishing area to the roads?

[3 Chainz]

It says they are not connected to the roads, but I can't do it when I try to build them.

[TheH1313]

Try putting a road down first, perpindicular/out to to the coast, then placing the building litterally on top of the road(As close as you can without the red warning). I found it can be tricky to get it to line up, but it will work.

[barrygreybeard]

I just laid a road out up to them, that worked.

[Mansen]

The "piers" connect to any road within a certain distance. If the pier is too far down the shore from the nearest road, it will complain.

Dragging a dirt road usually works for me.