Bridging objects together

I have a bunch of blocks I've created based on a large number of input positions. I'd like to be able to "smooth" them together so they can form something like a bridge (or like a line graph) that's even enough for me to place rigidbodies on top of it without them falling off or getting stuck on each other. Any ideas? The input values are generated in script dynamically so I can't just adjust them in the editor.