Oh no, my estimates were really in favor of the parent's comparison. That $600k is a lowest-bidder minimum, expecting to redo in a month when it fails. I'd be

Oh no, my estimates were really in favor of the parent's comparison. That $600k is a lowest-bidder minimum, expecting to redo in a month when it fails. I'd be interested to know more about the breakdown, and I'd bet at least some municipalities are required to share it. A well trained road crew is likely pretty expensive, and as others noted, there's a lot more to a road than a driveway. Most driveways I've seen are largely cement planks, whereas a road is layers of differing materials to ensure frequent use doesn't destroy it too quickly. As for bridges. Eugh. I dunno. Those things are often crazy expensive. I wouldn't be surprised though, since that bridge is rather large and suffers a lot more wear and tear than NASA. I mean, they just need to punch a few one-time use rockets into space, but that bridge has to deal with thousands of semis. Space is a nasty place, but I'm betting thousands of trucks barreling over is harder to deal with year in and out.