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.
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.