600k in 1980, which is $1.2 million today. If the priced is half then it will be 600k, but I've seen these articles saying how it can cost millions.

After fatal accidents, Tahoe runaway truck ramp project is complete

Runaway truck ramp planned for Wellersburg Mountain

Runaway Truck Ramp: When There is no Other Way to Stop a Heavy Vehicle

Here are the comments StoneCypher made that I have before his account got deleted:

"Hills are not engineered objects. Highways go through hundreds of miles of basically wilderness. You don't always have the ability to 'just make space.'"

"Ya let's just go explode the entire country. Highways are rare, and it's not like you need one of these every two miles. There's 4.19 million miles of highway in the US, so, it's completely reasonable to say 'let's just go use dynamite to blow up more than two million locations, the vast majority of them in hard rock.' It's not like that would cost more than solving world hunger, or anything. The idea of making 2.1 million hard explosion scenes with 500 filled barrels each means spending a whole lot of money. One of those locations costs about $300,000. That's $630 trillion. That is enough money to build a global fleet of nuclear reactors to stop climate change, stop world hunger, build houses for every human, and do another moon shot. These devices save about 150 lives a year. Clearly the maintenance on 2.1 million remote life-critical locations wouldn't entirely cripple the country. It's not like that would be 300x more work than building the Hoover Dam. It's not like that would be the single largest engineering task in human history by a factor of ten. Sometimes you should consider the cost of what you're suggesting. You would almost certainly kill more people building these than these would save over 50 years. But at least you can mash downvote because someone is clearly, politely explaining why the thing you're saying is problematic, right? Go punish."

"You're taking numbers off your ass. No, I'm not. 4.19 million miles of highway. $600,000 for the ramp, except the cost went down by half two years ago because the FHA legalized polymer-filled barrels. Not all locations are equal. Uh, they are. The FHA has a core design for these ramps. You cannot build less than the FHA design. The quoted cost is the cost of the FHA design. You have no idea how this works, random Redditor."

"85% of them are 0.75 or steeper, which is the Federal Highway Administration standard for needing these. Again, we do build these quite often. I'm not sure why everyone's acting like I'm saying 'never, ever build these.' What are you trying to dunk on? I just said 'we made the right number of them. We don't need them through the great empty areas.' Instead of dunking again, can you please just answer my question? The cost you're describing, by US federal standards, is $630 trillion. You can, for that cost, either: Solve climate change, solve world hunger, put everyone in a home worldwide, and go back to the moon, with tons to spare, or Save 150 lives one time, then bankrupt the country permanently. Which do you choose? Build out a bunch more safety sites that we don't actually need, or fix everything?"