Notice how there was basically no traffic on it. Not sure how sustainable it is over 50 years. The US did this 50 years ago. We made miles and miles and miles

Notice how there was basically no traffic on it. Not sure how sustainable it is over 50 years. The US did this 50 years ago. We made miles and miles and miles of highways. The the burbs did this 20 years ago. We build miles and miles of road to each and every house, even if the road gets 20 cars a day. We are starting to pay the price now, as the maintenance bills come due. The federal gov't paid for the building, but the local is responsible for most of the repair. We can't afford to maintain them. I do not know the lifespan of this bridge. 50, 75 years? At some point some repairs will be due, and it might cost a lot...