Topaz Bridge is an achievement in Run 3.
After the Pastafarian revamp, this achievement got slightly harder. What you need to do is small jump and hold right at the start to land on a bridge tile, then jump again to further reinforce the bridge, and finally place yourself between two tiles (similar to the achievement Isn't That Cheating). This will make sure you have enough ways to save yourself with the bridge, giving you 2 platforms instead of 1. When the bridge disappears(not if, but when), then the joint between two tiles will save you.
If you are playing on mobile, you should have an easier time getting this achievement. Just hold right at the start until you reach the third tile, then stop. You should be able to reach the end.
This achievement was originally suggested by AK Cuber.