So I decided to map Hatch Road from border to border. This includes the areas that haven't been paved yet. Because Hatch Road is a community project, I figured I might as well mark points of interest you may find there. When travelling down the road, keep an eye out for some of these POIs as well as unlabeled builds, pixelart, and maybe 1 or 2 ultra wormholes.
If you wanna know where it'll be, the center of the road should be at y:-990.5. How that'll look on your coordinates display will depend on what display you use. It as y:-991 under F3's Block coordinates as well as on the minimaps JourneyMap, Xaero, and Voxelmap, but appears as y:-990 on GameShark's* hud.
This map is a pixel perfect export from JourneyMap. The map may not be 100% accurate as it is always being worked on. Not everything that's there is labeled. If you'd like something labeled, please let me know. I will update it when I can. Timestamp on Spoiler. It's a really tall image so get your scrolling apparatus ready. Click to open just the image.
Hatch Road as of October 19, 2019 at 11:36 PM PDT:
* Referring to the mod available on Pixelmon's page. GameShark and Pokéradar are not allowed on this server and as such GameShark should have functionality limited to compass, coordinates, and biome name. I do not condone cheating where many players are affected and I will not be held liable if you get banned for using a modified version of GameShark.