It would be great to have underground pipe balancers added to the mod. As it is allready possible to rise the balancers, why not bury them.

This is working now if you place the pipe after the road is placed. When i place road over the underground pipe it will fail. Guess thats the other mod failing and you cant fix that. Thnx for the update and the fast response. Keep up the good work.

failing to make underground pipes under the Betterlife Roads and Signs mod, need to cross the road at height

I would suggest to add tunnels. It could even be tiered as for longer tunnels you could need to research TBM and even make one at the vehicle depot.