Summary

Simple H0-scale Model Railroad Bridge Pillar - adjustable

Each Pillar consists of 2 parts : Top and Bottom

Top is either flat or angled/slanted (2 degr.)
Bottom part height adjustable (in Sketchup)

Use M2 bolts or 2 mm nail to keep Top and Bottom aligned while glue dries
M2 holes in top part could be used to fix tracks to the pillars.

Tip : when adjusting the height of the bottom part, you may need to
minimize the depth of the M2 holes (10 mm. is probably deep enough) in
Sketchup to print this part faster.