In the paper: HOW ROUGH IS THE SURFACE OF EUROPA AT LANDER SCALE?Hobley et al produce this table
So, for a surface temperature of 132 K (about -150 C) it loses about 5.66 meters over the average age of the surface of 50 million years. For a temperature of 128 °K (-154 °C) it loses 1.28 meters in 50 million years, tailing off to 10 cms at 116 °K (-166 °C).
One scientist has suggested this may lead to spectacular ice blades especially in equatorial regions
For more on this: If there is a possibility of life on Europa, then why did NASA land a craft on Titan and not Europa?