Is there an alternative to breaking up a walkway after it has sunk? We currently have a walkway that is typically at least 2 inches underwater at all times in the the late winter and spring. I know that the grading in our backyard is poor and that's part of the issue, though i'm pretty sure the concrete has sunk enough that the regrading may not fix the issue 100%. It's about 26 feet of a curved walkway. Would the best option be to just rip it up and start over?