I live in Pittsburgh, PA. Currently, the borought has moved a storm drain in my property. They have done this once before but tried to due a quick fix. The job has taken longer than expected and cost more as well. A descent part of my back yard sunk due to the old drain pipe. The fix is almost complete but now due to the cost of the job they are saying they cant give me back the yard I lost. I have only got maybe a fifth of what I lost. I have three small children and this is where they play. What are my legal rights to have my yard repaired to what it was ?