Problem: This 2 car driveway has a large dip in the center. Besides being an eyesore, this area pools water when it rains heavy and is a less than ideal surface for the kids to play basket ball.
Evaluation: The main line for this subdivisions sanitary sewer system runs through the front yards on this side of the street. These types of sewer lines are anywhere from five to twenty feet deep. After these lines are buried, the loose dirt can begin to slowly settle down into the trench over a period of many years. You may also notice that the yard on either side of the driveway also has the same dip.
Strategically drilled small holes through surface of the driveway pads involved.
Slurry viscosity was determined by soil density and distance the driveway needed to be lifted.
Slurry was then injected through the holes which lifted the driveway back into its original place.
Further recommendations to this customer include the following:
Fill low areas in the yard with dirt on both sides of the driveway.
Check gutter runoff from the house. Try to divert water from running into this area.