How to Fix a Sinking Spot in an Asphalt Driveway

Step 1: Safety Precautions

- Wear protective clothing, including gloves and safety glasses.

- Ensure the work area is well-ventilated if using chemicals or solvents.

Step 2: Determine the Type of Damage

- Start by inspecting the sinking spot to determine the extent of the damage. Assess if it's localized to the surface or a deeper issue.

Step 3: Prepare the Area

- Clean the sinking spot and the surrounding area thoroughly. Remove any loose debris or dirt.

- Use a wire brush or broom to sweep the surface to enhance adhesion.

Step 4: Assess Base Layer Condition (Optional)

- If the damage is localized to the surface and the base layer below seems solid, you may skip this step. However, if the sinking is caused by a weak or eroded base layer, this step is crucial.

- Dig out the sinking area carefully, removing the damaged asphalt.

- Examine the base material beneath. If it's weak or soft, you'll need to compact and reinforce it.

- Fill the excavated area with a mixture of crushed gravel or aggregate. Tamp it down firmly to create a solid foundation.

Step 5: Repair the Surface (Patching)

- Begin by filling the sinking spot with a high-quality asphalt patching material.

- Use a trowel or putty knife to spread the patching material evenly, ensuring it fills any cracks or voids.

- Tamp or press down the patching material to ensure it's firmly in place.

Step 6: Allow to Set

- Let the patching material set according to the manufacturer's instructions. This typically takes several hours or overnight.

Step 7: Seal and Finish (Optional)

- Once the patching material has set, you can further seal the area for better protection.

- Apply a layer of asphalt sealer or crack filler over the patched area and the surrounding surface.

- Let the sealer dry completely.

Step 8: Keep Off the Area

- Avoid driving or walking over the repaired area until it has completely set and cured. This will ensure a longer-lasting repair.

Remember, if the sinking spot is extensive or caused by significant damage to the base layer, it's best to consult a professional asphalt contractor for a proper and durable repair.