How do I keep my driveway from sinking?
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Likewise, people ask, what causes a driveway to sink?
A sinking driveway is commonly caused by the underlying fill soil collapsing because of organic material (like stumps and roots) decomposing and collapsing, or fill dirt that was not properly compacted.
One may also ask, is it OK to pave over an existing driveway? An overlay or resurface can be used on an asphalt driveway, parking lot, or road way. A paving surface can be deteriorated but still maintain structural integrity in which an asphalt overlay is the proper solution. An existing asphalt surface is the best base for new asphalt.
Additionally, how much does it cost to fix a sinking driveway?
Expect to pay about $2.25 per square foot for basic driveway resurfacing. So a typical residential driveway of 750 square feet would cost about $1,687. If you want patterns or colors, you need to pay more, around $4 to $8 per square foot, or $3,000 to $6,000 for a 750-square-foot driveway.
What causes driveway to rise?
Much like the problems that hit basement walls and floors, your concrete driveway rises because of water in the ground. It freezes and expands, gets warm and contracts.