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Soil Stabilization, Chemical Shoring & Permeation Grouting

Fixing a Sink Hole in a Parking Lot

Caldwell, Idaho Sep 25, 2026

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parking-lot sinkhole inspection and injection layout (image 1)
The problem

What we found

There were a few small surface holes in the asphalt in a parking lot. Upon further inspection we found that some of the holes were up to 21 feet deep. The area was closed off to prevent vehicles from entering the area of concern.

The solution

How we repaired it

There was power, communication and sewer in the area so we had location services come and mark all of the utilities. We placed our injection tubes up to 20 feet deep with our proprietary deep injection system. The first visit we had a total of 8 injections and we installed a large amount of material to fill and stabilize the void. After this initial visit we got another call from the property owner with a new area and a new hole for us to come and to remediate.

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The result

What changed

After two visits the area is now stable and the parking lot has been restored to normal use.

Have a similar problem?

Let us test what is underneath.

We assess the site and test the soil before recommending a repair.

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