How to repair asphalt 4 inch drain pipe3/14/2024 The deeper the hole and the steeper the walls are, the greater the danger of collapse. Never enter a sinkhole that is deeper than chest height. Collapse of the sinkhole walls can lead to injury or death. How deep is it? How wide is it? Is there a solid floor?īe very careful when examining or working in sinkholes. Before any remediation work is done, the extent and cause of the sinkhole should be determined.įirst, use a probe to investigate the hole. In many cases, sinkholes can be repaired by the homeowner. They can have various shapes and sizes and can grow or deepen either slowly or rapidly. Sinkholes may occur along outside walls or in the lawn or garden. Since homeowners commonly call them sinkholes, we will also. These voids can become so large that the soil and grass “roof” sinks or collapses to form large holes. However, water can burrow through loose layers of soil or poorly compacted areas to create underground voids. True sinkholes are formed in areas with limestone rock and karst geology, which can be found elsewhere in Virginia, but not in our region. In Fairfax County, these depressions technically are not real sinkholes. Depressions often develop in suburban yards.
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