GeoSystems Consultants, Inc.
Geotechnical Engineering and Laboratory Testing

Celebrating 20 years of service

Sinkholes and Karst


GeoSystems has vast experience in evaluating, designing for and remediating sinkholes in the Delaware Valley.


With the passage of geologic time, the solubility of carbonate rocks such as limestone and dolomite, results in the enlargement of small natural joints and fractures into open channelways. Intersecting fractures can become enlarged into chambers and caverns, and the soil-bedrock interface can become pinnacled. The soil cover is subject to movement into the bedrock voids, aided by downward percolating water, resulting in soil voids which migrate toward the surface. When the “roof” of a soil void nears the ground surface, a collapse of the roof can occur, resulting in a sinkhole.


GeoSystems reduces the risk of damage to structures by utilizing compaction grouting, gradebeams, structural slabs, micropiles and appropriate construction of utilities and stormwater facilities.




Existing structures and areas affected by sinkholes can be remediated using inverse filters, flowable fill, compaction grouting and other techniques depending on the size of the sinkhole, the structures and potenital risks.


GeoSystems has successfully designed in the sinkhole prone areas of King of Prussia, Great Valley, Lancaster, and the Lehigh Valley.

GeoSystems reduced the risk of damage to structures by including the use of compaction grouting, gradebeams, structural slabs, micropiles and appropriate management of utilities and stormwater facilities.


Existing structures and areas affected by sinkholes can be remediated using inverse filters, flowable fill, compaction grouting and other techniques depending on the size of the sinkhole, the structures and potenital risks.


GeoSystems has successfully designed in the sinkhole prone areas of King of Prussia, Great Valley, Lancaster, and the Lehigh Valley.