Sinkhole Repair

Williamsburg, Virginia

The Job:

A sinkhole opened up in a drainage easement maintained by an HOA. The cause of the sinkhole was identified as an improperly-seated gasketed joint between two 36″ HDPE stormwater pipes. The pipes were approximately 5 feet below the surface, where there was a 3′ diameter sinkhole. The pipe had been poorly installed, so it suffered extensive ovaling due to compression of the top during compaction without lateral support.

CJGeo’s Solution:

Chemical grout injectioninto the sinkhole from the surface to fill the sinkhole and seal the pipe joint.