Emeline Avenue Township of Hamilton Hamilton, New Jersey Back to Project List Jet Grouting Project Overview: Layne GeoConstruction designed and constructed a system of jet grouted columns to provide a crown over a collapsed zone of an existing concrete block sewer tunnel and reduce seepage into the collapse zone from an unknown leaking utility. Sacrificial jet grout columns were installed first to reduce water inflow through the collapsed zone. The top of the sewer tunnel was 50 feet below the existing ground surface.     Value of Work Performed: $367,000 Project Duration: 2 weeks Project Completion Date: August 2006 Project Reference: Project Owner Township of Hamilton John Leverance / Jerry Haimowitz (609) 581-4140 Engineering Consultant Haley & Aldrich, Inc. David A. Schoenwolf (703) 336-6706