Underground

"What Lies Beneath"

With its reputation as a leading innovator of construction methods, GBI has risen to the challenge of performing all of our own underground site utilities work, which includes installing storm, sewer, domestic, firewater and joint trench utilities. As underground utilities and general excavations have become more complex and critical, GBI has kept ahead insuring the highest productivity with the maximum cost effectiveness. Knowledgeable and experienced crews use state-of-the-art underground equipment with quick-connect attachments to maintain production levels while properly installing underground lines. Through the use of non-invasive excavation technology with an Air Knife, GBI verifies USA-marked existing facilities before digging.

GBI is capable of installing every type of underground pipeline:

• Cast-Iron, Asbestos-Cement
• Reinforced Concrete
• Welded Steel and Fusion Welded Plastic
• Gas Mains
• Domestic Water and Fire Systems
• Sanitary Sewer and Drainage Lines
• Steam Distribution
• Below-ground Telephone and Electric Conduits
• Direct Burial or Multiple Concrete Encased Conduits
• Landfill Leachate Systems
• Box Culvert Systems
• Joint Trench

Signature completed projects include:

• Vintage Oaks Shopping Center
• Potrero Hills Landfill
• Drake’s Cove
• Woodview Estates