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1-800-331-0175 World Leader In Large Diameter Shaft and Geotechnical Construction Solutions

   
 




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Groundbreaking Solutions. One company, SDI, delivers both ground modification solutions and mechanically excavated shafts on time and on budget with one of the lowest EMR ratings in the industry:

Small diameter shafts for utilities and service
Large diameter shafts up to 20(6m) in diameter and 2,000 deep (600m) for access and ventilation

Geotechnical Construction using