![]() ![]() The material then is amended with supersacks of Portland cement using a Komatsu PC 300. Two barge-mounted dredges - a Sennebogen 860 material handler and a Komatsu PC400LF excavator – are dredging into 100-cubic-yard scows, which are unloaded into a mixing bin by a Sennebogen 860 material handler. ![]() ![]() Sevenson’s project in a back bay and channel is for maintenance dredging 95,000 cubic yards of clean silt and sand by mechanical dredge, followed by stabilizing it with Portland cement for use as construction fill. OverviewĬustomer Profile: Sevenson Environmental Services, Inc., provides a comprehensive range of remediation services for the cleanup of sites and facilities contaminated by hazardous materials, including remedial construction, dredging and other services. Trimble Marine Construction software (TMC) improved underwater visibility for Sevensons dredging operations. ![]()
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