Natural Gas Pipeline Replacement
November , 2009
We provided crew boat services for the marine operations and diving support throughout the project. The project required dredging more than 1,000 lineal feet of live gas pipeline with an existing burial of over 10 feet. Dredging was conducted within extremely stringent turbidity control. To meet these demands, we provided a Toyo suction-dredging system and the material was pumped into a sealed barge. The dredge material was transported to an offshore disposal site where it was pumped off. The amount of material was in excess of 43,000 cubic yards.
After the new pipeline was installed and tested, the old segment was removed and the new line backfilled.