Bisso Marine salvaged a 110-ft. crewboat in Sabine Pass, TX. The crewboat which was involved in collision with a ship rolled over and sank in approximately 50 ft. of water with the stern of the capsized vessel ultimately resting on the bottom and the bow keel floating above the surface. The sunken crewboat was positioned in the middle of the channel such that the Sabine Pass was closed by the USCG creating a problem for inbound and out bound ship traffic whose cargos are loaded and discharged at the refineries in the Port Arthur, TX, area. Due to the emergency nature of the casualty, Bisso Marine was able to divert the D/B Boaz from an oilfield services project in the High Island Area to respond. The D/B Boaz and the salvage team were able to rig the crewboat and remove it from the channel to allow the ship traffic to resume. With the crewboat out of the channel, the salvage team was able to salvage the vessel and return it to the owners in a floating condition in spite of considerable damage to the portside below the waterline. The entire operation was conducted without incident with a particular attention to the safety of the salvage team and the environment.