SENTOW 68' Electric Fleeting Towboat | Conceptual, Detail & Production Design. Marquette Transportation Company | 189' 9,300 BHP Linehaul Towboat | Basic, Detail & Production Design Vigor Shipyards | Savage Ammonia Barge ATB | Detail and Production Design ASR | 460' ATB Dry Bulk Carrier | Functional, Detail & Production Design Kirby Corporation | 6,600 BHP Linehaul Towboat | Basic, Detail & Production Design State of Maine | Fast Response Harbormaster | Basic, Detail & Production Design Marquette Transportation Company 160' Triple Screw Z-Drive | Basic, Detail & Production Design State of Maine Ferry | Detail & Production Design ACBL 11,000 BHP Linehaul Towboat | Basic, Detail & Production Design m/v Scarlett Rose Furlong | Basic, Detail & Production Design