gatx corporate site links to other web sites conditions of use privacy contact asc fleet and operations asc s fleet m v american spirit m v burns harbor m v indiana harbor m v walter j. mccarthy jr. m v american century m v american integrity m v st. clair atb ken boothe sr. lakes contender m v american mariner m v h. lee white m v john j. boland m v adam e. cornelius str . american victory str . american valor m v buffalo m v sam laud m v american courage self unloading technology great lakes trade patterns great lakes ports great lakes docks safety inside asc outstanding mariners soundings newsletter asc photo gallery community partnerships employee information center customer information customer web sites employment licensed officers unlicensed seamen office staff employment forms asc and shedd aquarium working together read more asc photo gallery an asc self unloader at work throughout our history american steamship company asc has been a pioneer in great lakes vessel transportation . founded in buffalo new york in 1907 asc has witnessed and responded to dramatic changes in great lakes shipping and the industries it serves many times leading the way with innovative solutions that have had a positive impact on lakes shipping throughout the years . our great lakes fleet consists of self unloading vessels that range in length from 635 feet to 1 000 feet . the diversity of our asset base enables us to transport a variety of dry bulk commodities including iron ore pellets coal and limestone aggregates . our single trip vessel carrying capacity ranges from 24 000 to 81 000 gross tons . during the navigation season our vessels operate twenty four hours a day seven days a week and require no onshore assistance to unload cargo . unloading speeds range from 7 000 to 10 000 net tons per hour . today under the ownership of gatx corporation asc continues to provide safe efficient and environmentally responsible waterborne transportation . we are dedicated to continuously building value for gatx our customers our employees and the communities in which we live and operate . american steamship company a subsidiary of gatx corporation 500 essjay road williamsville ny 14221 tel 716 635 0222 fax 716 635 0220 e mail ascinfo gatx.com 2016 american steamship company all rights reserved