CareersSEMA is a leading construction service provider to the railway industry in Canada and the United States. SEMA, through its operating companies – SEMA Railway Services, groupe SEMA, SEMA Railway Structures and AFM specialize in the design, fabrication, and installation of railway and transportation infrastructure.VIA RAIL – Chatham Sub BridgeIn 2008 VIA Rail Canada publically tendered the job to repair four (4) of its bridges on the Chatham subdivision near Windsor Ontario. The bulk of the work was steel repairs, however there was also concrete repairs and bearing replacements to be done.Ontario Northland RailwayMoose River RehabilitationThe Moose River bridge is situated along the Ontario Northland Railway corridor between Cochrane and Moosonee where the ONR provides the only means of ground transport to Moosonee and Moose Factory from Highway 11. (The bridges is 45 miles south of Moosonee Ontario.)Ontario Northland RailwayMarten Creek Bridge ReplacementThe Marten Creek bridge is situated along the Ontario Northland Railway corridor between North Bay and Temagami Ontario. more... See more text