Avoiding a possible work stoppage, the International Brotherhood of Boilermakers Local 449 ratified the latest contract proposal by Fincantieri Bay Shipbuilding on Wednesday.  Union President Shawn Claflin informed DoorCountyDailyNews.com that the agreement is for five years and was the product of many negotiations between Boilermakers Local 449 and Bay Ship.  He noted that there were struggles along the way but committees representing both sides were able to draft a proposal that the over 280 union members passed.  The union membership had been working under the terms of the old agreement since last September.  Fincantieri Bay Shipbuilding Vice President and General Manager Todd Thayse could not be reached for comment as of Thursday morning.