Apr 08, 2005. /Lesprom Network/. Louisiana-Pacific Corporation (LP) (NYSE: LPX) announced that it will permanently close operations at its Woodland, Maine, OSB mill on April 15, 2005 due to high long-term costs associated with significant capital investment required to keep the mill competitive and meet upcoming MACT requirements. "We regret the impact the shutdown will have on our employees and on the Woodland community. LP looked long and hard at options to keep this mill operating before making this difficult decision," said Jeff Wagner, LP's VP and general manager of OSB. "Unfortunately, it is not economically feasible to continue operation of the mill. It would require considerable investment to address the age and design of the production equipment. In addition, we will be faced with a large expenditure to comply with MACT regulations that go into effect in early 2006." The mill was not operating at the time LP acquired it from Georgia-Pacific in 2002. It has run intermittently over the past few years, and operations there have been curtailed since November 2004.