President Michael C. Salmon is leaving Lowell-based construction management firm TRC Cos. Inc. effective immediately, to pursue other opportunities.

Salmon joined TRC in 1997 and served as president since 2007. Plans to fill the role of president and/or chief operating officer have not been finalized. In the interim, Salmon’s responsibilities will be assumed by the executive management team including Chris Vincze, chairman and chief executive officer.

"I am proud of my association with TRC," said Salmon. "While I look forward to new opportunities, I am also glad to maintain my relationship with TRC and its exit strategy program."

"Mike has been a distinguished leader and contributor, both within TRC and to the industry at large, during his time with our organization," said Vincze. "He helped to pioneer the concept of environmental risk transfer projects and launch TRC’s exit strategy program. As we continue to offer the exit strategy risk transfer service in the future, we plan to maintain a close relationship with Mike as an outside resource to help our clients achieve their objectives."