Thunder Bay, Ontario-based Engineering Northwest Ltd. (ENL), a professional consulting engineering firm, has joined Hatch Mott MacDonald (HMM). ENL is focused on highway, municipal, water, and wastewater engineering, and project and construction management services. HMM and ENL have worked closely together for the past 10 years, collaborating on a wide variety of projects for the Ontario Ministry of Transportation, CP Rail, and Cliffs Natural Resources.