Commonwealth Engineers announces the promotion of Theresa Criss-Hartwig and Drew Flamion to Partner

Commonwealth Engineers, Inc. (Commonwealth) announces the promotion of two staff members to Partner. Commonwealth Partners have a vested interest in helping employees grow with our company and working with Indiana communities with their water resource needs and long-term goals.


Theresa Criss-Hartwig joined Commonwealth Engineers in 2009 and served as a Business Development Manager. Theresa is a returning employee who left Commonwealth in 2013 to serve as the Director of the Indiana Association of Regional Councils. We welcomed Theresa back in 2018 as our Director of Business Development. As Director of Business Development, Theresa oversees and executes business development efforts throughout the State of Indiana while leading Commonwealth’s regional business development managers and marketing team. Theresa holds a B.A. in Government and Business Administration from Western Kentucky University. She enjoys helping communities across the State of Indiana provide safe, clean, and reliable drinking water to its residents.


Drew Flamion, P.E. is a Project Manager that has been with Commonwealth Engineers since 2006. His civil work expertise lies in hydraulic engineering and water resources. Drew has developed, assisted, designed, and overseen a variety of civil projects including utility master plan documents; various potable water, wastewater, and stormwater infrastructure projects; dams and levee projects; hydraulic and hydrologic model development; permit assistance; utility coordination; and various transportation projects. Drew has helped many communities implement such projects by utilizing federal and state grant funding opportunities, and by working closely with the owner, administrative agencies, and contractors, to ensure successful project outcomes. Drew enjoys being a part of a team that provides the critical infrastructure that everyone takes for granted and ultimately makes the community a better place to live.