Keith R. Molenaar

Keith Robert Molenaar is an American civil engineer.

Molenaar was raised in Chicago, and is the second person in his immediate family, after his sister Michelle, to earn a four-year undergraduate degree. He completed a Bachelor of Science in architectural engineering from the University of Colorado Boulder in 1990, and remained at the school to pursue graduate study in civil engineering, earning his master's degree in 1995, followed by a doctorate in 1997. He holds the K. Stanton Lewis Professorship of Construction Engineering and Management at CU Boulder. Following the departure of Robert D. Braun in January 2020, Molenaar took on the role of acting dean of the College of Engineering and Applied Science, and formally appointed to the deanship in July 2022.

Molenaar was elected a member of the Pan American Academy of Engineering in 2012, is a 2017 member of the National Academy of Construction, and a 2019 fellow of the Design–Build Institute of America. Molenaar received the American Society of Civil Engineers' Peurifoy Construction Research Award in 2021.