Marohn received a Bachelor of Science in Civil Engineering and a Masters in Urban and Regional Planning from the University of Minnesota.

Marohn admits to missing the license renewal deadline but acted quickly upon being made aware of the situation and addressed the oversight.

Marohn viewed this action as a limitation upon his first amendment rights because of his critical statements made about the practices of traffic engineering, as well as his disapproval of civil engineers who he views as doing little to protect human life on roads.

[9] Marohn believes that post-World War II suburban development has failed because it is inherently economically unsustainable.

[10] He posits that low-density communities do not produce the tax revenue necessary to cover either their current services or the long-term costs of maintaining and replacing their services, and that suburbs are very difficult to adapt to an efficient, dense model because they were built as fully developed places.