Mary Nykamp, PE, LEED AP

Manager, Process Engineering, Treasurer on the Board of Directors

Mary’s passion is clean water, the most important natural resource on the planet. She thrives when she can assist a community develop solutions to complex water or wastewater issues. Clean, crisp water is a process involving calculations, conveyance systems, water treatment plants, and quality standards. It is what Mary has excelled at since joining the company in 2008 and continues to do so in her leadership position as Process Group Manager for Wightman’s newly focused water and wastewater discipline. Additionally, she is an important mentor and role model for young female engineers building their careers within the company.

Our people are what makes working at Wightman so great! Listen to what Mary thinks about her job and culture at Wightman.

Areas of Focus

  • Wastewater treatment
  • Water treatment
  • Geotechnical 
  • Engineering
  • Hydrology studies
  • Master planning
  • Environmental



M.S.E. Environmental Engineering
University of Michigan, Ann Arbor, MI

B.S.E. Civil Engineering (Cum Laude)
University of Michigan, Ann Arbor, MI

Professional Training & Registrations

  • Professional Engineer in Michigan
  • LEED Accredited Professional
  • Michigan Soil Erosion & Sedimentation Control Certified


  • Named as a Moody on the Market 40 Under 40 Award Winner in 2020
  • Hickory Creek Interceptor Rehabilitation Project; Project Manager:
    • 2012 - Award of Merit - Engineering, American Council for Engineering Companies of Michigan
    • 2012 - Outstanding Civil Engineering Achievement Award, ASCE SW Michigan Branch
    • 2011 - Public Works Project of the Year Award, APWA SW Michigan Branch

Affiliations & Memberships

  • Member Chi Epsilon
  • Michigan Water Environment Association (MWEA)
  • Water Environment Federation (WEF)
  • American Society of Civil Engineers (ASCE)
  • National Society of Professional Engineers (NSPE)
  • American Water Works Association (AWWA)
  • National Association of Women in Construction (NAWIC)
  • Trustee on the Wightman Board of Directors

Personal Note

Mary’s father and past Wightman President, Tom Deneau, was her very first mentor. He has many traits she respects and has always sought to emulate. He is kind, patient, a hard worker, friendly, outgoing, family-focused, and goal oriented. They share a love of water and wastewater that has created a ripple effect within Wightman. Her work is moving a new department to the forefront of the company, which will benefit countless people for decades. And who knows? Maybe her sons will follow in her footsteps one day like she followed in her father’s.

Mary Nykamp Engineering Wightman

Contact Mary Nykamp

Office: 269.201.2049 Cell: 269.209.6406

Mary's Featured Projects