• River hydrology and hydraulics

  • Flood modeling

  • Assessment of flood damage reduction measures

  • GIS water resources-related applications

Addressing the areas of...

flooding scouring
culvert & bridge modifications floodplain encroachments
dam removals sea level rise and climate change

Professional Testimonial
Bill is very knowledgeable in hydrologic investigations and hydraulic analysis.  He has done work for the company as needed over the years.  We are very satisfied with his work and will not hesitate to recommend him to others for work related to hydraulic engineering.
Kin Lam, P.E., Lamson Engineering Corporation, Newton, MA

William J. Mullen, P.E.

Hydrology & Hydraulics Consultant
Registered Professional Engineer

with 40 years of experience in engineering
 and water resources


William J. Mullen, P.E.
Hydrology & Hydraulics Consultant
Newburyport, Massachusetts 01950
Phone: 978-235-0875

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