Sean Kellar, PE, PTOE

Principal Engineer

Sean has over   years of Transportation/Traffic Engineering experience.  Sean’s wide range of expertise includes:  intersection re-design, roundabout design, traffic modeling, bike/pedestrian facilities, traffic impact studies, traffic signal warrant analysis, parking studies, access management coordination, and neighborhood collaboration.  Sean’s experience in both the private and public sectors; passion for safety and excellence; and strong communication and collaboration skills bring great value to any project.  Outside of work, Sean enjoys:  spending time with family, friends, playing music, biking, running, hiking, and being outdoors.

Education and Certification:

• Registered Professional Engineer, State of Colorado (License #38650)

• Registered Professional Engineer, State of Arizona (License #45781)

• Registered Professional Engineer, State of Missouri (License #2015027449)

• Registered Professional Engineer, State of Kansas (License #27166)

• Registered Professional Engineer, State of Wyoming (License #15954)

• Registered Professional Engineer, State of Idaho (License #P-20795)

• Professional Traffic Operations Engineer (PTOE) (Certificate #2647)

• Bachelor of Science in Engineering , Emphasis in Civil Engineering Arizona State University, Tempe, AZ

Professional Work Experience:

• Missouri Department of Transportation (MODOT), Lee’s Summit, MO
  District Traffic Engineer, Kansas City District

• City of Loveland, CO
  Senior Civil Engineer, Transportation Development Review – Public Works

• Kirkham Michael Consulting Engineers, Greeley, CO
  Project Manager

• Dibble and Associates Consulting Engineers, Phoenix, AZ
  Project Engineer

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