Sean Kellar, Kellar Engineering, Traffic Impact Study Kansas City

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)
  • 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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