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:
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Registered Professional Engineer, State of Colorado (License #38650)
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Registered Professional Engineer, State of Arizona (License #45781)
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Registered Professional Engineer, State of Missouri (License #2015027449)
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Registered Professional Engineer, State of Kansas (License #27166)
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Registered Professional Engineer, State of Wyoming (License #15954)
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Registered Professional Engineer, State of Idaho (License #P-20795)
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Professional Traffic Operations Engineer (PTOE) (Certificate #2647)
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Bachelor of Science in Engineering , Emphasis in Civil Engineering Arizona State University, Tempe, AZ
Professional Work Experience:
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Missouri Department of Transportation (MODOT), Lee’s Summit, MO
District Traffic Engineer, Kansas City District
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City of Loveland, CO
Senior Civil Engineer, Transportation Development Review – Public Works
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Kirkham Michael Consulting Engineers, Greeley, CO
Project Manager
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Dibble and Associates Consulting Engineers, Phoenix, AZ
Project Engineer
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