84th Avenue and Grant Street Intersection Improvements, Thornton, CO

84th-grant-trucks-img_1316Stolfus competed for, and was awarded, this project in this first half of 2015.  Due to a large volume of truck traffic, the City of Thornton desired to increase the left-turn capacity at this intersection.  Stolfus recommended performing a traffic operations analysis to confirm the need, followed by a conceptual design effort to determine the possible alternatives.  Following the completion of the operations analysis and alternatives’ design, the City and Stolfus collaborated on a final design concept which was then elevated to construction plans completed in Spring 2016. Construction elements included the addition of left turn lanes to create double-lefts at each leg, lane alignment with adjacent signals, and full traffic signal replacement design. The City completed right-of-way acquisitions in 2017 and construction is starting in Fall 2017.

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