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Colin Dahlen is a highly experienced construction management professional currently serving as a Senior Construction Manager and Inspector at O'Connor Construction Management, Inc. since November 2020. Additionally, Colin holds the position of Principal at Cornerstone Ground Improvement, a role maintained since August 2019, focusing on independent ground improvement consulting. Previous experience includes over 13 years at Helical Drilling, where Colin advanced from Project Manager to Chief Engineer and Department Head, overseeing more than 500 ground improvement projects in the Northeast and New York. Colin Dahlen earned a Master's degree in Structural Engineering from the University of Massachusetts Dartmouth and a Bachelor of Science in Civil Engineering from the University of Massachusetts Amherst, with additional studies at Tufts University.