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      Dennis A. Sack, P.E.,

      is Senior Vice President and Associate Engineer at Olson Engineering. He has over 25 years of experience in the design and application of instrumentation systems for the measurement of mechanical parameters, and has specialized in nondestructive evaluation of infrastructure for the last 20 years. His experience includes bridges, dams, buildings, pavements, foundations, etc. Mr. Sack’s experience also includes the design and construction of various electrical systems, including amplifiers, sensors, filters, etc, as well as extensive experience in the acquisition and interpretation of nondestructive testing (NDT) data. Mr. Sack has authored numerous papers and articles on nondestructive evaluation techniques and applications.