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Sustainability Fig. 1(c): Extent of shotcrete station wall before backfill of Fig. 2(b): Light rail station east section retaining wall drainage and rail bedding (Photo courtesy of Harry Olsson) showing support for adjacent bridge abutment Fig. 2(a): Jefferson County Government/Golden light rail Fig. 2(c): Light rail station showing shotcrete and soil nail station in operation, showing adjacent US Highway 6 support for tunnel out of station by the local boards of Jefferson County and a great solution for the project. This innovative Golden, CO. The foresight of the general con- technique in building retaining walls also earned tractor, Transit Construction Group (DTCG)— this project the “Award of Excellence” in 2011 a joint venture combining Herzog Contracting from the Rocky Mountain Chapter – ACI, Corp. of St. Joseph, MO; Stacy Witbeck Inc. of awarded at the chapter’s 43rd Annual Concrete Alameda, CA; and RTD, the owner—made this Awards Program. Warren Harrison, PE, is the President of WLH Construction Company in Denver, CO, specializing in shotcrete, soil nailing, grouting, and concrete repair. He is cur- rently serving as a member of ACI Committee 506, Shotcrete, and is a past Board member of ASA. A graduate of the Colorado School of Mines with an MBA from the University of Colorado at Denver, Harrison has worked on projects from Kodiak, AK, to Tiberius, Israel, and many places in between. Shotcrete • Spring 2015 33


2015SpringShotcreteEMag
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