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Summit County, CO


CTLIThompson has a long history in Summit County — Founder Bob Thompson led the groundwork for the first lift towers at Keystone Resort and Copper Mountain, thanks to his part-time gig as a ski instructor. We formally opened an office here in 2014, with the help of previous Summit County Branch Manager, George Benecke. The office’s early projects were primarily geotechnical services for residential, commercial and municipal projects, including septic and pavement design. Summit County has further expanded its capabilities by adding an environmental specialist and structural engineer.




500 Brian Avenue, Unit A

Silverthorne, Colorado 80498

Mailing Address:
PO Box 2122
Silverthorne, CO 80498

Phone: (970) 453-2047


Greg Crum_edited.jpg

Greg Crum, PE

Division Manager

Since the mid-1990s, Greg has worked on a diverse range of projects in many parts of the world, in various capacities of geotechnical and civil engineering on both the consulting side and contracting side of the spectrum.  Projects include roadway infrastructure, bridges, dams, mines, high-rise buildings, high-end residential buildings, deep excavation lateral support, tunneling, airports, railways, retaining structures, landfills, pipelines, power plants, and wastewater treatment plants. 

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