Jacobs Associates welcomes William Gates, PhD, PE, PG, as a senior asssociate in its Seattle office. Dr. Gates is a retired U.S. Army Special Forces (Green Beret) officer and specializes in geotechnical and rock engineering, blasting, and hydrogeology. He has 44 years of experience dealing with engineering geology and geotechnical problems worldwide. His solutions have covered a wide range of interrelated geological and geotechnical disciplines attendant to rock mechanics, rock slope engineering, construction blasting, hydrogeology, fluvial geomorphology, soils engineering, instrumentation, and site characterization.

Dr. Gates is nationally recognized for his rock slope and blasting expertise and is often receives invitations from the Association of Environmental & Engineering Geologists to conduct one- and two-day short courses on rock slope engineering design and blasting. Dr. Gates’ additional specialties include photogeologic terrain and fracture trace analysis, fracture flow, and fracture mechanics. He developed and published the Hydro-potential Value (HP-value) technique, a method to semiquantitatively evaluate rock fracture characteristics and predict well yield, specific capacities, seepage, and no-flow conditions.

Dr. Gates is currently the lead rock engineer on Seattle City Light’s (SCL) Boundary Dam Rockfall Mitigation in Metaline, WA, where he conducted a detailed geologic investigation of the engineering characteristics and rockfall problems of the rock mass that houses the turbines and transformer bays.

Jacobs Associates provides solutions for underground projects in the water, wastewater, and transportation sectors. With an emphasis on tunnels and shafts, the firm offers a full range of design and construction management capabilities. They also offer the broader heavy civil construction industry a package of claims and dispute resolution services. Jacobs Associates has offices in San Francisco, Seattle, Portland, Pasadena, San Diego, Boston, New York, Auckland, and Melbourne. For more information, visit www.jacobssf.com.