Self Employed to Casual, May 2019 to Present (GEI, Woodard & Curran, Parsons, NKLAC, Dr. Sauer & Partners, Gannett Fleming, HVJ)
Parsons Corporation, Senior Supervising Engineer to Senior Engineering Manager, 1993 to 2019 (Technology Leader for Tunnels, 1999-2019); Sr. Tech. Dir. 2021 to present)
Geomatrix Consultants, Senior Project Engineer, 1991-1993
Earth Sciences Associates, Senior Project Engineer to Senior Supervising Engineer, Associate, 1985 to 1991
Tudor Engineering Company, Staff and Field Engineer, 1981-1985; Consultant 1989 to 1990
Richmond Field Station, Summer 1981, Research Assistant
CA DWR Dams and Canals Unit, Graduate Student Assistant, Summer and December 1980
USGS, Hydrological Field Assistant, Summer 1979
Experience profile includes planning, conceptual, feasibility, preliminary engineering, investigation, analysis, and final design and engineering services during construction (ESDC), seismic analysis, and construction of foundation, pipelines, excavations, dams, tunnels and underground projects (including over 300 tunnels and engineer-of-record of over 50 tunnels and as design manager on more than 20 contracts) earthwork analysis for heavy construction projects, preparation of plans, specifications, and cost estimates for construction, geotechnical recommendations, and coordination of geologists, architects, and engineers, while interacting with regulatory agencies. Provided assistance for review of geotechnical and foundation recommendations for various tunnel, water, wastewater, transportation, and infrastructure projects. Responsible for civil/structural/geotechnical design or design considerations for numerous projects. Participated in many and managed five tunnel design-build projects with constructed values from $21 million to $270 million, including the North Fork Stanislaus Hydroelectric Project, Doha Expressway Drainage Tunnel, Kuwait City Deep Tunnels, Rancho Bernardo PL2, Lake Hodges to Olivenhain Pipeline Tunnel, Sandy River Crossing, and DC Water Anacostia River Tunnel. Participated in two and managed four tunnel design tenders for Contractors valued from $45 million to over $1.3 billion. Alternative deliver projects include three tenders for Singapore DTSS, Port of Miami Tunnel, Alaskan Way Viaduct, Ottawa LRT, DC Water Anacostia River Tunnel, and Ohio River Bridges Drumanard PPP tunnel. Understanding of the design and construction challenges of soft ground tunneling include earth pressure balance TBM specification, hyperbaric intervention specification, deep and large diameter shafts, adjacent structures impact and mitigation, and tie-ins and connection designs.
Lead in engineering services during construction ESDC including tunnel inspection/CM services for Santa Teresa Tunnel, Crystal Springs Lake Tap and East Pilarcitos Pipeline, Coyote Dam Outlet Tunnel, South Bay Tunnel Outfall, Stone Canyon Bypass.
Author/co-author of 19 tunnel investigations for tunnels.
Author/co-author of over dozen GDSR and GBR, reviewer of over 20 GBRs.
Value Engineering: Lake Mathews Outlet, ECIS, NEIS, Last Chance Grade, OCSD SARI, Freeport, SFPUC HTWTP, Laguna Beach Rehabilitation (facilitator), ALCOSAN
Design Review Boards for Panama Line 3, Cap-Ex, California Delta Conveyance Project, SDSU Mission Valley East Tunnels and Station, SFPUC Bay Division Pipeline Tunnel, SFPUC Central Bayside Sanitary Sewer Overflow Tunnel, Iraq Dams (incl. Mosul Dam), EBMUD Southern Loop.
Risk evaluations: SFPUC New Irvington Tunnel (facilitator) and Calaveras Dam, LACSD JWPCP Effluent Outfall Tunnel, Laguna Beach Rehabilitation, South Bay Tunnel Outfall.
Contractor pre-bids for Mackinac Straits PL No. 5 (2019), MI, and Shoreline Tunnel, OH (2021), Houston Surface Water Supply Project (2022)
Engineer-of-Record on over 50 projects including preparation, directions and supervision of detailed design calculations, and preparation of plans and specs.
Author/Co-author of over 100 papers, presentations, lectures on geotechnology, including tunneling, microtunneling, rock mechanics and numerical analysis, groundwater inflow into tunnels, liquefaction, fault crossing design, tiebacks and disputes resolutions and risk management in underground construction. Regarding, DRB’s, for example, author of Technical note in response to “Discussion to Geotechnology in Disputes Resolution, Paper No. 10071 by J. Gould” ASCE Journal of Geotechnical Engineering, July 1997.
National and international tunnel tenders for Design Build.
Tunnel advisor and directions for projects in USA, Canada, Peru, Kuwait, Qatar, Dubai, Abu Dhabi, Panama
4 tunneling technology trips to Japan, 1 to France, 1 to Austria, 1 to Germany, 1 to UK, and many in USA.
Degrees
Bachelor of Arts; Geology, University of California, Berkeley, 1980
Master of Science; Engineering Science with specialty in Geological Engineering from Dept. of Civil Engineering, College of Engineering, University of California, Berkeley, 1981
Registrations
Civil Engineer, C36,677, California Date Earned: 2/21/1983; Expires: 6/30/2026
Geotechnical Engineer, GE2102, CA; Date earned: 1989 Expires: 6/30/2026
Geologist, PG4235, CA; Date Earned: 1987 Expires: 4/30/2027
Expired/inactive PE: Colorado, District of Columbia, Florida, Kentucky, Missouri, Montana, New Mexico, New York, Oregon, Texas, Washington, Wyoming, NCEES
Certifications
Certified Engineering Geologist, EG1387, CA; Date earned: 1988; Expires: 4/30/2027
Engineering-In-Training, CA; Date earned: 1982
Continuing Education
Disputes Resolution Board Foundation Administration & Practice/Chairing (2019); Breakthroughs in Tunneling Short Course (invited: 2016, 2017); Colorado School of Mines Tunneling Short Course (invited: 2011, 2012, 2014, 2015, 2016); Earthquake Engineering Research Institute (EERI) Liquefaction Evaluation, Mapping, Simulation and Mitigation (2014); McMillian Water Survival/HUET Training (2008); Parsons University, Project Management Certification (2006 – 2008); American Concrete Institute Concrete Petrography Seminar (1997); American Concrete Institute Reinforced Concrete Design Short Course (1993); University of Wisconsin: Groundwater, Groundwater Inflow through Porous and Fractured Media (1992); Engineers Joint Council Contract Documents Committee Seminar (1988); American Society of Civil Engineers (ASCE) Engineering and Loss Prevention Course (1987); EERI Strong Ground Motion Course (1987); University of California, Berkeley Extension Groundwater Pollution (1985); ASCE Excavation and Shoring Design Seminars (1984); UC Berkeley Extension Review of Civil Engineering (1983).
Professional Affiliations
American Concrete Institute; ACI 506 Shotcrete, Associate Member; 1987 to 2019
American Geophysical Union, 1981 to Present
American Society of Civil Engineers, Member, 1981 to Present
ASCE-AIME Underground Technology Research Council; 1993 to 2004; Chair Subcommittee on GW Inflow 1993 to 2004
Association of Engineering Geologists; Member, Student Chairman (1981), 1980 to Present
Underground Construction Association of the Society of Mining Engineers; 1986 to Present (formerly American Underground Construction Association since 1982)
Geological Society of American Society, 1986 to Present
International Tunnelling Association, 1991 to 2010; ITA Working Group 15, Underground Space and the Environment since 2002, and Vice-Animateur 2005 to 2010
United States Society of Dams, 1996 to 2018