James D. Clark, P.E.


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Mr. Clark has been engaged in civil engineering design and construction engineering since 1981.  He has consulted in the design of a wide variety of commercial, residential and public works projects.  He has considerable experience in design of grading, storm drainage, erosion control Best Management Practices (BMPs), detention ponds, sewer and water systems, streets and roads.  With particular strength as a team player, Mr. Clark excels at working with other design professionals and key project players in the developing engineering consultation as need during the construction phase.


B.S., Civil Engineering, University of Washington, Seattle, 1981


Civil Engineer - California, No. 40284

Professional Memberships / Activities / Accomplishments

  • American Society of Civil Engineers - Member and past Redwood Empire Branch President

  • American Council of Engineering Companies

Shane W. Rauch, P.L.S.

Senior Land Surveyor

Mr. Rauch is a qualified and experienced land surveyor with 25 plus years of experience. He is well versed in survey and mapping principles and standards, and the use of current survey technology. Shane is a proven communicator who manages and supervises crews for multiple projects and develops excellent working relationships with clients. He is well organized, plans daily work operations, conducts records research and performs boundary analysis and calculations. He is familiar with an array of computer applications for land surveying and mapping and has experience in both public land surveying and metes and bounds.


Professional Land Surveyor - California, No. 9471 Professional Land Surveyor - West Virginia, No. 2091


  • GIS, ArcView, ESRI, 2003

  • Geomatics and GPS certified

  • Remote Pilot in Command, FAA part 107

Leon E. Oberkamper, P.E.

Senior Civil Engineer/Project Manager

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Mr. Oberkamper has been engaged in the practice of Civil Engineering and Land Surveying in the North Bay since 1961.  He has performed and directed Civil Engineering, Planning, Design, Surveying, Construction Staking and Consultation for Land Development projects.  He has designed streets, highways, storm drainage systems, sanitary sewer facilities and water systems.  His project involvement has included municipal improvement projects, multiple family residential projects, commercial and office facilities, shopping centers, mobile home parks and industrial parks.  The work has included Boundary and Topographic Surveying, preparation of Legal Descriptions, Record of Survey Maps, ALTA Surveys, Parcel and Subdivision Maps, Grading, Improvement, Drainage  and Utility plans.


B.S., Civil Engineering, University of California, Berkeley, 1955


Civil Engineer - California, No. 12094

Civil Engineer - Colorado, No. 18602

Civil Engineer - Arizona, No. 22118

Professional Memberships / Activities / Accomplishments

  • Consulting Engineers and Land Surveyors of California (CELSOC)

  • Bay Counties C.E. & L.S. Association

  • National Association of Home Builders

  • Building Industry Association

  • Marin Builders Exchange

  • North Coast Builders Exchange