Our Staff

Our Staff

Lindsay C. Erdman, P.E. & P.L.S., President

John Hjelle, P.E., a member of the firm since 1995
    Project / Design Engineer

Jesse Kuennen, a member of the firm since 1999
    CADD Specialist Certification
    Certified PCC and Aggregate Technician

John Iverson, Survey Crew Chief.  A member of the firm since 1984.
    Primary Responsibility: Land Surveying Project Manager.
    Certified PCC & Aggregate Plant Technician

Joseph Dietzenbach, Survey Technician. Joined the firm in 2011.
    Survey Crew Assistant/ CADD Technician
    Certified Aggregate Technician - Level 1

Karla Erdman, Administrative Assistant.  A member of the firm since 1995.

    Responsible for accounting and financial reporting.
    Responsible for Project Records and Documentation.