Meet The Team

John A. Zwingman, P.E. – Civil Engineer

President of Advanced Consulting Engineering Services (ACES)

Bachelors of Science Degree, Colorado School of Mines – Golden CO (1994)

Professional Engineer – Civil, Nebraska (E-9608),

County Highway Superintendent, Class A (S-1398)

City Street Superintendent, Class A (S1397)

John has over twenty years experience as project engineer and manager specializing in Municipal and Agricultural Engineering

Leanne R. Ritter, Project Designer

Treasurer/Project Designer of Advanced Consulting Engineering Services

Associates of Applied Science & Technology, Southeast Community College, Lincoln, NE (2002)

Leanne is designer and drafter for multiple projects including earthwork, underground utility layouts, water, sanitary sewer, paving projects and agricultural feedlot design and layout as well as NDEQ permitting. Leanne also is experienced in collecting and translating topographic data, staking projects, and survey coordination.

Terry L. Schulz, Licensed Surveyor

Bachelor of Science, Industrial Technology, Wayne State College, Wayne, Nebraska (1989)

Surveyor-In-Training Certificate (1994)

State of Nebraska Board of Examiners (S.I.T. #123)

Registered Land Surveyors Certificate (1997)

State of Nebraska Board of Examiners (R.L.S. #550)

Terry has completed various staking projects, lot surveys, and section corner research, location and monumentation. He is the County Surveyor for Wayne County, Nebraska and has been a senior crew member and inspector on numerous NDOR projects.

Brent Hegemann, Surveyor/ Project Observer

Associates of Applied Science, Surveying, Southeast Community College, Milford, NE (2010)

Brent has over 5 years of professional surveying experience. He has overseen multiple projects for Advanced Consulting Engineering Services and ensures projects are completed according to plans and specifications.

Brandi Crippen, Drafter/ Office Staff

Brandi has experience in Drafting, plan preparation and submittal. She is responsible for Survey Department drafting, and marketing.

Jeannette Rolf – Office Manager

Associate of Applied Science, Accounting, Spencer School of Business, Grand Island, NE (1991)

Jeannette is responsible for engineering contract preparation and preparing specifications for a variety of developments.