Staff Professionals

The greatest assets of our company are the members of a dedicated and knowledgeable team of engineering and surveying professionals. They are not only highly trained in their areas of expertise, but also totally committed to providing unparalleled service to our clients.

Key personnel are listed below. Please feel free to contact our staff members via e-mail.

  • Daniel D. Eisenbraun, PE, PLS, is the President and one of the original founders of Eisenbraun and Associates. He is the principal in charge of negotiation and contracting on all projects within the firm. Dan is a registered Professional Engineer in the states of South Dakota, Nebraska and Minnesota. He is also a licensed Land Surveyor in the states of South Dakota, Colorado, Minnesota and Missouri. He has a BS in Civil Engineering from the SD School of Mines and Technology. Dan has also served as the Project Manager for hundreds of successful Corps of Engineers' projects since the mid-1980's.

  • Todd Van Maanen, PE, is the Vice President of the firm and is the Engineering Department Head at Eisenbraun and Associates. He brings great depth to the firm in the design and management of construction projects. He has been responsible for the design of several hundred large-scale Animal Waste Management Systems and is widely recognized for his expertise in this field. Todd has a B.T. in Construction Management from the University of Northern Iowa as well as a B.S. in Civil Engineering from the University of Wyoming. Todd is a registered Professional Engineer in the States of South Dakota, Nebraska, Iowa, Missouri, Minnesota, Kansas, Colorado, Wyoming, and North Dakota.

  • Brett R. Kennedy, PLS, CFedS, is the Head of the Survey and Mapping Department at Eisenbraun and Associates. He is a licensed Land Surveyor in the states of South Dakota, Nebraska, Iowa, Kansas, Colorado, Minnesota, Montana, Wyoming, and North Dakota. He is also a Certified Federal Surveyor (CFedS). Brett's formal education includes a degree in Surveying & Drafting, and an A.A.S. degree in Surveying and CADD Technology from Southeast Community College. He has two decades of experience as a project manager, survey crew chief or crew supervisor on large federal and private projects.

  • Bradley S. Woerner, PE, is the Agricultural Engineering Manager for the firm.  He holds a Master's Degree in agricultural engineering from Iowa State University, and is a licensed Professional Engineer in the States of Iowa, Minnesota, Montana, Nebraska and South Dakota.  Brad has worked with farmers, livestock producers, state and local government agencies in air and water quality, environmental permitting and design of livestock production facilities, wastewater facility design and management, grain storage, drying and handling facilities, nutrient management planning and storm water management system design and analysis. Brad is also certified as a Technical Service Provider (TSP) through the Natural Resources Conservation Service.  Mr. Woerner's experience working for the Iowa State University Extension Service is beneficial in his understanding of swine, dairy, and cattle feeding operations.

  • Keith B. DeJong, PE, is a project engineer at Eisenbraun and Associates. Mr. DeJong holds a Bachelor of Science degree from the South Dakota School of Mines & Technology in civil engineering and is a licensed Professional Engineer in the States of South Dakota, Nebraska and Iowa. He has over a quarter century of experience in design and project management of water treatment and distribution projects, wastewater treatment and collection projects, street and airport projects, as well as in administrative and management responsibilities. Keith is also certified as a Technical Service Provider (TSP) through the Natural Resources Conservation Service and assists with the design of animal waste management systems.  Prior to joining Eisenbraun and Associates, Keith served for many years as a City Engineer which provides him with great understanding of the challenges our municipal clients face.

  • Paul A. Hoebelheinrich, PLS, is a Civil Engineering Technician for the firm.  As a licensed Land Surveyor in the State of South Dakota, he serves as an experienced crew chief on boundary, topographic, hydrographic, and construction projects.  Paul’s formal education includes an A.A.S. degree in Civil Engineering Technology from Southeast Technical Institute.  One of Paul’s functions is serving as the Survey Technical Manager for the firm. His survey software and equipment expertise is used on a wide variety of large federal and private projects.  Paul has been a supervisor on many large and complex hydrographic surveys.

  • Chris A. Gadeken is a Certified Survey Technician and is the lead designer and CADD technician for the firm.  His 12 years of experience have all been with Eisenbraun & Associates, where he has worked both in the field and office on a number of notable and challenging projects.  Being proficient in AutoCAD Civil 3D has allowed Chris to design many municipal and commercial engineering projects.  In addition, his formal training with the company's High Definition 3D Laser Scanner has allowed for growth in the company's experience and capabilities.

  • Will T. Newbold is a Civil Engineer with 10 years of experience in civil engineering, which includes highway construction and design work.  He has a B.S. in Civil Engineering from the South Dakota School of Mines & Technology. His experience with FAA and DOT projects as well as serving as a construction foreman in Wyoming, Montana, and South Dakota performing construction administration, inspection, and design adds valuable leadership and knowledge to the Eisenbraun team.

  • Brian J. Benson is a licensed Land Surveyor in the states of Nebraska and South Dakota. With an education in Surveying and CADD Technology, Brian has nearly 20 years of experience in surveying. This includes topographic, ALTA, and boundary surveys, while also performing construction staking. Brian is also a Nebraska Certified Erosion and Sediment Control Inspector and is proficient with AutoCAD Civil 3D.

  • Lois E. Bottolfsen is the Business Administrator for Eisenbraun & Associates. With more than a quarter century of experience within the firm, she provides excellent assistance to our clients for their needs or directs them to the appropriate professional. Lois manages all accounting and HR functions in the firm as well.