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Stockwell Engineers believes that providing Harrisburg residents with superior design and construction administration services begins with assigning the highest quality individuals to the project. Our team of professionals will make your construction project a success.


Click on each photo to learn more about your project's team members.

Project Design Team

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Jon Brown, P.E.

Stockwell Engineers

Project Director

As President and Principal Engineer for Stockwell Engineers Inc., Jon has over 25 years experience with municipal infrastructure throughout the Midwest.


Aaron Moen, P.E., P.M.P. 

Stockwell Engineers

Project Manager

Aaron is a registered professional engineer with nearly 25 years of experience in design, construction, and project management. He has extensive experience with leading teams through all phases of a capital project from inception through completion, with a proven track record of delivering projects safely, on budget, and on-time.

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Jim Housiaux, P.E.

Stockwell Engineers

Project Engineer

Jim brings 30+ years of experience to this project, most of which has been in evaluating and recommending wastewater treatment solutions for municipal and industrial clients.


Ryan Truax, E.I.T

Stockwell Engineers

Plant Design

Ryan is an engineer in training with 4 years of experience in writing water and wastewater facility planning documents as well as developing plans and specifications.  He has a Master’s degree in Civil and Environmental Engineering and is currently pursuing his professional engineering license.


Shashi Prasad, P.E.

Stockwell Engineers

Plant Design, Lift Station,

Head Works, Final Disinfection

Shashi has 40 years of experience in water and wastewater engineering. His time as a core designer includes a wide range of projects from lift stations, oxidation ditches, sequencing batch reactors, clarifiers, and screening facilities, to headworks, odor control, chemical feed equipment and chemical storage equipment.


Shane Dennis, E.I.T.

Stockwell Engineers

Project Inspector

Shane is an engineer in training with 2+ years of experience in the design and construction administration of municipal and water related projects. Shane is currently pursuing a Master's degree in Civil and Environmental Engineering with an emphasis in Water Resources.

Project Construction  Team


David Derry

Henry Carlson Construction


With over 40 years of construction experience in construction estimating and project management, Dave is extremely effective during the preconstruction phase of the project. 


Mike Ralston

Henry Carlson Construction

Preconstruction Services

Mike is part of the Preconstruction team. His attention to detail ensures budgets are accurate for projects big and small. Mike is an immediate asset to your project because of his experience working on the Great Plains Zoo renovation and other renovation projects.


Chris Johnson

Henry Carlson Construction

Project Manager

Chris brings an overall knowledge of the latest and most innovative construction methods to the project  He is an approachable member of the team and is always willing to answer any client questions.

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Darin Pfingsten

PKG Contracting, Inc.


Darin has been with PKG Contracting for 23 years and has a history of maintaining high levels of quality while adhering to specifications, schedules and budgets. He will be fully available to the City for the duration of the project to address concerns to be resolved above the project management level. Darin is located in PKG’s Fargo office and can be on-site as needed.

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Russ Sorenson

PKG Contracting, Inc.

Wastewater Consultant

Russ has extensive experience in multiple aspects of the water and wastewater treatment industry including conventional and advanced drinking water and wastewater treatment, storage, piping, pumping, distribution, and collection systems.  He has provided detailed services in master planning and facility plan reports, preliminary and final designs, construction observation and administration and surveying.  

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Mike Sikorski

PKG Contracting, Inc.

Project Manager

With over 25 years’ experience in the industry, Mike has proven to be an asset to the Project Management team.  He will be responsible for preparation of estimates and bid documents, plus help create and maintain construction schedules. 

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