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Multidiscipline Engineering Firm

O'Brien Engineering, Inc. (OEI) is a multidiscipline architecture/engineering (A/E) firm with capabilities in program and project management, environment, and real estate. To view a full list of our Federal and Municipal brochures and capability statements, visit >> /

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One Water. Solved.

The average cost to design and build a new reservoir is $1 billion. To make matters worse, there's a huge time commitment, as in half a century, until you have a finished dam. Environmental and social impacts are not an…

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Did You Know?

Did you know nickels, pennies, quarters and dimes are made with hydraulic presses? Learn more fun facts in this article from Bernell Hydraulics >>

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About Us

Our goal is to always maintain a keen awareness of your needs for profitability and timeliness. For more than 30 years, O'Brien Engineering, Inc. has assisted our clients in addressing not only the technical aspects of their projects, but also…

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P3 Water Summit

If you work in water, you should consider attending the P3 Water Summit (virtual) on April 22-23. Not just because Jim O’Brien will be speaking (even though that’s a great reason!), but also because it’s a great event that discusses…

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