Jacobs Associates, McMillen LLC announce merger plan

San Francisco-based engineering and consulting firm Jacobs Associates and Boise, Idaho-based engineering and construction firm McMillen LLC announced plans to merge, forming McMillen Jacobs Associates.

“We each have a high level of engineering and management expertise and complement one another well,” Jacobs Associates President Dan Adams said Oct. 24. “Unifying our businesses and beliefs will allow us to better serve our clients and provide expanded opportunities for our employees, particularly in the design-build arena.”

The merged company is to have a staff of 380 working from 19 offices in North America, Australia and New Zealand.

“By merging with Jacobs Associates, we can now offer expanded technical capabilities from staff we highly respect,” McMillen President Mara McMillen said. “The merger also enables us to geographically expand our self-performing construction group.”

Jacobs Associates has focused primarily on detailed design and construction engineering in the heavy civil underground market since it began business in 1954. In recent work, Jacobs has provided owner’s engineer services for the 30-MW Lower Baker Unit 4 Powerhouse hydro project in Washington and the 400-MW Iowa Hill Pumped-Storage plant, part of the 1,037.3-MW Upper American River hydro project in California.


Founded in 2004, McMillen, LLC is an environmental, engineering, and heavy civil self-performing construction firm serving the hydroelectric infrastructure and water resources industries.  Recent projects include the design and construction of the intake modifications at Toketee Dam, which is part of the 194 MW North Umpqua Hydroelectric Project in Washington.  They are currently demobilizing from the first season of construction on the 6.5 MW Allison Creek Hydroelectric Design-Build Project in Alaska, and will continue work for the second season May 2015.    

The companies said the merger would help Jacobs grow construction management, redefine how design-build is delivered, and diversify the company beyond tunnels. They said the merger would expand McMillen’s geographic reach and strengthen its engineering capabilities in rock mechanics, grouting and underground structures.

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