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Architectural and Structural Engineering Consulting Company

Mission Statement

Provide practical structural and civil engineering solutions to meet our customer’s needs

Tri-Cities Engineering PLLC serves Eastern Washington, Oregon, Idaho and surrounding areas. We are a small engineering firm focused on providing high quality, prompt and affordable services to our customers. We have over 40 years combined experience in structural and civil engineering. Tri-Cities Engineering PLLC is licensed in Washington, Oregon, California, Idaho and Montana. We look forward to working with you.

Some of the areas we currently serve are:

  • Tri-Cities, including Kennewick, Pasco, Richland, West Richland, Benton City, Burbank, and Walla Walla
  • Yakima Valley, including Yakima, Sunnyside, Prosser, Mattawa, and Ellensburg
  • Wenatchee/Central Basin area, including Wenatchee, Ellensburg, Cle Elum, Chelan, and Moses Lake
  • Spokane Valley, including Spokane, Spokane Valley, and Coeur d’Alene
  • Vancouver area, including Vancouver, Lake Oswego, and Portland






Zachary Wright, PE

Structural/Civil Engineer

Zach has experience in both civil and structural engineering and has built a reputation with clients as friendly, dependable and responsive. He has worked on a broad range of residential structural projects, including lateral and vertical designs, shop and pole building designs and additions. He designs metal building foundations and retaining walls. Zach also has more than 10 years of experience as a civil engineer in residential and commercial development and commercial projects. Zach is a licensed Professional Engineer in Washington, Oregon and California.

Rigo Rangel, PE

Structural Engineer

Rigo has worked for more than 20 years in structural engineering and project management. Previously he worked in the area with Bechtel as a Structural Engineer and Canam Steel as a Joist Design Engineer. Rigo has engineered from simple residential structures to large multi-family buildings and commercial projects.

Carlos Jimenez

Structural Engineer

Carlos graduated from Washington State University with a B.S. in Civil Engineering. He been designing structures buildings since 2016. He focuses on delivering reliable structural designs for both commercial and residential buildings.

Priscilla Lopez-Steen, PE

Structural Engineer

Priscilla was born and raised in the Tri-Cities. She graduated with a BS in Civil Engineering from Washington State University . Priscilla has over six years of experience in civil construction and structural design. She is highly motivated, organized and resourceful.

Vanessa Alvarez

Structural Engineer

Vanessa graduated with a B.S. in Civil Engineering from Washington State University. She started her engineering career in 2018. She focuses on delivering reliable structural designs. Vanessa is also the office manager and supports the company’s operations.

Robert Steen

Structural Engineer

Robert received his B.S. in Civil Engineering from Montana State University in 2011.  He has 6 years of Civil Construction experience working for the Montana Department of Transportation. Robert has previous framing experience