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Allison Hazen, Tyler Doil, and Joe Dews Named New Principals

April 24, 2019

Join us in congratulating Allison HazenTyler Doil, and Joe Dews as our newest shareholders. They have key roles in developing our business in Seattle, San Diego, and Bozeman, and we look forward to their continued leadership. They join 45 other principals companywide from various engineering disciplines.

Press Release: Coffman Engineers Announces New Principals


Allison Hazen

Allison Hazen, PE manages the civil department in Coffman’s Seattle office and joined the company in 2015. She has more than 18 years of experience and is an accomplished civil engineer in site investigations, ADA evaluations and design, grading, stormwater analysis, and system design, utility design and upgrades, zoning entitlements, permit procurements, and construction assistance. Allison has embraced Coffman’s collaborative culture by actively partnering with other offices on multidiscipline projects while growing the civil department and developing strategic client relationships in Seattle. Her recent work includes project management for Boeing NW region projects, federal work, and with her extensive background in ADA, she partnered with Central Washington University to develop an ADA upgrade program, perform a campus-wide survey, and generate an ADA Transition Plan.


Joe DewsJoe Dews, PE, DBIA manages the electrical department in Coffman’s San Diego office. He joined the company in 2016 and has been developing the electrical department which has gained traction in the market. With more than 15 years of experience as an electrical engineer, Joe has developed a passion for emerging markets. He has grown the Battery Energy Storage Systems (BESS) portfolio at Coffman and completed seven BESS projects with multiple engineering disciplines. He actively pursues business development opportunities through organizational involvement with the local and national chapters of the Design Build Institute of America (DBIA) and other professional organizations.  


Tyler Doil

Tyler Doil, PE, NACE CP manages Coffman’s corrosion control engineering services in the contiguous states. Tyler started his career with Coffman in 2006 in the Anchorage office and moved to the Bozeman office in 2015. Over the past 11 years, Tyler has been instrumental in developing relationships with clients throughout the Rocky Mountain region. He has experience in multiple areas of corrosion control and mechanical integrity including cathodic protection, internal corrosion, protective coatings, AC interference, and direct assessments of various assets including pipelines, facility piping, storage tanks, and marine structures. Tyler is a registered professional engineer and certified as a NACE Cathodic Protection Specialist and Internal Corrosion Technologist. 

Our Vision

To be the premier multidiscipline consulting engineering firm in our markets, providing integrated solutions where our success is measured by our clients' success.

Our Mission

We believe our success depends on our clients' success.