About Us

2010 AEI logo FINAL

Arrowhead Engineering, Inc.

Our company logo has symbols in the four directions.  They are derived from the sweatlodge songs.  In those songs, it mentions: fire, wood, rocks, and water.

These basic elements within the sweatlodge create an environment that is very hot, dark, and difficult to withstand.  With determination, focus, and commitment these elements teach character and most importantly build integrity.  These ideas serve as the foundation to Arrowhead Engineering, Inc.




Merwin Yellowhair is President of Arrowhead Engineering, Inc. (AEI),  a 100% Diné consulting firm that provides civil engineering services.  Raised on the Navajo reservation in Kayenta, Arizona, Merwin was raised in a Traditional Diné environment where humility and sincerity are paramount.  Implementing his cultural teachings, Mr. Yellowhair has connected the technology of engineering with cultural sensitivity to enhance the balance between nature and construction, thus Bringing Culture to Construction©.


Mr. Yellowhair’s civil engineering experience spans a broad spectrum of civil design, water resources, and planning endeavors in the private and public sectors.  His design experience includes industrial, commercial, and residential site plans, water distribution and wastewater collection systems (WaterCAD & SewerCAD), watershed drainage analysis and report, floodplain hydraulics (RiverCAD), and pumping analysis.  Mr. Yellowhair has an excellent background in civil engineering analysis and reporting, AutoCAD Drafting and Training (LDD and Civil 3D), construction inspection, project scheduling, budgeting, personnel training, and problem solving.  Mr. Yellowhair has provided civil engineering services for Tribal Government and Agencies and provides a service that is highly dependent on Client satisfaction and communication.

Mr. Yellowhair has received his Bachelors and Masters degrees in Civil Engineering at Northern Arizona University.  Mr. Yellowhair is a registered P.E. in the states of Arizona, New Mexico, Nevada, Colorado, and Utah.  He is also a member of the American Society of Civil Engineers, Arizona Floodplain Management Association, and American Society of Floodplain Managers.