management

Rob Pierce crop for website 01-07-19.jpg

ROBERT PIERCE
President

Rob has more than 40 years of experience in all types of heavy civil construction. His dedication to the industry, combined with his people and team building skills, makes him uniquely qualified to lead Achen-Gardner Construction into the new phase of its history as a partner with Emery Sapp & Sons.

Rob has enjoyed a distinguished career that began in 1974, working as a union laborer on the Washington, D.C. Metro at Dupont Circle. After six years of working in the trades on different large projects, Rob went to college and graduated in 1984 with a B.S. degree in Construction Management. As a result of his field experience, passion, leadership skills, and common-sense approach, Rob’s career ascended rapidly.

He worked as a General Superintendent in 1988 on L.A.’s first light rail project, and he worked as a Structure Superintendent in 1990 for the $250 million Oceanside Treatment Plant. After serving as Project Manager on The Embarcadero in San Francisco and on the Central Coast Aqueduct in San Luis Obispo, Rob was promoted to the position of Director of Operations. In 1999 Rob transferred to Texas to be Project Manager on a $150 million interchange. After its successful completion Rob was promoted to the role of Area Manager with subsequent promotions to Central Region Manager and Deputy Division Manager of a $800 million annual large project business. During the period from 2003 to 2015 Rob was involved in some of the largest infrastructure Design-Build and Construction Manager at Risk projects in the United States. These multi-million and multi-billion-dollar projects included highways, signature bridges, light rail expansions, and earth fill and concrete dam construction.

Rob was born and raised in California and holds an A.A. degree in Civil Engineering Technology from Butte College and a B.S. in Construction Management from California State University, Chico. Rob has been married to his high school sweetheart for more than 40 years and has two children and two grandchildren.


Dan Spitza crop for website 01-07-19.jpg

DAN SPITZA, PE, VMA
Vice President, Director of Business Development, Director of Project Managers, and Director of Design Services

Dan started his career in Arizona in 1985 and joined the Achen-Gardner team as an estimator and project manager in April 1998. Dan possesses all of the necessary experience and knowledge to participate and understand all phases of any project. His years in the southwest area construction industry, impressive background as a registered professional civil engineer, and grass roots experience having held positions ranging from project engineer to project superintendent to design phase manager have enabled him to effectively evaluate the construction methods and management systems at Achen-Gardner in order to achieve new levels of excellence. His efforts have been rewarded with steady increases in Achen-Gardner’s competitiveness, annual volume, and market share.  

Dan is currently serving on the Board of Directors as Chairman for the Arizona Chapter Associated General Contractors and is an active member of AWA, DBIA, AMIGOS, and the Arizona Chapters of AGC, APWA, and ACEC. His expertise and ability to establish important professional relationships has been instrumental in Achen-Gardner’s recognition as one of the most respected heavy/highway construction companies in the state of Arizona.

Dan is a second generation civil engineer born and raised in the Milwaukee, Wisconsin area and holds a B.S. in Civil Engineering from the University of Wisconsin (Madison, WI). Dan is married and has two boys, Jack and Max.


Kevin Nunez crop for website 01-07-19.jpg

KEVIN NUNEZ
Vice President, Chief Estimator

Kevin joined the Achen-Gardner team in August 1994. His commitment to increasing his knowledge and experience, as well as his dedication to Achen-Gardner’s pursuit of construction excellence have made him an incredible asset to the company and the construction industry. Kevin’s work ethic and detailed attention to developing Achen-Gardner’s best management practices have allowed the Achen-Gardner team to consistently deliver high-quality award-winning projects for our clients.  

In the construction industry since 1989, Kevin’s experience includes estimating, construction engineering, design engineering, and project management. His direct involvement and supervision of field personnel has enabled him to successfully complete projects on time and within budget. His many responsibilities include supervising contract negotiations and administration, providing technical support to field supervision, and maintaining a key role in insuring the accurate accounting of productions, quantities, and associated costs.

Kevin was born and raised in Arizona and holds a B.S. in Construction Management from Arizona State University (Tempe, AZ).  Kevin is married and has 3 children, Cody, Cailey, and Cory.