
<p>Chris Petteys serves as the fourth CEO in &nbsp;Forell | Elsesser’s six decades but drives the firm in collaboration with the rest of the executive management team. With a collective focus on building upon the firm’s strong reputation for technical leadership in seismic design, growing talent from within, and creating new opportunities and career paths for staff; Chris leads a firm rooted in engineering fundamentals, client service, performance-based design, and sustainable/resilient structures. From his experience leading large, complex structural projects, Chris has proven the effectiveness of his hands-on management style and enjoys interaction with clients and partners.</p>



<p>In his twenty years practicing as a structural engineer, Chris has navigated complex issues with a level head and taken unexpected approaches to successfully solving problems. He has a broad knowledge of all major construction materials for commercial, multi-family housing, and institutional structures; and is recognized for his efficient buildings and constructability of his designs for unique structures in high seismic regions. His more notable projects include the UC Berkeley California Memorial Stadium seismic upgrade and LinkedIn Middlefield Campus. Chris has both a Bachelor’s degree and a Master’s degree from UCLA.</p>



<p>When Chris is not working through creative solutions or managing the firm, he enjoys golfing, skiing, and spending time with his family.</p>



<h6 class="wp-block-heading"><strong>Professional Associations</strong></h6>



<ul class="wp-block-list">
<li>Structural Engineers Association of Northern California (SEAONC) Seismology Committee, Former Chair</li>
</ul>


San Francisco Public Utilities Commission (SFPUC), Biosolids Digester Facilities Project

Longfellow, Life Science Development, Parking Structures, San Diego, CA

SteelWave, The Lab Parking Structure, 4th Street, Berkeley, CA

Kilroy, Oyster Point, Parking Structure

BioMed Realty, Emery Yards, Parking Structure, Building 14

BioMed Realty, Emery Yards, Life Science Development

Masonic Homes-Skilled Nursing Facility, Covina

Jewish Home of San Francisco, Goodman Building

San Francisco Mint, Seismic Evaluation & Seismic Upgrade

Presidio Quartermaster Reach Culvert

Confidential Precast Parking Structure

East Palo Alto Youth Arts and Music Center

UC Merced Downtown Campus

Sacred Heart Academic Arts Building

Peninsula Healthcare District Residential Care Facility for the Elderly

Jewish Home of San Francisco, Frank Residences, and Byer Square

LinkedIn, Middlefield Campus

345 Brannan, Office Complex

LLNL, Building 453 Terascale Simulation Facility

UC Berkeley Jacobs Institute of Design Innovation

UC Berkeley California Memorial Stadium Seismic Upgrade

LLNL, Building 855 High Explosive Ban Saw

LLNL, Building 805 Renovation

LLNL, Building 581 National Ignition Facility Master Plan

LLNL, Building 217 Renovation

Lawrence Livermore National Laboratory, Building 191, HEAF Atrium Addition

Dropbox TI at Brannan Street

Wareham Development, Parking Structure

President and CEO

Christopher Petteys


<p>With the firm since 1984, Mason is a Senior Principal at Forell | Elsesser. One of Mason’s most effective roles at the firm is orchestrating teams of engineers to leverage their varied areas of expertise, and quickly develop solutions to even the most complex problems. He constantly explores solution concepts and ideas that are outside the norm, leading to unexpectedly elegant and efficient solutions–a practice he encourages with those he mentors. Mason has also had success in crossing lines between engineering disciplines and construction processes to improve existing structural engineering methods to the benefit of F/E’s clients.</p>



<p>As a well-known industry leader, Mason is a resource for in-house staff and colleagues. His engineering expertise includes such diverse areas as sustainable concrete mix design, seismic isolation of new and historic buildings, long-span bridge design, and performance-based seismic design of steel structures. He excels at the analysis, testing, and design for unusual projects that fall outside the scope of traditional building codes. In the early 1990’s, he developed specifications and testing requirements that were used for the U.S. Court of Appeals seismic retrofit in San Francisco, the first federally funded seismic isolation project.&nbsp;Mason is&nbsp;a licensed Structural Engineer in California, Florida, Hawaii, Idaho, Oregon and Washington, and licensed Professional Engineer in D.C. Mason earned a Bachelor’s degree in Architectural Engineering from Cal Poly San Luis Obispo and a Master of Engineering degree in Structural Engineering and Structural Mechanics from UC Berkeley.</p>



<p>Mason’s recreational interests include hiking, fly fishing, cinema, metalworking, and carpentry.  He sometimes integrates the latter two interests into his structural engineering practice by building physical models of structures and structural hardware to quickly enhance the clients’ and colleagues’ grasp of complex structural concepts.</p>



<h6 class="wp-block-heading"><strong>Professional Associations</strong></h6>



<ul class="wp-block-list">
<li>University of California Office of the President Seismic Advisory Board (Charter Member, Chair 2017-2022)</li>



<li>Caltrans Seismic Advisory Board</li>



<li>Structural Engineers Association of California (SEAOC), Solar Photovoltaic Systems Seismic Committee, Voting Member</li>



<li>Structural Engineers Association of Northern California (SEAONC), Director (2003-2005); Convention Technical Committee, Former Co-Chair;&nbsp;Program Committee, Former Chair; Subcommittee on Protective Systems;&nbsp;Subcommittee on Non-Building Structures</li>



<li>American Society of Civil Engineers (ASCE)</li>



<li>Earthquake Engineering Research Institute (EERI)</li>



<li>International Association for Bridge &amp; Structural Engineering (IABSE)</li>
</ul>


University of California, Berkeley, Archeology Building

University of California, Berkeley, Hildebrand Hall

University of California, Berkeley, Latimer Hall

Church of Jesus Christ of Latter-day Saints, Salt Lake City Main Temple, Seismic Retrofit

GSA, James R. Browning, U.S. Court of Appeals Building

Laguna Honda Hospital & Rehabilitation Center

PG&E HQ, 245 Market Street Complex

Meta, MPK 20

Utah State Capitol Seismic Retrofit

San Francisco City Hall, Seismic Retrofit

San Francisco 911 Emergency Communications Center

Oakland City Hall Seismic Rehabilitation

Hiram W. Johnson State Office Building + Earl Warren Supreme Court Building

East Bay Municipal Utility District (EBMUD) Mokelumne Aqueduct Seismic Upgrade

JCC, Mono County Courthouse, Mammoth Lakes, CA

San Francisco International Airport Concourse H BART Station

West Cargo Facility

UCSF Mission Bay Arthur & Toni Rembe Rock Hall

UC Berkeley, Sutardja Dai Hall, CITRIS HQ

University of California, Berkeley, Simpson Training Center

UC Berkeley, Blum Center for Developing Economies

UC Berkeley Barker Hall Seismic Upgrade

Stanford University, McMurtry Art & Art History Building

Stanford University, Bass Biology Research Building

Lick-Wilmerding High School, Expansion & Renovation

University of California, Berkeley, Bakar BioEnginuity Hub

UCSF Parnassus Ray & Dagmar Dolby Regeneration Medicine

San Diego Coronado Bay Bridge Seismic Retrofit

SFJAZZ Center

Congregation Beth Sholom

Tulare County (Porterville) Courthouse

SFMTA, Central Subway Chinatown – Rose Pak Station

San Francisco International Airport Rental Car Parking Garage

San Francisco International Airport North & South Public Parking Garages

Berkeley Art Museum & Pacific Film Archive (BAMPFA)

UCSF Parnassus Clinical Sciences Building

Senior Principal

Mason Walters


<p>As a Senior Engineer, Steve works to solve engineering challenges in new construction and seismic retrofit projects by combining his technical skills in structural analysis and design with his ability to visually communicate complex geometries and engineering ideas. With a strong background in computer programming and optimization methodologies from his graduate studies, he especially excels at working with the design and construction team to rapidly assess a large number of scenarios to find the optimal balance of performance, cost, and constructability. Steve received his Bachelor’s degree from Northeastern University and his Master’s from Stanford University.</p>



<p>Constantly seeking adventure, Steve enjoys long-distance bicycling, backpacking and mountaineering in National Parks, riding roller coasters, and trying spicy ethnic foods. In alignment with his structural engineering passion, he also hopes to someday build a network of treehouses in his backyard.</p>



<h6 class="wp-block-heading">Professional Associations</h6>



<ul class="wp-block-list">
<li>Structural Engineers Association of Northern California (SEAONC)</li>



<li>Structural Engineers Association of California (SEAOC)</li>



<li>American Society of Civil Engineers (ASCE)</li>



<li>Earthquake Engineering Research Institute (EERI)</li>



<li>American Institute of Steel Construction (AISC)</li>
</ul>


Nueva School, Arts & Administration Building

Nueva School, Library Addition

Kenneth Hahn, Hall of Administration, Seismic Retrofit

San Francisco State University, George and Judy Marcus Hall for the Liberal and Creative Arts

Meta, MPK 21

Oregon Supreme Court, Modernization and Seismic Retrofit

Senior Engineer

Steve Earl


<p>As an Engineer at Forell | Elsesser, Poly is deeply passionate about structural engineering and exploring innovative ideas to create seismically safe and sustainable communities. Growing up in Greece, a region prone to seismic activity, she possesses a unique perspective on the significance of not only focusing on new construction but also on preserving and retrofitting existing structures of historical and cultural importance.</p>



<p>Poly’s academic journey led her to pursue both her Undergraduate and Master’s degrees at UC Berkeley. There, she actively engaged in various student organizations, like the SEAONC Student Chapter, where she served as co-president.</p>



<p>When Poly is not working, she enjoys traveling, solving puzzles, and playing basketball.</p>



<h6 class="wp-block-heading">Professional Associations</h6>



<ul class="wp-block-list">
<li>Structural Engineers Association of Northern California (SEAONC)</li>
</ul>


Projects

Team

Categories