Cirrus Structural Engineering was established in 2010 and is located in the greater Hartford, Connecticut Area.

Located in the greater Hartford, CT area;
serving New England, New York and beyond.

Cirrus is headed by principal Elizabeth Acly, PE, a licensed structural engineer who has been practicing in New England and greater New York for over 10 years.




Elizabeth W. Acly, PE
Principal, Structural Engineer


After almost twenty years in the practice, Beth has a wide variety of experience in the field of structural engineering ranging from historic building restoration to adaptive re-use and renovation of existing buildings to analysis and design of new structures. Beth has significant experience in the analysis of structures, both new and existing, and is proficient in using visual, numerical and computer analysis techniques and modeling analyses. She is practiced in designing and detailing in most modern and historic building materials.





Sergio F. Guindon, EIT
Staff Engineer


Mr. Guindon brings a life-long interest in the history, design, construction, and performance of buildings to the field of structural engineering. As a child growing up in Costa Rica, this interest initially manifested itself in playing legos and building forts with his cousins.


Sergio has experience in the analysis of structures, both new and existing, and is skilled in using visual, numerical and computer analysis techniques and modeling analysis. He has worked with the analysis of a wide range of materials including iron, steel, brick, stone, timber, concrete and terra cotta. He is trained in the assessment of timber grade strength values for both historic and new timbers.



Penny Norris


After stints in civil drafting, graphic design, and paint & decorating sales, Penny found her niche as a structural drafter in 2003. She holds a BS in Art from the University of Southern Maine and an AS in Interior Design from Endicott College. Penny has worked with Beth for over 10 years and shares her interest in the restoration and renovation of historic buildings as well as a passion for history.






Tia Whalen
Office Manager


Tia joined our team in late 2013 while pursing a college degree after separating from the United States Air Force. In addition to her administrative experience she brought values, ingrained after a 13-year military career, of integrity, commitment and accountability. After watching the Cirrus team really listen to their client’s needs and provide customized and modern solutions for the rehabilitation and renovation of many historic structures, Tia has developed an interest in New England’s rich architectural history and has switched gears to pursue training in the construction industry. She currently serves as Cirrus’ office manager and engineering assistant.

Cirrus engineers hold professional registrations in Connecticut, Massachusetts, New Hampshire, New York, Rhode Island and Pennsylvania.

Registered as Women Owned Small Business Enterprise (State of Connecticut).








MS, Structural Engineering
Georgia Institute of Technology,
Atlanta, GA


BS, Civil Engineering
Bucknell University,
Lewisburg, PA

New Hampshire
New York
Rhode Island



MS, Civil and Environmental Engineering
Carnegie Mellon University,
Pittsburgh, PA


BS, Civil Engineering
Carnegie Mellon University,
Pittsburgh, PA

Engineer In Training












BS, Art
University of Southern Maine,
Portland, ME


AS, Interior Design
Endicott College,
Beverly, MA











Information Management Craftsman
United States Air Force