FEBRUARY 2021 1

ZACHARY D. KATES, P.E., LEED AP Principal

Summary Zach Kates joined in 1998 and, for approximately 18 years, specialized in the management, structural analysis and design of complex building structures, including new design of large scale commercial and healthcare projects, and the renovation of existing and historic structures. Since 2010, Zach has focused on growing Thornton Tomasetti’s forensic practice. Currently he leads the forensic practice in Texas. He has performed numerous investigations including damage assessment of existing facilities, cause and origin analysis of building and failures, evaluation of construction defects, and building envelope assessment. He has been involved in emergency response for several building and bridge collapses including stabilization and deconstruction and has performed remedial design for failed structures.

Areas of technical expertise Select project experience • Structural engineering • Forensic Engineering Station Place Building One, Washington, DC. Structural design of the Securities and Exchange Commission’s 1,000,000-square- • Collapse Investigations foot headquarters. The 10-story office building features post- • Building Envelope Investigations tensioned, two-way concrete slabs with 45-foot spans, an anticlastic glass cable-net lobby enclosure, and incorporates Education blast resistant design consistent with General Services • M.S., , 1998, University of Texas Administration security criteria. The project provides direct access to neighboring Union Station via a steel truss pedestrian • B.S., Civil Engineering, 1996, University of Illinois bridge. Registrations and certifications Martin Army Community Hospital, Fort Benning, GA. Structural design of a 745,000-square-foot design-build facility • Licensed Professional Engineer in CA, CO, DE, DC, FL, LA, for the U.S. Army, including a 70-bed hospital, three-story MD, MS, NC, SC, TX, VA, WI concourse and a clinic building. • LEED Accredited Professional The Johns Hopkins Hospital, Bloomberg Children’s Center • Mine Safety Health Administration Part 46 Safety Training and Sheikh Zayed Tower, Baltimore, MD. Structural design of a 1.6-million-square-foot hospital with a 12-story children’s and Professional activities maternal health tower and a 12-story critical care adult tower. • Structural Engineers Association of Metropolitan Washington Reston Station, Building OB1, Reston, VA. Structural design of (SEA-MW), Chairman 2015-2016 an award-winning 15-level, 620,000-square-foot building with • Catholic University of America, Department of Civil noted designer Helmut Jahn that includes post-tensioned, two- Engineering Advisory Board, 2012 way concrete slabs with 15-foot cantilevers, 40-foot spans, and a diagonalized, exposed concrete exoskeleton system. • Architectural Studio Jury Member, University of Maryland School of Architecture, Fall Semester 2006 and 2007 Exploration Tower at Port Canaveral, Cape Canaveral, FL. Structural design of an award-winning seven-story, • Visiting Faculty, Structures 3, Catholic University of America, 22,000-square-foot welcome center located in a high-wind Washington, DC, 2001-2004 region. • Graduate TeachingWebsite Assistant, The University of Texas at Austin, Sample Forensic engineering 1997 Pre-engineered Metal Building Collapse, FL. Structural engineering evaluation to determine the cause and origin of the collapse of a 25,000 sf warehouse structure during construction. FEBRUARY 2021 2

ZACHARY D. KATES, P.E., LEED AP

Ceiling Panel Collapse Investigation, Houston, TX. Performed Building envelope investigations structural engineering evaluation to determine the cause and Hurricane Evaluations for Harvey, Irma, Laura and origin of failure of an architectural panelized ceiling. Michael, mulitple locations. Structural and building envelope Petrochemical Plant Process Unit Foundation Investigation, investigations of various types of commercial, residential, and WI. Performed structural foundation analysis to determine government buildings to determine damage caused by wind, adequacy of process unit foundations following a fire event of a water infiltration, flood, and storm surge as a result of hurricane petrochemical plant. activity in the affected areas. Manufacturing Building Explosion and Collapse Wind and Hail Evaluations, multiple locations. Building Investigation, Monterrey, MX. Performed a structural scope of envelope investigations of various types of commercial and damage assessment and cause and origin investigation of the residential buildings to determine damage caused by wind and explosion in a steel-framed manufacturing building. hail as a result of extreme weather events in the affected areas. Roofing systems evaluated included asphalt shingle, metal tile, Steel Building Collapse Investigation, TX. Performed a metal panel, clay tile, concrete tile, TPO, PVC, EPDM and other structural scope of damage assessment and cause and origin various finish and cladding systems. investigation of the collapse of a long-span, high-bay pre- engineered metal building under construction. Sworn testimony Hospital Explosion Investigation, TX. Performed a structural Deposition experience damage assessment of several buildings on a hospital campus Deposition-scheduled, Dockside Condominium Association vs. subject to blast loads from an explosion. Work involved Weston Insurance Co., Clearwater, FL. Structural and building stabilizing collapsed portions of the structure and forensic envelope scope of damage assessment after hurricane. Sixth evaluation of remaining structural components. Judicial Circuit Court, Pinellas County, FL.. Earthquake Evaluations, Mexico City, MX. Performed damage Multi-Story Concrete Residential Building, Bethesda, MD. assessment of multiple commercial structures affected by the Investigation of existing brick facade to determine extent 2017 Mexico City earthquake. Performed structural analysis of of damage following construction of adjacent new building. lateral force resisting systems to determine compliance with January 2019. current codes and designed seismic retrofits. Masonry Structure Collapse Investigation, Washington, DC. Warehouse Collapse Investigation, Austin, TX. Collapse Investigation to determine cause of masonry wall collapse at a investigation of precast tilt-up structure following Hurricane three-story structure. U.S. District Court, Alexandria, VA. March Harvey. 2016. Fire Evaluations, multiple locations. Performed damage HSU Equity, Inc. v. Round Rock Independent School District. assessment of multiple commercial structures affected by Structural evaluation of school building roof replacement. fire. Work included design of stabilization, recommended Williamson County, 26th Judicial District Court. February 2016. replacement scope, and repair design. Commercial Office Building, Washington, DC. Structural Roof Mezzanine Structural Evaluation, Laurel, MD. Structural investigation of impacts of new construction adjacent to an investigation and load testing of an interstitial mechanical existing building. DC Superior Court. November 2014. mezzanine at a manufacturing plant. Intermodal Transportation Facility, Beckley, WV. Structural South Norfolk Jordan Bridge Construction Collapse, investigation of a project involving standard of care of Chesapeake, VA. Structural investigation of a 5,375-foot-long, construction administration services. U.S. District Court in 35-span, precast segmental bridge to determine the cause and Atlanta, GA. March 2014. origin of the steel truss support system’s collapse. Trial experience Dulles International Airport, Dulles Jet Center Investigation, Dulles, VA. Structural investigation of three pre-engineered Bain and Associates Inc. et al vs. John C Flood of Virginia Inc., metal hangars thatWebsite collapsed during a record-breaking snowfall Alexandria, Sample VA. Structural investigation of an historic wood- in early 2010. framed structure to determine structural impacts of added rooftop mechanical equipment. Alexandria, VA Circuit Court. July 2004. FEBRUARY 2021 3

ZACHARY D. KATES, P.E., LEED AP

Litigation University of Connecticut, Biology / Physics Building Investigation, Storrs, CT, regarding litigation support and Senior Living Facility Construction and Design Defect structural investigation into a claim by the structural steel Investigation, TX. Site Evaluation and structural analysis to subcontractor relating to the cause of construction delays. Work evaluate construction and design defects for multiple, multi- included participation in mediation sessions. story wood framed residential structures. Concrete Tunnel Investigation, TX. Site assessment including Select papers, lectures and publications non-destructive testing and laser scanning of 5 mile long large “Best Practices in Cause and Origin Investigation,” The diameter flood control tunnel. Engineering evaluation of alleged University of Texas Forensic Engineering Conference, Austin, TX, design and construction defects. February 14, 2019 (presenter) Concrete Balcony Investigation, CO. Engineering evaluation “Forensic Engineering: Luck or Skill,” The University of Texas of deflection of concrete balconies on a multi-story residential Forensic Engineering Conference, Austin, TX, February 21, 2018 concrete flat-plate building with proprietary connection. (presenter) Student Housing Construction Defect Investigation, Charlotte, “How Forensic Engineering is Still Influencing New Design,” The NC, regarding litigation support and cause and origin University of Texas Forensic Conference, Austin, TX, February investigation of multiple multi-story, wood-framed buildings to 23, 2017 (presenter) determine the root cause of alleged construction defects in the structural framing. “Investigating a Large Loss: The Dulles Jet Center Collapse,” University of Texas STEER Conference, Austin, TX, September Residential Pool Investigations, Austin and San Antonio, 22, 2016 (presenter) TX, regarding litigation support and structural investigation to evaluate alleged construction defects at residential pool “Five Things I’ve Learned Since Graduation,” SEA-MW Future projects, including evaluation of structural movement of adjacent Engineer’s Forum, Washington, DC, November 20, 2015 structures. (presenter) Site Grading Investigation, Baltimore, MD, regarding litigation “Next Generation Steel,” AISC NASCC Steel Conference, support and civil engineering investigation to evaluate adequacy Nashville, TN, March 26, 2015 (presenter) of design drawings in determine cut and fill volumes for a “Building Up the Fort, Fort Benning Martin Army Community parking lot at a government facility. Hospital,” Modern Steel Construction, February 2014 (co-author) EZ Storage, South Bowie, MD, regarding litigation support and “Sea and Space, Port Canaveral Visitors Center,” Modern Steel structural investigation to determine the cause of concrete slab Construction, October 2013 (co-author) delamination at a 40,000-square-foot storage facility. “The Healing Power of In-Model Review,” AISC Shop Model Home Depot Warehouse, Brooklyn, NY, regarding litigation Review and Approval Workshop, Washington, DC, March 14, support and structural investigation to determine the cause of 2013 (presenter) cracking in a pile-supported two-way concrete structural floor slab at a warehouse facility. Analysis included 3D modeling, “Engineering the NCB,” Johns Hopkins Society of Engineering nondestructive testing by ground-penetrating radar, and Alumni, Baltimore, MD, March 18, 2012 (presenter) evaluation of slab repair techniques. “The Two Towers, Johns Hopkins Hospital New Clinical Building,” Modern Steel Construction, November 2008 (co- Alternative dispute resolution author) Truss Bridge Collapse Investigation and Retrofit/Replacement, “Five Things You Should Know About Structural Engineering,” MS, regarding structural investigation and assessment to Cardozo High School Construction Academy, Washington, DC, determine the cause and origin of the collapse of a steel truss November 28, 2007 (presenter) bridge at a manufacturing facility. Work included retrofit of “Waclaw Zalewski - Shaping Structures,” University of Maryland, existing structures to remain, design of replacement truss, and WebsiteGallery Sample Talk, September 27, 2007 (panel member) presentation at mediation proceedings. 2007 Steer Conference at The University of Texas at Austin, Pedestrian Bridge, Rockville, MD, regarding litigation support March 23, 2007 (presenter) and structural investigation of impacts of steel detailing and sequencing during bridge construction. Work included presentation during mediation proceedings. FEBRUARY 2021 4

ZACHARY D. KATES, P.E., LEED AP

CONTACT

Zachary D. Kates 804 Las Cimas Parkway, Suite 140, Austin, TX 78746 D: 512.580.1753 | M: 202.641.1971 [email protected] www.ThorntonTomasetti.com

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