1 | March 2020

William D. Bast, P.E., S.E., SECB Principal

Summary With over 34 years of structural experience, Mr. Bast heads ’s Renewal practice in Chicago, Illinois. His projects include building renovations and restorations, building façade evaluations and repair programs, due diligence and building assessments, failure investigations, litigation support and peer reviews. As a Principal, Mr. Bast works closely with owners, building managers, attorneys, architects and contractors, as well as internal project managers and engineers, to ensure the timeliness and quality of the projects he oversees. He joined Thornton Tomasetti in 1998.

Areas of Technical Expertise Include Select Project Experience

•Forensic Forensic Structural Engineering •Structural Engineering Summit Country Day School , Cincinnati, OH. Forensic and •Building Envelope Evaluation and Repair causation services associated with the partial collapse of an •Peer Reviews 1890 school building. 1720 Oak Avenue , Evanston, IL. Failure analysis of a four-story Education partial collapse of a garage structure for a mixed-use complex. •M.S.C.E., 1983, Lehigh University James R. Thompson Center, Granite Cladding Investigation , •B.S.C.E., 1979, Lehigh University Chicago, IL. Investigation of a three-story, granite-clad pedestrian arcade after a granite panel detached and fell into the street. Registrations and Certifi cations Structural Engineering •Licensed Professional Engineer (Arkansas, Florida, Illinois, Indiana, Iowa, Kentucky, Maryland, Michigan, Missouri, Ohio, 540 W. Madison , Chicago, IL. Structural design of an award- Pennsylvania, Wisconsin) winning, 30-story offi ce building. •Licensed Structural Engineer (Illinois) The Peninsula Hotel, 108 E. Superior Street , Chicago, IL. Structural design of a 17-story luxury hotel built atop an existing •Structural Engineering Board Certifi cation four-story retail building. •Scaffold Safety Training, 1926 Certifi cate of Completion School of the Art Institute of Chicago, Residences and Gene •Certifi ed Structural Peer Reviewer (Chicago) Siskel Film Center , Chicago, IL. Structural engineering of an award-winning 17-story renovation. Professional Activities Navy Pier Reconstruction Project , Chicago, IL.* Design of new •National Council of Structural Engineers Associations (NCSEA) building and parking structures between the headhouse and •Structural Engineers Foundation ballroom.

•Structural Engineers Association of Illinois (SEAOI) Building Envelope Evaluation and Repair •American Society of Civil Engineers (ASCE) One Indiana Square, Indianapolis, IN. Emergency response and Honors and Awards stabilization for façade damage to a 36-story offi ce building. Metropolitan Tower, 310 S. Michigan Avenue •Meritorious PublicationWebsite Award, “Wind-induced Curtain Wall Sample, Chicago, IL. Damage and Moment Resisting Frame Performance: The Façade repairs and major structural renovations. Emergency Response, Stabilization, Analysis, Testing and Old Republic, 307 N. Michigan Avenue , Chicago, IL. Cornice Retrofi t of a 36-Story Urban High-Rise,” Structural Engineers and façade repairs for a 24-story, terracotta-clad building. Association of Illinois, 2010 Peer Reviews •Distinguished Service Award, Structural Engineers Association of Illinois, 2005 Museum of and Industry, U-505 Submarine Exhibit , Chicago, IL. Peer review for the moving of a 900-ton submarine. •Meritorious Publication Award, “Measured Shortening and its Effects in a Chicago High-Rise Building,” Structural Engineers Lofts at River East Arts Center, 401 E. Illinois Street , Chicago, Association of Illinois, 2004 IL. Peer review of a 1900s building renovation. * Denotes work performed with previous employer. 2 | March 2020

William D. Bast, P.E., S.E., SECB Principal

Sworn Testimony Trial, Board of Education, Calumet City School District 155 vs. Great Lakes Soil and Environmental Consultants, Circuit Court of Deposition, William and Leslie Stevens vs. Blank & Baker Cook County, IL, regarding an investigation dispute. September Construction Management, LLC, regarding a collapse of a 17, 2014. residential garage under construction in Lake Forest, IL in 2013. February 18, 2020. Bench Trial, Muller Acura vs. Walker Construction Company, Lake Superior Court, Hammond, IN, regarding a slab-on-grade Deposition, MSA North Developer, LLC vs. Midwest construction dispute. August 15, 2014. Constructors LLC and Ambassador Steel Fabrication, Inc., regarding a post-tensioning blowout that occurred at the podium Deposition, Board of Directors of Metropolis Condominium level of a mid-rise structure in Indianapolis, Indiana. September Association vs. Metropolis, LLC et al., litigation support services 17, 2019. on behalf of Thornton Tomasetti in a lawsuit between the condominium association and the developer. May 16, 2013. Deposition, Nestle/Gerber vs. Alberici and SSOE, regarding (Party) alleged standard of care issues involving the structural concrete walls and hygienic fi nishes desired at the food processing plant Deposition, Manuel Salazar, et al. vs. Thornton Tomasetti, Inc., in Ft. Smith, Arkansas. March 5, 2019 et al., regarding a lawsuit brought by an injured worker. February 27, 2013. (Party) Deposition, Friendship Village/Bridgewater Place vs. Lendlease, Deposition, Illinois River Energy, LLC vs. Fagen et al., regarding regarding alleged construction defects in the construction alleged defects in the design and construction of two 140-foot- of the building envelope for a fi ve-story retirement village in tall reinforced concrete silos and interstice spaces. January 9, Schaumburg, Illinois. August 21, 2018. 2013. Deposition, Casto et al. vs. U.S. Steel Corporation, regarding Trial and Deposition, Wosinski, et al. vs. Advance Cast Stone, the collapse of a downcomer at USS’ Great Lakes Works, and et al., regarding a precast concrete façade panel that fell, the ensuing death of a crane operator involved in cleanup from resulting in a fatality. November 15 and 18, 2013; June 12-13, the incident. September 26, 2017. 2012. Deposition and Mediation, 111 S. Wacker Drive, Chicago, IL. Deposition, Hospital vs. General Contractor, Construction Investigation and repair of a cable net-wall system that resulted Manager, and various Subcontractors, regarding alleged in litigation. April 5 and 6, 2017; June 9, 2016. construction defects in the batt insulation, vapor retarder, and Deposition, Hussar, et al. vs. Brewster, et al., regarding the gypsum wallboard of the GFRC-clad exterior wall assembly. collapse of the water tank at 2800 North Pine Grove Avenue in March 7, 2012. (contains confi dential information). Chicago, IL. November 18, 2016. (Party) . Deposition, Ryszard Krzak vs. 1001 West Van Buren, LLC, et al., regarding a jobsite injury at a construction site. October 28, Deposition, 111 South Wacker LLC vs. Lend Lease Construction, 2010. (Party) Inc. et al., Chicago, IL, regarding the investigation and repair of a cable net-wall system. June 9, 2016. Deposition, Central Mall Partners, L.P. et al. vs. Duro-Last, Inc. et al., regarding the analysis of a series of partial roof collapses. Deposition, Nishna Productions vs. JFSCO et al., Red Oak, IA, December 16, 2009. regarding dispute alleging errors and omissions and construction defects associated with a design/build project. February 18, Litigation 2016. James Missig vs. Atlas Restoration, LLC, Channahon, IL, Trial and Deposition, Williams Brothers vs. Heartland regarding failures to retaining walls and foundations at a single Community College, Normal, IL. Litigation support services on family residential property situated on a river slope. behalf of the contractor who, during construction of the steel 1661 Burr Oak Drive , Libertyville, IL, response to complaints frame of the new fi tness and recreation center, encountered against a subcontractor regarding the work performed at the various problems with the fi t-up and stability of the structural property. steel that eventuallyWebsite led to a cease work agreement, delay Sample of construction, and consequential structural retrofi ts for the 461-467 Harlem Avenue , Oak Park, IL, regarding a 14-story, building. February 15, 16 and 21, 2017; August 25, 2015. precast construction mixed-use building. 1585 Waukegan Road , Waukegan, IL, regarding a joist supplier Deposition, Darren Kasparian et al. vs. Draper and Kramer, Inc., and partial roof collapse in July 2003. regarding worker injury at a jobsite at Two Wheaton Center in Wheaton, IL. July 22, 2015. 7652 W. 63rd Street , Summit, IL, regarding an existing bakery building and an addition. Deposition, Glenwood Plaza et al. vs. Village of Glenwood, IL et al., dispute regarding condition of the property and an order for Ambassador Steel Fabrication, LLC vs. C.G. Schmidt, Inc. et demolition. November 13, 2014. al., Milwaukee, WI, regarding alleged defective reinforcing bar fabrication and installation. 3 | March 2020

William D. Bast, P.E., S.E., SECB Principal

Aquascape Design Partial Building Collapse , St. Charles, IL, Omaha Park Eight Garage , Omaha, NE, regarding an injury regarding the collapse of a 700-foot by 50-foot sloped green roof. caused by a precast concrete wall that fell at a jobsite, including Art Institute of Chicago, Modern Wing vs. ARUP , Chicago, IL, a preliminary analysis of available materials and development of regarding the owner’s delay claim on structural and curtain wall recommendations. issues. Rudolph Sustek et al. vs. Jacobs Engineering et al., Chicago, Bean/Johnson et al. vs. Bauer Latoza et al., Chicago, IL, IL, regarding injury to a resident allegedly related to the regarding a fatality due to a fallen piece of stone from a church construction of new gas service lines. façade. Santoyo vs. Burns & McDonnell, et al., Chicago, IL, regarding Black Diamond Marine Equipment, Inc. et al. vs. Navy Pier, worker death that resulted from the collapse of a steel girder Inc., Chicago, IL, regarding an incident at Navy Pier on October during reconstruction of the Jane Addams . 31, 2014 in which a barge broke loose from its moorings and Schaumburg Chrysler-Plymouth, Chicago, IL, regarding damaged the pier. support services on behalf of the property owner in its lawsuit Blue Moon Lofts, LLC vs. Hartshorne + Plunkard, Ltd. , against the lessee, Chrysler Realty Corporation. Chicago, IL, regarding alleged design defects resulting in a Steven Anderson vs. Wiss, Janney, Elstner Associates, Inc. , reduced number of condominium units offered for sale. Chicago, IL, regarding support services on behalf of the engineer Brewster Creek vs. Aristeo Construction et al., Bartlett, of record involving a personal injury at a condominium garage IL, regarding support services provided on behalf of Aristeo that had been examined by the engineer of record for the Construction regarding cracking of the slab-on-grade at the Dania purposes of identifying necessary repairs. Furniture warehouse. University Stadium Investigation , South Bend, IN, regarding Chicago Police Headquarters, 3510 S. Michigan Avenue , the defense of the architect / engineer of record for the 1997 Chicago, IL, regarding support for the Public Building stadium addition. Sophisticated analyses were performed on the Commission of Chicago that led to the development and seating bowl addition, which included fi nite element analyses production of repair documents and the execution of subsequent under gravity and wind conditions. repairs to the precast concrete façade panels. Von Humboldt Elementary School, Chicago, IL, regarding Colin Powell Middle School , Chicago, IL, regarding support support services on behalf of the structural engineer. services for a steel claim. Walsh Construction vs. Public Building Commission of Georgia Pacifi c Triad Facility , University Park, IL, regarding Chicago, Chicago, IL, regarding a dispute over the governing damages to a prefabricated metal building structure. steel design code for the William Jones College Preparatory High School. Greenfi elds of Geneva vs. Thorson Baker, et al., Geneva, IL, regarding cracked PVC waste and vent lines. Wample Residence, Lake Villa, IL, regarding a dispute arising from foundation underpinning work. Haymarket Landing, Eau Claire, WI, regarding a dispute about the failure of a river wall retaining structure. Alternative Dispute Resolution I-80 Ramp Collapse, Lansing, IL, regarding the collapse of the 1827 N. Fremont , Chicago, IL. Litigation support services I-294 Ramp over the I-80 during steel erection. provided on behalf of the design architect regarding disputes Indiana State Fair Commission Collapse Incident during construction concerning the strength, stability and Investigation and Report , Indianapolis, IN, regarding developing defl ection / settlement of a wood-framed four-story residence. an independent cause and origin opinion for the collapse of a Buresh Building Systems, Inc., Peru, IL. Dispute arising from ground-supported temporary entertainment rigging structure. the partial collapse of a catwalk structure. ITW Paslode, Elgin, IL, regarding dispute about cracked slabs and the warehouse space load capacity provided by the slab-on- Papers, Publications and Presentations grade construction.Website Sample “Dramatic Production”, ASCE magazine, James Johnson, Jr. et al. vs. Alliance Corporation, November 2018 (Co-Author) Whitesburg, KY, regarding worker injury resulting in litigation. “Leadership Opportunities in our Offi ces, in our Associations, Kelvyn Park High School , Chicago, IL, regarding support and in the Public Sector”, STRUCTURE magazine, June 2016 services in connection with a personal injury claim. “Worker Injury”, NCSEA Winter Leadership Forum, San Diego, Navy Pier Barge Damage, Chicago, IL, regarding subrogation CA, March 11, 2016 (Presenter) claim involving damage to the pier from a moored barge in October 2014. 4 | March 2020

William D. Bast, P.E., S.E., SECB Principal

“Anthony J. Celebrezze Federal Building Façade Renovation and “High-Tech High Rise,” Modern Steel Construction, July 2005 Repairs”, 2015 AEI Conference, Milwaukee, WI, March 25, 2015 (Co-author) (Presenter) “A Case Study in Structural Renovation and Masonry “Three Diverse Renovation / Adaptive Re-Use Projects,” NCSEA Restoration,” 10th Canadian Masonry Symposium, Banff, Alberta, Annual Conference, New Orleans, LA, September 18, 2014 Canada, June 2005 (Co-presenter) (Presenter) “Case Studies of Recent Building Façade Repairs, Renovations “Specialty Structural Engineering,” SEAOI Webinar, July 15, 2014 and Failures in the United States,” International Symposium on (Presenter) Inspection and Reinforcement to Building, Chongqing, China, November 2004 (Presenter) “Experience as the Expert Witness,” Oklahoma Structural Engineers Association (OSEA) Fall Conference, Stillwater, OK, “Supporting Chicago’s Architecture: Structural Engineering of October 2012 (Presenter) Recent Local Projects,” AIA 2004 National Convention, Chicago, IL, June 2004 (Moderator) “The Adaptive Reuse of ,” SOICA Summer Event, June 13, 2012 (Presenter) “Measured Shortening and Its Effects in a Chicago High-Rise Building,” ASCE’s : Proceedings of the Third “A Structural Facelift: Blast Resistant Over-Clad of 33-Story 1967 Congress, 2003 (Co-author) Federal Building,” STRUCTURE Magazine, June 2012 (Co-author) “Chicago Façade and Scaffold Ordinances, Recent Changes, “Forensic Information Model (FIM) – A New Approach for Failure Developments and Scaffolding Provisions,” ICRI Chicago Tri- Investigations,” 2012 ASCE Structures Congress, Chicago, IL, States Chapter Meeting, February 2003 (Presenter) March 31, 2012 (Presenter) “NCSEA Tenth Annual Conference Excerpts,” SEAOI Bulletin and “The Structural Engineer and Construction Disputes,” SEAOI, STRUCTURE Magazine, November 2002 (Author) Chicago, IL, February 7, 2012 (Presenter) “Better Integrating Structural Engineers with the Design and “Specialty Structural Engineering-What I learned After College,” Construction Team,” Illinois RED Magazine, Summer 2002 NCSEA Annual Conference, Oklahoma City, OK, October 21, (Author) 2011 (Presenter) “The Peninsula Chicago,” STRUCTURE Magazine, February 2002 “Second Opinion Leads to Substantial Savings in Evaluation and (Author) Repair of Marble Façade,” STRUCTURE Magazine, March 2010 (Co-author) “When Aging Façades Crumble,” STRUCTURE Magazine, October 2001 (Author) “Changes in the Chicago Façade Ordinance,” BOMA Chicago, March 2008 (Presenter) “February 2001 SEAOI President’s Message, Hyatt Regency Collapse 20 Years Later,” Licensed Architect, Spring 2001 “Knowing When to Call a Structural Engineer or Architect,” (Author) NFMT 2008, Baltimore, MD, March 2008 (Presenter) “A Short History of Falling Terra Cotta,” Real Estate Chicago, “Knowing When to Call a Structural Engineer or Architect,” June 2001 (Author) Facilities Midwest Conference and Expo, September 2007 (Presenter) “Current Structural Renovation Projects in Chicago, Illinois,” Licensed Architect, Winter 2001 (Author) “Forensic Engineering - Guidelines and Case Studies,” 2007 ASCE Structural Group Lecture Series, Chicago, IL, March 2007 “Work of Art,” Modern Steel Construction, January 2001 (Author) (Co-presenter) “Preventing Failures by Inspection of Chicago Building Façades,” “A Good Move: U505,” Civil Engineering, November 2006 ASCE’s 2nd Forensic Engineering Conference, San Juan, Puerto (Co-author) Website Rico,Sample May 2000 (Presenter) “Bolt Failure at Gabled Roof of a 42-story Building,” ASCE Forensic Conference, October 2006 (Co-author and Presenter) Contact “ASCE Guidelines for Forensic Engineering: Case Study of Partial William D. Bast Building Collapse,” Structural Engineers’ Conference & Expo, 330 N. Wabash Avenue, Suite 1500 Chicago, IL, November 2005 (Co-author and Presenter) Chicago, IL 60611 “Serviceability Load Test of a Reinforced Concrete Flat Plate 312.596.2000 Retrofi tted with Drop Panels,” ACI Convention: Spice Up Your [email protected] Concrete, Kansas City, MO, November 2005 (Co-author and www.ThorntonTomasetti.com Presenter)