Paul M. Bass Administrative Complex

CDI, acting as Explosives Subcontractor to Main Demolition Contractor, Lindamood, Inc. of Irving, Texas, performs the design of, preparation for and explosives felling of three buildings located at the University of Texas Southwestern (UTSW) Medical Center in Dallas, Texas, in a single explosives sequence, on October 1, 2023. Once environmental remediation was completed, Lindamood conventionally demolished 183,000 sq ft of low-rise mall structures around the towers in the complex to isolate the three tower structures for explosives felling by CDI. Using a non-electric initiation system given the proximity of Dallas Love Field and numerous UTSW radio transmitters, Tower #1, a 200,243 sq ft, 13-story, welded steel framed office building, Tower #2, a 601,600 sq ft, 19-story, heavily reinforced concrete office building, and Tower #3, a 251,200 sq ft, 14-story, welded steel framed office building, were felled in a single implosion sequence choregraphed in Tower 3, 2, 1 sequence to separate and minimize noise levels from the detonation of explosives and mitigate vibration generated by the fall of debris to grade. A total of 616 lbs. of explosives were detonated in all three structures over a 24 second period to fell the towers. Third-party noise and vibration monitoring documented levels well below allowable limits for the sensitive University of Texas medical facilities surrounding the Paul M. Bass site. CDI’s explosives demolition services brought a total of 45,720 tons of debris from the 1,236,043 sq ft of structures to grade where Lindamood could put its entire fleet of excavators to work, downsizing and separating concrete from salvageable metals, rather than having to wait on a lesser quantity of debris generated by Lindamood’s high-reach excavators.