Unit 1: Tacoma Narrows Bridge Collapse (1940) | STEM Engineering Disaster

Investigate one of the most famous structural engineering failures in history with this complete 6-page printable STEM Case Study Packet! Designed specifically for middle and high school classrooms, this unit gives students a deep, informative look at the 1940 Tacoma Narrows Bridge Collapse, mechanical resonance, aerodynamic flutter, wind shear forces, structural rigidity, and engineering design ethics. What’s Included in this 6-Page Deep-Dive Packet: Page 1: Historical Case Study & Technical Breakdown – Full historical narrative of "Galloping Gertie," structural dimensions, aerodynamic flutter physics, resonance, and comprehension check questions. Page 2: Day in the Life Scenario Challenge – Students step into the shoes of a Lead Forensic Structural Engineer on November 7, 1940, analyzing real-time wind speeds, torsional twisting angles, and cable tension diagnostics. Page 3: Hands-On Unplugged Simulation & Applied Math – Simple step-by-step math calculations comparing wind pressure force, bridge deck flexibility ratios, and natural frequency oscillation cycles. Page 4: Engineering Ethics & Workplace Dilemma – Cost-saving lightweight girder choices vs. public safety: analyzing budget cuts, aesthetic design pressure, and structural code warnings. Page 5: Redesign Brief & Innovation Lab – Creative blueprinting assignment where students design "Tacoma Replacement-V2," featuring open-web steel trusses, aerodynamic wind vents, and diagonal stay-cables. Page 6: Teacher Answer Key & Scoring Rubric – Complete answer key for all questions and math problems, plus a 10-point grading rubric for the design blueprint.