Three images of the artistic sculpture by artist David Black titled "Lift-Off."

Schaefer performed a structural analysis of a 19-foot high, 39- by 29-foot David Black sculpture on the southwest corner of the City Vista Plaza at Fifth and K Streets in Washington, D.C. Lift Off is a transparent, canopy-like structure that spreads out while not interrupting pedestrian movement. This sculpture is constructed of welded 3/8-inch by 1/2-inch aluminum plate and designed with a small floodlight placed at the end of each of the four cross-beams to illuminate the light yellow origami-inspired scallop forms. A small, double seat is to be placed at the central base inviting pedestrians to relax, visually explore the sculpture or use as a photo backdrop. The sculpture is designed in coordination with the paving pattern, the planned outdoor restaurant seating and pedestrian movement patterns across the plaza and along the sidewalks.