In my opinion, the Main Avenue Bridge’s wind tight  sandblaster’s/painter’s canvas shroud is more sublime than Christo’ proposed Arky artifice.    For me,  part of beauty is pragmatism.  Look at an eight cylinder crank shaft.  Practical and beautiful.   The sandblaster’s envelope is temporal, but practical - an adjunct to the dirty work of maintaining our infrastructure.  Christo scores zero in that department.