Stadium construction: Reconstruction of spectator seating. Upper portion is new seating. Left mid-upper is old concrete with seats removed, and backhoe with pavement breaker attachment, demolishing old concrete. Main area is demolished seating base concrete. Right mid-upper is concrete stair stringers, not yet demolished. Backhoe in foreground loads rectangular debris bucket that crane will then raise and dump outside stadium. The Big House, Michigan Stadium, University of Michigan, Ann Arbor, 2004.

Stadium construction: Reconstruction of spectator seating. Upper portion is new seating. Left mid-upper is old concrete with seats removed, and backhoe with pavement breaker attachment, demolishing old concrete. Main area is demolished seating base concrete. Right mid-upper is concrete stair stringers, not yet demolished. Backhoe in foreground loads rectangular debris bucket that crane will then raise and dump outside stadium. The Big House, Michigan Stadium, University of Michigan, Ann Arbor, 2004.