A precast concrete beam features three number eight top and bottom longitudinal reinforcing bars enclosed by number four stirrups spaced at six inches on center. The structural member is dimensioned relative to a level reference line and a center grid line.
LEVEL 02 PC.4 3" 4" 9" 1'-0" 1'-0" LEVEL 2" 3-#8 TOP & BOT. #4@6"o/c STIRRUPS
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