In two days Rifenburg Construction Inc. installed 18 pieces of twin cell 20′ x 9′ x 4′-8.5″ precast concrete box culvert sections along with six sections of wing walls and aprons. Shear key joints were used for wing wall and apron connections while a shiplap joint was used for culvert joint connections. Cut-off walls were drilled in the field through the 2″ diameter sleeves and into the apron slaps and grouted with #5 epoxy rebar pins for cut-off wall to slab connection.
