This investigation resulted in a barrier wall system (Fig. 1
and 2) in which barrier walls of 3 m (10 ft) segments were
fabricated in the precast concrete plant and shipped to the
bridge site. The proposed barrier wall was intended to meet
the criteria for Canadian Highway Bridge Design Code
(CHBDC)4
performance level 3 (PL-3), representing the
majority of bridge barriers in Ontario highways. The geometry
of the proposed PL-3 precast concrete barrier wall
was similar to the cast-in-place concrete barrier specified