SRL for [prevented]: Steel jackets of a type that may have [prevented] collapse of the columns of a 1.5 - mile stretch of the Nimitz Freeway had been installed on at least a small test section of the double - decker highway
ARG-3: Steel jackets | ARG-M-MOD: may | ARG-1: collapse of the columns of a 1.5 - mile stretch of the Nimitz Freeway