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The portion of this segment from San Juan Capistrano to Oxnard was added to the state highway system in 1919 as LRN 60.The segment, opened in the late 1920s as part of the Roosevelt Highway, a 1,400-mile road that traced the western margin of the United S
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BUILT TO LAST OVER 50% OF ROBBINS MAIN BEAM TBMS HAVE BEEN USED ON THREE OR MORE PROJECTS MACHINE NAME MB112-124 Built in 1968, this still-operational machine has excavated nearly 30 km (18 mi). MB94-218 Last used in Costa Rica, this TBM has bored over 40
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