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  1. 1
    NCHRP report 350 compliance test 5-12 of the 1.07-m vertical wall bridge railing.
    by Alberson, Dean C.
    Published 1997
    Subjects: “...Roads United States Safety measures....”
    Government Document Book
  2. 2
    Testing and evaluation of the W-beam transition (on steel posts with timber blockouts) to the vertical flared back concrete bridge parapet.
    by Mak, King K.
    Published 1997
    Subjects: “...Roads Guard fences Testing....”
    Government Document Microform Book
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