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                Safety Eligibility Letter B-55A
  
  **Hardware Type:**
            Longitudinal Barriers and Bridge Rails
                          **Code:**
            B-55A
                          **Date:**
            09/02/1999
                          **Testing Criteria:**
            NCHRP 350
                          **Manufacturer:**
            Alaska Department of Transportation
                          **Device Description:**
            Thrie-Beam Transition to AK Bridge Railing
                          **View PDF:**
            b-55a.pdf (1014.88 KB) U.S. DEPARTMENT OF TRANSPORTATION

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