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                Safety Eligibility Letter B-37A
  
  **Hardware Type:**
            Longitudinal Barriers and Bridge Rails
                          **Code:**
            B-37A
                          **Date:**
            11/18/1999
                          **Testing Criteria:**
            NCHRP 350
                          **Manufacturer:**
            K. Mak, TTI
                          **Device Description:**
            Box-Beam Transistions to WY TL-3 and TL-4 Bridge Railings
                          **View PDF:**
            b-37a.pdf (1.74 MB) U.S. DEPARTMENT OF TRANSPORTATION

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