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RIB-BAK System Modified RIB-BAK System U.S. High-Tension System

FHWA Letters                    Back

Letter No.

Date

Company

Description

Letter PDF

Link to FHWA

       

View PDF acceptance letter on Single to triple 3 ppf and single or dual 4 ppf Rib-Bak post installations with ground splice. ** (PDF, 149 Kb).(149 Kb)

View Text acceptance letter on Single to triple 3 ppf and single or dual 4 ppf Rib-Bak post installations with ground splice. **.
       

View PDF acceptance letter on Clarifies grade of steel to be “SP-80(80 Kb)

View Text acceptance letter on Clarifies grade of steel to be “SP-80
       

View PDF acceptance letter on Permit threaded spacers to lap splice design (PDF, 81 Kb).(81 Kb)

View Text acceptance letter on Permit threaded spacers to lap splice design.
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