2004 English Special Provisions to Item 512 - Portable Concrete Traffic Barrier (All)

SP512-004  PDF  RTF   - For project 6273-79-001 in Orange County. For this project, Item 512, “Portable Concrete Traffic Barrier,” of the Standard Specifications, is hereby amended with respect to the clauses cited below, and no other clauses or requirements of this Item are waived or changed hereby. One-Time Use.
SP512-003  PDF  RTF   - For project 6264-63-001 in Dallas County. New bid item and description to allow payment for the alignment of concrete traffic barrier. One-Time Use.
SP512-002  PDF  RTF   - This special provision increases the minimum Class F fly ash replacement percentage to 25% for mix design Option 1 and disallows mix design Options 6, 7, and 8. Required for all projects using Item 512 ''Portable Concrete Traffic Barrier'', beginning with the September 2009 letting. Replaces SP512-001 . (Change Memo: de-31-09). Statewide Use.
SP512-001  PDF  RTF   - States that air-entrained concrete will not be required in precast concrete traffic barrier, unless otherwise shown on the plans. Required on all projects with Item 512 beginning with the March 2006 letting. Replaced by SP512-002 . (Change Memo: de-55-05). Statewide Use.

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