1993 English Special Provisions to Item 556 - PIPE UNDERDRAINS (All)
| SP556-002 | RTF | - Modifies the material requirements for Type 1 and Type 5 pipes. Includes the requirements of 556---001. Districtwide Use. Houston District. | |
| SP556-001 | RTF | - Revises filter material gradings. All projects with Item 556. Statewide Use. | |
| 1993 English Special Provisions by Item (All) |
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