Numbers and Titles



31 40 00 Shoring and Underpinning
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Includesunderpinning, needling, grouting, and other methods of strengthening or shoring structures and earth to protect and stabilize existing construction.
See31 50 00 for excavation support and protection.
31 41 00Shoring
31 43 00Concrete Raising
31 45 00Vibroflotation and Densification
31 46 00Needle Beams
31 48 00Underpinning