31 48 00
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Underpinning
Includes replacing a structural element’s foundation while the structural element remains in place.
Alternate Terms/Abbreviations micropiles: screw piles.

31 48 00 Underpinning
31 48 13 Underpinning Piers
31 48 19 Bracket Piers
31 48 23 Jacked Piers
31 48 33 Micropile Underpinning