To Backfill or Not to Backfill

GEORGE TAMARO: We immediately removed all the equipment working on Liberty Street and began installing wells on the outside of the bathtub to remove as much pressure from the wall as possible. We were undecided on our next step: We needed some lateral support; however, if we put in backfill, the wall might collapse. As we were installing the wells on October 7th and 8th, the decision was thrust upon us: we discovered a five to six inch crack in the street — the wall was moving and we had to take immediate action.

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