An existing concrete grade beam is designated for demolition, along with an attached concrete wall extension below the grade beam. An existing basement wall remains in place adjacent to the excavation. The subgrade and fill below the existing foundation must be laid back at a 45-degree angle or provided with temporary support as required.
215 BASEMENT 0'-5" DEMO (E) 45 BEALE GRADE BEAM (E) CONC WALL EXTENSION BELOW (E) GRADE BEAM, REMOVE WITH (E) GRADE BEAM (E) TOC EL, FV (E) 200 MISSION BASEMENT WALL TO REMAIN LAY BACK (E) FILL BELOW 45 BEALE FDN OR PROVIDE TEMP SUPPORT AS REQ'D. FV (E) FOUNDATION AND SUBGRADE CONDITIONS (E) 200 MISSION LEVEL B2 STRUC
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