This trench drain assembly is supported by twenty-four inch Unistrut P3356 channels installed in two places at the bottom. The trench is set relative to the finished grade with surrounding backfill and drainage soil conditions. Component GC5 is noted as typical for the installation. Special provisions apply if the trench is being installed in poor soil conditions with a perforated drain.
24" UNISTRUT P3356 (TYP 2 PLCS) FINISHED GRADE IF TRENCH IS BEING INSTALLED IN POOR GC5 (TYP)
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