Figure 4-4: Floodproofing commercial structures
Figure 4-4. The illustration above shows methods of floodproofing commercial structures (primarily affecting the lower level), including permanent closure of openings, sealing of cracks with hydraulic cement, placing a valve on the sewer line, thoroseal coating to reduce seepage through the structure's walls, raising utilities above the BFE, properly anchoring underground storage tanks, using steel bulkheads, elevating the loading dock, and using a sump pump and drain to eject seepage.

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