25-76 - Surfacing LAST AMENDED 12/5/2024 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 In all districts, as indicated, all permitted or required open off-street loading berths shall be surfaced with permeable paving materials, asphaltic or Portland cement concrete, or other hard-surfaced dustless material, at least six inches thick.