Scuppers and waterways

All decks on the ship had a 3" camber, or the center of each deck was 3" higher than the sides to facilitate the run off of water, whether from rain or fire hoses. Streets have a crown in the middle for the same purpose.

All decks on the outer surfaces had a waterway (gutter) down the outer edges. Water ran down the decks to the gutters and there were scuppers (drains) in the gutter to channel the water out a convenient hole. The gutters on the boat deck and A-deck were 7 inches wide, 13" wide on B-deck and 15.5 inch wide on C-deck.

On the upper decks, the drains emptied down pipes hidden along the pillars of the lower promenade decks. The drains and gutters all appear in photos, if you take time to notice them. The decks were washed daily to keep the wood tight and to wash off all the cinders from the funnels. There's no need having all that ash tracked back into the ship.