Updated at 12:36 AM increase font size Lewiston could add public ‘loo’ to downtown location Officials hope the permanent structure would eliminate public urination at city parks and garages and on private property. City officials appeared to favor the “Portland Loo” public bathroom design for a permanent facility in Lewiston. City of Portland, Ore. LEWISTON — The city could install a permanent public restroom in a downtown location later this year if funding is approved by the Lewiston City Council. During a workshop this week, a majority of the council appeared in favor of an option to pursue a permanent public bathroom structure, known as the “Portland Loo,” or a similar style, which have become popular with municipalities.