Ponies standing in makeshift tents beneath a Baltimore City highway overpass are enduring cold winds, standing water and limited grazing space, according to animal advocates.

Dozens of horses used in the city?s tradition of “Arabbing” ? hawking produce from horse-drawn carriages ? have been housed by city officials on a desolate lot beneath the Monroe Street Bridge in southwest Baltimore since Dec. 13. City officials said Wednesday they plan to replace the ramshackle tents with a permanent 28-stall stable on the property, sandwiched between an abandoned railroad and a trash-strewn slope.