The bridge was designed in 1856 by Richard Osborne, who submitted a pre-construction model to the company. Workers were partially paid with whiskey and pieces of soap, rather than entirely in cash, leading to the structure's unusual nickname.[3][5][6]
The main arch of the bridge spans 40 feet (12 m), with two smaller arches spanning the sidewalks on either side. The courses of the arch were constructed from local brownstone in elliptical curves that follow the angle at which the railroad tracks cross the street. As a result, there is no keystone in the arch.