It was to have a minimum span length of , but the spans were of 352 and 380 feet (107 and 116 m). It was built high enough to allow steamboats to pass underneath on their way through the Falls of the Ohio along the Portland Canal; in fact, the bridge was built higher than was required, raising the cost of the bridge by $150,000.
The bridge was intended to have a minimum span length of , but its spans were actually 352 and 380 feet (107 and 116 meters). It was built high enough to allow steamboats to pass underneath the Falls of the Ohio along the Portland Canal, exceeding the required height by $150,000.