Zenas King (1818-1892) was a 19th century bridge builder whose iron bridges gained wide acceptance throughout the country. He developed his tubular bowstring bridge in 1859, patented the design in 1861, renewed the patent in 1867, and founded King Iron Bridge & Manufacturing Company in 1871. Based on an arch’s inherent strength, his design used less raw material than wooden bridges, and its square tubes were simple to fabricate and ship for on-site assembly. His Cleveland-based company built so many patent bowstrings across Ohio that it set a design standard, and his tubular bowstring design helped create widespread enthusiasm for iron bridges. By 1880, his Ohio company was among the nation’s largest manufacturers of highway bridges. This bridge, built in 1879 as part of two spans crossing Loramie Creek near Fort Loramie, is one of two Zenas King bowstring bridges extant in Ohio. After the Great Flood of 1913 severely damaged the bridge’s abutments, it was sold and relocated to a privately owned farm. It was later donated to the City of Sidney, restored, and relocated to Tawawa Park during Sidney’s bicentennial celebration in 2020.