Kidd's Mills Covered Bridge Historic District

Spanning the Shenango River in Pymatuning Township near Greenville, the Kidd's Mills Covered Bridge was built in 1868 to replace a span destroyed by a flood in February 1867. Rural craftsmen assembled it with fitted joints and hand-hewn timbers, held together by wooden pins and wedges, and its stone abutments support a crossing of 120 feet. The bridge carries an old county road linking State Routes 18 and 58. It is the only covered bridge in Mercer County and, according to the nomination, the only surviving example in the eastern United States of the Smith Cross Truss, patented in 1867 by Robert Smith of Tippecanoe City, Ohio. It was designated a county historical landmark in 1963. Local advocates, including township supervisors and county commissioners, campaigned to save it. Two grist mills once stood on opposite banks of the river; little is recorded about them beyond family accounts linking one to Robert D. Kidd around 1870.