Kinzua Bridge State Park is a 329acre Pennsylvania state park near Mount Jewett, in Hamlin and Keating Townships, McKean County, Pennsylvania in the United States. The park lies between U.S. Route 6 and Pennsylvania Route 59, along State Route 3011 just east of the Allegheny National Forest.Kinzua Bridge State Park was chosen by the Pennsylvania Department of Conservation and Natural Resources (DCNR) and its Bureau of Parks as one of "25 Must-See Pennsylvania State Parks".Kinzua BridgeThe park is noted as the site of the Kinzua Bridge spanning Kinzua Creek, original bridge built in 1882, subsequent bridge built in 1900 and destroyed in 2003 by a tornado. At the time it was built, the original (c. 1882) Kinzua Bridge was the highest, at, and longest, at, railway bridge in the world, given the distinction of being listed as a Historic Civil Engineering Landmark (the listing was in 1977). The Erie Railroad company originally owned and operated the bridge.