Question: What part of the country contains the body of water that the West Hickory Bridge crosses?

full_context: Document 1: French Creek (Allegheny River tributary): French Creek (also known as the Venango River) is a tributary of the Allegheny River in northwestern Pennsylvania and western New York in the United States.
Document 2: West Hickory Bridge: The West Hickory Bridge is a girder bridge that carries Pennsylvania Route 127 across the Allegheny River in rural Forest County, Pennsylvania. Spanning the river between Harmony Township and Hickory Township, it is named for the village of West Hickory.
Document 3: Bridge between Monroe and Penn Townships: The Bridge between Monroe and Penn Townships, also known as the Penns Creek Bridge, Camelback Bridge, or Camelback, was a historic bridge located at Monroe Township and Penn Township near Selinsgrove in Snyder County, Pennsylvania. It was a barrel arch bridge built in 1919. It spanned Penns Creek. It was removed in 1994.
Document 4: Tionesta Bridge: The Tionesta Bridge is a girder bridge that carries U.S. Route 62 and Pennsylvania Route 36 across the Allegheny River in rural Forest County, Pennsylvania. The borough of Tionesta on the east bank of the river is connected with an unpopulated section of Tionesta Township on the west bank.
Document 5: Hokes Mill Covered Bridge: Hokes Mill Covered Bridge is a historic covered bridge at Ronceverte, Greenbrier County, West Virginia. It was built between 1897 and 1899, and measures 12 feet wide and 81.6 feet long. It has red board-and-batten siding and a standing seam metal roof. It is one of two remaining covered bridges in Greenbrier County, the other being Herns Mill Covered Bridge.
Document 6: Allegheny River: The Allegheny River (/ ˌæləˈɡeɪni / AL - ə - GAY - nee) is a principal tributary of the Ohio River; it is located in the Eastern United States. The Allegheny River joins with the Monongahela River to form the Ohio River at the ``Point ''of Point State Park in Downtown Pittsburgh, Pennsylvania. The Allegheny River is, by volume, the main headstream of the Ohio River.
Document 7: Pucketa Creek: Pucketa Creek is a tributary of the Allegheny River located in both Allegheny and Westmoreland counties in the U.S. state of Pennsylvania.
Document 8: Cheat River: The Cheat River is a tributary of the Monongahela River in eastern West Virginia and southwestern Pennsylvania in the United States. Via the Ohio River, the Cheat and Monongahela are part of the Mississippi River watershed. Owing to the ruggedness of the surrounding Allegheny Mountains, the Cheat remains largely remote with few settlements or developments along its banks. Its headwaters are in the Cheat-Potomac Ranger District of the Monongahela National Forest.
Document 9: Deer Creek (Allegheny River tributary): Deer Creek is a tributary of the Allegheny River located in both Allegheny and Butler counties in the U.S. state of Pennsylvania.
Document 10: Tidioute Bridge: The Tidioute Bridge is a truss bridge that carries Pennsylvania Route 127 across the Allegheny River between Tidioute and Limestone Township in Warren County, Pennsylvania. PA 127 uses the bridge to reach its terminus at U.S. Route 62.
Document 11: Emlenton Low Level Bridge: The Emlenton Low Level Bridge is a girder bridge that spans the Allegheny River at Emlenton in the U.S state of Pennsylvania. It connects two separate portions of the borough in Venango and Clarion counties. It replaced, an 1883 truss bridge that stood just upstream, which replaced several previous wooden structures; the modern bridge was constructed in 1987. This bridge is dwarfed by its more famous nearby cousin, the 1968 Emlenton Bridge along Interstate 80.
Document 12: Hunter Station Bridge: The Hunter Station Bridge is a truss bridge that carries U.S. Route 62 (US 62) across the Allegheny River in rural Tionesta Township in Forest County, Pennsylvania. The structure was named for a railroad stop on the long defunct Ridgway & Oil City Railroad.
Document 13: Cowanshannock Creek: Cowanshannock Creek (the eastern section is sometimes referred to as the North Branch Cowanshannock Creek) is a tributary of the Allegheny River in Armstrong and Indiana counties, Pennsylvania in the United States.
Document 14: Herr's Island Railroad Bridge: The Herr's Island Railroad Bridge, also known as the West Penn Railroad Bridge, is a truss bridge across the Allegheny River between the Pittsburgh neighborhoods of Troy Hill and Herrs Island (commonly referred to as Washington's Landing).
Document 15: List of crossings of the Monongahela River: This is a complete list of current bridges and other crossings of the Monongahela River starting from Pittsburgh, Pennsylvania, where the river helps to form the headwaters of the Ohio River, and ending in Fairmont, West Virginia, where the West Fork River and Tygart Valley River combine to form the Monongahela.
ground_truth: Eastern United States
sub_queries: West Hickory Bridge >> crosses Answer: Allegheny River
where is Allegheny River located on a map Answer: Eastern United States