paragraph_text: Bergstresser / Dietz Bridge, the last remaining covered bridge in Franklin County, Ohio, USA, is located within the village limits of Canal Winchester, Ohio in southeastern Franklin County. The wooden bridge crosses Little Walnut Creek, which is a tributary of the Scioto River. Although the bridge is in serviceable condition, it is only open to foot traffic.

paragraph_text: The Rock Island Bridge in Kansas City, Kansas is a rail crossing of the Kansas River. It connects the Armourdale, Kansas to West Bottoms. It is a truss bridge that is closed to traffic.

paragraph_text: The Tongji Bridge (traditional Chinese: 通濟橋, simplified Chinese: 通济桥, pinyin: Tōng Jì Qiáo), is a famous stone arch bridge located in Yuyao, Ningbo, Zhejiang Province. ""Tongji Bridge"" (""Tong"" means transport/transportantion, ""Ji"" means aid or cross a river) is a very common name for bridges in ancient China.

paragraph_text: The Green Bay Road Bridge is a Pratt pony truss bridge across the Manitowoc River in Manitowoc Rapids. The bridge was built in 1887 by the Wisconsin Bridge and Iron Company and was the second river crossing built at its location. Originally a road bridge, the bridge is now used for a bicycle and walking trail; it is in good condition and is considered a historically significant example of a pony truss road bridge. The bridge was added to the National Register of Historic Places on August 3, 1998.

paragraph_text: Waterloo Bridge () is a road and foot traffic bridge crossing the River Thames in London, between Blackfriars Bridge and Hungerford Bridge. Its name commemorates the victory of the British, Dutch and Prussians at the Battle of Waterloo in 1815. Thanks to its location at a strategic bend in the river, the views from the bridge (of Westminster, the South Bank and the London Eye to the west, and of the City of London and Canary Wharf to the east) are widely held to be the finest from any spot in London at ground level.

paragraph_text: Langs (also, Lang Crossing) is a former settlement in Nevada County, California. Situated at an elevation of above sea level, it still appeared on maps as of 1902. Langs is located on the South Yuba River, west of Yuba Gap.

paragraph_text: The John Basilone Veterans Memorial Bridge is a bridge in New Jersey that crosses the Raritan River. The bridge was built in 2005 to replace the smaller Nevius Street Bridge built in 1886. The Nevius Street Bridge today functions as a pedestrian bridge. The bridge connects First Avenue and what used to be the short one way block of Lyman Street in Raritan with River Road in Hillsborough. After crossing into Hillsborough, the road curves to meet up with the old alignment with the Nevius Street Bridge. The bridge is named for local World War II hero, John Basilone. The bridge has a pedestrian tunnel underneath its northern approach, as part of the Raritan River Greenway.

paragraph_text: The Founders Bridge is one of the three highway bridges over the Connecticut River in Hartford, Connecticut. The steel stringer bridge carries the Route 2 expressway, and also crosses over Interstate 91 (which runs parallel to the river). the bridge had an average daily traffic of 29,200.

paragraph_text: The Diwei Bridge is a cable-stayed bridge which crosses the Yangtze River in Chongqing, China. Completed in 2008, it has a main span of . The bridge carries road of traffic between the Jiangjin District south of the Yangtze River and the Dadukou District to the north.

paragraph_text: Conde Balcom McCullough (May 30, 1887 – May 5, 1946) was an American bridge engineer who is primarily known for designing many of Oregon's coastal bridges on U.S. Route 101. The native of South Dakota worked for the Oregon Department of Transportation from 1919 to 1935 and 1937 until 1946. McCullough also was a professor at Oregon State University.

paragraph_text: The Eudora Kaw River Bridge is an automobile and pedestrian crossing of the Kansas River located just north of Eudora, Kansas. A girder bridge, it is the first bridge over the river for almost four miles, as the Highway 2 Bridge is far off to the east.

paragraph_text: The Merchants Bridge, officially the Merchants Memorial Mississippi Rail Bridge, is a rail bridge crossing the Mississippi River between St. Louis, Missouri, and Venice, Illinois. The bridge is owned by the Terminal Railroad Association of St. Louis. It opened in May 1889 and crossed the river north of the Eads Bridge.

paragraph_text: The Hohenzollern Bridge () is a bridge crossing the river Rhine in the German city of Cologne (German: "Köln"). It crosses the Rhine at kilometre 688.5. Originally, the bridge was both a railway and road bridge. However, after its destruction in 1945 and its subsequent reconstruction, it was only accessible to rail and pedestrian traffic.

paragraph_text: The Mapo Bridge crosses the Han River in South Korea and connects the Mapo District and the Yeongdeungpo District in the city of Seoul. The bridge was completed in 1970. Until 1984, the bridge was called Seoul Bridge.

paragraph_text: The Egongyan Bridge is a suspension bridge which crosses the Yangtze River in Chongqing, China. Completed in 2000, it has a main span of . The bridge carries 6 lanes of traffic between the Nan'an District east of the Yangtze River and the Jiulongpo District to the west.

paragraph_text: 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.

paragraph_text: Pont de Vieille-Brioude (Vieille-Brioude Bridge) is located in France, crossing the Allier River. It is a masonry arch bridge with a span of that was built in 1832.

paragraph_text: The Siuslaw River Bridge is a bascule bridge that spans the Siuslaw River on U.S. Route 101 in Florence, Oregon. It was designed by Conde McCullough, built by the Mercer-Fraser Company of Eureka, California, and funded by the Federal Emergency Administration of Public Works (later renamed the Public Works Administration). It opened in 1936.

paragraph_text: Spring Garden Street Bridge is a highway bridge in Philadelphia, Pennsylvania, USA, that crosses the Schuylkill River below Fairmount Dam. It connects West Philadelphia to the Philadelphia Museum of Art and Benjamin Franklin Parkway. It is the fourth bridge at this location.

paragraph_text: The David McCullough Bridge, commonly and historically known as the 16th Street Bridge, is a steel trussed through arch bridge that spans the Allegheny River in Pittsburgh, Pennsylvania.

Question: In what geographical region can the David McCullough Bridge be found?
Answer: Eastern United States