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Cuyahoga River: 590 feet (180 m) 574 feet (175 m) 57 Mammoth Cave: Mammoth Cave Ridge near Park Ridge Road: Pennyroyal Plateau: 925 feet (282 m) Green River: 421 feet (128 m) 504 feet (154 m) 58 Indiana Dunes: Upland Trail, Pinhook Bog Unit [41] 900 feet (270 m) Lake Michigan: 577 feet (176 m) [42] 323 feet (98 m) 59 Gateway Arch
Aloba Arch: Chad, Ennedi-Ouest Region, Ennedi Plateau: 76.2: 250: Rank based on estimated span length only. Precise measurements have yet to be made according to NABS standards. [11] 9: Morning Glory Natural Bridge: United States, Utah, Grandstaff Canyon: 74.1: 243: Span measured by NABS, year not specified. [12] Morning Glory is a natural arch ...
Kolob Arch is a natural arch in Zion National Park, Utah, United States. According to the Natural Arch and Bridge Society (NABS), it is the sixth-longest natural arch in the world. [ 2 ] In 2006, the Society measured the span at 287.4 ± 2 feet (87.6 m), [ 3 ] which is slightly shorter than Landscape Arch in Arches National Park .
Mansfield Road–Michigamme River Bridge; Marble Bridge (Proctor, Vermont) Market Street Bridge (Philadelphia) Market Street Bridge (Wilkes-Barre, Pennsylvania) Memorial Bridge (Massachusetts) Memorial Bridge (Roanoke, Virginia) Merrill P. Barber Bridge; Middlebury Gorge Concrete Arch Bridge; Middlefield–Becket Stone Arch Railroad Bridge District
Arches National Park is a national park of the United States in eastern Utah.The park is adjacent to the Colorado River, 4 mi (6 km) north of Moab, Utah.The park contains more than 2,000 natural sandstone arches, including the well-known Delicate Arch, which constitute the highest density of natural arches in the world.
Crooked River Railroad Bridge: Crooked River: 1911: Oregon: 300 ft (91.4 m) Rex T. Barber Veterans Memorial Bridge: Crooked River: 2000: Oregon: Veterans Memorial Centennial Bridge: Bennett Bay: 1991: Idaho: 296 ft (90.2 m) Hurricane Gulch Bridge: Hurricane Gulch: 1921: Alaska: 295 ft (89.9 m) Crooked River High Bridge: Crooked River: 1926 ...
A natural arch, natural bridge, or (less commonly) rock arch is a natural landform where an arch has formed with an opening underneath. Natural arches commonly form where inland cliffs , coastal cliffs , fins or stacks are subject to erosion from the sea, rivers or weathering ( subaerial processes).
A new bridge would be built immediately next to the original and have a considerably similar visual appearance, but would conform to modern highway codes. The new steel arch bridge was commissioned by the Arizona Department of Transportation and the Federal Highway Administration, and was completed in May 1995, at a cost of $14.7 million. A ...