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  2. Manassas Water Tower - Wikipedia

    en.wikipedia.org/wiki/Manassas_Water_Tower

    The Manassas Water Tower is a historic water storage facility at 9000 Quarry Street in Manassas, Virginia. It is a steel structure 147 feet (45 m) in height, and is typical in style for its 1914 construction date, with a steel trestle supporting a tank with a hemispherical base and conical roof. It has a capacity of 75,000 US gallons (280,000 L ...

  3. Water tower - Wikipedia

    en.wikipedia.org/wiki/Water_tower

    A water tower is an elevated structure [1] supporting a water tank constructed at a height sufficient to pressurize a distribution system for potable water, and to provide emergency storage for fire protection. [2] Water towers often operate in conjunction with underground or surface service reservoirs, which store treated water close to where ...

  4. International scale of river difficulty - Wikipedia

    en.wikipedia.org/wiki/International_scale_of...

    Class III rapid at Canolfan Tryweryn, Wales. The international scale of river difficulty is an American system used to rate the difficulty of navigating a stretch of river, or a single (sometimes whitewater) rapid. [1] The scale was created by the American Whitewater Association to evaluate rivers throughout the world, hence international in ...

  5. Whitewater - Wikipedia

    en.wikipedia.org/wiki/Whitewater

    The most widely used [citation needed] grading system is the International Scale of River Difficulty, where whitewater (either an individual rapid, or the entire river) is classed in six categories from class I (the easiest and safest) to class VI (the most difficult and most dangerous). The grade reflects both the technical difficulty and the ...

  6. U.S. National Whitewater Center - Wikipedia

    en.wikipedia.org/wiki/U.S._National_Whitewater...

    Long: 19 m 3 /s (670 cu ft/s) center.whitewater.org. The U.S. National Whitewater Center (USNWC) is a not-for-profit outdoor recreation and athletic training facility for whitewater rafting, kayaking, canoeing, rock climbing, mountain biking, hiking and ice skating which opened to the public in 2006. [1] The Center is located in Charlotte ...

  7. List of whitewater rivers - Wikipedia

    en.wikipedia.org/wiki/List_of_whitewater_rivers

    Patuxent River, Maryland, Class I-IV. Potomac River, West Virginia/Maryland/Virginia, Class II-V+. This river begins in the Appalachian Mountains and runs to the sea, a distance of 367 miles (approx 591 km.) This river forms the border between Northern Virginia and the District of Columbia. There are two major whitewater sections.

  8. Whitewater Canal - Wikipedia

    en.wikipedia.org/wiki/Whitewater_Canal

    Whitewater Canal. Coordinates: 39°27′33″N 85°06′34″W. Whitewater Canal (Metamora, Indiana) The Whitewater Canal, which was built between 1836 (188 years ago) and 1847 (177 years ago), spanned a distance of 76 miles (122 km) and stretched from Lawrenceburg, Indiana on the Ohio River to Hagerstown, Indiana near the West Fork of the ...

  9. Water pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Water_pollution_in_the...

    Topsoil runoff from farm, central Iowa (2011). Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and industry, although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1]

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