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  2. Navajo Bridge - Wikipedia

    en.wikipedia.org/wiki/Navajo_Bridge

    The bridge was officially named the Grand Canyon Bridge when it was dedicated on June 14–15, 1929. The state legislature changed the name to Navajo Bridge five years later in 1934. The original bridge was closed to vehicular traffic after the new span opened in 1995. The old span is still open for pedestrian and equestrian use. [1]

  3. Marble Canyon - Wikipedia

    en.wikipedia.org/wiki/Marble_Canyon

    Lee's Ferry is a common launching point for river runners starting their journey through Marble Canyon and then onward to the Grand Canyon. Marble Canyon is also well known for the Navajo Bridge, where US Highway 89A crosses the Colorado River. Marble Canyon marks the western boundary of the Navajo Nation. In 1975, the former Marble Canyon ...

  4. U.S. Route 89A - Wikipedia

    en.wikipedia.org/wiki/U.S._Route_89A

    Navajo Bridges over Marble Canyon along US 89A, June 2009. This was part of mainline US 89 until the construction of Glen Canyon Dam. In 1960, US 89 was moved to a new, more northerly route and the old route became US 89A. The Utah segment of US 89A was first commissioned as part of Utah State Route 11.

  5. Marble Canyon, Arizona - Wikipedia

    en.wikipedia.org/wiki/Marble_Canyon,_Arizona

    Marble Canyon is located on U.S. Route 89A on the north side of the Navajo Bridge, 12 miles (19 km) southwest of Page. Marble Canyon has a post office with ZIP code 86036. [2] Marble Canyon is near Lee's Ferry, the former location of a ferry established by John D. Lee, a Mormon settler.

  6. Bridge Canyon Dam - Wikipedia

    en.wikipedia.org/wiki/Bridge_Canyon_Dam

    One of these dams would be located at the lower end of Marble Canyon and was known as Marble Canyon or Redwall Dam; the other, known as Bridge Canyon Dam or Hualapai Dam, would be situated in Bridge Canyon in Lower Granite Gorge. The two dams would generate a combined 12.2 billion kilowatt hours (KWh) annually with a total installed capacity ...

  7. Opinion: Why ‘black swans’ are behind the Key Bridge and ...

    www.aol.com/opinion-why-black-swans-behind...

    The bridge falls under the Maryland Department of Transportation and the port is the city of Baltimore. No one agency has oversight of or coordinates global shipping or ports in the US.

  8. Marble Canyon Dam - Wikipedia

    en.wikipedia.org/wiki/Marble_Canyon_Dam

    The Marble Canyon Dam, also known as the Redwall Dam, was a proposed dam on the Colorado River in Arizona, United States. The dam was intended to impound a relatively small reservoir in the central portion of Marble Canyon to develop hydroelectric power. Plans centered on two sites between miles 30 and 40 in the canyon.

  9. Why did the Baltimore bridge collapse so quickly? Engineering ...

    www.aol.com/why-did-baltimore-bridge-collapse...

    The ship that collided with the bridge – the ‘Dali’ – was vast, at 300 meters long and 48.2 meters wide, loaded with huge amounts of cargo and travelling at a still unknown speed. (via ...