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  2. Mackinac Bridge - Wikipedia

    en.wikipedia.org/wiki/Mackinac_Bridge

    The Mackinac Bridge (/ ... Speed limit: 45 miles per hour (72 km/h) for passenger cars, 20 miles per hour (32 km/h) for heavy trucks. Heavy trucks are also required ...

  3. Federal Bridge Gross Weight Formula - Wikipedia

    en.wikipedia.org/wiki/Federal_Bridge_Gross...

    In effect, the formula reduces the legal weight limit for shorter trucks with fewer axles (see table below). For example, a 25-foot (7.6 m) three-axle dump truck would have a gross weight limit of 54,500 pounds (24,700 kg), instead of 80,000 pounds (36,000 kg), which is the standard weight limit for 63-foot (19.2 m) five-axle tractor-trailer. [1]

  4. Interstate 75 in Michigan - Wikipedia

    en.wikipedia.org/wiki/Interstate_75_in_Michigan

    The structure is the largest concrete segmental bridge in the United States. [130] Mackinac Bridge. The second is the Mackinac Bridge that connects Michigan's two peninsulas at the Straits of Mackinac. A structure was first proposed in 1888 by one of the directors of the Grand Hotel on Mackinac Island. Car ferry service was started in 1923 to ...

  5. Planning a trip to Mackinac Island this summer? Here's what ...

    www.aol.com/planning-trip-mackinac-island-summer...

    About 1.2 million people visit Mackinac Island each ... island and plan to sit on the upper deck for a beautiful view of Lake Huron and Mackinac Bridge, make sure you pack a light jacket for the ...

  6. Mackinac Bridge ranks 7th on list of 100 most scenic bridges ...

    www.aol.com/mackinac-bridge-ranks-7th-list...

    A new survey ranks Michigan's Mighty Mac among the nation's top 10 most scenic bridges. The Mackinac Bridge ranked seventh nationwide, falling within the top 10 of a 100-bridge ranking.

  7. Mackinac Bridge repairs starting in March to close lanes ...

    www.aol.com/mackinac-bridge-repairs-starting...

    More: Mackinac Bridge ranks 7th on list of 100 most scenic bridges in the country There also will be wide-load restrictions in both directions. Motorists should consider crossing at off-peak times ...

  8. Interstate Highway standards - Wikipedia

    en.wikipedia.org/wiki/Interstate_Highway_standards

    The bridge was designed before the start of the Interstate Highway System, and it was grandfathered into the system. [7] Interstate 93 super two through Franconia Notch, New Hampshire. Interstate 93 through Franconia Notch, New Hampshire is also a notable exception, being a super two parkway with a speed limit of 45 mph (72 km/h).

  9. Dump truck leaves hole in covered bridge when it crashes into ...

    www.aol.com/news/dump-truck-leaves-hole-covered...

    The weight limit on the bridge was 3 tons (2,700 kilograms), and the dump truck carrying crushed stone was “multiple times that,” said Paul Merrill, spokesperson for the Maine Department of ...