What highway in America has the steepest grade?

Slumgullion Pass is a high mountain pass at an elevation of 3.514m (11,530ft) above the sea level, located in Hinsdale County, in southwestern Colorado, USA.
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What US highway has the steepest grade?

California Route 108

As a result, the roads are winding, narrow, and definitely steep.
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What road has the steepest grade?

Baldwin Street in the city of Dunedin on New Zealand's South Island is officially the world's steepest residential road. At its steepest, the slope has a gradient of 35%.
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What are the 10 steepest streets in the United States?

The 10 Steepest Streets In America
  • Waipio Rd. in Honokaa, HI -- 45% gradient.
  • Canton Ave. in Pittsburgh, PA -- 37% gradient.
  • Eldred St. in Los Angeles, CA -- 33.30% gradient.
  • 28th St. in Los Angeles, CA -- 33% gradient.
  • Baxter St. in Los Angeles, CA -- 32% gradient.
  • Fargo St. ...
  • Maria Ave. ...
  • Dornbush St.
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What is a 100 grade slope?

o Degree of slope is measured in degrees from horizontal (0 – 90) ▪ A 45-degree slope is a 100 percent grade.
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16% Road Grade



What is the steepest slope you can walk up?

Athletes run or walk up steep slopes ranging between 10 degrees and 30 degrees in order to ascend 1,000 meters over a distance of less than 5 kilometers, or about 3.1 miles. The world record for a VK course is 29 minutes, 42 seconds and was set in Fully, Switzerland on a course with an average slope of 31 degrees.
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How steep a hill can a tractor climb?

Zero Turn Mower slope ratings rarely exceed 15 degrees (27% Grade) and are often rated as low as 8.5 degrees (15% Grade). Many Conventional Compact Tractors like those made by John Deere & Kubota are not slope rated at all, those that are rated are typically in the 10-15 degree range.
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Where is the steepest hill in the US?

BEECHVIEW: Pittsburgh's Canton Avenue is the steepest street in the United States.
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What are the steepest streets in the United States?

List of Steepest Roads in the US
  • Waipio Road in Honokaa, Hawaii.
  • Canton Avenue in Pittsburgh, Pennsylvania.
  • Eldred Street in Los Angeles, California.
  • 28th Street in Los Angeles, California.
  • Baxter Street in Los Angeles, California.
  • Fargo St. ...
  • Maria Avenue in Spring Valley, California.
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What is the steepest grade highway in California?

Old Priest Grade Road is the name of a very hairy ride located in the County of Tuolumne, in the U.S. state of California. It's brutally steep hitting a 20% through some of the ramps. Passenger vehicles only. Though it may be dangerous, it's also very scenic.
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