Search results
Results from the WOW.Com Content Network
An unofficial survey of San Francisco streets declared the steepest street in San Francisco to be a 30-foot section of Bradford Street, [5] paved in 2010, with a 40% grade. [6] The curvy Lombard Street started as a 27% grade. [7] The cities of Houghton and Hancock in Michigan, US, have been noted for their steep streets. [8]
The Guinness World Record once again lists Baldwin Street as the steepest street in the world, with a 34.8% grade (1 in 2.87) after a successful appeal [10] against the ruling that handed the title, briefly, to Ffordd Pen Llech. A number of streets elsewhere have steeper grades than those listed in the Guinness Book.
An Interstate Highway under construction , with both directions of traffic moved to one side of the roadway I-94 in Michigan, showing examples of non-interchange overpass signage in median, upcoming exit signage on right shoulder, a pre-1960 overpass with height restriction signage, newly installed cable median barrier, and parallel grooved ...
Originally constructed in the early 1920s, it is one of the steepest and most difficult to drive of any California state highway. Until recently it was called the "crookedest road in California". [citation needed] Vehicles more than 39 feet (12 m) in length are banned from the Hopland Grade, due to its many tight hairpin turns and curves. [2]
Canton Avenue is a street in Pittsburgh's Beechview neighborhood which is the steepest officially recorded public street in the United States. [1] [2] [3]Canton Avenue is 630 ft (190 m) long (the hill is about 213 feet long) and is claimed to include a 37% grade 21 feet (6.4 m) long.
The highway over the pass is extremely steep (exceeding 8% for most of the traverse, and up to 26% grades in some locations), narrow and winding between Kennedy Meadows on the west side and Leavitt Meadows on the east; unlike most Sierra Nevada road passes, the approach from the west is steep just like the eastern approach.
Crest vertical curves are curves which, when viewed from the side, are convex upwards. This includes vertical curves at hill crests, but it also includes locations where an uphill grade becomes less steep, or a downhill grade becomes steeper. The most important design criterion for these curves is stopping sight distance. [2]
The Cumberland Thruway bridge, as seen from the Baltimore Street bridge over Wills Creek in Cumberland, Maryland. In the early 1960s, as the Interstate Highway System was being built throughout the U.S., east–west travel through western Maryland was difficult, as US 40, the predecessor to I-68, was a two-lane country road with steep grades and hairpin turns. [4]