May 07, 2017 · May 8th, 2017 at 9:40 am; I may have based my original post on the car versus housing comparison. I paid $10,600 for a new ‘top of the line’ Corvette when the average house price in the GTA was around $50k. A new Corvette in Canada now starts at $65k. The average home price in the GTA as of last month was $916k.
Jun 24, 2017 - Watch live car shows, drag racing highlights, truck competition videos, and all things auto on Motortopia.com
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Before the bridge was built, the only practical short route between San Francisco and what is now Marin County was by boat across a section of San Francisco Bay. A ferry service began as early as 1820, with a regularly scheduled service beginning in the 1840s for the purpose of transporting water to San Francisco. The Sausalito Land and Ferry Company service, launched in 1867, eventually became the Golden Gate Ferry Company, a Southern Pacific Railroad subsidiary, the largest ferry operation...
Although the idea of a bridge spanning the Golden Gate was not new, the proposal that eventually took hold was made in a 1916 San Francisco Bulletin article by former engineering student James Wilkins. San Francisco's City Engineer estimated the cost at $100 million (equivalent to $2.4 billion today), and impractical for the time. He asked bridge engineers whether it could be built for less. One who responded, Joseph Strauss, was an ambitious engineer and poet who had, for his graduate thesis...
Strauss was the chief engineer in charge of the overall design and construction of the bridge project. However, because he had little understanding or experience with cable-suspension designs, responsibility for much of the engineering and architecture fell on other experts. Strauss's initial design proposal (two double cantilever spans linked by a central suspension segment) was unacceptable from a visual standpoint. The final graceful suspension design was conceived and championed by Leon M...
Until 1964, the Golden Gate Bridge had the longest suspension bridge main span in the world, at 4,200 feet (1,300 m). Since 1964 its main span length has been surpassed by seventeen bridges; it now has the second-longest main span in the Americas, after the Verrazzano-Narrows Bridge in New York City. The total length of the Golden Gate Bridge from abutmentto abutment is 8,981 feet (2,737 m). The Golden Gate Bridge's clearance above high water averages 220 feet (67 m) while its towers, at 746 feet (227 m) above the water, were the world's tallest on a suspension bridge until 1993 when it was surpassed by the Mezcala Bridge, in Mexico. The weight of the roadway is hung from 250 pairs of vertical suspender ropes, which are attached to two main cables. The main cables pass over the two main towers and are fixed in concrete at each end. Each cable is made of 27,572 strands of wire. The total length of galvanized steel wire used to fabricate both main cables is estimated to be 80,000 mile...
Aesthetics was the foremost reason why the first design of Joseph Strauss was rejected. Upon re-submission of his bridge construction plan, he added details, such as lighting, to outline the bridge's cables and towers. In 1999, it was ranked fifth on the List of America's Favorite Architecture by the American Institute of Architects. The color of the bridge is officially an orange vermilion called international orange. The color was selected by consulting architect Irving Morrowbecause it complements the natural surroundings and enhances the bridge's visibility in fog. The bridge was originally painted with red lead primer and a lead-based topcoat, which was touched up as required. In the mid-1960s, a program was started to improve corrosion protection by stripping the original paint and repainting the bridge with zinc silicate primer and vinyl topcoats. Since 1990, acrylic topcoats have been used instead for air-quality reasons. The program was completed in 1995 and it is now maint...
Most maps and signage mark the bridge as part of the concurrency between U.S. Route 101 and California State Route 1. Although part of the National Highway System, the bridge is not officially part of California's Highway System. For example, under the California Streets and Highways Code § 401, Route 101 ends at "the approach to the Golden Gate Bridge" and then resumes at "a point in Marin County opposite San Francisco". The Golden Gate Bridge, Highway and Transportation District has jurisdiction over the segment of highway that crosses the bridge instead of the California Department of Transportation(Caltrans). The movable median barrier between the lanes is movedseveral times daily to conform to traffic patterns. On weekday mornings, traffic flows mostly southbound into the city, so four of the six lanes run southbound. Conversely, on weekday afternoons, four lanes run northbound. During off-peak periods and weekends, traffic is split with three lanes in each direction. From 1968...
The Golden Gate Bridge is the most used suicide site in the world. The deck is about 245 feet (75 m) above the water. After a fall of four seconds, jumpers hit the water at around 75 mph (120 km/h; 30 m/s). Most die from impact trauma. About 5% survive the initial impact but generally drown or die of hypothermiain the cold water. After years of debate and an estimated more than 1,500 deaths, suicide barriers, consisting of a stainless steel net extending 20 feet from the bridge and supported...
The Golden Gate Bridge was designed to safely withstand winds of up to 68 mph (109 km/h). Until 2008, the bridge was closed because of weather conditions only three times: on December 1, 1951, because of gusts of 69 mph (111 km/h); on December 23, 1982, because of winds of 70 mph (113 km/h); and on December 3, 1983, because of wind gusts of 75 mph (121 km/h). An anemometerplaced midway between the two towers on the west side of the bridge, has been used to measure wind speeds. Another anemome...
Seismic vulnerability and improvements
Modern knowledge of the effect of earthquakes on structures led to a program to retrofit the Golden Gate to better resist seismic events. The proximity of the bridge to the San Andreas Fault places it at risk for a significant earthquake. Once thought to have been able to withstand any magnitude of foreseeable earthquake, the bridge was actually vulnerable to complete structural failure (i.e., collapse) triggered by the failure of supports on the 320-foot (98 m) arch over Fort Point. A $392 m...Cassady, Stephen (1979). Spanning the Gate (Commemorative edition, 1987 ed.). Squarebooks. ISBN 978-0916290368.Dyble, Louise Nelson; the Golden Gate Bridge (2009). Paying the Toll: Local Power, Regional Politics. University of Pennsylvania Press. ISBN 9780812222784.Friend, Tad (October 13, 2003). "Jumpers: The fatal grandeur of the Golden Gate Bridge". The New Yorker. 79 (30). p. 48. Archived from the originalon November 8, 2006.Guthman, Edward; an easy route to death have long made the Golden Gate Bridge a magnet for suicides (October 30, 2005). "Lethal Beauty / The Allure: Beauty". San Francisco Chronicle.Historic American Engineering Record (HAER) No. CA-31, "Golden Gate Bridge", 41 photos, 6 color transparencies, 2 data pages, 4 photo caption pagesLinks for Golden Gate Bridge at Curlie
- 4,200 ft (1,280.2 m), about 0.79 miles (1.28 km)
- 8,980 ft (2,737.1 m), about 1.7 mi (2.7 km)
- May 27, 1937; 84 years ago
- Golden Gate
Nov 08, 2017 · Trouvez la photo de stock éditoriale de Frida Giannini Patrizio di Marco et bien d’autres dans la collection de photographies éditoriales Shutterstock. Des milliers de nouvelles photos ajoutées chaque jour.
- The second generation Corvette (C2) run from October 1963 until September 1967, but the L75 Series ended in October 1965. - The C2 Series L75 was available as this 2-door Fastback Coupé and as 2-door 837 Sting Ray Convertible (1963: 10,919 units built / 1963-1965: 34,599 units built) and assembled in St. Louis, Missouri - USA.
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