Interstate 80 Near Truckee, California : 無料・フリー素材/写真
Interstate 80 Near Truckee, California / Ken Lund
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | In the U.S. state of California, Interstate 80 (I-80), a major east–west route of the Interstate Highway System, has its western terminus (ending point) in San Francisco, California, United States. From there it heads east across the Bay Bridge to Oakland, where it turns north and crosses the Carquinez Bridge before turning back northeast through the Sacramento Valley. I-80 then goes northeast and east over the Sierra Nevada mountain range before crossing into the state of Nevada within the Truckee (River) Canyon. The speed limit is 65 miles per hour instead of the state's maximum of 70 since the road passes exclusively through urban and mountainous areas in California.Interstate 80 has portions designated as either the San Francisco Skyway, Eastshore Freeway, or Roseville Freeway.Crossing the Sierra Nevada, I-80 regularly gets snow at higher elevations from fall to spring. Caltrans sometimes requires vehicles to use snow tires, snow chains or other traction devices in the mountains during and after snowstorms. Checkpoints are often set up to enforce chain restrictions on vehicles bound for icy or snowy areas. When chain restrictions are in effect vehicles must have chains on the driving wheels, except 4WD vehicles with snow tires. Additionally, during the winter season, trucks are required to carry chains whether or not controls are in force. When controls are in effect or possible, trucks are checked for chains in their possession at Applegate (eastbound) and Mogul, NV (westbound).I-80 crosses the Sierra Nevada crest at Donner Summit (also known as Euer Saddle) at an elevation of 7,239 feet (2,206 m) westbound and 7,227 feet (2,203 m) eastbound. The summit is located in Nevada County, California. The pass is generally open year-round; it is plowed in winter, but may temporarily close during the worst snowstorms. The older, original Lincoln Highway route (Historical US 40) over Donner Pass is about two miles (3 km) to the south; this highway was replaced as the official trans-Sierra route by I-80 in 1964. Although the current Donner Pass is lower, Euer Saddle was chosen for the interstate because of more gradual approaches.en.wikipedia.org/wiki/Interstate_80_in_Californiaen.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_... |
| 撮影日 | 2005-07-07 17:20:14 |
| 撮影者 | Ken Lund , Reno, Nevada, USA |
| タグ | |
| 撮影地 | Tamarack, California, United States 地図 |
| カメラ | Canon PowerShot A70 , Canon |
| 露出 | 0.001 sec (1/1000) |
| 開放F値 | f/3.2 |
| 焦点距離 | 7692.307692 dpi |