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Panama Canal
The Panama Canal (Spanish: Canal de Panamá) is a 48-mile (77.1 km) ship canal in Panama that connects the Atlantic Ocean (via the Caribbean Sea) to the Pacific Ocean. The canal cuts across the Isthmus of Panama and is a key conduit for international maritime trade. There are locks at each end to lift ships up to Gatun Lake (85 feet (26 m) above sea-level). Gatun Lake was created to reduce the amount of work required for the canal. The current locks are 110 feet (33.5 m) wide. A third, wider lane of locks is being built. France began work on the canal in 1881, but had to stop because of engineering problems and high mortality due to disease. The United States (US) later took over the project and took a decade to complete the canal in 1914, enabling ships to avoid the lengthy Cape Horn route around the southernmost tip of South America (via the Drake Passage) or to navigate the Strait of Magellan. One of the largest and most difficult engineering projects ever undertaken, the Panama Canal shortcut made it possible for ships to travel between the Atlantic and Pacific Oceans in half the time previously required. The shorter, faster, safer route to the US West Coast and to nations in and along the Pacific Ocean allowed those places to become more integrated with the world economy. During this time, ownership of the territory that is now the Panama Canal was first Colombian, then French, and then American; the United States completed the construction. The canal was taken over in 1999 by the Panamanian government, as long planned. Annual traffic has risen from about 1,000 ships when the canal opened in 1914, to 14,702 vessels in 2008, the latter measuring a total of 309.6 million Panama Canal/Universal Measurement System (PC/UMS) tons. By 2008, more than 815,000 vessels had passed through the canal, many of them much larger than the original planners could have envisioned; the largest ships that can transit the canal today are called Panamax.[1] The American Society of Civil Engineershas named the Panama Canal one of the seven wonders of the modern world.[2]
Suez Canal
The Suez Canal (Arabic: ???? ??????? Qan?t al-S?wais) is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea and the Red Sea. Opened in November 1869 after 10 years of construction work, it allows transportation by waterbetween Europe and Asia without navigation around Africa. The northern terminus is Port Said and the southern terminus isPort Tawfiq at the city of Suez. Ismailia lies on its west bank, 3 km (1.9 mi) from the half-way point.[1] When first built, the canal was 164 km (102 mi) long and 8 m (26 ft) deep. After multiple enlargements, the canal is 193.30 km (120.11 mi) long, 24 m (79 ft) deep and 205 metres (673 ft) wide as of 2010.[2] It consists of the northern access channel of 22 km (14 mi), the canal itself of 162.25 km (100.82 mi) and the southern access channel of 9 km (5.6 mi).[3] The canal is single lane with passing places in the "Ballah By-Pass" and the Great Bitter Lake.[4] It contains no locks; seawater flows freely through the canal. In general, the canal north of the Bitter Lakes flows north in winter and south in summer. The current south of the lakes changes with the tide at Suez.[5] The canal is owned and maintained by the Suez Canal Authority[6] (SCA) of Egypt. Under international treaty, it may be used "in time of war as in time of peace, by every vessel of commerce or of war, without distinction of flag."[7]
