The Panama Canal is an artificial 82 km (51 mi) waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean, cutting across the Isthmus of Panama, and is a conduit for maritime trade. Canal locks at each end lift ships up to Gatun Lake, an artificial freshwater lake 26 meters (85 ft) above sea level, created by damming up the Chagres River and Lake Alajuela to reduce the amount of excavation work required for the canal, and then lower the ships at the other end. An average of 200,000,000 L (52,000,000 US gal) of fresh water are used in a single passing of a ship.
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions.
Panama City, also known as Panama, is the capital and largest city of Panama. It has a total population of 1,938,000, with over 1,500,000 in its urban area. The city is located at the Pacific entrance of the Panama Canal, in the province of Panama. The city is the political and administrative center of the country, as well as a hub for banking and commerce.
Chasewater is a reservoir located in the parish of Burntwood and the district of Lichfield in Staffordshire, England. Originally known as Norton Pool and Cannock Chase Reservoir, it was created as a canal feeder reservoir in 1797. The reservoir was created to directly supply the Wyrley and Essington Canal and maintain levels in the 160-mile (260 km) Birmingham Canal Network. During a period of great industrial growth in the Black Country region the maintenance of water levels in canal infrastructure was essential and Chasewater was in great demand. As canals became less essential for transport of goods during the mid-20th century, the reservoir diversified and became a popular public amenity with activities such as water-skiing, sailing, wakeboarding and cycling. Chasewater is the third largest reservoir by volume in the county of Staffordshire and the largest canal feeder reservoir in the West Midlands.
Lake Texcoco was a natural lake within the Anahuac or Valley of Mexico. Lake Texcoco is best known for an island situated on the western side of the lake where the Mexica built the city of Mēxihco Tenōchtitlan, which would later become the capital of the Aztec Empire. After the Spanish conquest, efforts to control flooding led to most of the lake being drained.
Gatun Lake is a freshwater artificial lake to the south of Colón, Panama. At approximately 26 m (85 ft) above sea level, it forms a major part of the Panama Canal, carrying ships 33 km (21 mi) of their transit across the Isthmus of Panama. It was created June 27, 1913 when the gates of the spillway at Gatun Dam were closed. The water level was about 14.6 m (48 ft) above sea level and was expected to fill to operating levels in the next six months.
The Gatun Dam is an earthen dam across the Chagres River in Panama, near the town of Gatun. The dam, constructed between 1907 and 1913, is a crucial element of the Panama Canal; it impounds the artificial Gatun Lake, which carries ships 33 kilometres (21 mi) of their transit across the Isthmus of Panama. In addition, a hydro-electric generating station at the dam generates electricity which is used to operate the locks and other equipment in the canal.
Lake Benmore is New Zealand's largest artificial lake. Located in the South Island of New Zealand and part of the Waitaki River, it was created in the 1960s by construction of Benmore Dam.
The Chagres River, in central Panama, is the largest river in the Panama Canal's watershed. The river is dammed twice, and the resulting reservoirs—Gatun Lake and Lake Alajuela—form an integral part of the canal and its water system. Although the river's natural course runs northwest to its mouth at the Caribbean Sea, its waters also flow, via the canal's locks, into the Gulf of Panama to the south. The Chagres thus has the unusual claim of drainage into two oceans.
The idea of the Panama Canal dates back to 1513, when Vasco Núñez de Balboa first crossed the Isthmus of Panama. This narrow land bridge between North and South America was a fine location to dig a water passage between the Atlantic and Pacific Oceans. The earliest European colonists recognized this, and several proposals for the construction of a canal were made.
A reservoir is an enlarged lake behind a dam. Such a dam may be either artificial, usually built to store fresh water, or it may be a natural formation.
Chagres, once the chief Atlantic port on the isthmus of Panama, is now an abandoned village at the historical site of Fort San Lorenzo. The fort's ruins and the village site are located about 8 miles (13 km) west of Colón, on a promontory overlooking the mouth of the Chagres River.
Cache Creek is an 87-mile-long (140 km) stream in Lake, Colusa and Yolo counties, California.
Henry Larcom Abbot was a military engineer and career officer in the United States Army. He served in the Union Army during the American Civil War and was appointed brevet brigadier general of volunteers for his contributions in engineering and artillery. In 1866 he received additional brevet appointments as major general of volunteers and brigadier general in the Regular Army. He conducted several scientific studies of the Mississippi River with captain, later Major General Andrew A. Humphreys. After his retirement, Abbot served as a consultant for the locks on the Panama Canal. He was elected a Fellow of the American Academy of Arts and Sciences in 1863.
Martin Barnaby Madden was a U.S. Representative from Illinois. He belonged to the Republican Party. As of 2023, he is the last non-African American to serve as a representative for Illinois's 1st congressional district.
Gatun is a small town on the Atlantic Side of the Panama Canal, located south of the city of Colón at the point in which Gatun Lake meets the channel to the Caribbean Sea. The town is best known as the site of the Panama Canal's Gatun Locks and Gatun Dam, built by the United States between 1906–1914.
The Chagres National Park is a nature park and protected area created in 1986 located between the Province of Panama and Colon, in the Eastern sector of the Panama Canal with a total surface area of 129,000 hectares.
The Madden Dam, completed in 1935, impounds the Chagres River in Panama to form Lake Alajuela, a reservoir that is an essential part of the Panama Canal watershed. The lake has a maximum level of 250 feet (76 m) above sea level. It can store one third of the canal's annual water requirements for the operation of the locks. Since the reservoir is not part of the navigational route, there are fewer restrictions on its water level.
Protected areas of Panama include:
The Cerrón Grande Reservoir, also known locally as Lake Suchitlán, is a reservoir in northern El Salvador and the largest body of fresh water in the country. The reservoir was filled between 1973 and 1976, subsequent to the construction of the Cerrón Grande Hydroelectric Dam. The Cerrón Grande Reservoir is among the most polluted bodies of fresh water in Central America.
