The St. Lawrence Seaway is a system of locks, canals, and channels in Canada and the United States that permits oceangoing vessels to travel from the Atlantic Ocean to the Great Lakes of North America, as far inland as Duluth, Minnesota, at the western end of Lake Superior. The seaway is named for the St. Lawrence River, which flows from Lake Ontario to the Atlantic Ocean. Legally, the seaway extends from Montreal, Quebec, to Lake Erie, and includes the Welland Canal. Ships from the Atlantic Ocean are able to reach ports in all five of the Great Lakes, via the Great Lakes Waterway.
Sault Ste. Marie is a city in the Upper Peninsula of the U.S. state of Michigan. It is the county seat of Chippewa County and is the only city within the county. With a population of 13,337 at the 2020 census, it is the second-most populated city in the Upper Peninsula, behind Marquette. It is the primary city of the Sault Ste. Marie, MI Micropolitan Statistical Area, which encompasses all of Chippewa County and had a population of 36,785 at the 2020 census. Sault Ste. Marie was settled by mostly French colonists in 1668, making it the oldest city in Michigan.
The Portsmouth and Arundel Canal was a canal in the south of England that ran between Portsmouth and Ford in the Arundel district, it was built in 1823 but was never a financial success and was abandoned in 1855; the company was wound up in 1888. The canal was part of a larger scheme for the construction of a secure inland canal route from London to Portsmouth, which allowed craft to move between the two without having to venture into the English Channel and possibly encounter enemy ships or natural disaster. It was built by the Portsmouth & Arundel Navigation company. The canal was made up of three sections: a pair of ship canals, one on Portsea Island and one to Chichester, and a barge canal that ran from Ford on the River Arun to Hunston where it joined the Chichester section of the canal
A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water level can be varied; whereas in a caisson lock, a boat lift, or on a canal inclined plane, it is the chamber itself that rises and falls.
The Chesapeake and Ohio Canal, abbreviated as the C&O Canal and occasionally called the Grand Old Ditch, operated from 1831 until 1924 along the Potomac River between Washington, D.C. and Cumberland, Maryland. It replaced the Potomac Canal, which shut down completely in 1828, and could operate during months in which the water level was too low for the former canal. The canal's principal cargo was coal from the Allegheny Mountains.
The Caledonian Canal connects the Scottish east coast at Inverness with the west coast at Corpach near Fort William in Scotland. The canal was constructed in the early nineteenth century by Scottish engineer Thomas Telford.
The St. Marys River, sometimes written St. Mary's River, drains Lake Superior, starting at the end of Whitefish Bay and flowing 74.5 miles (119.9 km) southeast into Lake Huron, with a fall of 23 feet (7.0 m). For its entire length it is an international border, separating Michigan in the United States from Ontario, Canada.
The Welland Canal is a ship canal in Ontario, Canada, and part of the St. Lawrence Seaway and Great Lakes Waterway. The canal traverses the Niagara Peninsula between Port Weller on Lake Ontario, and Port Colborne on Lake Erie, and was erected because the Niagara River—the only natural waterway connecting the lakes—was unnavigable due to Niagara Falls. The Welland Canal enables ships to ascend and descend the Niagara Escarpment, and has followed four different routes since it opened.
The River Weaver is a river, navigable in its lower reaches, running in a curving route anti-clockwise across west Cheshire, northern England. Improvements to the river to make it navigable were authorised in 1720 and the work, which included eleven locks, was completed in 1732. An unusual clause in the enabling Act of Parliament stipulated that profits should be given to the County of Cheshire for the improvement of roads and bridges, but the navigation was not initially profitable, and it was 1775 before the first payments were made. Trade continued to rise, and by 1845, over £500,000 had been given to the county.
The Soo Locks are a set of parallel locks, operated and maintained by the United States Army Corps of Engineers, Detroit District, that enable ships to travel between Lake Superior and the lower Great Lakes. They are located on the St. Marys River between Lake Superior and Lake Huron, between the Upper Peninsula of the U.S. state of Michigan and the Canadian province of Ontario. They bypass the rapids of the river, where the water falls 21 ft (6.4 m). The locks pass an average of 10,000 ships per year, despite being closed during the winter from January through March, when ice shuts down shipping on the Great Lakes. The winter closure period is used to inspect and maintain the locks.
Bonneville Lock and Dam consists of several run-of-the-river dam structures that together complete a span of the Columbia River between the U.S. states of Oregon and Washington at River Mile 146.1. The dam is located 40 miles (64 km) east of Portland, Oregon, in the Columbia River Gorge. The primary functions of Bonneville Lock and Dam are electrical power generation and river navigation. The dam was built and is managed by the United States Army Corps of Engineers. At the time of its construction in the 1930s it was the largest water impoundment project of its type in the nation, able to withstand flooding on an unprecedented scale. Electrical power generated at Bonneville is distributed by the Bonneville Power Administration. Bonneville Dam is named for Army Capt. Benjamin Bonneville, an early explorer credited with charting much of the Oregon Trail. The Bonneville Dam Historic District was designated a National Historic Landmark District in 1987.
Long Sault was a rapid in the St. Lawrence River upstream and west of Cornwall, Ontario. Sault is the archaic spelling of the French word saut, meaning rapids.
The Panama Canal locks are a lock system that lifts ships up 85 feet to the main elevation of the Panama Canal and down again. The original canal had a total of six steps for a ship's passage. The total length of the lock structures, including the approach walls, is over 1.9 miles (3 km). The locks were one of the greatest engineering works ever to be undertaken when they opened in 1914. No other concrete construction of comparable size was undertaken until the Hoover Dam, in the 1930s.
The Sault Ste. Marie Canal is a National Historic Site in Sault Ste. Marie, Ontario, and is part of the national park system, managed by Parks Canada. It includes a lock to bypass the rapids on the St. Marys River.
The Mersey and Irwell Navigation was a river navigation in North West England, which provided a navigable route from the Mersey estuary to Salford and Manchester, by improving the course of the River Irwell and the River Mersey. Eight locks were constructed between 1724 and 1734, and the rivers were improved by the construction of new cuts several times subsequently. Use of the navigation declined from the 1870s, and it was ultimately superseded by the Manchester Ship Canal, the construction of which destroyed most of the Irwell section of the navigation and the long cut between Latchford and Runcorn.
The Sagamore is reported to be the best example of a whaleback barge among Great Lakes shipwrecks. Only 44 whalebacks were ever built, and out of the 26 that sank, only 8 sank in the Great Lakes, most of them being blown up for blocking shipping channels. She sank in 1901 in the shipping lane near the Soo Locks when she was rammed by the steel steamer Northern Queen in one of Whitefish Bay's notorious fogs. Her captain and two crew members went down with her. Artifacts from her wreck were illegally removed in the 1980s. Her artifacts are now the property of the State of Michigan and are on display as a loan to the Great Lakes Shipwreck Museum. The wreck of the Sagamore is protected as part of an underwater museum in the Whitefish Point Underwater Preserve.
The Edison Sault Power Canal supplies the Saint Marys Falls Hydropower Plant, a Cloverland Electric Cooperative hydroelectric plant, in Sault Ste. Marie, Michigan. Excavation of the power canal began in September 1898 and was completed in June 1902. The canal and hydroelectric complex were named a Historic Civil Engineering Landmark in 1983.
Sault Ste. Marie Bridge Company is a subsidiary of the Wisconsin Central Ltd. It operates a railroad bridge over the St. Marys River between Sault Ste. Marie, Michigan and Sault Ste. Marie, Ontario.
The Sault Ste. Marie Railroad Bridge was originally built in 1887 to facilitate rail traffic crossing St. Marys River and the international border between Sault Ste. Marie, Michigan and Sault Ste. Marie, Ontario. It runs parallel to the Sault Ste. Marie International Bridge. It has nine Camelback spans and carries a single line of track.
Sault Ste. Marie is a city in Ontario, Canada. The third-largest city in Northern Ontario after Sudbury and Thunder Bay, it is located on the St. Mary's River on the Canada–US border. To the southwest, across the river, is the United States and the Michigan city of the same name. The two cities are joined by the Sault Ste. Marie International Bridge, which connects Interstate 75 on the Michigan side to Huron Street on the Ontario side. Shipping traffic in the Great Lakes system bypasses the Saint Mary's Rapids via the American Soo Locks, the world's busiest canal in terms of tonnage that passes through it, while smaller recreational and tour boats use the Canadian Sault Ste. Marie Canal.
