The Corinth Canal is an artificial canal in Greece that connects the Gulf of Corinth in the Ionian Sea with the Saronic Gulf in the Aegean Sea. It cuts through the narrow Isthmus of Corinth and separates the Peloponnese from the Greek mainland, making the peninsula an island. The canal was dug through the Isthmus at sea level and has no locks. It is 6.4 kilometres in length and only 24.6 metres wide at sea level, making it impassable for many modern ships. It is currently of little economic importance and is mainly a tourist attraction.
The Chesapeake & Delaware Canal is a 14-mile (22.5 km)-long, 450-foot (137.2 m)-wide and 35-foot (10.7 m)-deep ship canal that connects the Delaware River with the Chesapeake Bay in the states of Delaware and Maryland in the United States.
A swing bridge is a movable bridge that has as its primary structural support a vertical locating pin and support ring, usually at or near to its center of gravity, about which the swing span can then pivot horizontally as shown in the animated illustration to the right. Small swing bridges as found over canals may be pivoted only at one end, opening as would a gate, but require substantial underground structure to support the pivot.
A semi-submersible platform is a specialised marine vessel used in offshore roles including as offshore drilling rigs, safety vessels, oil production platforms, and heavy lift cranes. They have good ship stability and seakeeping, better than drillships.
The Portage Lake Lift Bridge connects the cities of Hancock and Houghton, in the US state of Michigan. It crosses Portage Lake, a portion of the waterway which cuts across the Keweenaw Peninsula with a canal linking the final several miles to Lake Superior to the northwest. US Highway 41 (US 41) and M-26 are both routed across the bridge. It is the only land-based link between the north and south sections of the Keweenaw peninsula. In June 2022, it was dedicated as a National Historic Civil Engineering Landmark.
A vertical-lift bridge or just lift bridge is a type of movable bridge in which a span rises vertically while remaining parallel with the deck.
The Broadway Bridge is a vertical-lift bridge across the Harlem River Ship Canal in the borough of Manhattan in New York City. It connects the neighborhoods of Inwood on Manhattan Island and Marble Hill on the mainland. The bridge consists of two decks. The lower deck carries Broadway, which is designated as U.S. Route 9 at this location. The upper deck carries the New York City Subway's IRT Broadway–Seventh Avenue Line, serving the 1 train.
A moveable bridge, or movable bridge, is a bridge that moves to allow passage for boats or barges. In American English, the term is synonymous with drawbridge, and the latter is the common term, but drawbridge can be limited to the narrower, historical definition used in some other forms of English, in which drawbridge refers to only a specific type of moveable bridge often found in castles.
A retractable bridge is a type of moveable bridge in which the deck can be rolled or slid backwards to open a gap while traffic crosses, usually a ship on a waterway. This type is sometimes referred to as a thrust bridge.
Navigable aqueducts are bridge structures that carry navigable waterway canals over other rivers, valleys, railways or roads. They are primarily distinguished by their size, carrying a larger cross-section of water than most water-supply aqueducts. Roman aqueducts were used to transport water and were created in Ancient Rome. The 662-metre (2,172 ft) long steel Briare aqueduct carrying the Canal latéral à la Loire over the River Loire was built in 1896. It was ranked as the longest navigable aqueduct in the world for more than a century, until the Magdeburg Water Bridge in Germany took the title in the early 21st century.
Allanburg is the capital of the City of Thorold, Ontario, Canada. It is located on the Welland Canal and Highway 20, both important transportation routes through the Niagara Peninsula. The two cross at a vertical-lift bridge, numbered as Bridge 11 by the Saint Lawrence Seaway Authority, but often known simply as the Allanburg Bridge. The collision of the ship Windoc with the bridge made national news in 2001.
A low-water crossing is a low-elevation roadway traversing over a waterbody that stays dry above the water when the flow is low, but is designed to get submerged under high-flow conditions such as floods. This type of crossing is much cheaper to build than a high bridge that keeps the road surface consistently above the highest water level, and is usually deployed in semi-arid areas where high-volume rainfall is rare and the existing channel is shallow, particularly in developing countries.
The Newark Bay Bridge of the Central Railroad of New Jersey (CNJ) was a railroad bridge in New Jersey that connected Elizabethport and Bayonne at the southern end of Newark Bay. Its third and final incarnation was a four-track vertical-lift design that opened in 1926, replacing a bascule bridge from 1904 which superseded the original swing bridge from 1887. The bridge served the main line of the CNJ, carrying daily interstate trains as well as commuter trains.
A linkspan or link-span is a type of drawbridge used mainly in the operation of moving vehicles on and off a roll-on/roll-off (RO-RO) vessel or ferry, particularly to allow for tidal changes in water level.
The North Avenue Bridge can refer to one of three bridges that has carried North Avenue over the North Branch of the Chicago River on the north side of Chicago, Illinois. A center-pier swing bridge built in 1877 was replaced in 1907 by a bascule bridge, allowing river traffic more room for maneuvering in and out of the North Canal, just north of Goose Island.
The Rolling Bridge is a kinetic sculpture, and a unique type of curling moveable bridge, completed in 2004 as part of the Grand Union Canal office and retail development project at Paddington Basin, London.
A table bridge is one of the types of moveable bridge in which the deck moves vertically. Two or four hydraulic pillars under the bridge, one or two at each end, raise the bridge deck to allow barge traffic to pass beneath it. In contrast to a lift bridge, where the deck is pulled upwards along towers, the deck of a table bridge is pushed upwards by otherwise hidden pillars. The name originates from the fact that when open it resembles a table.
A heavy-lift ship is a vessel designed to move very large loads that cannot be handled by normal ships. They are of two types:
The Salford Quays lift bridge, also known as the Salford Quays Millennium footbridge or the Lowry bridge, is a 91.2-metre (299 ft) long vertical lift bridge spanning the Manchester Ship Canal between Salford and Trafford in Greater Manchester, England. The pedestrian bridge, which was completed in 2000, is near the terminus of the ship canal at the old Manchester Docks. It is sited beside The Lowry theatre and gallery and links Salford Quays and MediaCityUK to Trafford Wharf and the Imperial War Museum North. It has a lift of 18 metres (59 ft), allowing large watercraft to pass beneath.
