The Friesenbrücke is a railway bridge in Weener, Germany, crossing the river Ems .
12-492: The first bridge was built under the name Emsbrücke Hilkenborg between 1874 and 1876. In June 1922 the lighter Hohenfelde , towed by the Theseus , collided with the bridge, making the construction of a new bridge necessary. Between 1924 and 1926 the new bridge, a bascule bridge and the first Friesenbrücke , was built with a length of about 335 meters. During World War 2 it was blown up by German soldiers ( Wehrmacht ) to stop
24-453: A grinding or blending mechanism to reduce human waste to a slurry, which can then be moved by pumping. This is useful when, for example, water pressure is low or one wishes to install a toilet below the sewer drain pipe. Maceration can be achieved by using a chopper pump in the sewage lift station or at the wastewater treatment plant. At Antarctic research stations with an average summer population of more than 30 people, maceration
36-613: A length of 145 meters, the wide of the ship opening will be around 57 meters. The bridge keeper's house won't be demolished, and will get an additional floor. Construction of the superstructure in Weener started in July 2024. Until the completion, there is ferry service between Weener and Westoverledingen. In May 2024, a delay for around a half year was announced. 53°09′41″N 7°22′21″E / 53.1614°N 7.3724°E / 53.1614; 7.3724 Lighter (barge) A lighter
48-621: Is a type of flat-bottomed barge used to transfer goods and passengers to and from moored ships. Lighters were traditionally unpowered and were moved and steered using long oars called "sweeps" and the motive power of water currents. They were operated by skilled workers called lightermen and were a characteristic sight in London's docks until about the 1960s, when technological changes made this form of lightering largely redundant. Unpowered lighters continue to be moved by powered tugs, however, and lighters may also now themselves be powered. The term
60-617: Is also used in the Lighter Aboard Ship (LASH) system. The name itself is of uncertain origin, but is believed to possibly derive from an old Dutch or German word, lichten (to lighten or unload). In Dutch and German, the words lichter or Leichter are still used for smaller ships that take over goods from larger ships. Lighters, albeit powered ones, were proposed to be used in 2007 at Port Lincoln and Whyalla in South Australia to load Capesize ships which are too big for
72-615: Is the minimum treatment level required before sewage can be disposed of in the sea. This procedure is outlined in the Madrid Protocol , an international treaty outlining environmental practices to be followed in Antarctica. Research stations that do not meet this population threshold are allowed to dump untreated, unmacerated sewage directly into the sea. The treaty also allows ships carrying more than ten people to discharge macerated wastewater (including sewage and food waste ) directly into
84-626: The Canadian soldiers at the Ems. After World War 2, a new Friesenbrücke was built between 1951 and 1952, also a bascule bridge. The bridge wasn't wide enough to allow all newbuilts of the Meyer Werft in Papenburg to pass the bridge since the 1980s, so a second was created, which was opened by a crane vessel multiple times a year. In December 2015 the bridge was damaged by the cargo ship Emsmoon . Since then,
96-417: The bridge has been closed for railway. In the following days, the scrap was removed by a floating crane. Passing the bridge wasn't possible for ocean-going ships for about one week. The bridge was demolished in 2021/22. A new Friesenbrücke is planned to be completed in 2024 as a swing bridge . Construction officially started in July 2021. The bridge will have a length of 337 meters. The swing element will have
108-404: The hull space into housespace. As they have no propulsion methods, they are towed from conversion sites to permanent or semi-permanent mooring sites. They have macerators to deal with toilet waste. Maceration (sewage) Maceration , in sewage treatment , is the use of a machine that reduces solids to small pieces in order to deal with rags and other solid waste. Macerating toilets use
120-543: The largest ones can carry up to 300 TEU containers (empties). Lighters are usually not fitted with engines but are towed or pushed by tugboats. In 2007, midstream operators handled about 2 million TEUs and 5 million TEUs were transported as river trade cargo, which are heavily dependent on lighters. In the UK, some older lighters have been converted into houseboats (for living on the river). As they lack engine rooms and gearbox, shaft or propellers, this means maximum usage of
132-430: The sea, provided that the vessel is more than 12 nautical miles from shore. In food processing plants, maceration refers to the use of a chopper pump to create a "blended" slurry of food waste and other organic byproducts. The macerated substance, which can be described as a protein-rich slurry, is often used for animal feed, fertilizer, and for co-digestion feedstock in biogas plants. This waste -related article
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#1733318155235144-623: The shallower waters close to shore. The lighter barge gave rise to the "lighter tug", a small, manoeuvrable type of harbour tug . Lighter tugs—or simply "lighters"—are designed for towing lighter barges. As such, they are smaller than traditional harbour tugs and lack the power or equipment to handle large ships. Hong Kong widely uses lighters in midstream operations where lighters transport cargo, mostly containers, between oceangoing vessels or to and from terminals. Lighters in Hong Kong are usually equipped with cranes of 40-60 tonnes capacity, and
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