26-655: The Hobart Rivulet , part of the River Derwent catchment, is an urban stream located in the Hobart hinterland and flows through and underneath the city, in Tasmania , Australia. The rivulet rises on the slopes of Mount Wellington and flows generally northeast over O'Grady's Falls, Strickland Falls, through South Hobart and past what was known as the World Heritage -listed Cascades Female Factory towards
52-601: A freshwater river in the Central Highlands at Lake St Clair , descending over 700 metres (2,300 ft) across a distance of more than 200 kilometres (120 mi). At the settlement of New Norfolk in the Derwent Valley its waters become brackish , flowing through Hobart , the capital city of Tasmania, its seawater estuary eventually empties into Storm Bay and the Tasman Sea . Historically,
78-512: A significant portion of Hobart's water needs. The river is also crucial for recreation, supporting activities such as boating, fishing, and leisure along its banks. Additionally, it facilitates marine transportation and various industrial activities, playing a central role in Tasmania's economy and lifestyle. The upper part of the river was named after the River Derwent, Cumbria by British Commodore John Hayes who explored it in 1793. The name
104-490: Is Brythonic Celtic for "valley thick with oaks". Matthew Flinders placed the name "Derwent River" on all of the river. The name "River Derwent" was officially endorsed on 20 May 1959. The River Derwent valley was inhabited by the Mouheneener people for at least 8,000 years before British settlement. Evidence of their occupation is found in many middens along the banks of the river. The first European to chart
130-612: Is on Elizabeth Street built in 1841. Second oldest is the Harrington Street Bridge built in 1844. Third oldest is the Molle Street Bridge built in 1866. This article about a river in Tasmania is a stub . You can help Misplaced Pages by expanding it . River Derwent (Tasmania) The River Derwent , also known as timtumili minanya in palawa kani , is a significant river and tidal estuary in Tasmania, Australia . It begins its journey as
156-780: The Derwent is the 113,000-tonne (111,000-long-ton), 61-metre (200 ft) high, ocean liner Diamond Princess , which made her first visit in January 2006. At points in its lower reaches the river is nearly 3 kilometres (1.9 mi) wide, and as such is the widest river in Tasmania. The Derwent estuary contains dozens of white sandy beaches, many of which are staples of local activity within Hobart suburbs and include Bellerive Beach , Blackmans Bay Beach , Howrah Beach , Nutgrove Beach , Lords Beach , Long Beach , Taroona Beach , Hinsby Beach , Kingston Beach and Windermere Beach. Until
182-468: The Derwent, preys on not only the fish eggs, but also on the sea squirts ( ascidians ) that help to form the substrate that the fish spawn on. Several bridges connect the western shore (the more heavily populated side of the river) to the eastern shore of Hobart – in the greater Hobart area, these include the five lane Tasman Bridge , near the CBD, just north of the port; the four lane Bowen Bridge ; and
208-617: The Hobart central business district. As a result of urban development, the natural course has been altered significantly. The lower portion of the rivulet has been piped through the city and runs below the central city area. The rivulet emerges again near the Royal Hobart Hospital on Collins Street before flowing underneath the Cenotaph and emptying into the Derwent. The rivulet descends 544 metres (1,785 ft) over its 7.3-kilometre (4.5 mi) course. Regular tours of
234-490: The Meadowbank, Cluny, Repulse, Catagunya, Wayatinah, Liapootah and King William lakes or lagoons. The Upper Derwent is affected by agricultural run-off, particularly from land clearing and forestry. The Lower Derwent suffers from high levels of toxic heavy metal contamination in sediments. The Tasmanian Government -backed Derwent Estuary Program has commented that the levels of mercury , lead , zinc and cadmium in
260-457: The banks of the Derwent were covered by forests and frequented by Aboriginal Tasmanians . With the arrival of European settlers, the area saw agricultural development and the construction of dams for hydro-electricity generation during the 20th century. Today, the Derwent's catchment area is characterised by agriculture , forestry , and hydropower generation. It serves as a vital source of water for irrigation and urban supply, notably providing
286-644: The coast until leaving for New Guinea on 3 July. Hayes was the first European to land on Rossel Island . Hayes participated in several conflicts the EIC was involved in, including the Second Anglo-Mysore War , Third Anglo-Mysore War , Napoleonic Wars (including the invasion of Java ) and First Anglo-Burmese War . He died in the Cocos (Keeling) Islands in the Bay of Bengal while en route to Calcutta at
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#1732776344320312-535: The construction of several hydro-electric dams between 1934 and 1968, the river was prone to flooding. Now there are more than twenty dams and reservoirs used for the generation of hydro-electricity on the Derwent and its tributaries, including the Clyde , Dee , Jordan , Nive , Ouse , Plenty and Styx rivers. Seven lakes have been formed by damming the Derwent and the Nive rivers for hydroelectric purposes and include
338-709: The mean annual flow is 90 cubic metres per second (3,200 cu ft/s). The large estuary forms the Port of the City of Hobart – the deepest sheltered harbour in the Southern Hemisphere . Some past guests of the port include HMS Beagle in February 1836, carrying Charles Darwin ; the USS ; Enterprise ; USS John C. Stennis and USS Missouri . The largest vessel to ever travel
364-626: The most northerly crossing is at Derwent Bridge , before the river reaches its source of Lake St Clair . At the Derwent Bridge crossing, the flow of the river is generally narrow enough to be stepped across. The river is the subject of the multimedia performance "Falling Mountain" (2005 Mountain Festival), a reference to the mountain in the Cradle Mountain-Lake St Clair National Park from which
390-436: The river during months in winter and spring when their migration takes place. Some females even started using calm waters of the river as a safe ground for giving birth to their calves and would stay over following weeks after disappearance of almost 200 years due to being wiped out by intense whaling activities. In the winter months of 2014, humpback whales and a minke whale (being the first confirmed record of this species in
416-439: The river exceed national guidelines. In 2015 the program recommended against consuming shellfish and cautioned against consuming fish in general. Nutrient levels in the Derwent between 2010 and 2015 increased in the upper estuary (between Bridgewater and New Norfolk) where there had been algal blooms . A large proportion of toxic heavy metal contamination stems from legacy pollution caused by major industries that discharge into
442-639: The river including Nyrstar Hobart , a historic smelter establish at Lutana in 1916, and the Norske Skog Boyer paper mill at Boyer which opened in 1941. The Derwent adjoins or flows through the Pittwater–Orielton Lagoon , Interlaken Lakeside Reserve and Goulds Lagoon, all wetlands of significance protected under the Ramsar Convention . In recent years, southern right whales finally started making appearance in
468-612: The river rises. The Derwent is mentioned in the song, Mt Wellington Reverie by Australian band, Augie March . Hobart is located in the foothills of Mount Wellington . John Hayes (explorer) Commodore Sir John Hayes (February 1768 – 3 July 1831) was an English naval officer and explorer. He served in the Bombay Marine of the East India Company (EIC). Hayes was born in Bridekirk , Cumberland ,
494-472: The river was Bruni d'Entrecasteaux , who named it the Rivière du Nord in 1793. Later that same year, John Hayes explored the river and named it after the River Derwent , which runs past his birthplace of Bridekirk , Cumberland . When first explored by Europeans, the lower parts of the valley were clad in thick she-oak forests, remnants of which remain in various parts of the lower foreshore. There
520-710: The river) have been recorded feeding in the River Derwent for the first time since the whaling days of the 1800s. The rare spotted handfish ( Brachionichthys hirsutus ), whose only habitat is in the Derwent estuary and surrounds, was the first marine fish to be listed as critically endangered in the IUCN Red List , in 1996. The fish is threatened by the Northern Pacific seastar's invasion into southern Australian waters . The Northern Pacific seastar ( Asterias amurensis ), now firmly established in
546-559: The rivulet once took place under the CBD. The sandstone Wellington Bridge (1841) over the rivulet lies under the Elizabeth Street Mall , and is visible through a viewing portal there. The rivulet was an important source of drinking water for the Mouheneener Aborigines , and later for the first European settlers. The site for Hobart was originally chosen in part due to the availability of fresh water from
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#1732776344320572-595: The rivulet. Because of the pure water of the upper portion of the rivulet, the Cascade Brewery was built beside it. There were several typhoid epidemics during the late 19th century due to poor water quality further downstream. It was also an important source of energy for early industry in Hobart. There are multiple old bridges over the Hobart Rivulet. The oldest is the Wellington Bridge that
598-544: The son of Fletcher Hayes and Elizabeth Martin. On 7 December 1781, at age of 13, he joined the Bombay Marine as a midshipman on HCS Bombay , a 24-gun grab . On 6 February 1793, Hayes sailed from Calcutta on a private trading voyage with two chartered merchantmen, the 14-gun Duke of Clarence and the armed snow Duchess . The goal of the voyage was to collect nutmeg from New Guinea . However, on passing Timor , due to adverse winds he decided to navigate around
624-518: The south coast of Australia and resupply with wood and water at Adventure Bay, Tasmania . He spent some time exploring the area of the River Derwent , unaware that it had already been charted by Antoine Bruni d'Entrecasteaux . Hayes named many geographic features, generally using the names of EIC officers or his shipmates. Some of these names survive to the present day, including the River Derwent itself and Risdon Cove . Leaving Tasmania on 9 June, he arrived at New Caledonia on 28 June and explored
650-684: The two lane Bridgewater Bridge and Causeway . Until 1964 the Derwent was crossed by the unique Hobart Bridge , a floating concrete structure just upstream from where the Tasman Bridge now stands. Travelling further north from the Bridgewater crossing, the next crossing point is the Blair Street Bridge at New Norfolk , slightly north of the point where the Derwent reverts from seawater to fresh water , Bushy Park , Upper Meadowbank Lake , Lake Repulse Road, Wayatinah , and
676-669: Was a thriving whaling industry until the 1840s when the industry rapidly declined due to over-exploitation. Formed by the confluence of the Narcissus and Cuvier rivers within Lake St Clair , the Derwent flows generally southeast over a distance of 187 kilometres (116 mi) to New Norfolk and the estuary portion extends a further 52 kilometres (32 mi) out to the Tasman Sea. Flows average in range from 50 to 140 cubic metres per second (1,800 to 4,900 cu ft/s) and
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