Riverine flooding and flash flooding information for communities and properties in Launceston outside the levee protected areas

For levee protected areas, see the related flood guides for

• 新市鎮
• 因弗梅
• East Launceston and Launceston CBD, and
• Launceston – Margaret St area.

Version 1.0 April 2026

This flood guide is for people in the areas of Launceston not protected by levees.  Even if your home is not flooded, everyone around Launceston would be impacted by a major flood in the city. This guide also covers minor and moderate flooding, plus flash flooding in all areas of the city.

Parts of Launceston can flood from the

• kanamaluka / River Tamar Estuary
• North Esk River
• South Esk River.

There are also some minor waterways that can flood properties and roadways.

Launceston levee protected areas

Launceston’s levees reduce flood risk for many areas along the major rivers. However, there is no guarantee the levees will withstand a major flood. Experiences in other countries show that levees can fail, both gradually and suddenly. If the levees fail, low lying parts of the city may flood quickly. In major floods, people in the levee protected areas should evacuate in case

• the levees fail, or
• flood waters overtop the levees.

Please see the related flood guides for the levee protected areas of

• 新市鎮
• 因弗梅
• East Launceston and Launceston CBD, and
• Launceston – Margaret St area.

These guides for the levee protected areas have important information about

• triggers for evacuation in major flood events
• how to evacuate, including evacuation routes to use.

If the North and/or South Esk Rivers may reach certain heights, these areas will have:

• A voluntary evacuation warning – where people are advised to leave for their safety
• A mandatory evacuation warning – where people should leave those areas for their safety, and so gas, electricity and water can be cut for those areas.
• In major flood events, people outside flood prone areas need to be aware that
• Major traffic routes through the city may be cut
• Traffic is likely to be very heavy
• There may be cuts to some essential services, such as water treatment.
• There may be cuts to some other services as major transport routes are cut.

Areas that can flood outside the levee protected areas

Rivers can flood some areas outside the levee protected areas. High tides can also increase water levels in areas closer to the River Tamar.

North Esk River surrounding low-lying areas

• Corra Linn, Patersons Island scout camp and nearby historic fishponds plus some homes
• St Leonards around
  • 車站路
  • Hoblers Bridge Road
  • Waverley Road
  • Ravenswood Road
• Norwood and Newstead areas outside the levee protected area, including the caravan park on Sandown Road (Old Mac’s Farm)
• Waverley – Boomer Road

South Esk and River Tamar low-lying surrounding areas

• Cataract Gorge Reserve – First Basin
• Seaport Precinct
• Kings Wharf area
• West Tamar Highway area

Other low-lying areas exposed to flash flooding/ overland flow

Flash flooding is flooding that happens very soon after heavy rain falls. There can often be little warning aside from a general severe weather warning.  There are many minor waterways around Launceston that can flood quickly. Low-lying areas that can flood due to flash flooding or overland flow include parts of

• Relbia near Jinglers Creek
• Kingsmeadows/ Punchbowl
• Newnham – from flash flooding from Newnham Creek and Barnards Creek
• South Launceston
• Waverley
• Faraday Street from Distillery Creek
• Ravenswood Road from Distillery Creek/ North Esk River.

If there is very intense rain, there can be storm water run-off that can affect buildings and roads in any area.

Areas surrounding Launceston

For information about flooding in surrounding areas, see nearby related guides for:

• Lilydale and surrounds
• Nunamara and surrounds
• Hadspen/ Blackstone Heights

您有洪水風險嗎？

The Launceston area has a long history of flooding.  Since European settlement

• 1852, 1863 and 1893 had serious flood events recorded for Launceston.
• 1929 was the most severe flooding recorded in modern history. Over a thousand homes and buildings were damaged, with some swept from their foundations. The two suspension bridges over the Gorge area were damaged. Four thousand people were evacuated from Invermay, Inveresk and Margaret Street areas. It was not until 1940 that Launceston recovered from the flood. The 1929 floods provided incentive to build the levees.
• 2016 年 – 朗塞斯頓為一場重大洪水事件做好了準備，並關閉了一些堤防。先前對堤防系統的升級，若先前老化的堤防失效，原本約可避免 $2.16 億美元的損失。.
• 2022年 – 朗塞斯頓僥倖逃過一場嚴重的洪水事件。.

我應該做什麼？

• Check the map to see whether your home or business could flood. For more detailed flood maps, see www.launceston.tas.gov.au/Emergency-Management-Hub/1.-Understand-your-risk/Flood to
  • Check the Launceston Flood Maps to assess your level of riverine flood risk.
  • Check the Urban (Stormwater) Flooding Map for flash flooding storm water flood maps.
  • Find out more about Launceston’s flood levees.
• 評估您的住家或公司，並做好準備以盡量減少潛在的洪水損害。.
• 檢查您是否能在洪水期間安全地抵達家中、工作地點或學校。.
• 準備家庭緊急應變計畫。請參閱 為緊急情況做好準備 – A guide for individuals and households to prepare for emergencies. If you run a business around Launceston, check out the support by Business Tasmania to prepare for emergencies.
• 如果你可能被隔離且必須取得服務，你可能需要提早撤離。.

像圖中所示的洪水，或更糟的洪水，將會再次發生。沒有兩次洪水是完全一樣的。.

If you live in a low-lying area or near a watercourse, your house may flood. Even if your home is safe, you may need to detour around flooded areas or your road access may be cut. Be prepared that utility services such as power, gas and water may be lost and there may be interruptions to sewage service. Never drive into or enter flood waters. Roads and bridges may be washed out or unsafe. Avoid travel during floods.

知道該怎麼做可以拯救你的生命並保護你的財產。制定家庭緊急計畫是最好的準備方法之一。決定天氣和降雨的觸發條件，以便採取行動。.

氣象局 (BoM) 預報、警報和觀測

國民黨發布了一份 洪水注意 when predicted weather might cause floods in the area. A Flood Watch may:

• 適用於特定區域，例如 南埃斯克河 catchment, for example, or
• 可擴展為例如 中部北部河流流域

物料清单问题 洪水警告 with specific flood heights for the South Esk and North Esk Rivers.  Flood gauges along the rivers give warnings of

• flood heights, and
• the possible impacts in Launceston.

High tides can also add to flooding.

The Bureau will issue Minor, Moderate or Major flood warnings when the North Esk or South Esk Rivers are likely to reach certain heights.  The table below also shows the trigger levels for SES to issue evacuation warnings due to flooding from these rivers.

River gauge sites	未成年	適中	Major flood	Evacuation Critical Decision Points
North Esk River @ Corra Linn	2.7 mAHD 80 m³/s	3.6 mAHD 200 m³/s	4.9 mAHD 419 m³/s Approx. 20% AEP	6.1 mAHD 800 m³/s About 2% AEP Newstead Levee Protected Area (LPA)
South Esk River @ Trevallyn Pond	128.2 mAHD approx. 420 m³/s > 20% AEP	129.9 mAHD approx. 1500 m³/s Approx. 10%AEP	130.9 mAHD approx. 2,000 m³/s Approx. 5% AEP	2250 m³/s Between 2%-1% AEP Invermay /Inveresk Levee Protected Area
				2500 m³/s – Between <1% AEP City /East Launceston Levee Protected Area
				3500 m³/s – Between >1% AEP Margaret Street Levee Protected Area

Notes:

• m³/s (cumec) – one cubic meter of water flowing past a point in one second. One cubic meter of water equals one thousand litres and weighs one tonne.
• Annual Exceedance Probability (%AEP) is the likelihood of such an event happening any given year, based on historical records up to 2016. With climate change, this likelihood is changing.  Updates of this data is underway.
• mAHD – Metres above height datum. This is a local height for the gauging site.

了解警告和關鍵資訊

隨時留意周遭狀況。定期查看天氣預報、觀測數據和警報。.

• TasALERT.com
• 您當地的 ABC 電台 或
• 這 氣象局 網站.

	建議 (黃色)： 已發生事件。目前沒有立即危險。請隨時更新最新情況，以防局勢變動。.
	觀察與行動（橘色）： 威脅等級升高。情勢正在改變，您現在就必須採取行動保護您和您的家人。
	緊急警告（紅色）： 緊急警報為最高級別的警報。您可能身處危險之中，需要立即採取行動。任何延誤都可能危及您的生命。.
	社群更新（藍色）： 針對特定事件或事故，向受影響社群提供的具體資訊和最新消息。.
	事件（白色）： 事件是緊急警報發布前的初步發生。一旦事件被報告，TasALERT 就會發布基本資訊，包括事件的類型和地點。.

更多資訊請參閱 www.ses.tas.gov.au/warnings/ .

洪水水位

雖然沒有兩次洪水是完全相同的，但以下描述了該地區在不同洪水水位下可能發生的情況。即使您的房產沒有被淹沒，您也需要考慮進出問題。不同程度的降雨都會導致洪水，這取決於降雨的強度、持續時間，以及事先的土壤濕度以及降雨發生的地點。.

Minor Riverine flooding from North Esk/ South Esk and Tamar Rivers

North Esk at Corra Linn at least 2.7m

• Agricultural land/ riverside parklands, for example, St Leonards picnic ground
• Possible road closure – Henry Street
• Low-lying properties near the river on:
  • 車站路
  • Henry Street
  • Killafaddy Street
  • Old Mac’s Farm Caravan Park on Sandown Road
  • Western railway line and yards
  • Scotch Oakburn Park and Queechy Park

• South Esk at Trevallyn Pond at least 128.2m
• Agricultural land/ riverside parklands e.g. Cataract Gorge Reserve and Gorge Swimming Pool, Home Point Parade surrounds
• Kings Wharf
• Seaport Home Point Parade low lying areas
• West Tamar rowing club
• Henry Street area
• Flood waters may begin to impact the south-bound lane of the West Tamar Highway, with traffic diverted to alternate routes.

Moderate flooding from North Esk/ South Esk and Tamar Rivers

• Many levee flood gates will close, restricting movement through the city.  Major routes to close across the river include:
• West Tamar Road
• Henry Street

North Esk at Corra Linn at least 3.6m

As per minor flooding, plus

• Station Road roadway and further low-lying properties near the river
• Henry Street further areas and low-lying properties
• Scotch Oakburn College oval/ workshop
• Hoblers Bridge Road and Netball Centre
• Low-lying properties on Killafaddy Road
• Low-lying properties on Glenwood Road
• Bill Grove roadway, Mowbray.
• South Esk at Trevallyn Pond at least 129.9m
• As per minor flooding plus
• West Tamar Highway both lanes diverted through side streets
• Seaport Boulevard
• There will be some impacts around Henry Street and other areas on the lower North Esk River
• 1600 m3/s @ Trevallyn Pond – voluntary evacuation parts of Invermay (see Invermay flood guide)
• Bill Grove roadway, Mowbray.

Major riverine flooding from North Esk/ South Esk and Tamar Rivers

North Esk at Corra Linn at least 4.9m (Approx 20% AEP)

As per moderate flooding, plus:

• Hart St flood levee closed, parts of Invermay levee closed
• Railyard flood gates are closed
• Blessington Road South Esk River crossing
• Further properties on Station Road
• Larmenier School grounds near the river
• Various sewage pump stations may be impacted
• Johnson Road/ Station Road
• 800 m3/s @ Corra Linn- Newstead – Hart St area mandatory evacuation (Approx 2%AEP)
• South Esk at Trevallyn Pond at least 130m (2000 m³/s)
• As per moderate flooding plus
• 2250 m³/s – Invermay Mandatory evacuation – see Invermay flood guide
• 2500 m³/s – Invermay levees may overtop. Mandatory evacuation of parts of Launceston city centre – see the flood guides for Launceston and East Launceston/ Launceston – Margaret Street area,
• Parts of Seaport area, Kings Wharf flooded
• Other areas – flash flooding from minor waterways (1-2%AEP)
• Flash flooding from minor waterways can happen quickly, with little specific warning. Areas at risk include
• Relbia Road bridge and some low-lying properties along
  • Relbia Road
  • Redwood Crescent
  • Oppossum Road
  • Glenwood Road.
• Kings Meadows near Kings Meadows Rivulet, including Hobart Road
• South Launceston low lying areas near Margaret Street/ Bathurst Street, including Midland Highway near the Wellington Street junction, and nearby low-lying properties
• Newstead low-lying roadways and properties, particularly near Robin Street
• East Launceston roadways and properties around Dowling St.
• Newnham, Lilydale Road and Bell Bay railway line at Barnards Creek crossing, plus several properties.

The maps in this guide show the level of flooding that has a 1% chance of happening any year, both with levee protecting some areas, and if the levees fail or are overtopped. They do not show overland flow/ rainwater run-off. Unless there is a severe storm bringing very heavy rain, the main flooding risks for Launceston are from the city’s major rivers.

Launceston’s two major river systems may flood at the same time and may have different levels of flooding during the same event. The kanamaluka/River Tamar is tidal and may also affect the flooding height.

You are likely to experience flooding such as that shown in the maps in your lifetime. Tasmanians need to prepare for flood events that may not happen often as well as the minor flooding they may have experienced.

In a major flood event, closed levee gates and flooded roads can cut the city of Launceston in three until waters recede:

1. The Central Business District and areas to the south of the city centre
2. Areas to the North and North East of the North Esk River/ Tamar
3. Trevallyn/ Riverside area to the West and North West of the Tamar River

Depending on rainfall in surrounding areas, there may be alternative routes. However, traffic is likely to be very heavy.

Even if your home is not inundated, you should be prepared for

• major traffic routes through the city to be cut, and
• 潛在的電力和電信中斷。.

If some areas there is a mandatory evacuation order for levee protected areas, electricity, water and gas will be switched off to

• reduce hazards, and
• protect assets so they can be restored as soon as possible after the event.

Travel in the area is likely to be difficult or impossible until

• roads are clear, and
• flood gates are reopened. 

If you are safe at home or elsewhere, it is usually best you stay where you are until the flooding subsides, unless there is an emergency. If you need to evacuate, you should leave early, before flood waters rise.

洪水之前

為緊急情況做好準備 – 為個人和家庭準備應急措施的指南。. 

1. 認識你的風險

塔斯馬尼亞經常發生洪水，可能造成廣泛且嚴重的損害。在過去 200 年裡，塔斯馬尼亞有 78 人死於與洪水相關的事件。本指南旨在幫助您了解您所在地區的洪水風險。.

2. 準備您的家戶

制定包含風暴和洪水應變計畫

思考一下在風暴或洪水來襲時你會怎麼做，意味著你準備得更充分，每個人都會更安全。制定一個家庭中的每個人都理解的緊急計畫。有檢查表可以幫助你思考你的計畫——請參閱 為緊急情況做好準備 – 為個人和家庭準備應急措施的指南。.

定期檢查您的計劃，並讓家中的每個人都設想一次可能影響您家的洪水情況來進行測試。.

準備一個緊急救生包

定期測試收音機和手電筒的電池。.

3. 在可能的情況下，降低您遭受洪水侵襲的風險

• 在購買、維護或開發房地產時，請考慮風暴、洪水和其他災害。.
• 修剪或移除您家中、商家或您家附近有電力線的樹木和樹枝。.
• 保持您的排水溝和排水管暢通。.

4. 與他人建立聯繫

認識你的鄰居並參與你的社區。一個緊密的社區，在緊急情況下更安全、更有韌性，並有助於每個人在事後更好地恢復。檢查家人和鄰居是否安全，並了解正在發生的事情。.

請參見例如 荷恩谷鄰里互助計畫.

期間

5. 保持最新

隨時留意周遭狀況。定期查看天氣預報、觀測數據和警報。. 

• 塔斯警報 
• 您當地的 ABC 電台 或
• 這 氣象局 網站.

6. 保持安全

• 監督兒童.
• 為可能的停電、停水或斷網做好準備。.
• 檢查您的緊急救助包是否已準備就緒。.
• 切勿靠近淹水區域，例如排水溝。. 永不 在洪水中有行走、玩耍、骑行或开车。你無法確定水下有什麼，或水有多深、流速有多快。20公分的湍急的洪水就很容易將人沖走並淹死。洪水可能很危險。.

您的房屋可能發生淹水時

• 將家居物品放在高處，以盡量減少潛在損壞。.
• 如果安全的話，請關閉水電和瓦斯。. 
• 一種防止污水倒灌回屋內的好方法是將沙包放入塑膠袋中，然後用它們來堵塞馬桶、蓋住排水孔和水槽。.
• 趁你還能安全脫困時趕快離開。.

如果你需要疏散

• 請遵循 SES / 塔斯馬尼亞警方的建議。.  
• 帶上你的緊急求生包。. 
• 前往朋友或家人較安全的地方，或前往疏散中心。. 
• 讓別人知道你去了哪裡。.

照顧好你的動物

在緊急情況下，您有責任照顧您的動物。如果您有寵物和其他動物，在洪水或其他緊急情況下，疏散的時間會更長。在洪水可能上漲之前，請及時將牲畜移離易受洪水影響的地區。更多資訊請參閱

• RSPCA 應對緊急情況動物的指南
• 這 主要生產者農場洪水準備工具箱.

請避免在風暴期間和風暴之後旅行

• 不要去觀光。觀光客會延誤緊急服務並造成事故。.
• 注意危險，例如
  • 路面积水
  • 損壞的電力線
  • 山崩
  • 損壞的道路
  • 倒下的樹木或屋頂鐵片。.
• 切勿駕車通過淹水區域。洪水中的大多數死亡和救援事件都與駕車通過淹水區域有關。.
• 緩慢行駛，並在不受洪水影響的道路上打開頭燈。.

之後

• 請持續收聽 ABC 地方電台的最新消息、道路重新開放、社區會議等資訊。.
• 如果您離開家，請勿在聯邦緊急事務局 (SES) 或塔斯馬尼亞警方告知您安全之前回家。.
• 注意道路上的危險，例如路面上的泥沙或碎屑、道路/橋樑損壞以及正在進行清理和修復工作的工人。.

如果您的房屋已受損

• 在檢查損壞時，請待在地面。小心掉落的樹木、碎玻璃、鬆動的屋頂或其它危險物品。.
• 穿著堅固的靴子、手套和防護服。. 
• 請使用手電筒，切勿在受洪水影響的建築物內使用火柴或蠟燭。. 
• 將所有飲用水煮沸，直到被告知自來水再次安全為止。.
• 在經註冊電工或燃氣技師測試安全之前，請勿開啟電力或燃氣。.
• 如果您的房屋受損，需要暫時住在其他地方，請攜帶您的緊急應變包和寵物一同前往。
• 如安全，請拍攝任何損壞的照片，並聯繫您的保險公司。.
• 監督兒童.
• 檢查鄰居是否安好。.

如需更多資訊，請前往 www.ses.tas.gov.au

保持獲取最新資訊及更多詳盡資料

目前的警告 (TasAlerts)                     TasALERT.com

氣象局                  www.bom.gov.au

緊急廣播員 ABC 91.7FM

TASSES 社交媒體 facebook.com/sestasmania

為洪水緊急情況做準備             ses.tas.gov.au/floodplan/               

朗塞斯頓市                                      Launceston.tas.gov.au       6323 3000

                                                                  朗塞斯頓市緊急事務管理中心

國家接力服務                   accesshub.gov.au

免責聲明

The maps show potential flooding risks from consistent levels of rainfall across catchments, such as a 1% Annual Exceedance Probability (AEP).  In flooding events, rainfall is likely to be more inconsistent across a catchment, so these flood maps should be considered indicative only.  The mapped areas of flood risk show higher probability of inundation. Other areas have lower probability of flooding, but in severe and rare events (rarer than 1%AEP), other lower areas may be also at risk of inundation.

本指南中的資訊在出版時是最新資料。儘管已盡一切努力確保所呈現數據的有效性和準確性，但州緊急服務部門不對數據錯誤或遺漏負責。請參閱標準 塔斯馬尼亞州政府的版權與免責聲明 更多詳情.