Riverine flooding information for South Esk, North Esk and Tamar Rivers

Version 1.1b July 2026 – Download PDF version

Map 1 – City and East Launceston Levee protected areas during a 1% Annual Exceedance Probability (AEP) flood event.

*AEP is a term used to the express the percentage of likelihood of a flood, of a given size or larger, occurring in a given year

Map 2 – The City and East Launceston areas if a failure of the levee occurred at 1% AEP. A flood frequency greater than 1% AEP will overtop the existing levee system and increase the flood extent.

*AEP is a term used to the express the percentage of likelihood of a flood, of a given size or larger, occurring in a given year

介紹

Flooding often happens in Tasmania and can cause widespread and significant damage. In the past 200 years there have been 78 flood related deaths in Tasmania. This guide is to help you understand flood risk in the City and East Launceston areas and provide you information on what you can do to prepare for, respond and recover from a major flood.

The maps at the start of this document are there to provide an understanding of the impact of a major flood should the flood levee’s fail or overtop.

The river edge areas of City and East Launceston are subject to flooding from the:

• South Esk River;
• North Esk River; and
• the kanamaluka / Tamar River Estuary.

Major flooding of the South Esk River is the greatest risk to the City and East Launceston levee protected areas. A combined South Esk and North Esk flood event would increase the risk of flooding.

The City Levee reduces flood risk for the city river edge areas. The East Launceston Levee reduces flood risk for the lower East Launceston area adjacent to the floodplain.

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 and East Launceston may flood quickly. Flood waters may isolate other areas.

The State Emergency Service, Tasmania Police and the City of Launceston have worked to identify Critical Decision Points for early evacuations and other actions to keep people safe in a major flood event. These are outlined further in this document.

If the South Esk River is predicted to reach a certain flood height a directed mandatory evacuation of the levee protected areas will commence.  If you stay, you could put yourselves and others at risk.

If an evacuation is called, services such as electricity, water and gas will be switched off to reduce hazards and protect assets so services can be restored as soon as possible when flood waters go down.

If you live, work, or visit these areas it is important that you follow all instructions during a flood event, especially warnings to evacuate the area early.

如果你有寵物，如果你能，你就應該帶牠們一起去。.

If you can, it is best to stay with family or friends in a safer place while your home is at risk of flooding. 

If you have nowhere to go, there is likely to be an 銀頂體育館已開放作為疏散中心 - Prospect Vale, Oakden Road 55 號.

Keep checking 塔斯警報 或在洪水期間收聽 ABC 本地廣播以獲取重要資訊。.

SES, City of Launceston and/or Tasmania Police can also provide information on where to go and how you can get there.

In such flooding events, some areas may also be isolated due to flooding of the low lying areas, roads may have flood waters across them. It is dangerous to drive through flooded roads, particularly in isolated areas. It is recommended to find an alternative route.

If the levees fail or are overtopped, people who did not evacuate early when directed:

• put their lives and the lives of others at risk due to the likely rapid flooding of some buildings and roads, the flooding of evacuation routes, and the isolation of other areas from help;
• cannot expect to have access to emergency services such as ambulance, police, fire, or SES;
• cannot expect to have services such as electricity, gas, water, sewerage or telecommunications;
• may be exposed to waste water as the sewerage system will be overwhelmed with water and not function;
• all utility services may be unavailable for an extended period after a flood.

檢查 TasALERT.com 於洪水事件期間獲取關鍵資訊.

您有洪水風險嗎？

一個%年超越機率（AEP）的洪水事件，在任何一年發生的機率為%。您可以預期一生中至少會遇到一次這種頻率的洪水。.

Newstead and Launceston have a long history of flooding.  Since European settlement:

• 1852、1863 和 1893 年是朗塞斯頓（Launceston）有紀錄以來的嚴重洪水事件。.
• 1929 年是有記錄以來最嚴重的洪水，對一千多戶房屋和建築物造成損壞，有些甚至被沖離地基。峽谷區的兩座懸索橋也受損。有四千人從因佛邁、因佛斯克和瑪格麗特街地區疏散。為應對這次洪水，直到 1940 年，朗塞斯頓才恢復元氣。1929 年的洪水促成了堤防的興建。.
• 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？

• • 檢查地圖，看看您的住宅或企業是否可能遭受洪水侵襲。.

• • 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。.

• • 準備一份居家緊急計畫。考慮是否需要在大水來臨前撤離。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。.

• • If you are a primary producer, the Farm Flood Readiness Kit provides advice on preparing for a flood to help protect your business and stock.

• • If you run a business or other organisation, check out the Tasmanian Government’s Emergency Ready Business tool online

• • 如果你可能被隔離且必須取得服務，你可能需要提早撤離。.

• • 如果你在容易發生洪水的地區露營，請確保隨時掌握最新資訊，並且在可能發生洪水時及早移往高處。.

像地圖所示的洪水，或更糟的洪水，將會再次發生。沒有兩次洪水是相同的。.

如果您居住在低窪地區或靠近水道，您的房屋可能會被淹沒。即使您的住所安全，您也可能需要繞過淹水地區，或者您的道路通行可能會被阻斷。切勿駕車進入或身處洪水之中。道路和橋樑可能會被沖毀或不安全。洪水期間請避免出行。.

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 for the South Esk River. A Flood Watch may:

• 適用於特定區域，例如 南埃斯克河 集水區，或
• 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 heightsfor the South Esk River.  Flood gauges along the rivers provide warnings of flood heights and the possible impacts in Launceston. Tides can also add to the flooding risk of the river edge areas Launceston.

關鍵決策點

北埃斯克河和南埃斯克河有預先確定的觸發條件以宣布撤離。塔斯馬尼亞州警察和緊急事務管理署將發布撤離通知。.

Evacuation Decision Point – Water volume flowing at the South Esk River at Trevallyn Dam

• Mandatory Evacuation – BoM Major Flood Warning – 131.24 mAHD or 2500 cumecs (m³/s)

隨時掌握最新警告和其他重要資訊，請前往 tasalert.com 或收聽ABC地方電台。BOM警報可在其網站上找到，網址為 塔斯馬尼亞天氣與警告 (bom.gov.au)

*什麼是立方米／秒的水？－一立方米／秒的水等於一秒鐘內流過某一點的一立方公尺的水。一立方公尺的水等於一千公升，重達一公噸。.

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

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 Bureau of Meteorology’s website.

	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。.

Flood levels at East Launceston and City areas

儘管沒有兩次洪水是完全相同的，但下表顯示了在東朗塞斯頓及市區堤防保護區內，不同洪水水位下的預期情況。即使您的住所未被淹沒，也需要考慮進出路線。.

Minor Flood Warning – South Esk River @ Trevallyn Dam 128.20 mAHD

• No residences at risk of inundation in the levee protected areas.
• No roads are affected by flooding.

Moderate Flood Warning – South Esk River @ Trevallyn Dam – 130.16 mAHD / 1600 cumecs (m³/s)

• No residences at risk of inundation in the levee protected areas.
• Henry Street will be flooded and will remain closed.
• Glebe Farm Road may be closed by levee gate closure.
• Roads close to the area may become inundated and this can also be influenced by the tides including:

  • 亨利街
  • Hoblers Bridge Road and
  • Station Road.

• West Tamar Highway may be impacted

Major Flood Warning – South Esk River @ Trevallyn Dam – 130.95 mAHD / 2250 cumecs (m³/s)

Mandatory Evacuation – 2500 cumecs (m³/s)

• Mandatory evacuation of residences being at risk of flood will commence if forecast flooding exceeds 2500 cumecs (m³/s) – the critical decision point.
• Areas at risk for evacuation:

  • Lower Charles Street
  • William Street, Esplanade
  • Shields Street
  • Lower St Johns Street
  • Tamar Street
  • Cimitiere Street
  • Boland Street
  • Willis Street
  • Lawrence Street
  • Innes Street
  • Racecourse Cresent
  • Dowling Street
  • Broadlands Drive

• Tasmania Police will direct an evacuation and secure the evacuated area.
• Hoblers Bridge Road is flooded and closed.
• Henry Street will be flooded closed.
• West Tamar Highway will be flooded and closed depending on the tide height.
• Charles Street Bridge will be closed and there will be restriction of through traffic to travel north of the city.
• There is the possibility for flooding to exceed the height of the levees. If this happens flood waters will enter Invermay and Inveresk.

Go to TasALERT.com or listen to ABC local radio for detailed up to date information and advice during heavy rainfall events.

了解你的風險，做好準備，盡可能降低風險，與他人聯繫，保持警惕並安全行動。.

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

Know your neighbours and get involved in your community. A connected community is a safer and more resilient community in an emergency and can help everyone recover better afterwards. Check that family and neighbours are safe and aware of what’s happening.

期間

5. 保持更新

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

You are responsible for your animals in an emergency. If you have pets and other animals it will take you longer to evacuate in a flood or other emergency. Move livestock from flood prone areas well before flood waters may rise. For more information see

• • 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。.

• • Do not turn on it is tested by a licensed electrician or gas fitter for safety.

• • 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

Current warnings – TasALERT.com

氣象局 

Emergency Broadcasters – 您當地的 ABC 電台

TASSES Social Media – facebook.com/sestasmania

為洪水緊急情況做準備 ses.tas.gov.au/flood-plan/

國家轉接服務 (NRS) relayservice.gov.au

朗塞斯頓市議會   6323 3000 朗塞斯頓市緊急事務管理中心

Local Emergency Broadcasters                   ABC 91.7FM

 

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.