Riverine and flash flooding information for the Prosser River and surrounding minor waterways

Version 2.1 October 2025 – PDF version

 若要更詳細地查看地圖，, 查看塔斯馬尼亞策略性洪水圖.

Tasmanians need to prepare for flood events that may not happen often as well as the minor flooding they may have experienced.

When there is heavy intense rain the Prosser River and surrounding waterways can flood

• properties and roadways in and around Orford township
• some properties in areas outside Orford township
• the Tasman Highway and other roads
  • Between Orford and Buckland
  • North of Orford
  • West of Buckland
  • To the South of Orford.

Flood can isolate communities and properties along the coast for a short time, depending on where the rain falls and how heavy it is. All routes in and out of Orford, Buckland and surrounding areas may be cut in a major flooding event.  Flood waters, landslips or fallen trees can also cut backroads, making it dangerous to drive in isolated areas.

Waterways in the area are short, so flooding is likely to be for hours rather than days after rain stops. If you are safe at home or elsewhere, it is usually best to stay where you are until the flooding subsides. If you need to evacuate, you should leave early, before flood waters rise. If you need to evacuate, pick up children from school or travel for some other reason, you should do so early, before flood waters rise.

Flooding around Orford is more likely at high tide. The area is prone to coastal inundation.

The maps in this guide show the level of flooding that has a 1% chance of happening any year due to riverine flooding from

• the Prosser River and nearby minor waterways
• Stormwater run-off (overland flow) from heavy local rain, and
• coastal inundation.

You are likely to experience flooding such as that shown in the maps in your lifetime.

Even if your home is not flooded you should prepare for

• isolation
• 潛在的電力和電信中斷。.

Check TasALERT.com or listen to ABC local radio for warnings and advice –
Triabunna area: ABC Radio Hobart 90.5FM or 936 AM

Note areas outside townships may lack mobile internet and local radio coverage.

您有洪水風險嗎？

Past flooding events around Orford and the Prosser River include:

• June 2016 when up to 220mm fell over 72 hours
• June 2009 when extensive East Coast flooding caused a landslide at Paradise Gorge, and other routes in and out of Orford were cut
• August 1970 when up to 120mm fell in 24 hours
• May 1969 when up to 180mm fell in 48 hours.

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

物料清单問題 a Severe Weather Warning and/or Thunderstorm Warning for heavy rainfall that may lead to flash flooding 每當 大雨 is expected in an area. The time between the warning and heavy rain occurring can vary from an hour to 24 hours or sometimes more.

BoM may issue a Flood Watch for southern rivers when predicted weather might cause floods over the next couple of days. The Flood Watch may include generalised areas when there is a risk of significant rainfall.

TasWater operate gauges on the Prosser dams which measure river flow, however, these are too close to the township to provide useful warning information.

降雨監測與觀測

The Mt Koonya Radar is useful for real-time situational awareness of where heavy rainfall is falling.  Radar Rainfall estimates help to fill in gaps where there are no rainfall stations.

Rainfall stations at Orford, Triabunna, Buckland, Grindstone north of Triabunna and Nugent may provide useful observations, but rainfall can vary across the area. Tasmania’s East Coast is prone to flash flooding from intense rain so there may be little warning.

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。.

洪水水位

While no two floods are the same, the following describes what you can expect at different flood levels around the area. Even if your property is not flooded, you need to think about access. Different levels of rainfall can cause flooding depending on its

• intensity
• duration
• how wet the ground is beforehand, and
• where the rain falls.

奧福德

Note flooding in places along the Tasman Highway may isolated the Orford area, even in locally more minor events.

In minor flood events

• Riverine flood water and storm water run-off may reach some building floor levels and impact low-lying paths, parks and backyards.
• 潛在洪水地區的牲畜應移至較高地帶。.

中度洪水 in and around Orford

• May mean water starts to enter some homes and other buildings
• There is a risk the Tasman Highway near the golf course is inundated.

A major flood event around Orford

• May be for example due to heavy rainfall in the river catchment of about
  • 51mm in 3 hours
  • 74mm in 6 hours
  • 110mm in 12 hours.

  • 197mm in 48 hours

• Is likely to inundate all access routes to/ from Orford, isolating the town
• Isolate parts of the town divided by river crossings
• Inundate low-lying areas of the town around
  • The Esplanade, Gore Street, Cross Street and nearby Walpole Street, plus some parts of Murphy Court
  • Riverside Drive and surrounds

  • the end of Walters Drive and Rudolf Ave

• Cause storm water run-off that may flood other areas of the town, for example.

Buckland and inland areas along the Prosser River and its tributaries

Buckland township is not at risk from riverine flooding, but in the major event:

• Stormwater run-off (overland flow) can affect some properties if there is very heavy intense rain
• The northern and southern sides of the township, and properties to the north along Buckland Road may become isolated for a short time.
• Floodwaters are likely to cut the Tasman Highway to the east and potentially the West of the township.
• Floodwater may impact Stonehurst Road and at least one property.

Areas to the south of Orford

Stormwater run-off (also known as overland flow) may impact parts of

• Shelley Beach
• Spring Beach
• Rheban Road, Wielangta Road and minor roads in the area.

This stormwater runoff is likely to be fast flowing but generally shallow and likely to last only a short time once rain has stopped.

 

 

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

Local Emergency Broadcasters ABC 936AM

Glamorgan Spring Bay Council phone 03 6256 4777

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.