Riverine, flash flooding and coastal inundation information for communities along the D’Entrecasteaux Channel, including lunawani / Bruny Island

Draft for community input – email ses@ses.tas.gov.au .

若要更詳細地查看地圖，, 查看塔斯馬尼亞策略性洪水圖.

Storms often affect the D’Entrecasteaux Channel area, bringing heavy rain and damaging winds. Stormwater runoff and flash flooding can affect many areas during a severe storm. Areas that are prone to flooding from rivers (riverine flooding) are:

• Snug – low lying areas to the South of Snug River downstream of the Channel Hwy, mainly near the Esplanade North, Pybus St & Gillies St
• Adventure Bay – near Captain Cooks Creek.

In both cases flooding is more likely with storm surge at high tides.

All waterways in the area are short, and so river gauges cannot provide sufficient warning. Flash flooding can impact:

• Roadways at low-lying river crossings, including the Channel Highway for short periods in some places, the Huon Highway near Sandfly and Sandfly Road
• 6 properties in Margate near Margate Rivulet or North West Bay Rivulet
• Several shacks near the mouth of Captain Cooks Creek at Adventure Bay, Bruny Island.

Some properties may become isolated for short periods due to flooding across roads. Debris can also be washed across roads, blocking access for longer times.

There are some low-lying shoreline areas that are at risk of coastal inundation.  Coastal flooding is more likely during storm events at high tide. Areas at most risk include:

• the Esplanade Dru Point, Margate and Barretta waterfront areas
• Snug foreshore
• Lower Snug/ Old Station Rd, Conningham
• Bruny Island Main Rd near Great Bay and the Isthmus
• Adventure Bay near Captain Cooks Creek
• Dennes Point Nebraska Beach, and some areas of the Bruny Island Main Road near Great Bay and the Isthmus.

Coastal erosion can also impact some areas. This is more likely during storm/ flood events.

See the Tasmanian Strategic Flood Maps to view the flood maps in more detail. To check if your property is at risk of coastal inundation or erosion see alert.tas.gov.au/get-ready/risk-ready/. SES is currently adding riverine flood maps to TasALERT risk-ready.

The maps in this guide show the level of flooding from rivers or coastal inundation that has at least a 1% chance of happening any year (climate up to 2016). 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. Even if your home is not flooded, you should be prepared for isolation plus potential power and telecommunications outages. Depending on where the rain falls and how heavy it is, other access roads may also be impassable. Travel in the area is likely to be difficult or impossible until roads are clear.  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.

Go to tasalert.com or listen to ABC local radio 936AM for warnings and advice.

您有洪水風險嗎？

Aside from Snug river mouth and Adventure Bay near Captain Cook’s Creek, riverine flooding is not a concern for most areas around the Channel, but there is a long history of severe storms bringing heavy rain.  Severe storms causing storm water run-off and flooding issues happened, for example, in 1872, 1881, 1954, 1954, 1960, 1973, 1983, 1995, 1996, 2004, 205, 2010, 2011, 2015 and 2018.

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。.
• Prepare a Home Emergency Plan. See 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 may be isolated and you must have access to services, you may need to evacuate early. Think about what you might need to take.

Floods like the one shown in the map will occur again. No two floods are the same.

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. Unless there are landslips, trees down or debris over roads, most areas are likely to only be isolated for a few hours.

Never drive into or enter flood waters. Roads and bridges may be washed out or unsafe. Avoid travel during floods.

Knowing what to do can save your life and help protect your property. Having a Home Emergency Plan is one of the best ways to prepare. See 為緊急情況做好準備 – A guide for individuals and households to prepare for emergencies. Decide on weather and rainfall triggers for when to act.

中央氣象局預報、警報與觀測

The Bureau issues a Flood Warning, Severe Weather Warning and/or Thunderstorm Warning for heavy rainfall that may lead to flash flooding whenever heavy rain is expected in an area. The time between the warning and heavy rain occurring can vary from an hour to 24 hours or more.

There are no river level flood warnings for any rivers in the area – the short catchment means river gauge information would not provide enough warning time.

Check 雨量觀測 at Mt Wellington / kunanyi, Margate, Dennes Point and other nearby rain gauges. Given the very short warning times, it is best to act on the predictive BoM warnings rather than wait for any flood alerts during rainfall.

這 Mt Koonya Radar is useful to be aware in real-time where heavy rainfall is falling.  Radar Rainfall estimates can also fill in gaps in areas where there are no rainfall stations.

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）： an incident is the initial occurrence of an event before it becomes an emergency warning. As soon as an incident is reported, TasALERT published basic information including the type and location of incident.

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

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 and how wet the ground is beforehand and where the rain falls. Flooding is more likely at high tides around coastal areas. Weather systems producing heavy rain can also cause storm surge, coastal inundation and coastal erosion.

小範圍淹水

Minor flooding can affect

• Some minor road river crossings
• Agricultural land on river flats
• Riverside parklands. Coastal parkland areas might also be affected at high tide.
• This level of flooding has about a 10% or more chance of happening any year.

中度洪水

A moderate flooding event can inundate riverside parklands and low-lying backyards and streets. Some homes and other buildings may start to be affected, particularly

• Brookfield near Margate and a couple of properties along Margate Rivulet
• Low-lying areas near Snug River mouth
• Some other low-lying areas near the coast and waterways

This level of flooding has about a 2-5% chance of happening any year.

Storm water, water and sewerage systems may be impacted.

嚴重洪水

Major flooding with a 1% chance of happening could impact:

• Many properties around the mouth of the Snug River
• Some properties near Captain Cooks Creek, Adventure Bay, Bruny Island
• Some properties along North West Bay Rivulet and Margate Rivulet
• May mean some areas of Channel Highway and Bruny Island Main Road may be cut for a short time. Some areas may be isolated.
• At high tide there may be some extra areas also at risk of coastal inundation, such as:
• Margate Dru Point/ Esplanade and Barretta
• Snug foreshore, including areas around the Oval to the caravan park
• Lower Snug/ Conningham near Snug Creek and Old Station Road
• Kettering Marina/ Ferry Road area
• Woodbridge foreshore
• On Bruny Island, Dennes Point, various areas along Nebraska Beach
• Adventure Bay especially around Captain Cooks Rivulet
• Some sections of Bruny Island Main Road near Great Bay, the Isthmus and Alonnah.

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

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。.

期間

5. Keep up to date

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. Act Safe

• 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
• Huon Valley Council’s advice on preparing an emergency pet plan
• 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

Current warnings (TasAlerts) TasALERT.com

氣象局 (BoM)

Emergency Broadcasters ABC 936AM

TASSES Social Media facebook.com/sestasmania

Preparing for Flood Emergencies ses.tas.gov.au/plan-prepare/flood 

國家轉接服務 (NRS) relayservice.gov.au

Kingborough Council www.kingborough.tas.gov.au        6211 8200

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.