Riverine flooding information for the Huon River and tributaries at Huonville and Ranelagh townships

Version 1.0 August 2024

要更详细地查看地图，, 查看塔斯马尼亚战略洪水地图.

Huonville and Ranelagh are subject to flooding from:

• The Huon River
• Mountain River
• Skinners Creek

The maps show the expected 1% annual exceedance probability flood level in Huonville and Ranelagh. You are likely to experience a flood of this size at least once in your lifetime.

Huon River gauges at Tahune Bridge, Judbury, and Huonville measure real-time river levels and support flood forecasts and warnings for Huonville and Ranelagh. Other information comes from a network of real-time rainfall gauges. For flooding along the Huon River, the Bureau of Meteorology and the State Emergency Service will issue warnings that predict flood heights and timing at Huonville. These may be expressed as Minor, Moderate, and Major and/or give specific flood heights in meters.

Heavy rain in the South West wilderness can cause the Huon River to flood, and there is generally 6-12 hours warning time of flooding from the Huon River around Ranelagh and Huonville.  Rapid snowmelt sometimes enhances Huon River flooding.   High rainfall lower in the Huon River catchment and its tributaries can also add to flooding.

Mountain River and Skinners Creek are subject to flash flooding. This means there may be unexpected flooding without warning if heavy rain falls in and around Huonville.

Parts of Huonville and Ranelagh may also flood without warning due to storm water run-off when there is very heavy rain.

您有洪水风险吗？

The Huonville area has a long history of major flooding, including in 1901, 1947, 1958, 1960, 1975, 1996, 2016 and 2022. The area often has minor flooding.

我应该怎么做？

• Check the map opposite to see whether your home or business is likely to be at risk of flooding during a flood.
• Prepare a Home Emergency Plan, including whether you need to evacuate in advance of a flood, where you will go and what you need to take. See 做好应急准备 – 个人和家庭应急准备指南。. 
• If you have a business in the area, you should have a plan that covers flooding.  Business Tasmania can help– see www.business.tas.gov.au/manage_a_business/ 
• If you need to evacuate or return home during a flood, make sure your route is safe.
• Asses your home or business and know what you need to do to prepare it to minimise possible damage from water inundation.

Floods like the one shown on the map, or worse, will occur again. No two floods are the same.

如果您住在低洼地区或靠近水道，您的房屋可能会被淹没。即使您的家是安全的，您也可能需要绕过洪水地区，或者您的道路通行可能会受到阻碍。切勿驾车进入或进入洪水区域。道路和桥梁可能被冲毁或不安全。请避免在洪水期间出行。.

了解该怎么做可以拯救你的生命并帮助保护你的财产。制定家庭应急计划是准备工作的最佳方法之一。决定天气和降雨触发条件，以便知道何时采取行动。.

澳大利亚气象局天气预报、警告和观测

The Huon River has several real-time river gauges and a network of rainfall gauges that can support flood warnings.  Floodwater at Judbury generally takes a couple of hours to reach Huonville. Monitor rainfall totals and river rises at www.bom.gov.au/tas/flood/ .

Whenever rain that may lead to flooding along the Huon River is expected, the Bureau will issue warnings when the river reaches specific heights.

Mountain River can rise quickly after rainfall and so there can be little to no warning of flooding.  There are no river gauges on Mountain River nor Skinners Creek.

Whenever 大雨 is expected in an area that may lead to flooding, the Bureau issues

• Severe Weather Warning and/or
• Thunderstorm Warning for heavy rainfall that may lead to flash flooding.

The time between the warning and heavy rain falling can vary from an hour to 24 hours or more. It is best to act on the warnings from the Bureau of Meteorology rather than wait for local flooding alerts around Mountain River and Skinners Creek.

Tracking Rainfall on Kunanyi/ Mount Wellington can help predict flooding around Mountain River. Go to www.bom.gov.au/tas/ .

这 Mt Koonya Radar is useful to see when and where heavy rainfall is falling and is available on the BOM Weather app and website.

Download BOM Weather app and set your location to receive push notifications of warnings (more details at www.bom.gov.au/app/) .

Listen to ABC 936AM or go to tasalert.com for warnings.

理解警告和关键信息

留意周围发生的事情。定期查看预报、观测和警报。.

• TasALERT.com
• 您当地的ABC广播电台 或
• 这 气象局 网站.

	建议 (黄色): 事件已发生。无即时危险。请保持关注，以防情况发生变化。.
	观察并行动（橙色）： 威胁级别有所提高。情况正在变化，您需要立即开始采取行动来保护您和您的家人
	紧急警报（红色）： 紧急警报是最高级别的警报。您可能面临危险，需要立即采取行动。任何耽搁都可能危及您的生命。.
	社区更新（蓝色）： 关于特定事件或事件，受影响社区的具体信息和最新动态。.
	事件（白色）： 事件是指在成为紧急警报之前的初次发生。一旦报告了事件，TasALERT 就会发布基本信息，包括事件的类型和地点。.

更多信息请参见 www.ses.tas.gov.au/warnings/ .

Flood levels around Huonville

While no two floods are the same, the following table shows what is likely to happen if there is flooding around Huonville. Even if your property is not flooded, you need to think about access.

The rainfall amounts that might cause such an event are examples. Other levels of rainfall can cause flooding depending on

• where the rain falls
• how heavy the rain is
• how long the rain lasts and
• how wet the ground is beforehand.

Minor flooding – over 4 metres @ Judbury / 3 metres @ Huonville

• Spill over riverbanks and cover nearby low lying areas.
• Causes minor flooding of agricultural and horticultural land along the river flats with some stock losses unless moved. Livestock should be moved from low lying areas near waterways.
• Can close the Channel Highway at Huonville
• Can inundate some minor roads, paths, tracks and low level bridges.
• May come up through drains in nearby streets.
• Affects low lying backyards and buildings below floor level.
• Covers riverside parklands, camping areas and may affect the caravan park.

Moderate flooding – over 5.3m @ Judbury / 3.6m @ Huonville

• Causes more extended and deeper flooding of agricultural and horticultural land along the river flats with some stock losses if not moved and damage to fences.
• Will close the Channel Highway at Huonville
• Spill over river banks and cover larger areas of land.
• Is likely to flood low-lying areas of Huonville with the possibility of water damage to some properties.
• May reach above floor levels in some houses and buildings, particularly along the Esplanade.
• Some properties should be evacuated.

Major flooding – over 6 metres @ Judbury / 4 metres @ Huonville

Huonville and surrounds have a 5-10% likelihood of experiencing such a flood in any year. A major flood will:

• Cause widespread and potentially damaging flooding of agricultural land, particularly in low lying areas.
• Water is likely to enter some commercial premises along Main Road to the south of the roundabout and surrounding areas unless preventative measures are taken eg sandbagging
• Affect utility services (power, water, sewage etc).
• It may be necessary to evacuate the occupants of some dwellings.
• The Huon Highway between Wilmot Road and Huonville Bridge may need to be closed, isolating multiple areas south of Huonville
• Is likely to have similar consequences to the flooding in June 2016, when flood peaks reached 6.5 metres at Judbury and 4.3 metres at Huonville.

Major flooding – approx. 5.1m @ Huonville

The type of flood that has a 2% chance of happening any year (current climate). Judbury water levels are likely to be around 8.9m. Flooding would likely extend north from the roundabout and affect surrounding areas, with flooding about 80cm higher than in 2016.

Major flooding – approx. 5.5m @ Huonville

The type of flooding that has a 1% chance of happening in any year (current climate). Everyone should be prepared for such an event. Judbury water levels are likely to be around 9.5m. Large areas of Huonville will become inundated, for example

• about 1.7m deep around Short St
• about 1.4m deep around the Huon Valley Council Chambers
• about 65cm deep around the roundabout
• about 15cm deep around the Huonville Library
• Areas not inundated may become isolated, including:
  • All areas South of the Huon River
  • Areas to the West of Main Road around Sale Street
  • Ranelagh and surrounds may be isolated for short periods if Mountain River is flooded.

Skinners Creek flooding

Recent works around Skinners Creek helps mitigate flood risks in surrounding areas. However, flooding may still happen in severe rain events, particularly if there is debris washed down from areas above. If Skinners Creek overtops, Sale Street and some surrounding properties may become flooded.

Huon Valley Council’s mitigation works mean that this extent of flooding is now unlikely with the same level of rainfall. However, people in this area should be aware that there may be some flooding in the area during severe rainfall events.

Mountain River flooding

If Mountain River floods, the areas most at risk of flooding include the caravan park plus nearby Glen Road and Wilmot Road. Ranelagh and surrounding areas may become isolated for a short time as Glen Road and access roads to the north may be inundated, however the new Lollara Road bridge is not likely to be overtopped unless it is an extreme event.

If Mountain River floods at the same time as the Huon River, this will lead to higher flooding in these areas and Huonville.

For flood information for areas upstream of Ranelagh, please see the Mountain River area flood guide.

Know your risk, get ready, reduce your risk where you can, connect with others, stay alert and act safe.

洪水之前

做好应急准备 – 个人和家庭应急准备指南。. 

了解您的风险

塔斯马尼亚州经常发生洪水，可能造成广泛而重大的损失。在过去的 200 年里，塔斯马尼亚州有 78 人死于与洪水有关的事故。本指南旨在帮助您了解您所在地区的洪水风险。.

2. 准备您的家庭

制定涵盖风暴和洪水的应急计划

考虑一下在风暴或洪水来临时你会怎么做，这意味着你会有更好的准备，每个人都会更安全。制定一个你的家庭成员都明白的应急计划。有一些清单可以帮助你完善你的计划——请看 做好应急准备 – 个人和家庭应急准备指南。.

定期检查您的计划，并让家中的每一位成员都模拟可能影响您家庭的洪水场景进行演练。.

准备一个应急包

定期测试收音机和手电筒里的电池。.

3. 尽可能降低洪水风险

• 在购买、维护或开发房产时，请考虑风暴、洪水和其他危险。.
• 修剪或移除您家中、商铺上方或您物业附近电线上方的树木和树枝。.
• 保持雨水槽和排水沟畅通。.

4. 与他人联系

认识你的邻居并参与社区活动。一个联系紧密的社区在紧急情况下更安全、更有韧性，并且有助于每个人在事后更好地恢复。检查家人和邻居是否安全，是否了解正在发生的情况。.

See for example the Huon Valley Good Neighbour project.

于

5. Keep up to date

留意周围发生的事情。定期查看预报、观测和警报。. 

• 塔斯警报 
• 您当地的ABC广播电台 或
• 这 气象局 网站.

6. Act Safe

• 看管好孩子。.
• 为应对可能的电力、供水或网络中断做好准备。.
• 检查您的应急包是否已准备好。.
• 避开积水区域，如排水沟。. 永不 在洪水期间徒步、玩耍、骑车或驾车。您无法分辨水下有什么，也无法判断水深或水流速度。在仅 20 厘米的快速流动的水中，很容易被冲走并溺水。洪水可能很危险。.

当地面发生洪水时

• 将家用物品放在高处以最大程度地减少可能的损坏。.
• 如果安全的话，请关闭水电煤气。. 
• 一种防止污水倒灌回家的好方法是将沙袋放入塑料袋中，然后用它们堵住马桶、覆盖排水管和水槽。.
• 趁还能安全离开就走。.

如果您需要撤离

• 遵循 SES / 塔斯马尼亚警方 的建议。.  
• 带上你的应急包。. 
• 去安全地点或避难中心与亲友会合。. 
• 让别人知道你去了哪里。.

照顾好您的动物

在紧急情况下，您有责任照顾好您的动物。如果您有宠物和其他动物，在洪水或其他紧急情况下疏散需要更长的时间。在洪水可能上涨之前，将牲畜转移到易受洪水影响的地区。欲了解更多信息，请参阅

• RSPCA 应急动物准备指南
• Huon Valley Council’s advice on preparing an emergency pet plan
• 这 初级生产者农场防洪准备工具包.

避免在风暴期间和风暴过后出行

• 不要去观光。游客会延误紧急服务并造成事故。.
• 注意诸如
  • 路面积水
  • 受损的电力线
  • 山体滑坡
  • 损坏的道路
  • 倒下的树木或屋面板。.
• 切勿冒险涉水。洪水中的大多数死亡和救援事件都与驾车涉水有关。.
• 在未受洪水影响的路段，请慢行并打开车头灯。.

之后

• 请继续收听 ABC 本地广播电台的最新消息、道路重新开放信息、社区会议等。.
• 如果您离开了家，在紧急事务管理署（SES）或塔斯马尼亚警方告知您可以安全返回之前，请勿回家。.
• 注意道路危险，例如路面上的泥土或碎屑、损坏的道路/桥梁以及正在进行清理和维修的工作人员。.

如果您的房屋遭到损坏

• 在检查损坏时，请留在地面。注意倒下的树木、碎玻璃、松动的屋顶或其他危险。.
• 穿结实的靴子、手套和防护服。. 
• 在受洪水影响的建筑物内部，请使用手电筒，切勿使用火柴或蜡烛。. 
• 饮用水必须煮沸，直到被告知自来水安全为止。.
• 在经过持证电工或燃气技师安全检测前，请勿开启电源或燃气。.
• 如果您的房屋受损，需要住到别处，请带上您的应急包和宠物。
• 如果安全，请拍摄任何损坏的照片并联系您的保险公司。.
• 看管好孩子。.
• 检查邻居是否安好。.

欲了解更多信息，请访问 www.ses.tas.gov.au

保持知情和获取更多信息

Current warnings (TasAlerts) alerts.tas.gov.au

气象局 (BoM)

Emergency Broadcasters ABC 936AM

TASSES Social Media

facebook.com/sestasmania

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

Huon Valley Council huonvalley.tas.gov.au 6264 0300

全国接力服务 (NRS) relayservice.gov.au

免责声明

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.

本指南中的信息在出版日期时是准确的。尽管已尽一切努力确保所提供数据的有效性和准确性，但州应急服务部门不对数据错误或疏漏负责。请参阅标准 塔斯马尼亚州政府版权与免责声明 更多详情.