Riverine and flash flooding information for communities between Montrose (Islet Rivulet) and Black Snake Rivulet (Granton), including Glenlusk, Rosetta, Chigwell, Berriedale and Austins Ferry

See also the nearby flood guide for Glenorchy city and suburb (south of Islet Rivulet)

Version 1.0 November 2025

To see map information in detail, go to www.gcc.tas.gov.au/residents/your-home/floods-and-stormwater/

Understand your flood risk and get ready

If there is a severe storm bringing heavy rainfall across the Wellington Range, several waterways from Rosetta to Granton could flood. Roads, schools, businesses and properties may flood and Brooker Highway could be cut in several places. This would mean that large parts of these suburbs may become isolated. Travel and business could be difficult or impossible for short periods.

As well as flooding from creeks and rivulets, heavy rain can directly cause flooding in this area. On the maps in this plan you can see flooding from both rivers and heavy rain.

During and following very heavy rain, there is a risk of landslides in steep areas that could damage roads and properties. Flooding and erosion from tides, storm and flood in the Derwent are also possible along the coastal areas in this plan.

The maps in this guide show the level of flooding that has a 1% chance of happening any year (known as 1% Annual Exceedance Probability, or AEP). 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. For example:

• The Brooker Highway may be cut at Granton, Austins Ferry, Claremont, Chigwell and at the edge of Montrose.
• Main Rd may be flooded in many places.
• Roads that cross the Brooker Hwy via underpass will likely flood.

Depending on where the rain falls and how heavy it is, many streets in this area 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 somewhere else, 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.

您有洪水风险吗？

Heavy rain on kunanyi/ Mount Wellington can cause flash flooding in any of the surrounding waterways, often with little warning.  Depending on how the rain falls, creeks, rivulets and stormwater runoff can cause flash flooding that is difficult to predict.

The flooding history of this area is not well recorded.

我应该怎么做？

• Check the maps to see whether your home or business could flood.
• Check your home or business and prepare it, to minimise possible flood damage.
• 洪水期间，检查您是否能够安全地到达家、工作地点或学校。.
• Prepare a Home Emergency Plan. See 做好应急准备 – 个人和家庭应急准备指南。. 
• 如果您可能被隔离并且必须获得服务，您可能需要提早撤离。.

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

该局发布 特大暴雨预警，恶劣天气预警和/或雷暴预警，可能导致山洪暴发 每当 大雨 警告和暴雨发生之间的时间可从一小时到 24 小时或更长时间不等。.

Glenorchy, Hobart and Kingborough Councils share a flood warning system as areas around kunanyi/ Mount Wellington have similar flash-flooding risks and timeframes. This system allows your local council and SES to judge and monitor the flood risk, and release warnings as needed. There are no formal warning levels for the waterways in this area as the river systems are too short.

降水观测 at Claremont, Bridgewater, Mount Dromedary, Collinsvale and other nearby rain gauges can indicate possible flood risks. 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.

这 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.

理解警告和关键信息

Keep aware of what is happening. Check forecasts, observations and warnings regularly.

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

更多信息请参见 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.

Minor Flooding

Minor flooding can affect low lying areas, parkland, orchards and areas near the creeks and rivulets. Vehicles and livestock should be moved for their safety. Some minor roads may be flooded.

Moderate Flooding

In a moderate flood, more extensive flooding occurs and more land, roads and some buildings may be flooded.

Abbotsfield Rivulet, Hilton Creek, Faulkners Rivulet and Islet Rivulet may flood some properties during a moderate flood. It is unlikely that the flooding will be above the floor height of houses.

Major Flooding

In a major flood, flooding will be widespread across this area but mostly shallow. The most hazardous flooding will likely be on:

• Brooker Highway near Berriedale Road
• Brooker Highway north of Box Hill Road, near Upper Hilton Rd
• Main Road near Goulds Lagoon
• Claremont Link Road near the Claremont College Campus,
• Abbotsfield Road, Strathaven Drive and Marys Hope Road
• Roseneath Rivulet

Properties near the rivulets and creeks in this area may be flooded above floor height during a major flood. Many roads, including major transit routes, will be flooded and impassable.

Glenlusk may be cut off from the coast for a time.

了解风险，做好准备，尽可能降低风险，与他人联系，保持警惕，并安全行事。.

洪水之前

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。. 

Check your plan regularly and test that everyone in the household understands what would need to happen in a flood.

准备一个应急包

定期测试收音机和手电筒里的电池。.

3. Reduce your risk from flooding where you can

• 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. Connect with others

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。.

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。. 

• www.TasALERT.gov.au 
• 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
• City of Hobart’s advice on Pet Management and Emergencies

Avoid travelling during and after storms

• 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。.
• Do not turn on electricity or gas until it is tested by a licensed electrician or gas fitter for safety.
• If your home is damaged and you need to stay somewhere else, take your emergency kit and pets with you.
• 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) TasALERT.com

气象局 bom.gov.au/tas/warnings

Emergency Broadcasters ABC 936AM

TAS SES Social Media facebook.com/sestasmania

SES – Preparing for Flood Emergencies

National Relay Service (NRS)

Glenorchy City Council                                            6216 6800

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.