Riverine flooding and flash flooding information for communities and properties in Launceston outside the levee protected areas

For levee protected areas, see the related flood guides for

• Newstead
• Invermay
• East Launceston and Launceston CBD, and
• Launceston – Margaret St area.

Version 1.0 April 2026

This flood guide is for people in the areas of Launceston not protected by levees.  Even if your home is not flooded, everyone around Launceston would be impacted by a major flood in the city. This guide also covers minor and moderate flooding, plus flash flooding in all areas of the city.

Parts of Launceston can flood from the

• kanamaluka / River Tamar Estuary
• North Esk River
• South Esk River.

There are also some minor waterways that can flood properties and roadways.

Launceston levee protected areas

Launceston’s levees reduce flood risk for many areas along the major rivers. However, 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 may flood quickly. In major floods, people in the levee protected areas should evacuate in case

• the levees fail, or
• flood waters overtop the levees.

Please see the related flood guides for the levee protected areas of

• Newstead
• Invermay
• East Launceston and Launceston CBD, and
• Launceston – Margaret St area.

These guides for the levee protected areas have important information about

• triggers for evacuation in major flood events
• how to evacuate, including evacuation routes to use.

If the North and/or South Esk Rivers may reach certain heights, these areas will have:

• A voluntary evacuation warning – where people are advised to leave for their safety
• A mandatory evacuation warning – where people should leave those areas for their safety, and so gas, electricity and water can be cut for those areas.
• In major flood events, people outside flood prone areas need to be aware that
• Major traffic routes through the city may be cut
• Traffic is likely to be very heavy
• There may be cuts to some essential services, such as water treatment.
• There may be cuts to some other services as major transport routes are cut.

Areas that can flood outside the levee protected areas

Rivers can flood some areas outside the levee protected areas. High tides can also increase water levels in areas closer to the River Tamar.

North Esk River surrounding low-lying areas

• Corra Linn, Patersons Island scout camp and nearby historic fishponds plus some homes
• St Leonards around
  • Station Road
  • Hoblers Bridge Road
  • Waverley Road
  • Ravenswood Road
• Norwood and Newstead areas outside the levee protected area, including the caravan park on Sandown Road (Old Mac’s Farm)
• Waverley – Boomer Road

South Esk and River Tamar low-lying surrounding areas

• Cataract Gorge Reserve – First Basin
• Seaport Precinct
• Kings Wharf area
• West Tamar Highway area

Other low-lying areas exposed to flash flooding/ overland flow

Flash flooding is flooding that happens very soon after heavy rain falls. There can often be little warning aside from a general severe weather warning.  There are many minor waterways around Launceston that can flood quickly. Low-lying areas that can flood due to flash flooding or overland flow include parts of

• Relbia near Jinglers Creek
• Kingsmeadows/ Punchbowl
• Newnham – from flash flooding from Newnham Creek and Barnards Creek
• South Launceston
• Waverley
• Faraday Street from Distillery Creek
• Ravenswood Road from Distillery Creek/ North Esk River.

If there is very intense rain, there can be storm water run-off that can affect buildings and roads in any area.

Areas surrounding Launceston

For information about flooding in surrounding areas, see nearby related guides for:

• Lilydale and surrounds
• Nunamara and surrounds
• Hadspen/ Blackstone Heights

您有洪水风险吗？

The Launceston area has a long history of flooding.  Since European settlement

• 1852, 1863 and 1893 had serious flood events recorded for Launceston.
• 1929 was the most severe flooding recorded in modern history. Over a thousand homes and buildings were damaged, with some swept from their foundations. The two suspension bridges over the Gorge area were damaged. Four thousand people were evacuated from Invermay, Inveresk and Margaret Street areas. It was not until 1940 that Launceston recovered from the flood. The 1929 floods provided incentive to build the levees.
• 2016年——朗塞斯顿为应对重大洪水事件做好了准备，并关闭了部分堤坝。.$2.16亿英镑——如果之前的旧堤坝失效，那么此前对堤坝系统的升级工程将避免损失约.
• 2022年 – 朗塞斯顿险些遭遇重大洪水事件。.

我应该怎么做？

• Check the map to see whether your home or business could flood. For more detailed flood maps, see www.launceston.tas.gov.au/Emergency-Management-Hub/1.-Understand-your-risk/Flood to
  • Check the Launceston Flood Maps to assess your level of riverine flood risk.
  • Check the Urban (Stormwater) Flooding Map for flash flooding storm water flood maps.
  • Find out more about Launceston’s flood levees.
• 评估您的住宅或企业，并做好准备以最大程度地减少潜在的洪水损害。.
• 洪水期间，检查您是否能够安全地到达家、工作地点或学校。.
• 制定家庭应急计划。见 做好应急准备 – A guide for individuals and households to prepare for emergencies. If you run a business around Launceston, check out the support by Business Tasmania to prepare for emergencies.
• 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。.

像地图所示的洪水，或者更糟的洪水，还会再次发生。没有两次洪水是相同的。.

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. Be prepared that utility services such as power, gas and water may be lost and there may be interruptions to sewage service. Never drive into or enter flood waters. Roads and bridges may be washed out or unsafe. Avoid travel during floods.

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。.

气象局（BoM）预报、警告和观测

英联邦发出 洪水观察 when predicted weather might cause floods in the area. A Flood Watch may:

• 特定区域，例如 南埃斯克河 catchment, for example, or
• 概括为，例如，适用于 中部北方河流流域

物料清单问题 洪水警告 with specific flood heights for the South Esk and North Esk Rivers.  Flood gauges along the rivers give warnings of

• flood heights, and
• the possible impacts in Launceston.

High tides can also add to flooding.

The Bureau will issue Minor, Moderate or Major flood warnings when the North Esk or South Esk Rivers are likely to reach certain heights.  The table below also shows the trigger levels for SES to issue evacuation warnings due to flooding from these rivers.

River gauge sites	未成年	适度	Major flood	Evacuation Critical Decision Points
North Esk River @ Corra Linn	2.7 mAHD 80 m³/s	3.6 mAHD 200 m³/s	4.9 mAHD 419 m³/s Approx. 20% AEP	6.1 mAHD 800 m³/s About 2% AEP Newstead Levee Protected Area (LPA)
South Esk River @ Trevallyn Pond	128.2 mAHD approx. 420 m³/s > 20% AEP	129.9 mAHD approx. 1500 m³/s Approx. 10%AEP	130.9 mAHD approx. 2,000 m³/s Approx. 5% AEP	2250 m³/s Between 2%-1% AEP Invermay /Inveresk Levee Protected Area
				2500 m³/s – Between <1% AEP City /East Launceston Levee Protected Area
				3500 m³/s – Between >1% AEP Margaret Street Levee Protected Area

Notes:

• m³/s (cumec) – one cubic meter of water flowing past a point in one second. One cubic meter of water equals one thousand litres and weighs one tonne.
• Annual Exceedance Probability (%AEP) is the likelihood of such an event happening any given year, based on historical records up to 2016. With climate change, this likelihood is changing.  Updates of this data is underway.
• mAHD – Metres above height datum. This is a local height for the gauging site.

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/ .

洪水水位

虽然没有两次洪水是相同的，但以下描述了该地区不同洪水级别的情况。即使您的财产没有被淹没，您也需要考虑通行问题。不同强度的降雨，持续时间和地面事先的湿润程度以及降雨地点都会导致洪水。.

Minor Riverine flooding from North Esk/ South Esk and Tamar Rivers

North Esk at Corra Linn at least 2.7m

• Agricultural land/ riverside parklands, for example, St Leonards picnic ground
• Possible road closure – Henry Street
• Low-lying properties near the river on:
  • Station Road
  • Henry Street
  • Killafaddy Street
  • Old Mac’s Farm Caravan Park on Sandown Road
  • Western railway line and yards
  • Scotch Oakburn Park and Queechy Park

• South Esk at Trevallyn Pond at least 128.2m
• Agricultural land/ riverside parklands e.g. Cataract Gorge Reserve and Gorge Swimming Pool, Home Point Parade surrounds
• Kings Wharf
• Seaport Home Point Parade low lying areas
• West Tamar rowing club
• Henry Street area
• Flood waters may begin to impact the south-bound lane of the West Tamar Highway, with traffic diverted to alternate routes.

Moderate flooding from North Esk/ South Esk and Tamar Rivers

• Many levee flood gates will close, restricting movement through the city.  Major routes to close across the river include:
• West Tamar Road
• Henry Street

North Esk at Corra Linn at least 3.6m

As per minor flooding, plus

• Station Road roadway and further low-lying properties near the river
• Henry Street further areas and low-lying properties
• Scotch Oakburn College oval/ workshop
• Hoblers Bridge Road and Netball Centre
• Low-lying properties on Killafaddy Road
• Low-lying properties on Glenwood Road
• Bill Grove roadway, Mowbray.
• South Esk at Trevallyn Pond at least 129.9m
• As per minor flooding plus
• West Tamar Highway both lanes diverted through side streets
• Seaport Boulevard
• There will be some impacts around Henry Street and other areas on the lower North Esk River
• 1600 m3/s @ Trevallyn Pond – voluntary evacuation parts of Invermay (see Invermay flood guide)
• Bill Grove roadway, Mowbray.

Major riverine flooding from North Esk/ South Esk and Tamar Rivers

North Esk at Corra Linn at least 4.9m (Approx 20% AEP)

As per moderate flooding, plus:

• Hart St flood levee closed, parts of Invermay levee closed
• Railyard flood gates are closed
• Blessington Road South Esk River crossing
• Further properties on Station Road
• Larmenier School grounds near the river
• Various sewage pump stations may be impacted
• Johnson Road/ Station Road
• 800 m3/s @ Corra Linn- Newstead – Hart St area mandatory evacuation (Approx 2%AEP)
• South Esk at Trevallyn Pond at least 130m (2000 m³/s)
• As per moderate flooding plus
• 2250 m³/s – Invermay Mandatory evacuation – see Invermay flood guide
• 2500 m³/s – Invermay levees may overtop. Mandatory evacuation of parts of Launceston city centre – see the flood guides for Launceston and East Launceston/ Launceston – Margaret Street area,
• Parts of Seaport area, Kings Wharf flooded
• Other areas – flash flooding from minor waterways (1-2%AEP)
• Flash flooding from minor waterways can happen quickly, with little specific warning. Areas at risk include
• Relbia Road bridge and some low-lying properties along
  • Relbia Road
  • Redwood Crescent
  • Oppossum Road
  • Glenwood Road.
• Kings Meadows near Kings Meadows Rivulet, including Hobart Road
• South Launceston low lying areas near Margaret Street/ Bathurst Street, including Midland Highway near the Wellington Street junction, and nearby low-lying properties
• Newstead low-lying roadways and properties, particularly near Robin Street
• East Launceston roadways and properties around Dowling St.
• Newnham, Lilydale Road and Bell Bay railway line at Barnards Creek crossing, plus several properties.

The maps in this guide show the level of flooding that has a 1% chance of happening any year, both with levee protecting some areas, and if the levees fail or are overtopped. They do not show overland flow/ rainwater run-off. Unless there is a severe storm bringing very heavy rain, the main flooding risks for Launceston are from the city’s major rivers.

Launceston’s two major river systems may flood at the same time and may have different levels of flooding during the same event. The kanamaluka/River Tamar is tidal and may also affect the flooding height.

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.

In a major flood event, closed levee gates and flooded roads can cut the city of Launceston in three until waters recede:

1. The Central Business District and areas to the south of the city centre
2. Areas to the North and North East of the North Esk River/ Tamar
3. Trevallyn/ Riverside area to the West and North West of the Tamar River

Depending on rainfall in surrounding areas, there may be alternative routes. However, traffic is likely to be very heavy.

Even if your home is not inundated, you should be prepared for

• major traffic routes through the city to be cut, and
• 潜在的电力和电信中断。.

If some areas there is a mandatory evacuation order for levee protected areas, electricity, water and gas will be switched off to

• reduce hazards, and
• protect assets so they can be restored as soon as possible after the event.

Travel in the area is likely to be difficult or impossible until

• roads are clear, and
• flood gates are reopened. 

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.

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。.

另请参见 休恩谷好邻居项目.

于

5. 跟上时代

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. 注意安全

• 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
• 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

当前警告（TasAlerts）                     TasALERT.com

气象局                  www.bom.gov.au

紧急播报员 ABC 91.7FM

TASSES 社交媒体 facebook.com/sestasmania

防洪应急准备             ses.tas.gov.au/floodplan/               

City of Launceston                                      Launceston.tas.gov.au       6323 3000

                                                                  朗塞斯顿市应急管理中心

国家接力服务                   accesshub.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.