Wivenhoe and surrounds flood guide - Tasmania State Emergency Service

Riverine flooding information for areas surrounding Emu River

DRAFT version 0.5 APRIL 2025 – email comments to ses@ses.tas.gov.au

Emu River

If there is heavy sustained rain, Emu River may flood its surrounds in Wivenhoe, particularly when tides are high.

Businesses located south of the TasRail line are most likely to be inundated.
Fern Glade parklands may flood.
River Road may become impassable and isolate some businesses until river levels drop.
Debris may build up around water crossings, including the rail bridge and fuel/gas pipeline. If this happens, these water crossings may be closed for safety reasons.

Flash flooding can affect across Wivenhoe and along the Emu River. Flash flooding means there can be little specific warning beyond forecasts for heavy rain or severe weather.

The maps in this guide show the level of flooding that has a 1% chance of happening any year (1% Annual Exceedance Probability (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 business or home is not inundated, you should be prepared for isolation plus potential power and telecommunications outages.

Travel in the area is likely to be difficult or impossible until roads are clear. If you are safe at home, your work 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.

If the Wivenhoe area is at risk of flooding, there is likely to also be flooding in surrounding areas. This may impact your employees, and their ability to work for you during the flooding event.

If you own or manage a business, you should have an emergency plan that covers floods. This can help you to reduce your losses from flooding and other emergencies. It can also help you to continue operating during and after a major flood. Business Tasmania has resources and support to help – see: www.business.tas.gov.au/managing/risk_management.

Go to TasALERT.com or listen to ABC local radio 102.5 FM for warnings and advice.

洪水のリスクはありますか？

Past flooding events around Wivenhoe include:

1929 – Bass Highway & Fern Glade Road bridges were washed away. There was significant debris at Railway Bridge.
2011 – Fern Glade Road bridge was severely damaged. Low-lying properties in River Road were flooded. There was again a lot of debris at Railway Bridge
2016 – Widespread inundation of River Road industrial area, caused significant economic loss. Debris such as trees and branches at railway bridge impacted nearby assets.
2022 – Significant inundation of low-lying properties in River Road. There was again woody debris pushed against Railway Bridge.

As an example, the 2016 widespread flooding of the River Road industrial area caused

significant economic loss to local businesses, and
the wider effects of disruption to business activity.

どうすればいいですか？

Check the map to see whether your business could flood.
Assess your business premises and prepare it to minimise possible flood damage.
Determine if your employees can safely access the workplace during a flood event.
Prepare a Business Emergency Plan そして Business Continuity Plan to ensure operational resilience.
If your business relies on supply chains or customer access, consider early closure and evacuation, with alternative solutions to minimise disruptions.

Floods like the one shown in the maps, or worse, will occur again. No two floods are the same. If your business is in a low-lying area or near a watercourse, it may be at risk of flooding. Even if your premises are not directly impacted, road closures and infrastructure damage may impact your operations. Never drive into or enter flood waters. Roads and bridges may be washed out or unsafe. Avoid travel during floods.

Understanding your flood risk and preparing in advance can help protect your business assets and employees. Having a Business Emergency Plan is one of the best ways to prepare. Decide on weather and rainfall triggers for when to act.

Burnie City Council has install local river and rainfall gauging for the Emu River. Access via the Orion Portal. Use the following login credentials to access the portal:

Username: EmuRiver
Password: EmuRiver7320!

気象局の予報、警報、観測

The Emu River catchment has no formal flood warnings or flood classification levels. The river catchment is too short to give timely warnings based on river rises.

いつでも大雨 is expected in an area that may lead to flooding, the Bureau issues

Severe Weather Warning, and/or
大雨による鉄砲水発生のおそれがあるため、雷注意報が発表されています。.

The time between the warning and heavy rain falling can vary from an hour to 24 hours or more.

降雨観測 at Burnie (Park Grove) and Yolla and other nearby rain gauges can indicate possible flood risks. Given the very short warning times, it is best to act on the BoM warnings rather than wait for specific flood alerts during rainfall.

ザ N.W. Tasmania (West Takone) 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.

警告と重要な情報を理解する

周囲の状況に常に注意を払ってください。予報、観測、警報を定期的に確認してください。.

TasALERT.com
お近くのABCラジオ局または
the 気象局ウェブサイト.

詳細については、以下をご覧ください。 www.ses.tas.gov.au/warnings/ .

洪水レベル

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

そのような事象を引き起こす可能性のある降雨量は例です。降雨量によっては、他のレベルの降雨量でも洪水が発生する可能性があります。

雨が降るところ
雨がどれくらい激しいか
how long the rain lasts, and
地面がどれくらい湿っているか.
Melting snow can also contribute to flooding.

Minor flooding (5%-10% chance annually)

Some low-lying businesses and parkland along River Road may experience flooding.
Parts of River Road may have minor water accumulation but remain passable.
Heavy rain may lead to localised stormwater runoff affecting business premises.

中程度の洪水 (2%-5% chance annually)

River Road may become impassable.
More low-lying businesses along River Road may experience significant flooding.

大規模洪水 (1% chance annually – comparable to 2022 floods):

River Road will be inundated, isolating surrounding commercial properties.
Businesses in reclaimed or low-lying areas may experience above-floor flooding.
Flooding may extend to Fern Glade Reserve and Fern Glade Road.

Emu River flooding

Depending on where the rain falls and the tide level, major flooding is likely to inundate

River Road roadway, isolating surrounding properties
Commercial properties above floor level, particularly those in the low-lying and reclaimed areas along River Road
Fern Glade Reserve and Fern Glade Road

他の水路からの洪水

If there is heavy local rainfall, there can be flash flooding around.

Old Park River and Pet River (Emu River tributaries)
Other low lying areas of Wivenhoe

Image: Debris accumulation at Railway Bridge in the October 2022 flood event (SES)

リスクを知り、準備をして、可能な限りリスクを減らし、他者とつながり、警戒を怠らず、安全に行動しよう。.

洪水の前

1. リスクを知る

タスマニアではしばしば洪水が発生し、広範囲にわたる甚大な被害をもたらすことがあります。過去200年間で、タスマニアでは洪水に関連した死者は78人にのぼります。このガイドは、お住まいの地域における洪水リスクを理解するのに役立つものです。.

2. ご家庭の準備

嵐や洪水に備えた緊急時対応計画を立てましょう

嵐や洪水が起きた時のことを考えておくということは、より準備ができていることであり、全員がより安全になるということです。家族全員が理解できる緊急時計画を立てましょう。計画を考えるためのチェックリストがありますので、をご覧ください。緊急事態に備えよう – 個人および家庭向けの緊急事態への備えに関するガイド.

定期的に計画を確認し、世帯の全員で、洪水が発生した場合のシナリオを検討してテストしてください。.

緊急キットを準備する

準備完了

電池式ラジオと懐中電灯、予備電池
緊急時の計画など、重要な情報
緊急電話番号リスト
食べ物と水
救急箱
ゴム製または丈夫な革製の手袋

必要に応じて荷造りする

暖かい服装、丈夫な靴またはブーツ
薬、眼鏡、またはその他の必需品
携帯電話と充電器
ペットフードとその他の必要なもの
写真と思い出の品
お金
重要書類、例えば
- 保険書類
- パスポートと
- 出生証明書

ラジオや懐中電灯の電池は定期的にテストしてください。.

3. 可能な限り、洪水によるリスクを減らしましょう

建物を購入、維持、開発する際は、嵐、洪水、その他の危険について考慮してください。.
自宅、事業所、または敷地内の電線近くにまたがっている木や枝を剪定または除去してください。.
雨どいと排水溝をきれいに掃除しておきましょう。.

4. 他の人とつながる

近所の人を知り、地域活動に参加しましょう。つながりのある地域は、災害時により安全で、より強靭になり、その後の復旧を助けます。家族や近所の人の安全を確認し、何が起きているか把握しましょう。.

その間

5. 最新の状態に保つ