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ACT Flood Information for Jerrabomberra Creek

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ACT Flood Information for Jerrabomberra Creek FLOOD INFORMATION FOR JERRABOMBERRA CREEK OVERVIEW Jerrabomberra Creek is one of eight main water catchments in the ACT. Catchments are areas, usually bounded by hills, where the rain drains into the soil and streams and feeds into a river, creek or drainage line. In Canberra’s past, many natural waterways were converted into the familiar concrete storm drain channels as new areas of the city were developed. From its origins in NSW, between Williamsdale and Royalla, Jerrabomberra Creek flows northwards into the ACT and continues through the southern suburbs of Canberra before flowing into Lake Burley Griffin north of Narrabunda. The catchment covers approximately 127 square kilometres and spans approximately 35 kilometres north–south and 9 kilometres east–west. The catchment has a mixture of rural and urban residential developments and agricultural grazing land both in NSW and the ACT. However, land use within the Jerrabomberra Creek catchment is changing, with residential development recently proposed in NSW and industrial development in the ACT. This information sheet outlines information about past and potential flooding for the Ginninderra Creek Catchment and what is being done to mitigate the risk of flooding. The risk of flooding in Canberra is low. JERRABOMBERRA CREEK CATCHMENT JERRABOMBERRA CREEK FLOOD MAP DECEMBER 2018 JERRABOMBERRA CREEK BASIN / SILT TRAP GRIFFITH RETARDING BASIN HINDMARSH DRIVE RETARDING BASIN J O H N G O C O R P D P I W O N S N S S I N G R I C O L R O D A L R D I I A V M E H O NSW V E L D R I V E B E L C O N N E N H W I N S T R E A D E T O Y M N D R I V E A R S H T U D G G G E R R I A N I N V O N E N G I N P A D R K W E A Y R R A D R I V B E A R Y T A O W K T R N U G G G P A E R A N O N H I G D H R W A K A E Y F O R D G D U R N I V G E A M S E H L U R L O L S I E W N D O R Y A R I R A O V G L A E E N D T D H R L D L I H V O R N I E I N D V D R E I M V G A E U R N S G A H L I N D D H U N G R I V E A R D O I V E R D R A O O N I L V D A T H L D E E R L I V A E I D E A B V A R W E T O A N N M B U H A E E I D G R R I H V M I E N E W D L B A O Y A U R L N E E A D V E R N U I E V E B O U R N E A V E N U E JERRABOMBERRA CREEK C O M M O N W E A L T H A V E N U E N O R T H M U G G A W A Y C I S O P N A C A A B S N E R T L B K E L I T E A R U S D R T R A W I I O V A A N E Y V A E V JERRABOMBERRA N E U N E U E F E D E R A CATCHMENT L M H O N CATCHMENT I G A R H O W H I G J H A W CREEK E A Y Y R R A B O M B E R R A A V C E A N N U E B E R R A A V ACT E N U E ACT F E D E R NSW A L H I G A Y A R K W A Y H H W R A P W NSW I G A J U O H M A N A R O Y M D A O R A M A J U R L A N Y O N D R I V E P I A L L I G O A V E N U E C A N B E R R A A V E N U E S U T T O N R O A D FLOOD INFORMATION Every catchment has its own character, which determines how water flows. This is critical during storms that may lead to flooding. The ACT Government has re-assessed predicted flood paths and flood levels for catchments in the ACT using flood studies based on current industry standards. NSW G U N G A H L E I N I V D R R D I V E O O A R N D G U B A R T O N H I G H W A Y A Y H W I G H L A R E D E F Y W A G H H I L R A D E F E B G A I R N T N I O N D E R R N A D H R I I G V E H W A Y E V I R D N I L B E H L C A O G N N N E N U W G A Y E U N E V A Y A E W N K R R U A O P B A H R T D R U A J O O A N R M A R U J A H O V E M I A M L D W I L L R I V E D A O R G N I C O S N S S T O E I T U R P U A T C N R I K O E S E N V S A N I A W V P A E Y N JERRABOMBERRA CREEK BASIN / SILT TRAP P H U E O T C L A E W Y A N W O K M R A M D P O A G C N O R O N A N R O E T G T G U U S T J U E O E N A V H I D E L A E N D E A U G N O E V R A D C E O A N N N R D U B R O E I B R V L R A A V E E N O A V E N U E M E U E P I A L L I G N E L G A R R A Y C A N M B E U R E R G A V G A I V A E R N U D W E N A O Y T J E E E R R R T A S B O M B E R R H A I N D M A M V A R S E E H D L N R I V R U E O E S Y E C A A D W H I N D M A R S N R H D K R B I I V V E R E R E R A A FLOOD INFORMATION P A V G E N N U O E N A R Every catchment has its own character, which determines E G W G A M U how water flows. This is critical during storms that may lead to T B A D R flooding. The ACT Government has re-assessed predicted flood I V E E V paths and flood levels for catchments in the ACT using flood I R D N JERRABOMBERRA studies based on current industry standards. Y O A L L W H CREEK H T G I A H Flood maps have been developed for each catchment and reviewed by CATCHMENT O R A independent experts for accuracy. The maps highlight flow paths, flood depth N O M E R I V and the potential hazard posed by floodwaters arising from Canberra’s channels, O N D Y N A S L U L creeks and rivers. This mapping is complemented by this information sheet and W O O D a list of questions and answers web link. The updated maps show the areas D R I V E which could be affected by flooding from waterways in Canberra during a major flood event, known as a 1% Annual Exceedance Probability (AEP) flood. This D R V E A R I means that in any given year there is a 1% chance of this type of flood occurring. K D E N F O L O L R H T D A See the maps and accompanying information at the ACT Government’s ACTmapi D R I V E website: www.actmapi.act.gov.au.
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