DOCSLIB.ORG

Somerset Dam Emergency Procedure SOQ.001.001.4140

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Somerset Dam Emergency Procedure SOQ.001.001.4140 SOQ.001.001.4140 Manual ofOptrarional Procedures (or Flood Miligation lit Wivcnhct: Dam and Somerset Dam 47 Somerset Dam Emergency Procedure In the event of communications loss with the Flood Operations Centre, the Dam Supervisor at Somerset Dam is to assume responsibility for flood releases from the Dam. Once it has been established that communications have been. lost, the Dam Supervisor at Somerset Dam is to: • Take all practicable measures to restore communications and periodically check the lines of communication for any change; • Undertake the actions sel out below to release flood water from Somerset Dam; • Log all actions in the Event Log; • Ensure the dam is at full supply level at the end of the event; • Remain in the general vicinity of the dam while on duty. ) The actions to be undertaken to release flood water are: • If communications with Wivenhoe Dam are lost, the level in Wivenhoe Dam is to be assumed as the level shown on gauge boards located downstream of Somerset Dam. • The radial gates are to be kept raised to allow uncontrolled discharge. • The regulators are to be closed if the tail water level exceeds EL 68.60 and are generally kept closed. The only exception to this is if the regulators are used to prevent overtopping of the dam. • Sluice gates are operated as either fully opened or fully closed. The order of operntion for opening the sluice gates is LMKNJOIP. Sluices are to be closed in reverse order of opening. Any inoperable sluices are to be dropped from the opening or closing sequences. The sluice gates are to be operated in accordance with the following procedures: o . Case 1 - the level in Somerset Dam is below EL 100.45; or o Case 2 - the level in Somerset Dam is above EL 100.45. These procedures are described below. Revtsion No: 7 o.~ : Novanber 2009 SOQ.001.001.4141 Manua1 ofOpcl1lcionsl Procedures for Flood MiCi8fllion at WiV1:nhoe Darn Md Somerset Dam 48 Case 1 Prooedure !Level in Somerset Dam is below EL 100.45) The sluice gates are to be operated in accordance with the following table: SOMERSET DAM LOSS OF COMMUNICATIONS CASE 1 PROCEDURE CONDITIONS AT SOMERSET ACTIONS AND WIVENHOE DAMS Level in Somerset Dam is below Sluice gates are to be opened Ilt intervals of not less EL 100.45, Level in Wivenhoe than 120 minutes, provided the number of open sluice Dam is below EL 70.0 and falling. gates does not exceed that shown in the "SOMERSET DAM - MAXIMUM SLUICE GATE OPENING" table. Once a sluice gate is opened, no further sluice gate operations are to be undertaken for 120 minutes. Level in Somerset Dam is below Sluice gates are to be closed at intervals of not less EL J 00.45, Level in Wiv~llhoe than 180 minutes. Once a sluice gate is closed, no Dam is below EL 70.0 and rising. further sluice gate operations are to be undertaken for 180 minutes. Level in Somerset Dam is below Sluice gates are to be closed at intervals of not less EL 100.45, Level in Wivenhoe than 60 minutes. Once a sluice gate is closed, no Dam is above EL 70.0. further sluice gate operations are to be undertaken for 60 minutes. SOMERSET DAM MAXIMUM SLUICE GATE OPENING SOMERSET DAM LEVEL MAXIMUM NUMBER OF SLUICE GATES ALLOWED TO BE OPEN Revision No: 7 Da~ : Noyember 2009 SOQ.001.001.4142 MllnlJ:1i arOperntianal Proceduru CO( Flood Miliprion 11 Wivcnboe Dam and Somcucl Dam 49 Case 2 Procedure CLevel in Somer.etDem is above EL 100.45) The sluices gates are to be operated in accordance with the following graph : CASE 2 • TARGET LINE FOR OETERMI>4f:IG SLUICE GATE OPERATIONS 81 ~-------r--------~-------'--------'--------'r-----~, ~h$ ullt p rq;fe~;l'dy __________ j __________-t4~~~t~e~ c f ~~~u I-____+- ______ ~~--------~ 79 + wh~qI.f1I.~ a:._Ih~ O~f:)r[~ l:lf'let LI,..:, .B rn 99 101 103 IDS 107 109 111 SomeflldDamLev.1 tm AHD) Sluices are progressively closed at one hour intervals if operating above the Operating Target Line and progressively opened at one hour intervals if operating below the Operating Target Line. The aim is always to follow the Operating Target Line as closely as possible. 10.4 Equipment Failure In the event of equipment failure the aClion to be taken is indicated in Appendix E for Wivenhoe Dam and Appendix F for Somerset Dam. Revision No: 1 Dale. November 2009 SOQ.001.001.4143 Manual orOpcrational Procedures ror Flood Mitipllon at Wlvenhoe Dam end Somersel Dam 50 APPENDlXA AGENCIES HOLDING CONTROLLED COPIES OF THIS MANUAL Revision No: 7 Dale: Novembr2" 2009 SOQ.001.001.4144 Manual of Operational Procedures for Flood Mitigation at Wivumoe Dam and Somersel Dam 51 APPENDIXB KEY REFERENCE GAUGES 1974 MlnorFlood Moderate Flood Major Flood Gauge Gauge Zero Giluge Gauge Gauge Location Flow Flow Flow Height Height Height Height mARD m m rn"s m m',s m m',s Revision No: 7 Dale: Novem ber 2009 SOQ.001.001.4145 Manual orOperational Procedures ror Flood Mitigation 81 Wivenitoe Dmn and Somerset Dam 52 APPEJ'I.'DIX C WlVENHOE DAM TECHNICAL DATA Revision No: 7 Date: November 2009 SOQ.001.001.4146 Manual of Operational Procedures rot Flood Mitigation al WiveMOC DIII1l and Somusel Dam 53 ~vision No: 7 Dale: Navtmbec 1009 SOQ.001.001.4147 SOQ.001.001.4148 8 I'i ,; • ~" ~'" •e 0 8 ~ 6 .~ '".. .~ ~ "~ ~ '"• D e ].. j ~ • ~ £ i.. " •@ ~ ~ ii; ~ .~" • 0 ~ -.. .~ ••> ~ ,l! SOQ.001.001.4149 Manual of Operational Proccdutn rot Flood Miti,.tion at WiveMOC Dam and Somerset Dim 56 SOQ.001.001.4150 Manua] ofOpemrioo81 Procedures for Flood Mitigation Rt Wivenhoc Dam and Somcrsd Dam 57 W1VENHOE DAM AUXILIARY SPILLWAY RATING TABLE Rc.vision No: '1 Date: November 2009 SOQ.001.001.4151 Manual orOpcrationl1 Procechns fOt' Flood Miliption et Wivnlhoc Dam and Somtttel Dam 58 APPENDIXD SOMERSET DAM TECHNICAL DATA Rt'vision No: 7 Date: Novcmbcr2009 SOQ.001.001.4152 Manuel ofOpemtionDl Pnxc:dttrCs for Flood Miliga\lorl at Wivenhoe Dam and Somcrset Dllm 59 Revision No: 7 Dale: November 2009 SOQ.001.001.4153 Mlloual ofOpcrarional Procedures (or Flood M i f i ~ion at Wivenhoc Oam and Somerset Dam 60 APPENDIXE WIVENHOE DAM GATE OPERATION CONSIDERATIONS Revision No: 7 Dlte: November2009 SOQ.001.001.4154 Manual ofOperZlDonal Procedures ror Flood Mitigation at Wivt:nhoc Darn and Somerset Dam 61 Revision No: 7 Date: November 2009 SOQ.001.001.4155 Manual afOperational Proccdlns for Flood Mitigation el Wivenhoc Dam and Somencl Dam 62 Revision No. 7 pare: NQvember 2009 SOQ.001.001.4156 Manual ofOpemrlonnl Procedures for Flood Mitigation 81 Wivcnhoe Dam nnd SomtrSt( Dam 63 SOQ.001.001.4157 Manual ofOpenuionai Proccd~ for Flood Mitigation at Wivenhoe Dam and Somerset Dam 64 Rovislon No: 7 0810. Novembcr2D09 SOQ.001.001.4158 ManlJ8l or OpenlUcnal Procedures for Flood MitiGAtkln lit Wivmhoe Oem and Somerset Dam 65 APPENDIXF SOMERSET DAM AUXILIARY EQUIPMENT Revision No: 7 Date: November 2009 SOQ.001.001.4159 Manual otOpcrauorW rrocedw'e! ror Flood Miligalion at Wivtnhoe Dam:and SomUV( Dam 66 APPENDIXG HYDROLOGIC INVESTIGATIONS Rcvl!lion No: 7 Dale: No\'cmber2009 SOQ.001.001.4160 ManUII ofOperalional Proccdurc.s foe Food MiliGBlion at Wivcnhoe Dam and Somerset Dam 67 APPENDIXH WIVENHOE DAM PLANS, MAPS AND PHOTOGRAPHS Revision No: 7 Oltl:: Novtmbu 2009 SOQ.001.001.4161 ~ .~ ."• ~ g Ii: Ji ~ ..] ..,• i ...Q ... 1• ~ ~ .~ .S ~ SOQ.001.001.4162 <­ ;; :z !I·~ ~ SOQ.001.001.4163 SOQ.001.001.4164 SOQ.001.001.4165 !• SOQ.001.001.4166 ! I ! 1 ~ 1 .1 ••• ! I > ~ ~• ! L -.J 1 . ~ ~ ~ 1 > ! SOQ.001.001.4167 Manual of Ope ratione 1 Procedures for Flood Mitigillion et Wivenhoe Dam and SomCl'$Cl Dam 74 APPENDIX I SOMERSET DAM PLANS, MAPS AND PHOTOGRAPHS Revision No: 7 Date: November 2009 SOQ.001.001.4168 ~ '" "•~ Jl 1 e • 8 '"~ c ,..<v a 6 .~ .:§• ~ ] ;;; .!! f ."• ~ .." .~ ~ <; !~ 0 z .. .~ •c • ~• :. '" SOQ.001.001.4169 SOQ.001.001.4170 ! i ! ,, I ,I ,• j • -!, 1 ,• 1 ,, •, • ,! j, •, ,• , • SOQ.001.001.4171 SOQ.001.001.4172 SOQ.001.001.4173 Manual ofOperalicnaJ Prccedun:s for Flood Miligalion at Wivcnhoe Dam and Somerset Own 80 APPENDIXJ WIVENHOE DAM - FUSE PLUG BREACH SCENARIOS SOQ.001.001.4174 ) SOQ.001.001.4175 Mllnunl orO~l'alional Procedwcs for Flood MtugaJ.j~n &1 Wivenhoc Dam and Samaset Dam 82 Revision No: 7 Thllc: November 2009 SOQ.001.001.4176 Milnual OfOpClIltioml Procedures for Flood Miugalion at Wivenhoe Dam IUld Somersel Dam 83 Revision No. 7 Dale: November 2009 SOQ.001.001.4177 Manual ofOperationaJ Proccdul'U for Flood Mitigation at Wivenhoe Dam IlrId SometSc:t Dam 84 RevlS)on No: 1 Dale; Novembcr2009 SOQ.001.001.4178 Manual ofOpeflltianl1\ ProcedutC, for Flood MiUption al Wivcrthoc Darn IUld SomeJXt OMrl 85 RC:'Yision No: 7 o..le: NovtlTJbct 2009 SOQ.001.001.4179 'OERM-18' GULF OF CARPENTARIA DRAFT For discussion purposes only .. Flood station data not validated .' . "", " . ~: ott; • 0 ... , • ,0 SOUTH AUSTRALIA ll$l.O ~f. CAlNO _ 11""'101'" Department of Environment and Resource Management (OERM) Streamflow Gauging Stations Legend Queensland and Bureau of Meteorology (BaM) Flood Alert Stations • BoM and councK flood alert stalions e (real-time data vie radio telemetry) Government PIIb,""on dt\tl; 23 F"bruery 2011 • OERM gauging stations Population ~ntr8 Rlllsr I creek. ..-,-"' _ ............... R_.. ........W__ ""'-..... ...................... ...-"'_ ....... D. -"._--- ... ..-110\\_ .. _"""", __- N c:::l Drainage basin ...,__ J ___ .. ...--...._ ... __ ........... -.0-.-._ _ ..... ___.. -.)..... .... - . -.~- .. ... 'M ~ -- - * N~ : TIw toc.lIonI oIltloe 8 ..... "'\1 of Mol~ (801.4) .._<xoo.l._._._~ .. ...... --... ,.." ..., -_ - - al'lCl c:oundlllood lllllofl.
Load more

Recommended publications
  • Seqwater's 22 October Submission / Response To
    SEQWATER’S 22 OCTOBER SUBMISSION / RESPONSE TO QCA REQUEST OF 12 OCTOBER 12 October 2012 I hereby provide Seqwater with a further information request. Seqwater’s detailed responses to each item would be appreciated by COB 19 October 2012, please. Happy to discuss at any time noting the proposed due date of COB 19 October 2012 From: Colin Nicolson [mailto:[email protected]] Sent: Friday, 19 October 2012 1:10 PM To: Angus MacDonald Cc: George Passmore; Damian Scholz Subject: FW: Information Request 12 October 2012 Hello Angus Here are our responses to the above information request. QCA Question 1 - Cedar Pocket Stakeholders (Issues Arising (IA) Cedar Pocket 2012) submitted that more details were required regarding Seqwater’s proposed renewals expenditure [outlined in the NSP] on “electricity supply assets” in 2025-26 at $30,000. Please provide more details regarding this proposed expenditure. Seqwater Response to Item 1 The Assets in question are a property pole, meter box (excluding the meters), cabling and a distribution board. The renewal is scheduled based on the Seqwater “standard asset life” of 20 years for this type of equipment. It was installed in 2005 and will be 20 years old when the work is scheduled. The cost estimate is drawn from the estimated replacement costs as set out in Section 5.2.2 and Section 9 of the Irrigation Infrastructure Renewal Projections - 2013/14 to 2046/47 Report on Methodology. The renewal timing, will be reviewed on an ongoing basis so that it is only delivered when condition warrants. The scope and cost estimate will be reviewed prior to commencement of work to ensure the delivery is efficient.
    [Show full text]
  • Fact Sheet Wivenhoe Dam
    Fact sheet Wivenhoe Dam Wivenhoe Dam Wivenhoe Dam’s primary function is to provide a safe drinking Key facts water supply to the people of Brisbane and surrounding areas. It also provides flood mitigation. Name Wivenhoe Dam (Lake Wivenhoe) Watercourse Brisbane River The water from Lake Wivenhoe, the reservoir formed by the dam, is stored before being treated to produce drinking water Location Upstream of Fernvale and follows the water journey of source, store and supply. Catchment area 7020.0 square kilometres Length of dam wall 2300.0 metres Source Year completed 1984 Wivenhoe Dam is located on the Brisbane River in the Somerset Type of construction Zoned earth and rock fill Regional Council area. embankment Spillway gates 5 Water supply Full supply capacity 1,165,238 megalitres Wivenhoe Dam provides a safe drinking water supply for Flood mitigation 1,967,000 megalitres Brisbane, Ipswich, Logan, Gold Coast, Beaudesert, Esk, Gatton, Laidley, Kilcoy, Nanango and surrounding areas. The construction of the dam involved the placement of around 4 million cubic metres of earth and rock fill, and around 140,000 Wivenhoe Dam was designed and built as a multifunctional cubic metres of concrete in the spillway section. Excavation facility. The dam was built upstream of the Brisbane River, of 2 million cubic metres of earth and rock was necessary to 80 kilometres from Brisbane City. At full supply level, the dam construct the spillway. holds approximately 2,000 times the daily water consumption needed for Brisbane. The Brisbane Valley Highway was relocated to pass over the dam wall, while 65 kilometres of roads and a number of new Wivenhoe Dam, along with the Somerset, Hinze and North Pine bridges were required following construction of the dam.
    [Show full text]
  • Somerset and Wivenhoe Dam Safety Upgrades – Business
    Somerset and Wivenhoe Dam Safety Upgrades – Business Case Stage APRIL 2019 Somerset Dam was built between 1937 and 1959. Wivenhoe Dam was completed in 1985. Both dams were designed to the engineering standards of their time. We now know more about the risks of extreme floods to the Somerset and Wivenhoe Dam walls. Both dams will be upgraded so that they can withstand much larger floods. What has changed since the dams were built? Some things have changed since the dams were built or last upgraded. These include: • significant population growth downstream • advances in dam design and the development of consistent risk assessment methods • improved estimates of extreme rainfall events • data from recent floods and updated flood modelling. An independent assessment has found the dams do not meet modern Queensland Government dam safety guidelines. We now know extreme floods could exceed the design capacity of the dams. Under the Water Supply (Safety and Reliability) Act 2008, we need to upgrade both dams to meet the guidelines. Lowering water levels in Somerset and Wivenhoe In January 2016, Seqwater changed the way it manages both Somerset and Wivenhoe Dams. These changes immediately improved the ability of both dams to withstand extreme floods and maintain flood mitigation. Changes include: • Changing the flood operations manual for both dams • Lowering the water supply storage volume of Somerset Dam to 80% of its normal volume • Lowering the water supply storage volume of Wivenhoe Dam to 90% of its normal volume. Lowering the water supply storage volume increased the flood storage volume in the dams. What to expect Get involved The water supply storage levels in both dams will remain Identifying the social, environmental and heritage impacts lowered during the design and construction of the of the shortlisted upgrade options for Somerset Dam is part Somerset Dam safety upgrade.
    [Show full text]
  • L Z012 Oalt Aegavcd
    t 6 JUL Z012 OAlt AEGavcD Queensland Competition Authority. file ref:444089 Level19, 12 Creek Street, BRISBANE. QLD 4001 For the Attention of Angus MacDonald Dear Sir, Subject-Irrigation Prices for Seqwater Central Brisbane WSS: 2013-17 We are stakeholders in the Central Brisbane WSS and hold a current license to draw water from the Brisbane River between Wivenhoe Dam and Mount Crosby. We would be extremely concerned should the QCA come to the conclusion that the documentation provided by Seqwater provides a justification for any charge to be made for water taken direct from the Brisbane River under the capped 7000MI agreement. We note that the Fernvale Consultation meeting of 22"d June was attended by a very small proportion of the 130 license Holders. We consider that the views expressed about the level of charging per Ml were not representative of our views or the views of the majority of license holders in the Central Brisbane WSS who attended a meeting of 10th July 2012. We support the views expressed in the attached submission and request the QCA accept this submission on our behalf. Yours faithfully, Signature r/lrz-1'151§/1 rr-; L-~,P Print Name of l icense Holder... ............... :.................. .............................................. .. Date 16 ~: ~.... / 'j-l- ~~ MID a&Ua&JII£ A l 'f'EI. 1 &1.1&4..-e&l ~ Pt•omotin8 Effective Sustainable Catchment Manag=ent Submission to Queensland Competition Authority In relation to Seqwater Rural Water Supply Network Service Plan For the Central Brisbane River supply scheme On Behalf of The Members of Mid Brisbane River Irrigators Inc This submission is prepared under 3 main headings 1.
    [Show full text]
  • Darling Downs - DD1
    Priority Agricultural Areas - Darling Downs - DD1 Legend Railway Regional Plans boundary Parcel boundary C o g o Lake and dam o n R i Priority Agricultural Area ver DD4 DD7 DD1 DD5 DD8 M a r a n o a DD2 DD3 DD6 DD9 R iv e r r ive e R onn Bal 02.25 4.5 9 13.5 18 Ej Beardmore Dam kilometres B a l o n To the extent permitted by law, The Department of State Development, n e Infrastructure and Planning gives no warranty in relation to the material or R i information contained in this data (including accuracy, reliability, v e r completeness or suitability) and accepts no liability (including without limitation, liability in negligence) for any loss, damage or costs (including indirect or consequential damage) relating to any use of the material or information contained in this Data; and responsibility or liability for any loss or damage arising from its use. Priority Agricultural Areas - Darling Downs - DD2 Legend Bollon St George Railway Regional Plans boundary Parcel boundary Lake and dam Priority Agricultural Area DD4 DD7 Ba DD1 DD5 DD8 lo n n e R i v DD2 DD3 DD6 DD9 e r r e iv R n a rr Na Dirranbandi ive r lgo a R Cu r e v i R a 02.25 4.5 9 13.5 18 ar k h kilometres Bo To the extent permitted by law, The Department of State Development, Infrastructure and Planning gives no warranty in relation to the material or information contained in this data (including accuracy, reliability, Lake Bokhara completeness or suitability) and accepts no liability (including without limitation, Hebel liability in negligence) for any loss, damage or costs (including indirect or consequential damage) relating to any use of the material or information contained in this Data; and responsibility or liability for any loss or damage New South Wales arising from its use.
    [Show full text]
  • Manual of Operational Procedures for Flood Mitigation at Wivenhoe Dam and Somerset Dam 1 the Controlled Version of This Document Is Registered
    Wivenhoe Dam and Somerset Dam Manual of Operational Procedures for Flood Mitigation Revision 15 | November 2019 15 Revision No. Date Amendment Details 0 27 October 1968 Original issue. 1 6 October 1992 Complete revision and re-issue. 2 13 November 1997 Complete revision and re-issue. 3 24 August 1998 Change to page 23. 4 6 September 2002 Complete revision and re-issue. 5 4 October 2004 Complete revision. 6 20 December 2004 Miscellaneous amendments and re-issue. 7 November 2009 (approved by Gazette notice Complete revision. 22 January 2010) 8 September 2011 Revision but no substantive alteration of objectives, strategies or operating practices. 9 November 2011 Insertion of Section 8 and consequential amendments. 10 October 2012 Revision but no substantive alteration of objectives, strategies or operating practices. 11 November 2013 Revision to take account of changes to the Act and improve clarity, but no substantive alteration of objectives or strategies. Operating practices amended to exclude consideration of Twin Bridges and Savages Crossing following stakeholder input. 12 November 2014 Significant revision including changes from WSDOS investigations, legislative changes and a number of general improvements. 13 November 2015 A number of minor updates to improve readability and application. 14 November 2016 Changes to account for the revised Maximum Flood Storage Level for Somerset Dam and a number of general improvements. 15 November 2019 Revision Revision No: 15 – November 2019 Seqwater Doc No: MAN-0051 Manual of Operational Procedures for Flood Mitigation at Wivenhoe Dam and Somerset Dam 1 The controlled version of this document is registered. All other versions including printed versions are uncontrolled.
    [Show full text]
  • Rising to the Challenge
    Rising to the challenge Annual Report 2010-11 14 September 2011 This Annual Report provides information about the financial and non-financial performance of Seqwater for 2010-11. The Hon Stephen Robertson MP It has been prepared in accordance with the Financial Minister for Energy and Water Utilities Accountability Act 2009, the Financial and Performance PO Box 15216 Management Standard 2009 and the Annual Report City East QLD 4002 Guidelines for Queensland Government Agencies. This Report records the significant achievements The Hon Rachel Nolan MP against the strategies and activities detailed in the Minister for Finance, Natural Resources and the Arts organisation’s strategic and operational plans. GPO Box 611 This Report has been prepared for the Minister for Brisbane QLD 4001 Energy and Water Utilities to submit to Parliament. It has also been prepared to meet the needs of Seqwater’s customers and stakeholders, which include the Federal and local governments, industry Dear Ministers and business associations and the community. 2010-11 Seqwater Annual Report This Report is publically available and can be viewed I am pleased to present the Annual Report 2010-11 for and downloaded from the Seqwater website at the Queensland Bulk Water Supply Authority, trading www.seqwater.com.au/public/news-publications/ as Seqwater. annual-reports. I certify that this Annual Report meets the prescribed Printed copies are available from Seqwater’s requirements of the Financial Accountability Act 2009 registered office. and the Financial and Performance Management Standard 2009 particularly with regard to reporting Contact the Authority’s objectives, functions, performance and governance arrangements. Queensland Bulk Water Authority, trading as Seqwater.
    [Show full text]
  • Somerset Dam
    ENGINEERS AUSTRALIA ENGINEERING HERITAGE AUSTRALIA HERITAGE RECOGNITION PROGRAM Nomination Document for THE SOMERSET DAM BCC Image BCC-C54-16 Somerset Region South-east Queensland January 2010 Table of Contents Nomination Form .................................................................................................................................. 1 Introduction........................................................................................................................................... 2 Letter of support: ................................................................................................................................... 3 Location Maps ........................................................................................................................................ 4 Heritage Assessment 1. BASIC DATA ..................................................................................................................................... 5 2. ASSESSMENT OF SIGNIFICANCE Statement of Significance:.............................................................................................................. 6 Proposed wording for interpretation panel .......................................................................................... 9 Appendix A: Paper by Geoffrey Cossins............................................................................................... 10 References .................................................................................................................................
    [Show full text]
  • Apportionment of Dam Safety Upgrade Costs
    Consultation paper Rural irrigation price review 2020–24: apportionment of dam safety upgrade costs October 2018 © Queensland Competition Authority 2018 The Queensland Competition Authority supports and encourages the dissemination and exchange of information. However, copyright protects this document. The Queensland Competition Authority has no objection to this material being reproduced, made available online or electronically but only if it is recognised as the owner of the copyright2 and this material remains unaltered. Queensland Competition Authority Contents SUBMISSIONS Closing date for submissions: 22 February 2019 Public involvement is an important element of the decision-making processes of the Queensland Competition Authority (QCA). Therefore submissions are invited from interested parties concerning it developing and applying an appropriate approach for apportioning dam safety upgrade capital expenditure as part of the review of irrigation prices for 2020–24. The QCA will take account of all submissions received within the stated timeframes. Submissions, comments or inquiries regarding this paper should be directed to: Queensland Competition Authority GPO Box 2257 Brisbane Q 4001 Tel (07) 3222 0555 Fax (07) 3222 0599 www.qca.org.au/submissions Confidentiality In the interests of transparency and to promote informed discussion and consultation, the QCA intends to make all submissions publicly available. However, if a person making a submission believes that information in the submission is confidential, that person should claim confidentiality in respect of the document (or the relevant part of the document) at the time the submission is given to the QCA and state the basis for the confidentiality claim. The assessment of confidentiality claims will be made by the QCA in accordance with the Queensland Competition Authority Act 1997, including an assessment of whether disclosure of the information would damage the person’s commercial activities and considerations of the public interest.
    [Show full text]
  • KEY POINTS • on the 1 October 2010, Wivenhoe Dam Reached 100 Per Cent for the First Time Since 2001
    Department of Environment and Resource Management - Parliamentary Briefing Note To Minister Robertson Prepared for Parliamentary sittings 5 -7 October 2010 WIVENHOE DAM SPILLING - the likelihood of Wivenhoe Dam spilling and safety KEY POINTS • On the 1 October 2010, Wivenhoe Dam reached 100 per cent for the first time since 2001. c • After the weekend's weather, the dam reached 101 per cent on Monday. • On Monday 4 October, Seqwater commenced controlled increased releases from Wivenhoe Dam through the hydro- electric plant in the dam wall. • Even with substantial rain, Wivenhoe Dam's flood capacity is equal to 3 times Sydney harbour - or - 1.45 million megalitres. • Releases from Somerset Dam into Wivenhoe Dam via the cone valves ceased over the weekend. • Seqwater has a Dam Safety Management Program and a Flood Control Centre. The program ensures that each of its dams is operated and maintained in a manner that is both safe and minimises the risks associated with a dam failure and flood events, including working with local councils and emergency services. Contact: Dan Spiller Approved: Mike Lyons, Director, SEQ Water Grid Comms Telephone: Approved: [Insert title of ADG or DOG] Date: 4 October 2010 Approved: Director-General CTS No. 17669/10 1 RESPONSE • On the 1 October 2010 Wivenhoe Dam reached 100 per cent for the first time since 2001. • After the weekend's weather, the dam reached 101 per cent on Monday 4 October 2010. • The trigger level for full gate releases for Wivenhoe Dam is 102.5 per cent. • Also on Monday 4 October, Seqwater commenced controlled C increased release from Wivenhoe Dam through the hydro- electric plant in the dam wall.
    [Show full text]
  • Title of Your Paper
    Efficient and cost-effective modelling and analysis of hydraulic structures using CFD Thomas Ewing, Marius Jonker & James Willey GHD Pty Ltd The use of Computational Fluid Dynamics (CFD) modelling techniques is gaining broad acceptance in the dams industry as an important design tool for hydraulic structures. This is particularly so in the earlier stages of analysis and design where the construction of physical models would be prohibitive on the basis of cost and time. Current CFD techniques allow users to produce a rapid evaluation of the existing conditions, which when coupled with the ability to quickly test an array of potential scenarios, enables the incorporation of innovative design solutions that may otherwise not have been considered during the design selection process prior to the advent of CFD capabilities. Details of a recent case study are presented to illustrate the broad capabilities and benefits of CFD modelling techniques and their application in engineering analysis and design. The case study involves modelling of the Somerset Dam, a 50 m high concrete gravity dam with a gated overflow spillway including overtopping of the spillway bridge, gates and complex flow conditions in the abutment sections, which individually and collectively could not be accurately analysed with the traditional, simplified methods. The CFD study enabled an understanding of the hydraulic behaviour including discharge efficiency, jet impact loads on the gates and gate operating equipment and bridge structure; extent of potential erosion as a result of jet impingement on the abutments; loads on sluices and behaviour of the stilling basin. In addition to being a very large and complex model, the modelling involved several novel technical aspects.
    [Show full text]
  • Drinking Water Quality Management Plan Lakes Wivenhoe and Somerset, Mid-Brisbane River and Catchments
    Drinking Water Quality Management Plan Lakes Wivenhoe and Somerset, Mid-Brisbane River and Catchments April 2010 Peter Schneider, Mike Taylor, Marcus Mulholland and James Howey Acknowledgements Development of this plan benefited from guidance by the Queensland Water Commission Expert Advisory Panel (for issues associated with purified recycled water), Heather Uwins, Peter Artemieff, Anne Woolley and Lynne Dixon (Queensland Department of Environment and Resource Management), Nicole Davis and Rose Crossin (SEQ Water Grid Manager) and Annalie Roux (WaterSecure). The authors thank the following Seqwater staff for their contributions to this plan: Michael Bartkow, Jonathon Burcher, Daniel Healy, Arran Canning and Peter McKinnon. The authors also thank Seqwater staff who contributed to the supporting documentation to this plan. April 2010 Q-Pulse Database Reference: PLN-00021 DRiNkiNg WateR QuALiTy MANAgeMeNT PLAN Executive Summary Obligations and Objectives 8. Contribute to safe recreational opportunities for SEQ communities; The Wivenhoe Drinking Water Quality Management Plan (WDWQMP) provides a framework to 9. Develop effective communication, sustainably manage the water quality of Lakes documentation and reporting mechanisms; Wivenhoe and Somerset, Mid-Brisbane River and and catchments (the Wivenhoe system). Seqwater has 10. Remain abreast of relevant national and an obligation to manage water quality under the international trends in public health and Queensland Water Supply (Safety and Reliability) water management policies, and be actively Act 2008. All bulk water supply and treatment involved in their development. services have been amalgamated under Seqwater as part of the recent institutional reforms for water To ensure continual improvement and compliance supply infrastructure and management in South with the Water Supply (Safety and Reliability) East Queensland (SEQ).
    [Show full text]